Mechanix Illustrated 1956-06 Vol 52 No 6

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э, No Other OUTBOARD MOTOR IS BUILT LIKE A JOHNSON SEA-HORSE. NONE! THE MANUFACTURER WHO HAS BUILT MORE OUTBOARD MOTORS THAN ANYONE ELSE, HAS MORE EXPERIENCE IN BUILDING THEM BETTER. THAT'S Johnson! 9 MODELS · THE JAVELIN (ЗО hp.) SEA-HORSE 30, Electric or Manual SEA-HORSE 15, Electric or Manual SEA-HORSE IO - SEA-HORSE 7/2 SEA-HORSE 5/2 - SEA-HORSE З Cee what DEPENDasiuirv has done for Eve! 'The Johnson Sea-Horse is a family motor. For a very good reason. It's DEPENDable. Ask commercial users. They choose Johnsons, and work them — hour after hour, year after year — the very same models you buy for pleasure! Yes — DEPENDability makes Johnson the family motor. See the nine new models for '56 — all smartly styled in Johnson's new Holiday Bronze — all quiet — and featuring quicker, smoother starting than you've ever known before! FREE! Write for the Sea-Horse Booklet on 1956 models and features. Complete, factual, helpful. JOHNSON MOTORS, 200 Pershing Rd., Waukegan, lllinois A DIVISION OF OUTBOARD, MARINE & MANUFACTURING COMPANY In Canada: Manufactured by Johnson Motors, Peterborough Johnson SEA-HORSES are DEPEN Daere М „йа d

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Whether you stand at a machine ог ‘sit at a desk .. . whether you're mak- ing $75 a week or $75 hundred a year . . . whether your interest is Power Plants or Paper Pulp, Adver- tising or Electronics . . . chances are I.C.S. has exactly the course you need to get ahead. І.С.5. is not only the oldest and largest correspondence school. It also offers the most courses. 256 in all. Each one success-proved by grad- uates who rose to top technical and administrative positions. Chief en- gineers. Superintendents. Foremen. Managers. Executive assistants. 1. С. $. Courses cover bedrock facts and theory plus practical, on-the-job applications. No skimping. Texts are prepared by leading business and industrial authorities working with J.C.S. editors and educators. They are constantly being reviewed and revised in line with current develop- ments. As an I.C.S. student, you study in your spare time, set your own pace. No time lost getting to class or waiting for slower students to catch up. If you wish, I.C.S. will make progress reports to your em- ployer. You win recognition as a “comer,” one who is ready to move ahead. Thousands of students report pay increases and promotions within a few months of enrollment. All graduates win the coveted, approved 1.C.S. diploma. 3 FREE BOOKS! Check the subject that interests you in the coupon below. 1. C. S. will rush you (1) a special book outlining your opportunities in this field, (2) the 32-page gold mine of career tips, “Ном to Succeed,” (3) a sample 1. C. S. lesson (Math.) demonstrating the famous “1. C. S. Method." “Х” MARKS OPPORTUNITY. Member, National I. C. S., Scranton 9, Penna. рше Staay: Council 65:5 For Real Job Security — Get an 1. C. S. Diploma! INTERNATIONAL CORRESPONDENCE SCHOOLS BOX 23382E, SCRANTON 9, PENNA. (Partial list of 256 courses) Without cost or obligation, send me “HOW to SUCCEED” and the opportunity booklet about the field BEFORE which 1 have marked X (plus sample lesson) : ARCHITECTURE AVIATION - CIVIL, STRUCTURAL LEADERSHIP O Television Technician and BUILDING © Aeronautical Engineering Jr. ENGINEERING O Foremanship RAILROAD CONSTRUCTION D Aircraft & Engine Mechanic Г] Civil Engineering CJ Industrial Supervision CJ Air Brake Equipment O Air Conditioning—Retrig. BUSINESS O Construction Engineering © Leadership and Organization O Car Inspector O Architecture Г) Advertising О Highway Engineering O Personnel-Labor Relations (J Diesel Engineer & Fireman CJ Architectural Interiors © Bookkeeping and Accounting CJ Reading Struct. Blueprints MECHANICAL О Section Foreman C] Building Contractor O Business Administration E] Sanitary Engineering AND SHOP STEAM AND © Structural Engineering O Surveying and Mapping DRAFTING Г) Building Estimator. C] Building Maintenance O Carpentry and Mill Work Г) Gas— Electric Welding DIESEL POWER О Heat Treatment O Metallurgy O Combustion Engineering O Industrial Engineering O Diesel—Elec. O Diesel Eng's O Business Correspondence О Public Accounting O Creative Salesmanship О Heating O Federal Tax O Aircraft Drafting Г] Industrial instrumentation © Electric Light and Power © Painting Contractor © Letter-writing Improvement C Architectural Drafting O Industrial Supervision Г] Stationary Fireman О Plumbing G Office Management O Electrical Drafting O Interna! Combustion Engines C) Stationary Steam Engineering O Reading Arch. Blueprints CJ Professional Secretary O Mechanical Drafting LJ Machine Design-Drafting ART O Retail Business Management C Mine Surveying and Mapping © Machine Shop Inspection Г) Sales Management О Plumbing Drawing and O Machine Shop Practice TEXTILE C] Carding and Spinning CJ Cotton, Rayon, Woolen Mfg. O Cartooning Г] Stenographic-Secretarial Estimating C] Mechanical Engineering O Finishing and Dyein a commercial Ante O Traffic Management O Structural Drafting © Quality Control Е O Loom Ниге a Textile Des'ing ashion Illustrating CHEMISTRY ELECTRICAL O Reading Shop Blueprints C) Textile Eng''g Г] Throwing О Magazine illustrating : A £ Show Card and Sign Lettering CJ Analytical Chemisty O Sketching and Painting E] Chem. Lab. Technician AUTOMOTIVE O General Chemistry O Auto Body Rebuilding O Natural Gas Prod. & Trans. © Auto Elec. Technician CJ Auto-Engine Tune Up O Automobile Mechanic Names ——————QM € ÀÓmÀ € € OE PA m O Electrical Engineering O Electrical Maintenance О Electrician CJ Contracting O Refrigeration O Warping and Weaving O Sheet Metal Worker x MISCELLANEOUS | O Тоо! Design 0 Toolmaking Г) Domestic Refrigeration O Lineman RADIO, TELEVISION Г) Marine Engineering HIGH SCHOOL Е 0 Industrial Electronics Г) Ocean Navigation C] Commercial O Good English © Practica! Radio TV Eng'r'ng © Professional Engineering © High School Subjects Г] Radio and TV Servicing O Short Story Writing O Mathematics O Radio Operating D Telephony C Petroleum Engineering D Plastics i O Pulp and Paper Making Home Address. Working Hours... A.M. to P.M. Canadian residents send coupon to International Correspondence Schools, Canadian, Ltd., Montreal, Canada. . . . Special tuition rates to members of the U. S. Armed Forces. City. Zone .— . State Occupation. When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED E 1

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RMT АС EF ASW: СТЕСТ SPECIAL FEATURES Control The Weather And Control MiheswWorlde— ec ut Sr ыгы Dick Halvorsen 49 Car Outlook For 1957 .............. Stanley Н. Brams 60 Be Your Own Weather Forecaster ........ George Laycock 66 МІ $20,000 Highway Safety Contest! 74 Cover Story: The Car-Boat That Flies ........................... 84 - These Birds Are Real Gone .................... Lyman Gaylord 100 . How To Test Your Fishing Tackle ........Воу Н. Martin 104 TOM McCAHILL Bo mhe:Chiévrolet.....n deeper ыны 86 iliests-FhezChrysler-300B cnr anniari hhn 90 ‚ 164 Mail For McCahill REGULAR FEATURES ММ: He Solved A Thorny Problem...Jack B. Kemmerer 56 Inventions Wanted! 59 People Who Do CE They Dive For Oil 64 luu par... ertt e ler DATEN 94 Пола ЧОИ M лы M MC. i OT This Month's Bright Idea: 7-Way Saw Set ...................... 103 SHORT FEATURES Басин Сое INUtS. eie te cete ett teta eed ат Dk Wyesthernsblipsikxass hiec eee e eleme E How To Read The Clouds .......................:...... Push-Button Climate ............................... Automatic Driving Range .............. sees Push-Button Motorcycle BAGVAT ORG pace Эаресе ат. DEPARTMENTS пев Еа ог Workbench... ease ИИ... 8 Bixvention-Glme ceca eei eet E КОШЕДИ, 14 Јесу ЗВ eet go ec nee eco 18 Hot Rods And Custom Cars: The New Safety Rules ...... 22 Conquest Of Space: Are The Russians Beating Шей Ого PACE? алал m 26 эреак © fe) ODS) «eere eere rone ERES 43 PE ALC TITS (Grigio Gee Айс TES 45 Seton SIDU CUORE 47 Question! Of The Month ................ essere: 178 (continued on page 6) 2 : Cover: Painting by Gurney Miller Mechanix Tilustrated PUBLICATION JUNE 1956 W. Н. FAWCETT, JR. president ROGER FAWCETT general manager ROSCOE K. FAWCETT circulation director GORDON FAWCETT secretary-treasurer RALPH DAIGH editorial director JAMES B. BOYNTON director of advertising LEE WILSON production director AL ALLARD art director RALPH MATTISON associate art director WILLIAM L. PARKER editor ROBERT G. BEASON assistant editor LAWRENCE SANDERS feature editor J. ROBERT CONNOR news editor HARVEY GARDNER science editor ROBERT BRIGHTMAN crafts & hobbies editor FRED HONIG associate editor JOHN J. SMITH associate editor AL HEIGHINGTON art editor FRED COSPITO art associate MARK BINN art associate HARRY FASS art assistant BILL FLEMING art assistant’ HELEN E. SLOWIN production editor Volume 52, Number 6 Permission hereby granted to quote from this issue of this magazine on radio or television, provided a total of not more than 1,000 words is quoted and eredit is given to the title of the magazine and issue, as well as the statement, copyright (956, by Fawcett Publications, Inc. MECHANIX ILLUSTRATED is up monthly by Fawcett Publications, Inc., Fawcett Building, Fawcett Place, Greenwich, Conn. Editorial offices: 67 W. 44th St., New York 36, Y. Advertising manager: Garrett Livingston. Advertising offices: 67 W. 44th St., New 6, 612 N. 0 Б 2 Michigan Ave., Chicago 11, Ul; 672 S. Lafayette Park Place, Los Angole p 57, Cal.; 110 Sutter Siren San Francisco 4, С: 659 Guardian Bldg., Detroit 26, Mich. Entered as second class matter M the post office at Greenwich, Conn., under the act of March 3, 1879; with additional entry at Louisville, Ky. Printed in U. S. A. Title registered. um in the U. S. Patent Office. Copyright 1956 by Fawcett Publica- tions, Ine. Reprinting in whole or in Tart forbidden except by permission of the publishers. Address manuscripts to New York editorial office. Unaccept- able contributions will be returned if accompanied by sufficient first class postage. Not responsible for lost manuseripts or photos. All remittances and correspondence concerning subscriptions as well as notification of change of address should be ad to MECHANIX ILLUSTRATED Circulation Dept., Faweett Place, Greenwich, Conn. Price 25e a copy. Subseription price $3.00 per year in the U. S. and possessions and Canada. All other countries $6.00 per year. Foreign ыннан and sales should һе remitted by International Money Order їп U. S. funds payable at Greenwich, Conn. MEMBER AUDIT BUREAU OF CIRCULATIONS — p S їй C a

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i these 8 Experts сап help you _ \ Get into a High Pay ACCOUNTING CAREER | If your heart is set on a larger in- come and all that it means . better home—fine car—larger bank account—more of the good things of life.... If that’s your ambition and you are really serious about it, then you owe it to yourself to get the REAL FACTS about LaSalle Account- ing, and the many good-pay ор portunities that can be YOUR through LaSalle’s famous Heins Method plan. It matters not whether you've had a single dày of experience in this field—or whether you have already started but want to climb higher. LaSalle's expert training is . designed to take you from where you are... to where you want to be... in higher positions and a lifetime career of security and good income. WHY YOU CAN'T FAIL TO GAIN You see on this page a panel of experts who know Accounting from A to Z...all the way from Basic Accounting, on up through Accounting Systems, Cost Ac- counting, Auditing, Income Tax, and training for the C.P.A. cer- tificate. These are only part of our instruction staff. But what is most important to you . .. These C.P.A.'s and Export E Accountants know how to impart their knowledge to others . . . how to help you prepare quickly yet thor- oly for success in this lucrative field. The proof? What stronger proof could there ‘be than that more than 4,200 Certified Public Accountants (one out of every 13 of the U.S. total) has trained with LaSalle? Or the hundreds of thousands of men and women whom LaSalle has helped qualify rapidly for more money, a brighter future, in a high- pay-lifetime career? These thou- sands came to us with different backgrounds of experience and varying degrees of ambition. Many have reported raises and promo- tions after only a few weeks of training. Thousands of them have written to say they are now earning 50% more—even double their «former in incomes—often in less than à year. hese letters are published in book form for your inspection. They were written by real people, with real income, problems and ambitions—people who might be your next-door neighbor. Yes, if you are really sincere in wanting to better your position— start your income climbing—enjoy a lifetime career of high standing and high reward—this friendly staff of experts can help you. FREE BOOK ...all without cost or obligation. LaSalle’s famous staff of Accounting authorities are helping thousands prepare for fast pro.notions and big- ger pay. They can do the same for you! SAMPLE LESSON SENT FREE MAIL COUPON BELOW You don’t have to wonder what LaSalle's Accounting plan is like. You will be sent a free sample lesson; which does not obligate you in any way. Study it—keep it —see for yourself how simple, clear, and easy it is to master. This is an actual lesson right out of the regular training—to show you exactly how LaSalle's Problem Method has trained more than 1,350,000 men and women from all walks of life. Also ... the latest book, “Ас- countancy, the Profession That Pays," gives all the latest facts about the new and growing oppor- tunities in several different fields of profitable employment. This can be an important day in your life. À coupon like- the one below has started hundreds of thousands of men and women . toward à bigger job, a larger in- come. It can do the same for you. Мете National Home Study Council EXTENSION UNIVERSITY A Correspondence Institution 417 S. Dearborn St., Dept. 6493H, Chicago 5, lil. Send free Sample Lesson in Accounting—also, latest free book, "Accountancy, the Profession That Pays" FREE SAMPLE LESSON i СЕА Le a ы ы Le eae ee When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED - 3 hs. N Age: oi coit d

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- Now . .. anything you can see brought up 15 times closer! from 1 to 50 miles new, amazing POWERHOUSE EXTRA LONG RANGE TELESCOPE 9 Metal Draw Tubes! 9 Extra Sharp! 9 Deluxe Model! 9 Converts into Microscope! TIMES AREA 225 MAGNIFICATION шт» CD to this > These two dramatic photos of the Washington Monument prove beyond words the terrific power of this amazing tele- scope. The tiny photo is as the naked eye sees it miles from the nation’s capital. The big picture is what the POWERHOUSE gives you—225 times the area! MADE IN GERMANY by 101 YEAR PLANT This extra long range POWERHOUSE TELESCOPE was developed by a reputable German factory. Known for qual- ity products for over 100 years. Not a toy with cardboard, tubes! A real optical instrument with heavy-duty METAL draw tubes and PRECISION MADE lenses of amazing power. Every detail reflects German know-how and legendary © workmanship. 7 SUPER FEATURES 1. Polished METAL tubes. 2. Smooth focusing. 3. Con- toured eyepiece. 4. Interior coated objective lens as in expensive binoculars. 5. Permits viewing even in moon- light. 6. Deluxe quality finish thruout. 7. Converts quick- ly into a compound microscope! NOW the super power lenses give you greater range and magnification than famous American binoculars selling for up to $250.00. 4 С =; PORTABLE TRIPOD ENJOY THRILLING VIEWS OF PLANETS! Spend endless hours of sheer enjoyment by observing the moon and other planets at far closer range! Educational too for children as weil as adults! Yes! the POWERHOUSE TELESCOPE lets you and your family travel into outer. space without leaving the earth! POWERFUL LENSES REACH OUT INTO OUTER SPACE Miles melt away. I5 miles become only one. Anything your eye can see—even celestial bodies—are brought closer. They look bigger, clearer, sharper. Observe the moon and its changing phases. Search the skies for the new man-made satellites being launched by the U.S. Navy. Try it on distant buildings, people, ships at sea, sports, airplanes,- birds and wild animals—WITHOUT BEING SEEN. BUY DIRECT & SAVE Buy direct from importer! Reg. 12.95 value—yours for 4.99, with Table Tripod & dust protector. Send only ~ 4.99 cash, т.о. or check for prompt delivery. (COD's plus postage extra.) Satisfaction GUARANTEED or your 4.99 back. Have fun! Have thrills! Order TODAY! THORESEN’S, Dept. 10-F-43 352 Fourth Ave., New York 10, М. Y. dv m Um ип ыш кы эк пп EX GU пш пы GM кш ип шї EX ий EC шї тш та EZ иш UM шй шш RN ти ша MN UE 1 E ‘> MAILTODAY «: Е THORESEN'S, Dept. 10-F-43 - ї 352 Fourth Avenue, New York 10, М. Y. Г] 1 RUSH- n: POWERHOUSE TELESCOPES and Free 1 Tripod at cut price of 4.99 each, on 7 day trial, money back - guarantee. n B (J Check, cash, or т.о. herewith. RUSH prepaid. 1 E O Send С.0.0. plus postage fees. LI [| 1 a E Nume se rusa ohio k seats rU Eee eee Е E i - FRU CODES POUR P ae Sa E E e SO E er i i аас er d RO A баео отн 2. тал Em ып шп ше юн ыш иш кш шт ыш шл ша пи шама ин E ка их тш шщ ма шл ии ша хш ыз на шп таны June, 1956 йл a A

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America’s Fast Grewing industry Offers You Good Pay Plus a Bright Future PERFECT combination for ambitious men. X better pay and a brighter future. I will also for properly trained men. Television's Growth is Making More Jobs, Prosperity Radio is bigger than ever and television is growing fast. Government, Aviation, Police, Ship, Micro- wave Relay, Two Way Communications for buses, taxis, railroads are other growing fields for Radio- Television trained men. Mail Cow on—Find Out About This Tes? d Way to Better Pay Take NRI training for as little as $5 a month. Make $10, $15 a Week Extra Many men I train fix neighbors’ Radios, make extra money, soon after they en- roll. Actual equipment you build gives you practical experience. Я Many NRI graduates make more in two weel = than the total cost of my training. Mail coupon today for кыз Lesson and 64-page Book—Both FREE. J. SMITH, National Radio Institute, Dept. erc, Е МТН 9, D.C. Our 40th Year. » Nothing takes the place of practical & experience. That’s why NRI train- 7 ing is based on LEARNING BY | © DOING. My training includes | kits of parts which you use to _Name_ build equipment and get prac- tical experience on circuits common to both Radio and Television. Shown at left is the low-power Broadcasting Trans- mitter you build as part of my Communications Course. y VETS TRAINING plus OPPORTUNITY is the & Let me send you a sample lesson from my $ course to prove you can keep your job while $ TRAINING at home in your spare time for Ё send my 64-page book to show you that Radio- E Television is today's field of OPPORTUNITY Ё ks tate." —W. F. KLINE, Cincinnati, Ohio. no AVAILABLE VETER ANS UAR. Address — lair К = Zones = State es aces write in date of discharge. ; Approved M Member, National al Home е Study Со Council __ i Will Send You А SAMPLE LESSON FREE fo show you how easy, practical if is fo Train at Home for Good Radio-Television Jobs | Trained These Nien “I have a regular job as a police captain and also have a good spare time Radio and Television service business. Just opened my new showrooms and shop." — C. W. LEWIS, Pensacola, Florida. E decided to quit my job and do TV work es full time. I love my work and am doing all А. right. If fellows knew what a wonderful investment NRI is, they would not hesi- “Thanks to NRI, I operated a successful Radio repair shop. Then I got a job with WPAQ, later WBOB and now am an engineer for WHPE."—VAN W. WORK- MAN, High Point, N. Carolina. Tc a = е) aha Mr. J. E. Smith, President, Dept. erc National Radio Institute, Washington 9, D.C. Mail me Sample Lesson and 64-page Book, FREE. | (No salesman will call. Please write plainly.) LL Ae | | | | 21 When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED

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continued from page 2 SPECIAL FEATURES Low-Cost Cooling For Your Home ........ 106 Strikes t Rich zehn 132. SPECIAL GARDEN SECTION Lawn And, Garden Furniture .................. 116 New Garden Products .............................. 194 Garden ips" 5. otn О AUTOMOTIVE Are You Driving A Dripper? .................. 138 BOATING Bonnie HA (Part 2)5 леи ней eS 144 PHOTOGRAPHY Monthly Photo Солп{їе$ї............................. 150 Photography Today .................................. 152 Photo: Wrinkles: ano e ctt ed 154 DEPARTMENTS. Home And Shop Tips .............................. 114 Ereddie:Eumbles--. eM 114 Golden Hammer Award Winners .......... 128 New Products ROI UM E se The Farmer’s Page ......... ЕЕ. 137 Telescope Page (20-power Terrestrial Scope) COMING NEXT MONTH @ How to use the router © How to build your own water skis © How to make your own color prints plus many other exciting features, all in the July issue. Goes on sale June 21st. New VITALIS" Hair Tonic with V-7. Prevents у, unruly “panda hair” New Vitalis keeps hair in place and prevents dry- less grooming discovery. You never have an over- slick, plastered-down look. Try it. You'll like it. 52 Vitalis ANOTHER FINE PRODUCT OF BRISTOL-MYERS June, 1956 ness with V-7, the grease- ` * E

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19 “ Чї diii, ИИ ДАХ ТРОЙ o Ø 06. ~ADIO- COLO yy IN GREAT SHOPS OF COYNE— Largest, Oldest, Best Equipped School Of Its Kind In The U.S. ee. y y TRAIN FOR A FUTURE e соге tamens L a Veterans and Non-Veterans > Whether 17 or up to 45 years of age, pre Training in Mad C upon пр pare for your future now. Don’t be satisfie BET d with a “No Future” job. Train the Coyne pee aes Today for way for a better job in a field that offers a world of opportunities in the years ahead. ELECTRICAL B і @ FR EE / APPLIANCES BOO K 41 ELECTRICAL AND. E А: LEVISION -RAI |^ ] SCHOOL E WE TRAIN YOU IN CHICAGO | CHICACO | Learn the easier, practical way at Coyne, can be included *'Guide to Careers in ELECTRICITY-ELECTRONICS on real, full size equipment. No advanced '— education or previous experience needed. Lifetime employ- and TELEVISION-RADIO'* ment service to graduates. See oes | B. №. COOKE, President : COYNE ELECTRICAL SCHOOL Train in the shops of Coyne—where thousands of successful men equipped school of its kind—established in Chicago in 1899. FINANCE PLAN Enroll now. You may pay most | r t r of tuition later. Part time employment help for students. | no salesman will call. am interested in: CLIP COUPON NOW for big new illustrated Coyne | О ELECTRICITY-ELECTRONICS book. No obligation; no salesman will call. Get vital facts now! О TELEVISION-RADIO A B. W. COOKE, President ө ы FOUNDED 1899 | Name... ae eee oe EUER ELECTRICAL SCHOOL l | Addresi- ali ee ай A TECHNICAL TRADE INSTITUTE OPERATED NOT FOR PROFIT | State... 500 S. PAULINA STREET, CHICAGO, Dept. A6-53H : ELECTRICITY * RADIO x TELEVISION x REFRIGERATION x ELECTRONICS p Сну........................ $ When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED = Bn сЯ Tae Coase, tie Six ne d have trained for nearly sixty years— Coyne is the oldest, best | fon S Paulina St., Chicago 12, IL, Dept. 46-5311 | | Send BIG FREE book and details of your training offer. T'his does not obligate me and

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THE EDITOR'S WORKBENCH Ө This, That And The Other Those sly guys, the inventors, have not ~ been lolling around on their reputations all winter, doing nothing. Fellow out in Los Angeles got tired of the smell of smolder- . ing cigarettes in overflowing ashtrays. So _ he up and invented a self-cleaning ashtray with a built-in water pump that flushes —away the dead and dying butts. Got a - patent on the gadget, too... Also patented, _ by a gentleman from Pennsylvania, is а flashlight which costs so little you just throw it in the trash can when the bat- _ teries burn ош... АП those heaps of dirty white snow piled on either side of the street got a San Fran- : -cisean to thinking of a better way to dis- pose of the stuff. So he invented a snow destroyer that one day may put the con-., _ ventional plows and scrapers out of busi- ness. His machine scoops the snow right inside its body where streams of hot air melt it into water which later is dumped. -into the storm sewers. Cool idea, eh? ... But far more fascinating to me was the i announcement that three scientists have come up with an apparatus which makes it HNE — possible, after all these years, to measure the sense of smell in a rat. Many's the -night I've tossed and turned, worrying whether our little rodent friends could distinguish between the heady aroma of Chanel No. 5 and the garbage outside the . door of Apartment 4B. I always thought _ they could . . . but now we can tell for sure, thanks to science. . . And while we're on the subject of wild life, I have been informed on unimpeach- able authority that pelicans are almost - voiceless. Turtles, on the other hand, have - peculiarly constructed ears which make it © impossible for them to hear the highest 8 notes of a lady soprano or of a violin, a flute or a piccolo. So you can stop wasting your time trying to be the only turtle- charmer in the world. . . "He's got a sweet tooth" is an ancient expression which I have always thought was just a figure of speech. Well, as usual, I'm wrong. Now the boys in the laboratory have discovered that people with their own, original teeth can gauge the sweet- ness of various sweet foods. more ac- curately than guys or dolls equipped with the store-bought or artificial kind of teeth. Glad I wasn't paying for the research, . . And speaking of research, just how tall was Goliath? 'The Old Testament says he stood six cubits and one span in height. In Biblical days a cubit was the distance from a man's elbow to the tip of his middle finger. A span was the distance from the tip of the thumb to the tip of the little finger when the hand was outstretched. Using my own frame for computing the measurements, I figure Goliath was nine feet nine inches tall, which would just about make him eligible for a hot basket- ball team today... And speaking of hot, an ingenious gent in Knoxville, Tenn., has devised a method of measuring high temperatures—for in- stance, in furnaces where you can't use ordinary temperature indicators—by the employment of two identical compounds, one of which has been made radioactive. During the heating there is an exchange of "radioactive and non-radioactive material between the two compounds. The extent of the exchange is proportional to the tem- . perature. By measuring the radioactivity in the two compounds after they have cooled off, scientists can tell what the max- imum temperature was in the furnace. .. See you next month.—Bill Parker ® June, 1956 s4

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:Ф léi ^ this yardstick This challenging creed has made the U. S. Air Force the finest technical service in the world. If you are a man who feels a deep sense of satisfaction from the knowledge of a job well done, the U. S. Air Force offers you a reward- ing and exciting lifc. Skills you acquire in the Air Force will help you choose and sueceed in your future career. YOU GO PLACES FASTER ON THE ALL VOLUNTEER TEAM THE U. S. AIR FORCE. Men with mechanical skills: . measure yourself against i. Mechanics Upon my honor I swear that I shall hold in sacred trust the rights and privileges conferred upon me as а certified mechanic. Knowing full well that the safety and lives of others are dependent upon my skill and judgment, I shall never knowingly subject others to risks which I would not be willing to assume for my- Self, or for those dear to me. In discharging this trust, I pledge myself never to undertake work or approve work which I believe to be beyond the limits of my knowledge; nor shall I allow any superior to persuade me to approve aircraft or equipment as airworthy against my better judgment; nor shall I permit my judgment to be influenced by money or other personal gain; nor shall I pass as air- worthy aircraft or equipment about which I am in doubt, either as a result of direct inspection or uncer- tainty regarding the ability of others who have worked on it to accomplish their work satisfactorily. I realize the grave responsibility which is mine as a certified mechanic, to exercise my judgment on the air- worthiness of aircraft and equipment. Í, therefore, pledge unyielding adherence to these precepts for the ad- vancement of aviation and for the dignity of my vocation. Creed Paste Coupon on Postcard м-45-м!2 and mail to Airman Recruiting Information Branch Box 2202 Wright-Patterson AFB, Ohio l | | | Please send more information оп my A | | | | | | opportunities for enlisting in the U. S. Air Force. I am between the ages of 17- 34 and reside in О. S. A. or possessions. Addressa m t eee e City..

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` inside Trade information On: C5 Check 5 SHEET METAL PATTERN LAYOUTS, 1100 Pages Z NOW! Г] MECHANICAL DRAWING GUIDE, 160 Pages . . TODAY © PLUMBERS & Steamfitters Guides (4 Book $0 -AUDELS Carpenters : and Builders Guides Tuae n ders, Join- —5 LITT Ins [Ace Fanaa Avons Carm xi € Амо, Burtseey E our Se ў = 5б YAT ORI. iters everywhere к dese Guides A a Helping id to Easier W: How to use the steel square—How to file and ЕП чор Bowi ЗЕ ra doors—How to lath—lay floors—How to paint. ~ Step up your own skill with the pu зар дей к су of your trade. Audels —— Mechanics Guides contain Pract - handy dues uid. illustrated Ad a to BU Yd M oH би Trade Information in a dorsed. e e К you want for7 DAYS Send No Money, Nothing to pay Ly ates = MAIL ORDER = AUDEL, Publishers, 49 W. 23 St., “Eo NOT Please send m r FREE EXAMINATION books Dn AUTOMOBILE MECHANICS GUIDE, 1664 Pages. $4 O TRUCK & TRACTOR GUIDE, 1299 Pages . C] DIESEL ENGINE MANUAL, 575 Pages .... E] MACHINISTS HANDY BOOK, 1650 Pages. . . D) WELDERS GUIDE, 400 Pages ........ C) BLUE PRINT READING, 416 Pages | 0) MATHEMATICS & CALCULATIONS, 700. Pages. ы C) SHEET METAL WORKERS HANDY BOOK, 388Pgs. C] MECHANICAL DRAWING & DESIGN, 480 Pages O AIRCRAFT WORKER, 240 тү vet YouCan O TELEVISION SERVICE MANUAL, 434 Pages. à O RADIOMANS GUIDE, 1040 Pages... . . .. ped i ЫП ME i Li ages . . Any Guide © WIRING DIAGRAMS (Light & Power), 272 Pgs. as Б ELECTRICIANS EXAMINATIONS. £5) rapes ^ ages, Deo Hi L1 HANDY BOOK OF ELECTRICITY, 1440 Pages. - O ELECTRIC DICTIONARY, 9000 Terms Startthe О ELECTRIC LIBRARY, 7000 Pages (12 Book Set) O SHIPFITTERS HANDY BOOK, 250 Pages . . . Easy Pay- (© REFRIGERATION & Air Conditioning, 1280 Pgs. ments If C MILLWRIGHTS & MECHANICS GUIDE, 1200 Pgs. s Г] POWER PLANT ENGINEERS GUIDE, 1500 Pages Satisfied [| ENGINEERS & FIREMANS EXAMS, 525 Pages . = Г] PUMPS, Hydraulics & Air Compressors, 1658 Pgs. Ra A i L L3 OPERATING ENGINEERS LIBRARY (3 Books) . = O MECHANICAL DICTIONARY, 950 Pages . THIS O GARDENERS & GROWERS GUIDES a Book Set) O CARPENTERS & BUILDERS GUIDES (4 Book Set) In Your ~ һә Оэ Qn cn Cn Ds (9 р» ie doe Дь. s OD D МӘ je а D IND De IN) fe INJ Pet ia dn IND IND а de IND de Г] MASONS AND BUILDERS GUIDES (4 Book Set ? Г] PAINTERS & DECORATORS MANUAL, 450 Pgs. О HOUSE HEATING GUIDE, 1000 Pages. . . . . 4 z O OIL BURNER GUIDE, 384 Pages . . . . .. . 1 z O HOME APPLIANCE SERVICE GUIDE, 800 Pages 4 Name ~--~------~~-------------------------------------- Address... е ees Occupation a E a n os asap ques as d d» «oco ap aia e» map em c o 0S Саул d ө as OUR AN о Ааа QURE QUE Чы рл а sis oe so E МАВИ ocean ete ned м-6 10 YOUR OWN BUSINESS with BIG EARNINGS in.. ELECTRIC APPLIANCE 50,000,000 Families R E PAI RI NG Are | Your +} созреет trical ap- pliances for friends and Se рее electrical R equipment in stores, etc. Earn up to $5.00-$6.00 an hour or more! New shop method PASE, study training. Bios Kit makes it now Posen Rush name for Е Book, and Special PAY LATER form. CHRISTY TRADES SCHO OL, 4804 Kedzie Ave., Dept. D-5406, Chicago 25. Establish your own profitable. PHOTO-EN- GRAVING business. Make cuts for newspapers, ` printers, and advertisers. Make etched name plates, plaques etc. Instructions furnished, no experience necessary. Sold direct from factory since 1931. First five hundred cuts sold locally or by mail will pay for plant and pay you well for your time. Write for FREE catalog. TASOPE, DEPT. MI-6, AURORA, MO. peu MATERIAL cost OF THIS CUT ac SELLING PRICE $1.00 AND UP B.S. Degree. Acronautical, QOEM. Civil, Electrical, Mec hanical, Pie Engines leering (inc. "Radio Drafting 1-yr. Low rate Students from 48 states, 21 coun- tries. Demand for graduates. G.I. Govt. approved. Enter June, Sept., Dec., March. Catalo; 1066 E. Washington Boulevard Ft. Wayne 2, Indiana ENGINEERING DEGREE IN 27 MONTHS If employed, start part time. Alert dealers can gross $5 hourly profit on own service plus $3 on EACH serviceman. Clean, revive, moth- proof rugs & upholstery on location. No shop needed. Services nationally advertised. Repeat customers. Easy to learn. We locally train and assist you. Quickly established. Easy terms. N Send today for FREE booklet. No obligation. DURACLEAN CO., 6-176 Duraclean Bldg., Deerfield, 111. po FALSE TEETH Rock, Slide or Slip? FASTEETH, an improved powder to be sprinkled on upper or lower plates, holds false teeth more firmly in place. Do not slide, slip or rock. No gummy, gooey, pasty taste or feel- ing. FASTEETH is 'alkaline (non-acid). Does not sour. Checks “plate odor’ (denture breath). Get FASTEETH at any drug counter. YOU BUILD 'EM—WE SELL 'EM EARN UP TO $50.00 A DAY AT HOME Participate in our national sales and sub-contract plan—spare time —full time. You assemble special luggage and cases for photogra- phera, musicians, salesmen, and all types of portables. We supply complete instructions—materials—tools—everything. No previous experience necessary. Free details. Abarsi Casecraft, Dept. HG, S07 W. Sunset Blvd., Los Angeles 12, Calif. 5 with our Home quema Study Course. RESULTS QU. Make Money! Be Popular! патеки: Big Opportunity! Radio, Television, Stage Appearances! ForFree Information regard: price and terms; WRITE. You must state your age. Dummy Catalog 25c. FRED MAHER SCHOOL OF VENTRILOQUISM Box 36, Studio Мі-6, Kensington Station Detroit 24, Michigan June, 1956 T

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к D, INVENTORS ass how to protect your invention. The U. S. Patent Laws provide that any new and useful art, machine, article of manufacture, or composition of matter, or any new and useful improvement thereof, may be patented if the act of invention is involved., Therefore, every inventor with a valuable invention should take advantage of the Patent Laws and proceed for patent protection in order to safeguard . his rights. А patent gives the inventor the exclusive right to prevent others from making, using, or selling the invention claimed in the patent for a period of seventeen years. The Patent Laws were enacted for the benefit of the inventor to give him protection for the features of his invention which are patentable. These features must be properly and con- cisely set forth and claimed in a formal application for patent, in order to comply with the requirements of the Patent Laws. For that reason, unless the inventor is familiar with patent matters, he should engage a competezat registered patent attorney or agent to represent him? We are registered to practice before the U. S. Patent Office and are prepared to serve you in the handling of your patent matters. A specially prepared booklet entitled "Patent Guide for the Inventor", containing detailed information with respect to patent protection and procedure, together with a "Record of Invention" form will be promptly forwarded to you without obligation upon request. CLARENCE A. O’BRIEN & HARVEY JACOBSON Registered Patent Attorneys 63-F DISTRICT NATIONAL BUILDING WASHINGTON 5, D. C. | - When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED . 11 : м E

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AUTHENTIC REPLICAS Reproduced in Ac- tual Size, Design and Balance. Made of Solid Cast Alumi- num. Finished in Gun-metal Black. COLLECTING NOW! E] German P-38 O Colt Cobra 38 © German Luger © German Mauser O Spanish Moxley Russian Tokarev Г) Italian Brevettara © Japanese Nambu LJ Frontier .44 Colt © Belgium Automatic © Colt .45 Automatic O Czechoslovakian Pistol ж © S&W .38 Police Special POSTPAID Folder, 1O« LYTLE NOVELTY CO. 2656-96 Fashion Avenue Long Beach 10, California БҮ ШТП RADIO TUBELESS REALLY WORKS—FOR YOUR LIFE Works WITHOUT TUBES, BATTERIES OR ELECTRICAL PLUG-INS. Never runs down. No burnouts. SMALLER THAN A “PACK OF CIGARETTES! Fits in any pocket or purse. GUARANTEED TO RE- < сеа LOCAL RADIO STATIONS ANY- TIME—ANYWHERE YOU GO! Sensational new Ferrite Selective Tuner—Perma- J Crystal diode, Super SPEAKER-PHONE, y Durable black апа gold plastic case. SEND ONLY $2. 00 Pil, ck, mo) and pay post- man $4.99 COD postage on arrival or send $6.99 for postpaid de- livery. SENT COMPLETE READY TO LISTEN WITH LIFETIME GUARANTEE AND FULL INSTRUCTIONS. Nothing extra to buy— ever. Available only from: MIDWAY COMPANY \Print YourOwn Cards, Stationery, Advertising, Circulars, labels, photo and movie titles, геһ work, tags, ete. Save money. Sold direct from fac- tory only. Raised printing like engraving, too. Own a Printing Business Print forOthers,Good Profit. Have home shop. pone pees i Senior $27 up. We supply eve- rything. Easy rules. Pays for self in short time. Write for free гаршок ашала апа эү KELSEY PRESSES, C- Conn. PEE WEE

Dept. WMI-6 KEARNEY, NEBR. HOME TRAINING NOW. AVAILABLE Get in on Big Money opportunities in Plastic molding, casting, forming, carving, etc, Earn as you learn with Interstate's professionally prepared course. Ali plastic materials furnished. WRITE FOR INTERSTATE TRAINING SERVICE BOOKLET * DEPT. C-4. PORTLAND 13, OREGON YOU MAY THINK YOU'RE ‘it's easy to be taller! Change to “ELEVATORS”, the amazing - height- increasing shoes that make you almost 2 inches . taller instantly . . . confidentially. Only you know “ELEVATORS” secret, but everyone . notices the differ- ` ence. So, don't just think you're tall enough; BE SURE! Wear - "ELEVATORS"'! —Write for free booklet - -STONE-TARLOW CO., INC., Dept. Mi-6-56, Brockton 68. Mass. 12

WHAT DO OTHERS THINK?

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Famous SPEEDWRITING shorthand. 120 words рег minute. No symbols; no machines; uses ABC's. Easiest to learn, write and transcribe. Low cost. 300,000 taught by mail. For business and Civil Service. Typing available. 33rd Year. Schools in over 400 cities. Write for FREE booklet to:

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МЕМ Troubled with GETTING : U UP NIGHTS, Pains in BACK, HIPS, LEGS, Tiredness Loss of Physical Vigor If you have these symptoms then your troubles may be traced to Glandular. Dysfunc- tion . . . a constitutional disease. Medicines that give temporary relief will not remove the cause of your trouble. Neglect of Glandular Dysfunction often leads to premature old age and sometimes in- curable malignancy. The past few years men from over 3,000 com- munities have been successfully treated here at the Excelsior Institute. They have found soothing relief and a new health and zest in life. The Excelsior Institute, devoted to the treatment of diseases peculiar to older men by NON-SURGI- CAL methods has a NEW FREE BOOK that tells how Glandular Dysfunction may be corrected by proven NON-SURGICAL treatments. This book may prcve of utmost importance in your life. Write today. There is no obligation. Excelsior Institute, Dept. B-3931, Excelsior Springs, Mo.

June, 1956 Law Course. All necessary books and lessons provided. Moderate cost; · üt a

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1 great CHICAGO @ 5 | wonderful aid of HOME TRAINING MOVIES ond (3) | 6 big shipments of electronic parts for setting up your Р Ў own HOME LABORATORY. You work over 300 con- ...one of the Nation's FINEST! NOW...from D T I's MILLION DOLLAR TRAINING CENTER Learn to master TELEVISION U TORAATION RADIO - ELECTRONICS is^ by getting EVERYTHING YOU NEED! America's amazing multi-billion dollar Television field offers a chance of a lifetime to ge? started toward a good job or your own business. With over 400 TV stations in operation and more than 30 million receivers in use, Television is one of today's mos! promising fields. Mail coupon today. See how you may prepare to cash in on this grand opportunity. Get ALL of your training AT HOME... including setting up your own HOME LABORATORY See how you may now get one of today's most com- plete, effective combinations of major home training aids — including (1) well illustrated lessons, (2) the struction and test procedures to get the practical expe- rience you need. This includes building and keeping a 5 INCH "SCOPE", Vacuum tube VOLTMETER, and a big 21 INCH TV SET. (DTI offers another home training in Television-Radio-Electronics, but withput the TV set.) Mail coupon today for exciting facts. [Їн Build and keep.this BIG DTI Engineered TV set—easily converted to U.H.F. (DTI offers another home training, but without the TV set.) Now, in the heart of the nation's TV Center, you can get all of your preparation in D TI's big, modern, wonderfully equipped training labora- tories. Loads of commercial equipment and ample, well qualified instructors help you get a thorough, practical preparation in the SHORTEST POSSIBLE TIME. Part time student Employment assistance can help you pay your way while in training. EMPLOYMENT SERVICE As soon as you complete either the Chicago Laboratory or Home Training, you'll find D Ті ’s grand Employment Service ready to help you start earning real money. Get full facts. Mail coupon today. ABOVE: You build and keep this big 5 INCH commercial-type oscil- loscope — one of the most useful test units vsed in TV today. MILITARY SERVICE: If subject to mil- itary service, the training informa- tion we have for you should prove very helpful. Mail coupon todoy. Use l6 mm. oniy DTI provides you КИН the б» ee низ NE фи чыи» ало ee cats Ge aaea MUS айшә aS \ loan of visual training Y i th to һе! ACT NOW! MAIL COUPON TODAY | MOVI ES master каре, bas р уен Get this publication FREE! MEMBER OF NATIONAL DEVRY TECHNICAL INSTITUTE HOME STUDY COUNCIL . easier . . . better! ‘One of America's 4141 BELMONT AVE., CHICAGO 41, ILL. DEPT. MI-6-M (ds ; foremost Electronics I would like your Opportunity News Bulletin showing "89 ] Р Training Ways to Earn Money in Televisicn-Radio-Electronics"'; also, Centers” complete facts about the training opportunity made possible by your organization. is Зу у И > D:VRY TECHNICAL INSTITUTE Address Es Apt. j а 1 “CHICAGO 4T, ILLINOIS City. Zone. State Мые, 53 FORMERLY si DTI's Training i is available in Canada 999 DEFOREST’S TRAINING, INC. — —ÀÓM— —ÓÀ — —— —À — — —————————— d When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 5 13

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N ^ tbr, а Т \ “м, | P ЫЎ Pare ы ЛЕ [ох m | UE \ invention Clinic Joseph H. Kraus Іа this column each month Mr. Kraus will answer as many letters as space permits on those subjects he feels to be of widest general interest. Time does not allow him to reply to any letters except those printed here. Address your questions to the Invention Clinic, Mechanix Illustrated, 67 West 44th St., New York 36, N. Y. Tripod Panning Head Ken Brooks of Sioux Falls, S. D., sends prints ofshis patent application for a tripod panning head which also controls the camera shutter. A refinement covers the mechanism as an integral part of the camera. He requests our comments. This is an interesting development but we feel you can do much more with it. At present it is applicable to only one make of camera. Any change or modification in the camera design will render your construction worth- less, so you will need to modify your panning head each time the manufacturer changes his product. Your method is also complicated. . The same result can be obtained by a much more direct and simple mechanism which could be made to work with all cameras pro- vided they can be attached to the tripod head. The cost of production would be much less than in your present design. Center your thoughts around the use of a flexible cable. And you could almost forget the camera re- finement. We doubt you can sell this patent as it now stands. Crystals Richard Rose, Prince Coupe, British Co- lumbia, Canada, says he has discovered a process for making very sensitive crystals for crystal radios. What is our opinion of this process? : You did not describe the process so we have no way of knowing if you have developed something new or if this is merely a rejuvena- tion scheme for old crystal. We recommend that you make accurate Scientific measurements of comparison be- tween your crystals and commercial varieties. If results are favorable, have a search made to see if you can patent your system. Mean- while exert every effort to improve your method. You may be оп the verge of pioneer- - ing something new and worthwhile. 14 Hoops—Pocket Fan William L. Tropf of Lakeland, Florida, wants to know if it is possible to return hoop- rolling to favor. He also proposes an electric fan with flexible blades and a self-contained battery for use at ball games, etc. What is our. opinion of these two items? You, make no suggestions about how you propose to popularize hoop-rolling. You'll have to wrestle with that one. A portable Tom Thumb Pocket Fan with rubber blades was manufactured by Rodorn - of New York. Complete with flashlight battery, it sold for $1.98. The manufacturer has discontinued production, but still has all tools and dies and will be willing to negotiate with any organization which would like to produce and distribute the item.. Patent number is 2,465,446. Home Flour Mill James R. Smith, Jr., of Corpus Christi, Texas, wants to share the idea of a home flour mill with folks who suffer from malnutrition. Why hasn’t someone tried to invent and market such an item? - The chances are good that it will not sell for these reasons: The device is expensive, as is its operation. It cannot produce a pound of flour for the price you can purchase it already, milled. Grain is not easily: available. The best the home mill could produce is a poor substitute for the fine commercial product. Also we feel sure that the lady of the house with her nose and hair full of flour would be acting if she registered a smile of satisfaction over imagined better taste. Nor can we pic- ture a smile on a man with white dust on his dark suit. But go right ahead with your ex- periments, and have fun. Jewel Box Lid Control Lewis Townsend of Detroit, Mich., applied [Continued on page 16] 43.

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(fe INVENTORS -If you believe that you have an invention, you should find out how- to protect it. The first step is to have a search made of the prior pertinent U. S. patents. If a report on this search indicates that the invention appears patentable you can apply for a patent, and the specifications and claims should be prepared. The firm of McMorrow, Berman & Davidson, with offices in Wash- ington, D. C., is qualified to take the necessary steps for you. We can make a preliminary search on your invention, advise you whether we think it can be patented, and prepare your application for patent. Unless you are fully familiar with the U. S. Patent Laws, we recom- mend that you engage the services of a Registered Patent Attorney to protect your interests. The patent laws are your laws. А patent gives you the right to prevent others from making, using or selling the invention claimed in your patent for a period of 17 years. Use these patent laws for your protection. Investigate whether your invention can be patented. If you have what you believe to be an in- vention, we suggest that you have this firm make a search for you. Send for a copy of our Patent Booklet entitled “How To Protect Your Invention," containing in- ` formation about patent protection and patent procedure. Along with this we will also send you an ''Invention Record" form, for your use in writing down and sketching details of your in- vention. We will mail them promptly. No obli- gation. They are yours for the asking. McMORROW, BERMAN & DAVIDSON Registered Patent Attorneys PATENTS ө COPYRIGHTS © PATENTS 139-W VICTOR BUILDING, WASHINGTON 1, D. C. When Answering A dvertisements, Please Mention MECHANIX ILLUSTRA TED 2 15 Л}

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S S AND inven fors Sketch and describe your invention. Sign, date and have this disclosure witnessed by two people who under- stand your invention. Have us make a preliminary search among U. S. patents already granted for similar types of invention. We report on the probable patentability of your inven- tion and recommend your further course of action. ^^” Write for our instructive booklet, “Patent Protection for Inventors” and our convenient “Evidence of In- vention” disclosure form. n VICTOR 3. EVANS ғ Co. Hund. Gane Е REGISTERED PATENT ATTORNEY А 250- G MERLIN BUILDING, WASHINGTON 6, D. с. INVENTORS: I shall be pleased to furnish you, upon re- quest, with information relative to patent pro- = - cedure—without any obligation on your part. PATRICK D. BEAVERS B Е E Registered Patent Attorney Ш 923 Columbian Building, Washington.], D. c. 8 E €. A. SNOW со. [7 { REGISTERED PATENT ATTORNEYS WRITE FOR INFORMATION TO 427 SHOW BUILDING, WASHINGTON 1, D. ©. = | INVENTORS PROTECT YOUR INVENTION BY A- U.S. PATENT. SEND FOR FREE “INVENTION RECORD” “PATENT INFORMATION EVERY. INVENTOR. SHOULD HAVE". ICARL MILLER: | REGISTERED. PATENT ATTORNEY; 1 WOOLWORTH BLDG., 35th. FLOOR, ET 1 COEM FORM П E NEW YORK CITY = d d Invention Clinic [Continued from page 16] for a patent on a push button control for jewel boxes. He states that a patent has been granted on a cover for a truck trailer which uses -the identical principle but on a larger scale. Has he any chance of obtaining a patent? The report which you received is an official confirmation of our own opinion. Neither miniatures пог the ultimate use to which the idea is put is a basis for a patent. But there are dozens of ways by which you can do the same job. If that is your main purpose, you could design another system to attain the goal you seek. We would not be impressed. Lamp Socket, Plug Connector Edward Terminello of Chelsea, Mass., sends | diagrams and descriptions for a jiffy connec- tion maker. What is our opinion? This is a rather poor substitute for any of the many jiffy connecting sockets and plugs which are on the market. Your design re- sponds to accidental flipping of the locking device. Most commercial jobs are reasonably safe on this score. We recommend that you examine the simplicity of present-day com- mercial articles. Airplane Navigation Instruments E. Schmid of Dorchester, Wis., says he has an idea which could be developed into an accurate altimeter, speedometer, and possibly other navigation instruments. But he is lack- ing the know-how, time and money. Where can he find someone who would be willing to develop this on a royalty basis? How can he learn if his idea is worth anything? There is not much you can do with a thought аз nebulous as this seems to be. Fundamentally, you want someone else to give his time, money, and brains to you. You INVENTORS REGISTERED EATENT B PATENT STNFORMATI ON Book and INVENTOR'S RECORD without obiigation GUSTAVE MILLER AMI EXAMINER U. S. PAT. OFF. 1922-1929 Patent Attorney & Advisor DEPT. 1930-1947 66-MI Warner v EDU um NAVY ТЕ 2 Washington 4 PATENT LAWYER INVENTIONS WANTED If you want to market, or sell, your invention for cash or royalties, Write for our Free Booklet. Send no drawings. We also welcome hear- ing from firms, or private capital, wishing to review inventions in any field. We will be glad to send notice of our clients inventions. GLOBAL MARKETING SERVICE 2420 77th Avenue Dept. MD - Oakland 5, Calif. June, 1956 E w)

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га would cut him in on the profits if he is suc- cessful. To this you would contribute a thought which you “realize full well may not work." This isn't a good business proposition for anyone. Automatic Drill Sharpeners Nathan Feigenblatt, Jr., of Brooklyn, N. Y., asks about a device which would sharpen drills while they are rotating. He also sends a design for a drill stand in which drills may be sharpened. It is impossible to shape drills properly by either of the methods you suggest. Once or twice you may be able to produce the proper angle for the lips, but you cannot get lip clearance. This calls for the heel line of the flute to be lower than the cutting lip line. There should be an angle of from 12 to 15 degrees across these points with relation to the body of the drill. We suggest that you ex- amine a machinists’ handbook, then start again. You have nothing of value now. Gun Lock Floyd F. Meyer, U. S. Naval Air Station, Atsugi, Japan, sends a design and description of a gun “lock” for use in sporting goods stores. It would allow for complete examina- tion of the gun, yet prevent insertion of a shell into the firing chamber. What is our opinion? This idea has little merit. Even though in- expensive (except for the tool needed for insertion and removal), the chances for sale аге limited to a few gun makers. Direct sale to sporting goods stores is economically un- sound. Your greatest problem might be in getting protection. This kind of construction is well-known, although it is used for entirely different purposes. There is no reason why a potential customer needs to.try loaded shells in a gun. Empty shells would be satisfactory. Diesel Electric Tractor Charles H. Monroe of Jefferson City, Mo., sends a diagram and description of a Diesel- powered tractor with generator and motors. He points up-some of the advantages. Is this patentable or would he need multiple patents? So far as we can discover, your design offers nothing which is not found in Diesel buses or trucks. Placing the components on a farm tractor does not establish sufficient invention to assure a patent. And although this modification will eliminate some costly gears, it substitutes much more expensive generators, motor and controls. The high point is flexibility. You would need to develop many original designs to properly protect all possibilities, not merely transfer one group to another kind of vehicle. [Continued on page 39]

NATIONAL SCHOOLS ТЕА ‘a ва BRANCHES ОЕ. TELEVISIO ELECTRONICS • RADIO > § IN-OINE DYNAMIC, MODERN SHOP METHOD, НОМЕ TRAINING COURSE Үш get and keep * Registration opplied for ALL this modern, newest, < г practical equipment! t 12 аа * Parts to build a modern TV set, Ede ceteri AM ME - including large screen Picture Tube. : 5 у, * Parts to build a powerful Superhet YOU COVER ALL — = Receiver, standard broadcast and S BRANCHES IN. ok wave, ONE MASTER COURSE - * Parts to conduct many experiments ONE LOW TUITION — опа build — • Continuity Checker 1 Televiiorsincloding els v * RF Oscillator * TV Circuits • Audio 2.Rodio —FM& AM. 7 Oscillator * TRF Receiver * Signal 2. Industrial electronics — Generator 4, Sound recording ond = e Professional Multitester Urin * A MUST for all technicians

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бу 187 м. LA SAUE ST. p ] „105 ANGELES 37, САШЕ CHICAGO 1, ILL. Rush free TV-Radio “Opportunity” Book and sample 1 lesson. No salesman will call. Г] | МАМЕ BIRTHDAY. 3— J 1 ADDRESS... p CITY—— — — ——À— — zomE.— srATE __ VETERANS: Give Date of Dischorge m usus NNNM DUNG икн шшш быа GENS эша шша пыш БЫН INS шыш GR When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 17 m porum

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d cuc = Use this letters column as you see fit—make it а complaint box, question box, suggestion box or even a soap box. But use it! Our only requirement is that you sign your name and please keep ‘em short and interesting. Address mail to: MECHANIX ILLUSTRATED, Letters Editor, 67 West 44th Street, New York 36, N. Y. @ Headstrong Those two soccer-playing guys in Eye- stoppers (April '56 MI) trying to build up their neck and back muscles by hanging weights from their heads are only wasting time. They would get better results if they stood on their heads for an hour each day. I know; that’s how I built up my weak neck. Bernard Gillman Bennington, Vt. How about necking? @ June MI Mystery Allen and Jerry are having a bicycle race. Jerry starts at the same time as Allen but from a point 100 feet ahead of him. Allen’s speed is 21 mph, Jerry’s 20 mph. A horsefly starting with Allen and traveling at 25 mph, flits back and forth from Allen to Jerry during the race. : How far has the fly traveled when Allen is 100 feet ahead of Jerry?. Al Forbes Noranda, Quebec Canada @ Weighty Problem A couple of boys here at the factory were kicking this little problem around recently and it ended up in quite a hassle. Here it is: A metal sphere houses a bird. Total weight of sphere, air inside it and bird is 50 pounds. Now, the bird takes off and flies around in the air inside the sphere. Will the total weight of sphere, air and bird become less when the 18 bird is airborne, or will it remain at 50 pounds? Please advise. Leo Chinowski s Moscow, Idaho Listen, Leo, don’t send us any more prob- lems—we've wasted enough time arguing about this one. Any of you MI readers know the answer? @ April Mystery Solved The pigeon would have to unravel 1,995 feet of ribbon to cover the flagpole from top to bottom. Gilbert Haines Jacksonville, Fla. I think all this stuff about women proposing in Leap Year is a lot of bunkum. I’m a bach- elor with a fair amount of charm and money but I’ve yet to see a girl begging for my hand in marriage. H. Schlotmann : Johannesburg, South Africa Been to Brooklyn lately? Q Rocket Clubs It may not be generaly known to your readers but there are a large number of ama- teur societies which deal with the study of rockets. These societies give their members [Continued on page 21] June, 1956 ti

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CABINET MAKING е LOW COST НОМЕ TRAINING COURSE FOR BEGINNERS & ADVANCED CRAFTSMEN Make money. Learn skills and secrets of fine за Woodworking and tool use. Professionally pre- A pared shop method training tells and shows 9 how. Covers everything. Easy to master. Write for INTERSTATE TRAINING SERVICE Free Booklet DEPT. F4, PORTLAND 13, OREGON LEARN || MEAT CUTTING Train 99995 in 8 short weeks at Toledo for a bright future with security in the vital meat busi- ness. Big pay, full-time jobs—HAVE A PROFITABLE MARKET OF YOUR OWN! Pay after graduation. Diploma given. Job help. Thousands of successful m graduates. Our 33rd year! Send NOW for big, new illustrated FREE catalog. No obligation, G. I. Ap- d. — NATIONAL SCHOOL OF MEAT CUTTING, Dept. 52-6, Toledo 4, Ohio BUILD 16 RADIO CIRCUITS AT HOME WITH THE NEW DE- Ex. LUXE 1956 PROGRESSIVE RADIO ''EDU-KIT" > A PRACTICAL $ 95- HOME RADIO онш = COURSE Learn practical electronics theory, construc- tion, trouble-shooting. 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Dear Editor [Continued from page 18] a chance to participate actively in theoretical study and to apply the results practically to the testing, instrumentation, guidance and firing of rockets. MI readers interested in contacting or form- ing such a group may -obtain information from Reaction Missile Research Society, Inc., c/o John H. Granger, Public Relations Di- rector, Box 1199, State College, N. M. Elbert G. Barrett President, RMRS @ Colt Makes Big Bang I wish to congratulate you and Mr. Robert Hertzberg for the fine story, The Gun That Refused To Die, which appeared in March '56 MI. Let's have some more stories about famous guns of the Old West. John Schreiner Hamburg, N. Y. Keep your sights on MI, John. We have more on the way. { \ I was always under the impression that the original Peacemaker was a .44 Colt. It seems to me that I once read that the old .44 actually carried the name Peacemaker right on the barrel and that the .45 was erroneously la- beled the Peacemaker. Would it be possible to learn which is cor- rect? - Robert Pfeifer Portland, Ore. The Peacemaker was made in all calibers from .22 to .45. @ Gun Info Requested Recently I bought an old flintlock type double-barrel shotgun which has to be loaded through the barrel with а ramrod. On one side: near one hammer is engraved "Clark." On the other side near the other hammer is en- graved “London.” Could you or any of your readers tell me- where this gun was made or during what period it was used? Ralph Little 158 Brooklyn Street North Adams, Mass. @ A-Dirigible Your idea for an atomic dirigible (Why Don't We Build An Atoms For Peace Dirigi- ble? March '56 MI) is wonderful. Many peo- [Continued on page 35] When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED HOW TO FIX ANY PART OF АНТ CAR QUIGKLY-- EASILY RIGHT A STEERING GEAR IGNITION ETHER you're a beginner or an expert mechanic—now you can “breeze through” any “fix-it” job from simple carburetor ad- justment to complete overhaul. Just look up job in index of MOTOR’S Brand-New 1956 Auto Repair Manual. Follow simple step-by-step directions, clear pictures. Presto—the job is done! No guesswork! MOTOR’S MANUAL takes you from ''scratch''—shows WHERE to start. WHAT tools to use. Covers EVERY job on EVERY car built from 1946 thru 1956! 7 ; Everything You Need to Know Covers 737209906 Imperial “Boiled Down'' -from 160 Official Kaiser Shop Manuals ДЕСЕҢ, NEW, REVISED, ENLARG 1056 етее Edition’ contains the ‘meat’ from over У Nash Continental Oldsmobile: Packard 160 OFFICIAL shop manuals—simplified tor YOU. 23,436 essential repair CURIAE tions on over 737 chassis models. n 000 DE porn, More than 2,900 uthis ures. is-how'' paces 000 ‘Service and Plymouth repair ms Lead: inners every ste) Pontiac of the way. "fime-sav ag facto: repair procedures for experts. Instructions and Rambler pictures so CD you CAN'T go wrong. Studebaker Used by U. Army and Navy. willys Try Book FREE 7 Days Thunder- SEND NO MONEY! Pay postman noth- ing. Make Manual show you what it's апера уоп era Same FREE Offer Оп MOTOR'S time and work saver New Truck Repair Manual Covers EVERY job on - EVERY popular make gasoline and Diesel truck made from 1946 W Trial. Check proper box in coupon. and pay On Mail coupon to: MOTOR—Book Dept., Desk 3F, 250 W. 55th St., New York 19, N.Y. MOTOR BOOK DEPT. Desk 3F, 250 W. 55th St., New York 19, N. Y. Rush to me at once (check box opposite book you want): MOTOR'S New это AMA MANUAL. If O.K., I will remit $2 in 7 days. яшоу for 2 months апа a final payment of 95c (plus 5st delivery inges one month after that. Otherwise I will return the tpaid in 7 days. (Foreign price, ri $9 cash with pores yee Morons New TRUCK REPAIR MANUAL. If O.K., I will mit $2 in 7 days, and Ж monthly for 3 months, pius 35c delivery charges with fi l payment. Otherwise I win EH rey postpaid ín 7 pees G eign price, remit $10 ENS with order.) Print Name-.--.---- 2-2 22-7 I Lees see Oo Check box and save 3Sc delivery charge py enclosing WITH coupon entire payment of $6.95 for Auto air Manual (or $8 for Truck Repair Manual) Same return- refund privilege. ———— ————— L ма

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HOT RODS CUSTOM CARS: The New Safety Rules By Eugene Jaderquist ET year one of the best drags con- tenders in Southern California sud- denly veered off the strip halfway through its run. Spectators, officials and the car's crewmen raced toward the car to see what was wrong. Nothing looked serious. The car came to a stop without turning over. But when the driver was pulled out he was so seriously burned he later died of his injuries. Officials determined that the clutch- flywheel assembly had come apart under the force of the terrific ‘acceleration. This was a stripped-down, bare-metal job and enough parts had flown around to rip through the exposed fuel line that гап low through the cockpit. A fire had started instantly. It wasn't a big one— none of the spectators had even seen the flames—but it was enough to make the cockpit like the inside of a furnace. When a similar event occurs on the highway and perhaps a whole family is killed, everybody says that's too bad and you don't hear any more about it. No one thinks of changing state and local traffic safety ordinances; many of which fit the Model T Ford far better than they Here's an example of a roll bar legal in height but with insufficient. side braces. do present stock cars. But the hot rod- ders believe that safety rules should keep up with the machines. When an accident points out the need for new rules, they're written into the books. This is what happened after the tragic burnout described above. NHRA, and almost all other organizations which sanction or operate hot rod competition events, decreed that in the future all fuel lines must be shielded by steel; that the upper half of an exposed clutch-flywheel assembly must be similarly shielded. Similarly, when there was a fatal ac- cident at Bonneville last year, another safety rule was born. Technical exam- iners decided that the Bonneville fa- tality would not have occurred if the car's roll bar had been high enough to protect the driver's head. If you're a compact 5' 10” and the roll bar was de- signed for you, your 6’ 1" friend can- not drive the car in sanctioned competi- tion. Sometimes all it takes is a good scare. At one California drag strip last year a flywheel came apart at the frightening speed of 7,000 rpm. The driver suffered no damage, thanks to the half-shield that protected the cockpit, but the bits and pieces: of metal ricocheted downward to . the asphalt and from there sprayed the crowd. Officials still wake up screaming when they think of the damage that could have been done if the shrapnel had gone through the crowd at belly level. For this coming season all cars in drags competition must have a shield that ex- tends around the entire circumference of the flywheel-clutch assembly. The list could be stretched, not be- cause there have been a lot of rough acci- dents by those who participate in hot June, 1956

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»у rod competition—there haven’t—but þe- cause responsible agencies and groups are always willing to adopt rules that will make the sport safer. They're also willing to be tough enough to enforce their rules without fear or favor. Not even the presi- dent of the club can get by with an inade- quate firewall or worn tires. Since rules do change so quickly and so positively, anyone in competition must keep up with them. NHRA, for example, has just completed the printing of the rules for the 1956 season. All NHRA-sanctioned Strips must use NHRA safety rules in order to take advantage of the excellent low-rate insurance that goes with the sanction. Greatest changes in.the NHRA safety rules are: : 1. The requirement for the complete flywheel-clutch cover. 2. Roll bars ex- tending to the top of the driver's head rather than to the top of the cockpit. 3. Exhaust pipes must not point toward the ground, nor directly outward, but must extend back and away from the course. 4. Car must have a floor of metal or, where necessary, a metal subfloor under a plastic floor. 5. Hoods must be at least the width of the cowl, must combine with firewall to make a seal between cockpit and engine. 6. Fire extinguishers of the Pyrene type must be of at least one-gallon capacity, of the СО, type at least 212 Ibs. capacity. For the complete list of new rules, write NHRA, 5959 Hollywood Boulevard, Los Angeles 28, Calif. In the same letter you might ask for the list of classes for '56. You'll get them, all right, but you'll miss what has become the damndest controversy in hot rodding. This centers around the stock classes and includes drags competition everywhere such classes are run. The stock classes are the most popular in drags competition. For privately-owned strips they're essential to the economic well-being of the owner; for non-profit strips they're the best guarantee of good attendance. At the same time they're the focus of virtually all the cheat- ing in hot rodding. The cheating is of a particular type. From the evidence it is apparent that hot rodders consider it completely ethical to use any trick in the book to hop-up an en- gine without being caught. Any trick, that [Continued on page 25] 1956 ALLIED ELECTRONIC SUPPLY CATALOG value-packed pages Save on Everything in TV and Radio Parts & Equipment Everything for Experimenters, Builders, Amateurs, Servicemen, Engineers & Hi-Fi Specialists Send for ALLIED’S big 324-page in TV, Radio and Electronics! Select from the world's largest stocks of High Fidelity systems and components; recorders and phono equipment; TV tubes, an- tennas and accessories; Amateur P.A. systems; test instruments; latest build-your-own kits; indus- trial electronic supplies — plus everything. in electronic parts, tubes, transistors, tools and books. Save on everything in FREE 1956 ALLIED Catalog. Everything in Electronics From One Reliable Source FREE CATALOG send for i? LIED RADIO i ALLIED RADIO CORP., Dept. 6-6 i 100 М. Western Ave., Chicago 80, Ill. i { O Rush FREE 1956 ALLIED 324-Page Catalog 1 f Name . ——— асе Address. . . S M i 3 City. - Zone State. mm 109 ШЕЕ NEZ GL БЕН NUM БШ MURS Бис GENE иша ши юш When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 23 EI gcc aR ERE CU Ulf. ces МЕЧЕН T O AR P doo value-packed guide to everything _ station equipment and supplies; Electronics— send today for your. leu aiio TO MM

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The New Safety Rules [Continued from page 23] is, except boring and stroking. These are considered the cowardly way out, since they add to the displacement. Anyone caught using special carburetor jets, a special cam or a milled head is considered smart but unfortunate; anyone caught with a big bore is beneath contempt. Such fine distinctions are not made in the class rules. То the book, and the tech com- mittee, a stock car is stock, period. Special valve springs disqualify you just as fast and just as completely as extra inches. If violations of stock rules were rare, the big controversy would never have started. The fact is, however, that violations are quite common. Virtually every time a stock-class car is protested by a competitor, it is found to be non-stock. Where there are no protests, the suspicion is still strong. One fascinating sidelight of this con- troversy is that it costs more to run pre- cisely stock and run well than it does to cheat. A new cam, a set of heavier springs, a slight amount of head milling are all simple, moderately expensive modifica- tions. But when you run precisely stock the job is tremendous. You have to tear the entire engine down and bring all parts to perfect factory specifications. This isa job requiring superb workmanship and tremendous skill. The few car owners who can, and do, spend their time and money building one of these top-grade stock ma- chines are understandably bitter when a hidden hop-up eliminates them at the drags in a supposedly stock class. The most sensible solution to date is the elimination of the stock class in favor of what might be called a stock-appearing class. The cars would be classified by the ratios between their weights and the dis- placements of their engines. The only other rule would require them to look stock. No visible modifications would be permitted to either body or engine. Inside the engine the only restrictions would be against in- creasing the displacement. Whatever is decided upon this year, it will be a test year. If you happen to have the wisdom of a Solomon, you might send your own solution of the problem to NHRA. They're ready to consider any- thing. ® Check the Kind of W t! RIGHT IN THE Ù, an g COUPON BELOW: ... and I'll Prove How EASILY You Can Twice winner and holder of the titte “The World's Perfectly Most Man.” me where you want it—and I'l add IS SOLID INCHES of powerful muscle SO FAST your friends wil grow bug-eyed with wonder. ІП PROVE you сап Бе а new man in just 15 minutes а day—in your own home—or it won't cost you a penny! I myself used to be a 97-lb. weakling. Men called me “Skinny.” Girls made fun of me. THEN I dis- covered my great new muscle-building system—'"Dy- namic Tension." It turned me into such a specimen of MANHOOD that today I hold the title “THE WORLD'S MOST PERFECTLY DEVELOPED MAN." "Dynamic Tension" is the easy, NATURAL method you can practice in your own room—JUST 15 MIN- UTES A DAY—while your chest and shoulder muscles begin to swell those arms and legs of yours bulge . and your whole body starts to feel “alive, Ks full of zip and go! FRE MY 32-Page Hlustrated Book Just Miail the geuron Send NOW for my famous book ''Everlast- SNE Re ing Health and Strength." 32 pages, packed with photographs, valuable advice, answers many vital questions. This book is a real prize for any fellow. Yet I'll send you a copy abso- lutely FREE. Just glancing Mosen it may change your life! Rush coupon me per- sonally: CHARLES. ATLAS, Dept. 66, "fs East 23rd St., New York 10, N. Y. B анараа eee 1 CHARLES ATLAS, Dept. 66 1115 East 23rd St., New York 10, N. Y. § Dear Charles Atlas: Here's the Kind of Body I want: (Cheek as many as you like) Г] Mere weight—Solid—in D) Powerful Arms and Grip The Right Pla O Slimmer Waist and Hips 20 oo Chest ee Shoul- O Strong Leg Muscles 0 Better Sleep, More Energy. Кын me absolutely FREE es copy of your famous book ''Ever- i lasting Health and Sere pages, crammed. with . photo- graphs, ans to Vital. ith questions, and valuable advice. Y understand this book is EIN to keep and sending for it does Е not obligate me іп any w; a ЗАМЕ сс ie are ene Se быы ee AGE---- a (please print or write plainly) L| J ADDRESS cram tee сые Е АЕС Жө уе бузы ce сола Бы ee STATES eS Tum ma um ne um ша эм ич эт ли єз гї эд ти ши ши ER ше NO шш кї г из Ge кщ um c эя ви им кт ай > : t =e When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED а 25

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2 gc maa Beating Us Into Space? By G. Harry Stine Viking-Aerobee Operations Engineer . White Sands Proving Ground LOSE on the heels of the White House announcement concerning the United States’ unmanned satellite project, the Rus- sians came out with the announcement that - _ they would also put an “automatic cosmic laboratory” into orbit around the earth. The date given by the White House for the launching of the first American satellite was 1957. The Russians say they will have one up in 1956! Are the Russians really that far ahead of the United States in rocket research? Or are they merely bluffing to uphold their national prestige. Part of the answer is revealed by talking with ‘some of the ex-German rocket scien- tists at White Sands Proving Ground. They were first-hand witnesses to the break-up of German rocketry. In 1945 both the Russians and the . Western Allies were advancing rapidly into the collapsing Third Reich. The Germans' prime rocket center was at Peenemünde on the shores of the Baltic Sea. According to reports and the stories of the German rocket men in this country now, this center was evacuated when the Russians got close and a temporary headquarters was set up near Nordhausen in the Hartz Mountains. Nordhausen was the big underground as- sembly plant for the huge V-2 rockets and . was finally overrun by American troops. Peenemunde was taken by the Russians. But they were not the only rocket research centers in Germany; the Germans literally . had them everywhere, for there were 12 different guided missiles in the final stages of development in Nazi Germany in 1945, 26 ` back into production. although at one time the Germans were working on 48 different missiles! Nordhausen was in the territory to be stripped the Nordhausen factory, taking - anything and everything that even looked like a rocket part. A few days later the Russians moved in and took it over. The United States got about 100 V-2 rockets, most of the research scientists and engineers who had built the giant rocket and a great number of technical papers and blueprints. But the Russians got Peenemünde, Nord- hausen, nearly 200 V-2's, all the production facilities that had not been stripped, and about twice as many German rocket men as we did. Most of these men were pro- duction people rather than scientists. We brought the scientists to this country with the V-2's. They showed us how to fire them; then got to work on new missiles such as the Army's Redstone. We shot up our V-2's in upper atmosphere research and concentrated on building newer and more advanced rockets. It was almost a matter of starting from scratch since the United States had only a limited amount of technical knowledge in spite of the fact that Goddard and the ARS had originally developed nearly 90 per cent of the prin- ciples right here! The Russians learned to fire V-2's, too. And they had the production facilities and production men. In 1950 George Sutton of North American Aviation, Inc., reported that the Germans had put the V-2 rocket According to the magazine Aviation Week, the Russians had given it to the Red Army troops by 1948 . as an operational weapon. [Continued on page 29] June, 1956 occupied by the Russians, so the Allies -

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. NEW RUBBER STAMP BUSINESS PAYS BEGINNERS тє '2.20 AN HR. ART AT HOME STN SPARE TIME with Table Top Machines Themulti-miiliondollar RubberStamp business—oncecontrolled by a few big companies—is now being taken over by small opera- tors—onein each community throughout the United States. Men and Women who have this inexpensive machine can turn out huge quantities of Rubber Stamps with special wording that buyers once were forced to buy from big cities. Material costing only 27c makes a stamp that sells for $1.80. The machine that does the work is simple and easy to operate and it turns out as many as six Rubber Stamps at a time, each with different word- ing such as names, addresses, notices, stock numbers, prices and other "copy" needed by offices, factories and individuals. Work- ing full capacity, it can earn as much as $9.20 an hour for the operator! Now you can get into the big-pay business yourself, with your own home as headquarters. Y ou don't need experience. We supply everything, including completeinstructionsand eight ways to get business coming іп fast. Start making up to $9.20 an hour from the very beginning. Cash in on the profitable Rubber Stamp business in your community, right away. We'll mail full particulars FREE and no salesman will call. Be first in your locality. Rush coupon today or send your name on postcard to RUBBER STAMP DIV., Dept. R-46 1512 JARVIS AVENUE ө CHICAGO 26, ILLINOIS RESULTS GUARANTEED STRENGTHEN your voice this tested, scien- tific way. Yes—you may now be able to develop the POWER of your speaking and singing voice in the privacy of your own room. Seif-training lessons, mostly silent: no music required. Write TODAY for Eugene Feuchtinger’s fl s great booklet "How to Strengthen Your Voice." It's absolutely d FREE. You must state your age. Booklet mailed in plain wrapper. No salesman will call. Send your name and age RIGHT NOW! Prefect Voice Institute, 210 S. Clinton St., Studio FU-3, LEARN LOCKSMITHING! Learn this faseinating, profitable trade from experts in your spare time at home! Age or physical handicap 5 around, Bs income, Full or part time. cal, illustrated lessons. You can make m evon while learning! All materials and tools "WA supplied without extra charge. LOCK INSTITUTE, Dept. M-77 15 Park Avenue Rutherford, N.J. Lic. by N. J. State Board of Education Approved for Veterans Chicago 5, IN. Magazine 6-Month Trial Subscription $1 Discover how you can-enjoy every modern convenience in your own home for just pennies a day. Read the true-life stories of those who live in mobilehomes and love it. ... TRAILER TOPICS MAGAZINE 28 East Jackson Blvd., Chicago 4, Illinois Only $3.00 for 2 years. esc 52€ Room 1594 1512 Jarvis Ave., Dept. R-46 Chicago 26, Ilinois Please rush full particulars about the little machine that can get me started in the profitable Rubber Stamp busi- б ness at home in spare time. Everything you send me із FREE and no salesman will call. [| || à | МАМЕ 5 а Тат R А ü ACT NOW-Fast Growing Field Needs More Electric Appliance Technicians Electrical appliance repair otfers you good pay, SECURITY. Every wired home today averages 8 electrical ap- pliances, Up to 10 million new appliances are sold every year. Owners pay well to keep them in repair. That means a fast growing need for trained men. learn with Tester You Build Our training includes the parts to huild a multi-use appliance tester that helps you find electrical defects easily. It equips you to do profes- sional trouble-shooting; helps you Start making money soon after you enroll. Eam $3, $4, $5 Hour Spare Time Fix toasters, irons, fans, etc. for friends and neighbors in spare time. Jobs done in basement or spare room can earn you $3 to $5 an hour. Mail coupon today. шина Шош Cee эзип жып ышт оша шым MASA бит тил GERD иша ыла auem эзин ee ee П National Radio institute, Dept. CF6, Washington 9, D. C. g Please send me Electrical Appliance Training lesson and book free. (No salesman will call.) Ц i Naime:s сала зале sities азер d ae E 1555695 І Raddrus 7 v os oa pon Gage арар се 0550 i luz o e ec e Zone.... State.......... В 0 mm aem aa em em eem cem sem cum пык» vus sca mx nes mem see eo cum me] When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 227. Я * B

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(9 Conquest Of Space [Continued from page 26] - "This story is pretty well backed up Ьу. the tales told by the Germans who came to this country. A lot of their friends had been taken by the Russians and they never heard from some of them again. But a short while ago a very significant development took place: a German at White Sands— he's now a naturalized U. S. citizen—got a letter from one of his friends who had vanished back in 1945 behind the Iron Cur- tain. While the letter told nothing, the man was back in Germany again. lt was somewhat.of an indication that the Rus- sians might have picked the brains of the German rocket men and are now proceed- ing on their own! By 1953 rumors began reaching. this country saying that the Russians had made real improvements on the V-2. They were ` getting ranges of 500 miles with accuracies of plus-or-minus 2,000 feet at that range. This might seem to be a little fantastic, but the Germans actually achieved an accuracy of about plus-or-minus 2,000 feet at 230 miles range with the V-2 in early 1945. There were also stories about a super- powerful Russian rocket motor, the Model 103, supposedly capable of 460,000-pounds of thrust and burning kerosene and liquid oxygen. This may well be a development of the V-2 motor for this was the propel- lant combination the Germans would have liked. But kerosene and gasoline were not available due to the general shortage of pe- troleum products in the Third Reich. ` Recent reports state that the Russians claim to have fired single-stage rockets to 250 miles altitude. They even claim to have made mammal flights with monkeys and mice to 150 miles with successful recov- eries. There is no way of checking some of these reports. Some may be wild rumors, others exaggerated news releases. Our in- telligence agencies undoubtedly know more, but they aren’t talking. But, in spite of these stories, and in spite of the fact that the majority of the informa- tion on America’s rocket program is classi- fied, the author is extremely doubtful that the Russians are ahead of us. . . right now. One particular faction among American [Continued on page 33] When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED : 29 RAFTSMEN CASH BIG PAY CHECKS! Train Now for more success, LEARN AT HOME IN SPARE TIME (or at college in Chicago) Check the want ads in any newspaper—SEE the big- pay opportunities open to you аз a draftsman. What's more, you can learn this well-paid, prestige protession at home—quickly, easily! No special talent needed. Се complete, step-by-step Chicago Tech lessons in ie mail, spend a few pleasant hours studying each week. In a short time you'll be a well-trained draftsman, ready to take your pick of many good jobs. Act now! FREE INFORMATION — MAIL COUPON TODAY! Get FREE TRIAL LESSON plus in- formation about C.T.C. preciat train- ing. Learn what suc Chicago Tech graduates say about high pay and opportunities in drafting. No charge, or obligation. 1 G-280 Tech Bldg., 2000 So. Michigan Ave. 8 Chicago 16, Illinois 8 ë Mail me FREE lesson with facts about big opportunities mi a DRAFTING. 8 Ё @ - Маше... о.о зээ» езе» өзө зе casada Аво...... If You Can Light а Match...You Can | MAKE то 1 00075... MONTH | (МЕШТЕ FIRE ALARM ZHOWLS 1/5 MILE WARNING 7 When You Hold a Lighted Match Near It Make sensational 3-second “Lighted Match" Demon- Stration, pocket biggest earnings of your life, full time or spare time! Simple test proves new Merlite Fire : Alarm во sensitive to fire, a lighted match ''triggers'^ the unmistakable irritating “howl,” audible 4 mile away! No installation, no connection to house current (which can fail in fire); self-contained. Hang on wall like a picture, always on guard. Only $4.95, less batteries. Homes, farms, Stores,.offices, factories buy 4 to 12 at a time when you show how Merlite “smells” any fire before danger point. Make up to $2.70 on each one; up to $1,000 and more profit in a month! FRE ] Rush name, address for exciting money-making facts, l complete Illustrated Sales Kit FREE—everything you need to make money first day. If you wish Merlite Fire Alarm Dem- onstrator, complete with batteries ($3.50), send no money, we send { C.O.D. Or enclose $3.50 and we pay shipping charges. Money-back guarantee. Many localities now open—write TODAY! MERLITE INDUSTRIES (Fire Alarm Div.) 114 E. 32nd ST. ` DEPT. F-10G NEW YORK 16, N. Y. In Canada: Мора Co., Ltd., 371 Dowd St., Montreal 1, P.Q. greater security ПЯ SHS Abie

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“thd A Your advertisement can reach this mail-buying audience of more than a million readers for only 80с per word .. . payable in advance (Check ог М.О. please) . minimum 10 words. Copy to be inserted in August tssue must be in the office June 3. Mail to. MECHANIX ILLUSTRATED, 67. West 44th St., New York 36, М.Ү. o е е IMPORT-EXPORT JAPAN TRADE Guide, 1956 Edition, just out May 20th! Importers-Exporters cur- rently showing tremendous profits! Manu- facture your item in Japan. Contains óver 700 pages including latest individual Jap- anese industrial surveys, import-export regulations, shipping, patents, etc., plus comprehensive mercantile directory. Pub- lished in English by Japan's leading fi- nancial press under direct supervision of Japanese Government. Price $10.75 U.S.A. Send for free illustrated brochure and lit- erature. Japan Trade Guide (MI), Box e Terminal Annex, Los Angeles 54, alif. e e о ADVERTISING & BUSINESS SERVICES 25 CENTS, EACH name you supply us. Details, quarter. Enterprises, 439 N. Bouldin, Baltimore 24. e e е AGENTS WANTED MEN-WOMEN AGENTS: Sensational new moneymakers—Beautifully hand-painted plastic personalized photo enlargements, compacts, rings, bracelets, lockets, etc. Simply take orders, pocket 40% commis- sion—we deliver and collect. Sales outfit free. Novelco, 3343 North Avenue, Chi- cago 47. EASY HANDWORK makes fast-selling articles. Sample free. Sunmade Com- pany, Brockton 64, Mass. FREE ''$5,000-$45,000; Unlimited Vaca- tions." Work home! No merchandise, equipment! Carlsbad, alif. EARN $30 A day! Sell Dab-lt, amazing pocket-size, stick-form, ‘'no-ring'' spot remover. Works like magic! Guaranteed! Fantastic appeal, profits! Free details! M, Dept. MI-I, 842 Third Ave., New York 22. .USED AND new watches $2 up. Free list. Southern Watches, Gray, Ga. FREE! BEAUTIFUL Feather Pictures UE. Profit! Apartado 9035, Mexico |, D. F. Haylings-MI, { - Word count: Zone number free. 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Free powerhouse selling kit, low prices, protection guaranteed on repeat orders. Cash commissions. Su- perior Match Co., Dept. F-656, 7530 Greenwood, Chicago. р AD MATCHES! Sell amazing designs— 0, 20, 30, and 240-light book matches. Bigger spot cash commissions; every business a prospect. Low prices for high quality. Repeats. Start without ex- perience; men, women; full, part time. Buy nothing! Sales kit furnished. Match Corp.. Dept. MI-62, Chicago 32, 111. BIG MONEY-MAKING Opportunity. Ex- clusive line work uniforms. Jackets, pants, shirts, coveralls. Advertising em- broidered. Every business prospect. Out- fit Free. Master Div., 718 Water, Ligon- ier, Ind. WILL YOU wear new suits and topcoats without one penny cost and agree to show them to friends? You can make up to $30.00 in a day even in spare time, without canvassing. W. Z. Gibson, om Throop St., Dept. T-626, Chicago 7, M. $60 WILL EARN $10,000. Long needed in- vention. Proved sales plan. Send no money. Details free. Write Cyclo, Dept. 122, 3815 Dahlia, Denver, Colo. e o e BUSINESS OPPORTUNITIES ————MM BUY WHOLESALE! Resell at big profits. Brand name merchandise—appliances, cookware, housewares, watches, jewelry, dry goods, clothing, sporting goods, toys, gifts, etc. Free 124 page illustrated color catalog with confidential cost sheet. Merit Home Products, Dept. M-6, 107 Manhattan Ave., Brooklyn 6, N. Y. JUNE, 1956

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(оё В I б M О М E Y BUSINESS. leaning Busi E с In The Dry Cleaning Business “OF YOUR Learn At Homel Let us teach you where, when, and how to open your own shop. You'll learn all the tricks of the trade. How to promote business, how to run your shop. You'll be amazed to learn that you can be in business for next to no cash at all. Many ex- students are now in business with no investment. WRITE FOR FREE LITERATURE Don't let lack of experience or education hold you back. These lessons are simple and easy to understand. You study in SPARE TIME and may enroll on our convenient time-payment plan. Remember, dry cleaning is a necessity. If you want to go into a fast-growing, profitable year- around business... . WRITE TODAY . . . send your name and address for FREE in- formation aboui;this new, LOW-COST .COURSE. IMPERIAL SCHOOL OF DRY CLEANING 1700 Touhy Ave. Dept. S Chicago 26, Illinois Locksmithing AND KEY MAKING ‘Now. Made Easy! Practical up-to-date course teaches you how to pick locks, decode, make master keys, repair, install, service, etc. New self-instruction lessons <=“ for every handyman, homeowner, à carpenter, mechanic, service station operator, fix-it sh! hardware dealer, nsmith. 5 T RA illustrated lessons. Full Complete course $4. c price only $4. postpaid; or к O.D. plus ae only Ё розќаре. асыра or refund guaranteed. Neison-Nati Co. 210 5. Clinton $t., рер FU-3, Chicago б, 111. FY BE A BROKERV PAYS BiG! SEND FOR FREE, BIG, ILLUS- TRATED CATALOG NOW! .Graduates report making substantial incomes. Start and run your own business quickly. Men. women of all ages, learn easily. Course covers Sales, Property Management, Appraising, Loans, Mortgages, and How; related subjects. STUDY AT HOME or in class- 4 rooms in leading cities. Diploma awarded. Write TODAY for frees book! No obligation, Approved for World War II and Korean Veterans WEAVER SCHOOL OF REAL ESTATE (Est. 1936) 2020M Grand аса Капѕаѕ Сіќу, Мо. MEN WANTED “7 AUTO DIESEL with tools on real equipment. Earn while MECHANICS. you learn. Mony of our groduotes earn $100 per week and up. No previous experience necessory. Day and night courses. Approved for veterans. Write for free bulletin. NASHVILLE AUTO-DIESEL COLLEGE 226 7th Ave., N., Dept. SO Nashville 3, Tenn.

Master o trade with a future—leorn Auto- Diesel mechanics in our shops. You learn ri = e e Swiss or American Unique Sweazy System starts you making repairs right away. Develops your skill step-by-step. Teaches modern methods . . . professional short cuts. Learn by personal attendance or spare atime home study. Approved for veterans. Free Sample Lesson. No obligation. Write today! E CHICAGO SCHOOL OF WATCHMAKING $2330 Milwaukee, Dept. 666. Chicago 47, 111. AMERICA'S NEWEST OPPORTUNITY New fur-bearing ani- mal now being bred in U. S. Offers huge profits to breeders. Thís fur is next to Mink NOW in price and will soon surpass it. 15 to 20 young per year. Most easily and economically raised animal known. 112c per day to feed, ANY CLIMATE, disease re- sistant. Build yourself a sound future with this fine, registered stock. WRITE TODAY FOR FREE BOOKLET. CABANA NUTRIA, INC. $36 M West Lemon Ave., Arcadia, Calif

PHILIPPINE MAHOGANY CUAN PLYWOOD — VJAT LESS THAN WHOLESALE For Poneling Dens, Offices, etc. Use in Cabinets, 9! Fumiture, etc. Rotary cut. Both sides sanded. Bonded with finest resin adhesive. Face side unjointed. Shipped ot lowest rates, "Se (у) РКЕ E "mmm деке. : 7 ад LE zd 50 voL. A 9 VALUE РЕР SHEE. < 4. INIMUM ORDER E SHEETS REQUEST. rede re ger SAVE 40% ом TRANSLUCENT. FJBERGLAS PANELS Finest quality Fiberglas panelling. Available in most widths ond — ve lengths. Excellent ronge of colors. Write for FREE Boo ond Somple. This is on 85е а square foot value . .ONLY SQ.FT, ON моо вм 5 HP POWER SAW MEO P cursus 19% WITH А 5%" BLADE CUTS A FINISHED 2x4 LIKE A KNIFE THROUGH BUTTER - А rugged, professional type, adjustable saw. Will cut any angle from 0 to 45° Has an adjustable (0 to 6”) rip fence. Safety-trigger switch on handle. Full 12 НР Universal AC-DC. 110-120 Volt, 60 cycle motor. Weighs only 64 lbs. NEW 60-450x MICROSCOPE [| FEATURING 60,120, 150,/80,300 Амо 450 POWER MAGNIFICATION | NEWLY DEVELOPED -Self-Contained SUB-STAGE LIGHT ELIMINATES NEED FOR EXTERNAL LIGHT SOURCE E Токе odvontoge of our tromendous foreign purchase, Ideal for use by Amcteur Scientist, Student, in Home Laboratory for study of insects, plont life, etc... BO CHECK THESE FEATURES 1- Triple, revolving turret with 10X, 20X, 30X precision ground & polished lenses. 2- Two interchongeable eyeplecos, 6X ond 15X with precisien ground ond polished lenses. 3-SIX MAGNIFICATIONS for oll purposes = 60X, 120X, 150X, 180X, 300X cad 450X. &-NEW! Sub-stoge with SELF-CONTAINED LIGHT. No external light source needed. §-Large sub-stage mirror for use with extemal light sources. 6-All Metel Body — inclines through 90 degrees. T- Speciol Hardwood Cose ond 3 gloss slides. FREE! with microscore- 8 Pc. DISSECTING SET with hardwood case. IMPORTED 26" SPORT. BIKES d he 'Joguat' of Sports Bikes. Built with, pil the technical know-how of Europe's LZ finest Bicycle Craftsmen. Has o 2-tone! grey & créam boked enamel finish — plus other de-luxe features such os. . I-3-S$REEQ GEAR SHIFT with hosdlebar controls to choose gear ratio. 2 TWO-WHEEL CALIPER НАМО BRAKES. [4 3 - De-Luxe Saddle Bag. 4 - Pump ond Tools. 5 — Kickstond and Sport Tires. ` BICYCLE HÉADLIGHT GENERATOR KIT — Includes Generator, Headlight ond Toilight, 6 volts, Needs NO botter ies PEIRA Converts any Outdoor Faucet to a Deinking Fountain for your Yord or Patio, Attoches directly to your regulor faucet ond you con enjoy a cool, refreshing drink at the press of а button. DOES NOT INTERFERE with the use of your gorden hose. Mode of polished nickel-plated bronze and bross with a durable, high impact styrene pla Ed deat for CHILDREN or ADULTS. Has 22" Vonadium steel blade. Hord- wood handle. 27” overall. Complet in rugged belt sheath. - 2263 E. VERNON AVE., DEPT. А41-6б, LOS ANGELES 58, ‘CALIF. When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED Зі b.

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CLASSIFIED ADVERTISEMENTS WANTED: HOME producers, to- be sub- contractors. Cast plastic products for manufacturers in our Clearing House- Service. Thousands of easily-made items required. Cash in at home, without pre- .vious experience. Piastic Service Asso- ciates, Dept. 5-МІ, East Boston 28, Mass. "| EARN $400.00 а week." l've learned an amazing new method of printing colorful signs, banners, cards, posters, glasswear—anything. No printing press or Other expensive equipment is necessary! Big Money-Making opportunity for any- - one. Write for my secret and Revealing home-business plan—you'll be amazed! Mr. Anderson, Screen Print Company, M-6, Los Angeles 61, Calif. FIX TYPEWRITERS. Inexpensive home . course teaches Factory Secrets. Free Reine Write, Typewriter, Tarentum -3, enna YOUR OWN name brand business. No In- vestment; no inventory. Part time or full time. Sell famous brands of appli- ances, housewares, silverware, radios, vacuum cleaners, lamps, tools, clocks, : watches, jewelry, etc. etc., over 1,000 items. Join thousands of successful inde- pendent dealers, Send for Free catalog and dealer price list, H. B. Davis Corp., Dept. V; 145 W. 15 St, New York City. BREED RARE Tropical Fish At Home. Earn Big Money! Learn Secrets! Help fill huge demand. Amazing Opportunity! POE Plan. Tropicals, Los Angeles 61, ан BRONZE BABY Shoes. Instructions, Equip- ment and Mountings for genuine elec- troplating process. Free Catalog. Holly- wood Bronze Supply, Dept. B-5, 1624 East First Street, Los Angeles 33, Calif. ENVELOPES ADDRESSED accurately, rea- sonably. Fast service. We have capable addressers in your city. Glenway System, §713 Euclid, Cleveland 3, Ohio. START A Buying Sérvice, buy wholesale thousands nationally advertised prod- ucts. Make big profits selling at sizeable discounts. Postcard brings details. Ameri- can Buyers, Hertel Station, Buffalo 16-Y1 BE YOUR Own Boss. Inside information how hundreds of successful businesses started. Free booklet. Carmillo Products, Dept. MI, La Mesa, Calif. REBUILD BATTERIES; Repair Dolls; Make Rubber Stamps; Catalogue "60 Ideas" Free. Universal, Box 1076-M, Peoria, Ill. WANT TO Make Big Money At Home? $5 profit in an hour possible with Invisible Reweaving. Make tears, holes disappear from clothing, fabrics. Steady year- 'round demand from cleaners, laundries, "homes. Details Free. Fabricon, 8323-5. Prairie, Chicago 19, ill. BE YOUR own boss! No investment—No inventory — Big real profit-making wholesale REE reel у? Norris, 487-J _ Broadway, N. Y. ONLY NEW т р!ап!! We sell your products. You build luggage and —cases at home—we supply instructions— materials — tools — everything. Free de- tails, Casecraft, 807-JG sunek Los An- geles 12 FREE FOLIO 755 ,000.545,000; Unlimited - Vacations." No merchandise, ‘equip- ment. Unknown! Work home—sparetime. " Haylings, MI, Carlsbad, Calif. $5,199.90 WAS PAID to John Betts in few -weeks. Grow Mushrooms. Cellar, shed. рге, full time, year round. We pay $3.50 _ Ib. Free Book. Mushrooms, Dept. 183, 2954 Admiral Way, Seattle, Wash. 32 : - When Answering $150 WEEK—EASY! Start home Venetian Blind Laundry. Revealing book free. E R. Co., 101 S. 4th, Philadelphia 4, enna. $70 WEEKLY—HOME, spare time. Simpli- fied mail bookkeeping. Immediate in- Romsey: Auditax, 34757E, Los Angeles PROFIT! PRESTIGE! Publish own maga- zine under your name! $3. per month! Sample, details 3¢. Filmer, 910 Marion, Pharr 9, Texas. BRUSH PLATING Outfits for plating ar- ticles in the home and shop. No tanks necessary. Good income spare or fuli time. Free particulars. Gunmetal Co., Ave. A, Decatur, 111. GROW ORCHIDS at home—profitable— fascinating. Year 'round, Maine 1o California. No Greenhouse. Gorgeous Cattleyas, Cymbidiums, etc. Successful home grower shows you how. Free—fuli details. Flowerland, 4522 Wilshire, Los Angeles 5. NEWEST SPARE, Full-Time Business. $5 to $10 hour possible. Paint with Suede— the finish with touch and eye-appeal. Beautify auto dashboards, signs, radios, toys, figurines, lamps—t,00! others. Com- plete, Step-By-Step Instructions sent for no-risk examination. Free details. Coast, Los Angeles 61. LEARN SEWING Machine. Big money Repair, Sales, Service. Machines, "everything" wholesale. Taylor Service, Box 2126, San Bernardino, Calif. YOU CAN Make Money at home in spare time taking magazine renewal subscrip- tions. No capital or experience necessary. All supplies furnished. Write Today! Mc- Gregor Magazine Agency, Dept. 520B, Mount Morris, Hl. MAKE TOUGH, attractive building plas- tic, easily. Build better for less. 800% profit. Exclusive district. Bays Labora- tory, Oklahoma City 9. MAKE $3 AN Hour sharpening scissors. Details free. Flory, 3741 Rufe Snow Dr., Fort Worth 11, Texas. MAKE FLEXIBLE Molds. Cast plaques, figurines. Free sample. Tooker, 630-E Chestnut, Hamilton, Ohio. BIG PROFITS i in full.or spare time sharp- ening scissors, pinking shears, tools, etc. Let us show you how for under $50.00 investment. Experience unnecessary. Free details. Serr-Edge, Inc., 9753 Lorain Ave., Cleveland 2, Ohio. ELECTROPLATING. PROFITABLE Home Business. Autoparts, novelties, baby shoes, mirrors. Easy, inexpensive home processes. Free booklet. Tyco Metals, Box 13231-DE, Houston 19, Texas. COLORGLAZED CONCRETE pottery made without molds. Patented method. Cemetery products, novelties, tiles. Basement leaksealing. Money- making projects. Booklets, details free. Men only. National Pottery, Grand Rap- ids, Minnesota. = LIQUID RUBBER, make flexible molds. ree sample. Chaney, 1130 E. 15+һ St., Jacksonville 5, Fla. CASH FOR typing. Instructions 50c. John- ston, Box 488, Grand Central Station, New York 17, М. Y. MONEY IN New Greaseiess Doughnuts. Start in kitchen. No smoke. Seil stores. Free recipes. Irving Ray Co., 3605 South {5th Ave., Minneapolis 7, Minn. WHOLESALE CATALOG! Appliances, Cameras, Watches! Cam Company, 6805MI-20th Ave., Brooklyn 4, N. Y. Advertisements, Please Mention MECHANIX ILLUSTRATED. "HOW TO Start a Business" booklet sent Free! If you Know any Trades ao into business for yourself! Learn the 9 easy steps to follow. We've guided 5,000 others to success. Revealing Free Booklet yours for the asking! Write! National Bus- iness Consultants, Office MJE, Los An- geles 61, Calif. OPPORTUNITY TO earn $15,000-$30,000 annually. Franchise protected. Granted on $12,500 guarantee. Live at home. No merchandise јо buy. Selfemployed. One of most exclusive and noncompetitive Businesses in United States and Canada. Send for free explanatory booklet. Har- ге! & Company, Box 8-F, Louisville, НІ. TO $100.00 WEEKLY. Sparetime, home operated mailorder business. Success- ful "beginner's" plan. Everything sup- plied. Lynn, 10420-X National, geles 34. NATURAL MOLDING Rubber — Extra Thick. Free Sample. Weave Baskets— Complete Kit 50¢ Prepaid. W. Wooley, 115-М Donald, Peoria, IH. MAKE PROFITABLE Products — Cata- logue Free. International, 5347 Parnell, Mi-5, Chicago 21, IMPORT-EXPORT! OPPORTUNITY, prof- itable, world-wide, mail-order business from home, without capital; or travel abroad. Established World Trader ships instructions for no-risk examination. Ex- perience unnecessary. Free details. Mel- linger, F751, Los Angeles 24. $46 FROM SQUARE Foot Plywood; Jig- saw necessary. Details Free. Woodarts, Bridgewater, Mass: MAKE PERFUMES, Other Products. Seli Mailorder. "Carelabs,"" 1914 Chouteau- MI66,St. Louis 3, Mo. MAKE MONEY Clipping Items from Your Newspaper! Write, Newscraft, MI-983-E. Main, Columbus 5, Ohio. $100-$400 MONTHLY POSSIBLE, address- ing envelopes, postcards, from mailing lists at home. Longhand, typewriter. De- tailed Instructions only 254! X. Economy, Rowley, Mass. VENDING MACHINES—No selling re- quired. Send for Free 32-page illus- trated catalog describing our numerous coin machines; also showing you how you can earn Amazing Profits either full or spare time. Parkway Machine Corpora- ton. Dept. 3, 715 Ensor St., Baltimore 2, YOUR OWN Business—No Investment— No Inventory. Sell Name Brand nation- ally advertised items. Free Catalog. Con- fidential Wholesale Price List. Normandy ‘Dist. Co., Dept. M, 133 Fifth Ave., N. Y. I, №. Y. FRANCHISE OPPORTUNITIES nation- wide! Profitable distributorships, deal- erships, agencies. Request interesting in- formation immediately. National! Fran- chise Reports МІ-528, 333 North Michi- gan, Chicago 1. MUSHROOM SPAWN ("seed") plus ma- nureless, other, growing, marketing $1.00. Free literature. Luxurco, 64! South 19th, Newark 3, N. J. DOLLARS: BABY Record Books, Kitty Kat Shoes, My Baby Albums. Eleven thou- sand new prospects daily. Sold by mail. Use our literature. No-Co-Ro, Capitola 9, Calif. CAPITAL RAISING ` Methods. Copy- righted—"How and Where to Raise Capital." Finance your own business! Ex- pand! Free details. Advance Publishing Service, Inc., Box 1377-MF, Miami 8, Fla. Los An- | JUNE, 1956 — ©

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тар Conqu est Of Space [Continued from page 29] rocket people has a very good reason to- believe that we have not lost the race, al- though the race is probably close. They are the electronics specialists, the guidance and control people, the radar men, the in- strument men. They all know that a rocket, regardless of how good its motor is, is nearly useless unless you can guide it or have it guide itself. Anti-aircraft rockets, ICBM’s, or sound- ing rockets all must have control or they remain big skyrockets. Control and guid- ance is the single. factor which separates modern rockets from their pyrotechnic ancestors. Soviet progress in nucleonics startled the Western world at the Geneva nuclear power convention, but some experts still maintain that the Russian electronic in- dustry has a long way to go to match ours. Without electronics to guide Russian mis- siles, it is rather illogical to think that they might surge ahead. Our electronics indus- try is the result of a great deal of individual incentive and the growing knowledge that progress means better products and mar- kets for those products. Most people have no conception of the staggering assortment of advanced electronic material available -today on the open American market. It is only an indication of what is available to American rocket people in the form of equipment and components still highly classified. The real test will come in the sky. We - may not know the answer until we see a bright speck in the sky near sunset. As a rough guess, it is about a 50-50 chance right now that that speck might be carrying a Red Star on its side. ` It is time we stopped considering the conquest of space as a silly, fantastic dream. It is real It is coming. And it is now a matter of national honor and prestige. It will determine for the rest of the world whether or not we are the wonderful Yan- kee wizards we claim to be. © When answering advertisements please mention MECHANIX ILLUSTRATED Mammoth 1956 “Wholesale Tool Catalog a Pats You Ie The ceperianity Bow анон» уон own and operate your own business on a time or full time Ra ae SS RSS a Жуу 15, MOTORS, PAINTS, etc., or BUY TOOLS FOR AND Buy Rationally Aavertited Tools fer Resale or tndustrial or instituticaa! Use NO INVESTMENT AES a ot Every one needs , — E - {гше Meet the de- aye i R mands of the grow- are oat Я e ing *Do-it Yourself” 18% . Sell direct satis from the jumbo fes. huyimg guide—your cost is known only to you. WA WA Wa WB SILVO HARDWARE CO. $ Dept. МІ-6 108 Market St. g Philadelphia 6, Pa. Я | am enclosing $1.00. Rush me your dealer's mammoth Catalog Today. If Ё { am not completely satisfied with your plan, 1 g understand that 1 can return the Dealer's Catalog | for refund, and if 1 decide to order, my $1.00 will be deductible from my first order. MAME... cece cect c cece er hereto "PROS 7 ADDRESS... reus Sad rennes uoa nint аай ева а Е СЕТУ... Creer eric? ZONE...... 8ТАТЕ............... 4 ча wm WE VEA VER VA МА VEA EEE Now... Quiet ‘em Pyroil “B” added to engine oil clings to metal. Lifters won't stick and click. Pyroil fights heat, acid, corrosion. Increases mileage. : Saves. gas and repairs. Get Ругой "B" today. Save more... buy in pints, quarts, gallons. ДЕ Write for trial offer. Dept. BM1-66, PYROIL COMPANY LaCrosse, Wis., U.S.A. Toronto, Canada WORLD FAMOUS SINCE 2929 SUPER LUBRICANTS 30

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SPECIALIZED MAGAZINES give you new ideas, Examine current copies, one or all those covering your field. 5,166 differ- ent publications—all businesses, trades, professions, sports, hobbies, etc. Write today for Free List. Commercial Engrav- ing Publishing Company, 34W North Rit- ter, Indianapolis 19, Ind. . "MONEY SECRETS" Repairing Sewing Machines. Beginners lesson 20¢. Purdy's, 207-1 Weatherford, Texas. CASH FROM Sawdust (seventy meth- ods). Tin-Cans (thirty methods). News- Papers (eighteen methods). Instructions 50¢ each. All three $1.00. Charles Com- pany, 12-GXW, Norwood, Ohio. ADDRESSING AND Mailing our Adver- tising Literature can earn you $300 monthly in Sparetime! Everything Sup- plied. John R. Hall, Room 1002, 509 Fifth Avenue, New York 17, N. Y. METALIZE BABY shoes, jewelry, gifts. Free catalog. Metalite, Box 73136, Los Angeles 3. * SELL MERCHANDISE By Mail! Proven Successful Personalized !dea-Mailbox Service Assures Your Success. Everything . Furnished. Big Earnings. Associated, Box 53-M, Boston 22, Mass. -7 BOOK "505 ODD, Successful Businesses” free. Work home! Expect something Odd! Pacific-23C, Oceanside, Calif. MAIL ORDER—positive profit home busi- ness now possible. Advertising agency executive reveals success formula. Oper- ate without inventory, no-risk advertising. Details free: Impact! 2108 Payne; Dept. 3-6, Cleveland 14, Ohio. RECEIVE BEAUTIFUL Samples, Gifts, from abroad! Exporters List $1. Wey- man, D-156, 939 Vanderhoeven, San An- tonio 9, Texas. AMBITIOUS? WE establish you in your own business, supply catalogues, circu- lars etc., ship orders under your name, paid or C.O.D., show you exactly what to do. Household items needed in every home. Sell. direct, by “mail or through agents. Catalogue, plans, details abso- lutely free. Write Topval Corp., Linden- hurst 829, N. Y. > . HOW AND where to obtain Capital. үе details, Star Service, Wapakoneta, io. • o ә HELP WANTED "FOREIGN, ALASKAN, USA, Jobsll" Million Americans Employed Overseas! Opportunities Galore. Latest Сору- righted Reports. Who to Contact for Highest Paying Jobs. To $1,500.00 Monthly. Laborers—Trades—Truck Drivers —Equipment Operators—Helpers—Clerks —Engineers—Many Others. Over 52 Countries—St. Lawrence Project, Spain, Latin America, Northern Projects, Eu- rope, Pacific, etc. Year Registration— Advisory Service. Application forms. Un- conditional Money-Back Guarantee. Only $2.00. Airmailed $2.25. (COD's Ac- cepted.) Jnternational Reporter, Central Station, St. Louis, 1-ВН, Mo. THOUSANDS OPPORTUNITIES, New York! Full information, $1.00. Farrell En- terprizes, ES, Liberty, М. Ү. FOREIGN JOBS—Latin America, Alaska, Canada, up to $1,500 monthly. Up-to- date 1956 Foreign Service Directo ives complete information; hot list of firms hiring for Military and Civilian Construc- tion, Aircraft, Oil, Exporters—Importers, Mining, $1.00. How-When-Where to ap- ply. 9th successful year! Global Reports, Вох 883-МІ, Hollywood 28, Calif. 34 When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED CLASSIFIED ADVERTISEMENTS GOOD JOBS Now Available in Southern California. Send $1.00 for latest guaran- teed list. California Jobs, 601-F South Vermont, Los Angeles 5, Calif. SOUTHERN CALIFORNIA jobs and busi- ness opportunities. Complete classified section Los Angeles’ largest newspaper airmailed—$1.00. Western Information Service, P. O. Box 1287, Long Beach, Calif. JOBS PAYING to $350 weekly now availa- ble on overseas and American projects. Men and women. All trades. Transporta- tion paid. Free information. Write Trans- world, Dept. 16, 200 W. 34th St., New York, N. Y. JOBS IN Chicago and Vicinity, Sunday classified Section, $1.00. Н. Sims, 215 West Jackson Blvd., Chicago 6, Ill. WELCOME SOUTH, Brother! Columns Atlanta Jobs air mailed $1.00. Add 25е Business Opportunities. McRae, Box 3041, Decatur, Ga. : AVIATION AND Guided Missiles em- ployment (U. S. A. and Canada). Com- panies and persons to contact $1.00. Ad- visory Service. Pestech, Box 548M, St. Louis I, Mo. а NEW YORK help wanted ads. Airmailed $1.00. Stephensons, 243 Main Street, New Rochelle, N. Y. e o o MONEYMAKING : OPPORTUNITIES ——————————— START YOUR own business on credit. Your own boss. 1,598 dealers sold $5,000 to $32,000 in 1955. We supply stocks, equipment on credit. 200 home necessi- ties. Sales experience unnecessary. Pleas- ant profitable business backed by world- wide industry. Write Rawleigh's, Dept. E-U-MOM, Freeport, Ill. MANY MONEY-MAKING Opportunities in the great building industry are open to men looking for local manufacturing enterprises that can start small and grow big. Send 104 for copy of Concrete Facts which gives information on 14 different products serving building owners and contractors. Write Editor, Concrete Facts, 501 Ottawa Avenue, Holland, Mich. FREE ''$5,000-$45,000; UNLIMITED Vaca- tions." Work home—sparetime. No merchandise, equipment! 100 other home- work businesses! Haylings-Ml, Carlsbad, Calif. ENVELOPE ADDRESSING facts—extra in- come opportunities revealed thru HM service. Free details. Maxwell, Dept. 46-6, Wooster, Ohio. SELL TITANIA Gems; far more brilliant than diamonds. Catalog free. Diamon- ite, 2420-X 77th, Oakland 5, Calif. SPARETIME ADDRESSERS MAKE $25.00 — $50.00 Weekly. Details free. Glenway, 5713 Euclid, Cleveland 3, Ohio. START A Buying Service, buy wholesale thousands nationally advertised prod- ucts. Make big profits selling at sizeable discounts. Postcard brings details. Ameri- чаш Buyers, Hertel Station, Buffalo 16-71, WANT TO Make Big Money At Home? $5 profit in an hour possible with Invisi- ble Reweaving. Make tears, holes disap- pear from clothing, fabrics. Steady year ‘round demand from cleaners, laundries, homes. Details Free. Fabricon, 8347-5 Prairie, Chicago 19, IIl. $25 WEEKLY POSSIBLE, sparetime, ad- dressing envelopes at home. Temple Co., Muncie 8, Ind. DETECTIVES — EXCELLENT Opportuni- ties. Experience unnecessary. Detective. Particulars free. Write, George Wagoner, 125-J West 85th, New York 24. $150 WEEK—EASY! Start home Venetian. Blind Laundry. Revealing book free. B. R. Co., 101 S, 44th, Philadelphia 4, Penna. $5,199.90 WAS PAID to John Betts in few weeks. Grow Mushrooms. Cellar, shed. Spare, full time, year round. We pay $3.50 Ib. Free Book. Mushrooms, Dept. 184, 2954 Admiral Way, Seattle, Wash. SELL SPARETIME from free wholesale catalog. Nationally advertised watches, jewelry, appliances. Big discounts, earn huge profits. Save on personal needs. No investment. Louis Perloff, Dept. MI, 733 Walnut Street, Phila., Penna, ADVENTISING BOOK Matches—Cash іп on big. demand; sell union label matches. Cuts for all businesses and po- litical parties. Free powerhouse selling kit, low prices, protection guaranteed on repeat orders. Cash commissions. Su- perior Match Co., Dept. FX-656, 7530 Greenwood, Chicago. MAKE MONEY with your camera. Amaz- ing new low cost color enlargements can bring you hundreds of dollars in spare time. Nothing else like it! Send 10¢ for samples and eye-opening facts. Dept. MI-6A, Polypix Co., 723 S. Wells, Chi- cago 7, 111? : RAISE WORMS for profit, hobby or own use. 500 red breeders will start. $3.00 with instructions guaranteed. Putnam Ranch, Hawthorne, Fla. PRIZE CONTESTS provide Fabulous and Confidential Home Income! Here's How and Where to Win Your Share! En- close Stamp! National Contest Bulletin, Box 2685-R, Miami 16, Fla. . OPERATE RESTAURANT or diner. Free booklet reveals plan. Write Restaurant Arts, MO-35, Fremont, Ohio. MAKE $25-$50 WEEK. Home—spare time. Clipping newspaper items. Certain clippings worth $1-$5 each. Particulars free. National Plans, Box 81-Х, Knicker- bocker Station, New York. $1,000. MONTHLY POSSIBLE raising Red- worms; Large African Nightcrawlers! Backyard, Garage, Basement. Illustrated Booklet explains raising, packing, market- ing. 25¢ postpaid! Ozark Worm Farm-4, Willow Springs, Mo. VENDING MACHINES—No selling re- quired. Send for kree 32-page illus- trated catalog describing our numerous coin machines; also showing you how you can earn Amazing Profits either full or spare time. Parkway Machine ‘Corpora- pos Dept # 5, 715 Ensor St., Baltimore 2 5 HAYE HOME Mail Business! Get $ $ 10 Orders іп Every Mail—Keep $8.00. Everything Supplied. Hutchinson, Box 87-A, Dorchester 22, Mass. EARTHWORMS. PRIZED English Hybrid. Sensationally profitable! Bait! Soil! Breeders, 1,000—$10.00. Best buy, gallon (culture, worms, eggs) $5.00. Postpaid in- structions $1.00, Dealers write. Horton's Hatchery, 9492 South Linden Rd., Swartz Creek, Mich. FREE BOOK "505 Odd, Successful Busi- nesses." Work home! Expect something Odd! Pacific-22C, Oceanside, Calif. WANT TO go in business for yourself without capital? We show ‘you how. Start part time your own home. Postcard brings catalogue, instructions, etc., ab- solutely free. Topval Corp., Lindenhurst 830, N. Y. JUNE, 1956 B Ni

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Dear Editor [Continued from page 21] | ple have remarked that atomic power should be used in airships but your proposal is spe- _ cific, concrete and sensible. Allow me to con- gratulate you on the idea of the year. Lewis Grant, Jr. Chicago, Ill. Thanks, Lou. Q Homemade Cement Mixer I would like to thank MI for publishing the Concrete Mixer article by Arthur W. Robin- son in the Jan. '56 issue. The machine is everything the author said it was. You will find a photo of the mixer enclosed. Thanks again for the best in a mechanical magazine. ; G. D. Bryant Whitesburg, Ga. Nice job, Mr. Bryant. Hope you enjoy your Golden Hammer tie clip. © Typewriter Info Requested I have in my possession an old Oliver (Number 9) typewriter. I am interested in any information you can give me concerning the company who made it, value and manu- facturing dates. Maybe some typewriter collector will want it. . Billy Moore Box 12 Okolona, Miss. Anybody interested? [Continued on page 37] When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED

Ф Ф UE 3 ES 9 LIS кзз — 2 PH P кы BPERCR p fsi iiz до z Н айыз SE23iiiiillr # dX Qe a23 або: с i = e hReAaLSvOSZ6 [24 ЕЕС t o 44«amnaoo 2 о CRSSORO $ SODDODDODODOO0

ARN METALCRAFT and JEWELRY MAKING Low Cost Home Training Now Available Make money. Learn profitable skills and arts of decorative metal and jewelry crafts. Course is - complete. Professionally prepared, Easy to mas-_ QS TS тег. Special tocls and materials furnished, it a Write for INTERSTATE TRAINING SERVICE Free Booklet DEPT. K-4 PORTLAND.13, OREGON 10-Shot Pellet Gun Shoots 10 pellets as fast as you pull - trigger. For indoor t work & fun. Automatic action. Holds 10 pellets. Full size model of Colt 45. 614-in. long. Plastic moulded. Moving ра of die cast metal. With supply of pellets. (Ex- tra Pellets, 25c Pkg. Holster 50c) Set__-._--_- Johnson Smith & Company, Dept. 311, Detroit 7, Mich. New Catalog of 3200 Novelties 10c 3200 novelties, jokes, tricks, magic, gadgets, fun-makers, hobbies, timesavers, jewelry, radios, home-craft, Photo items, etc. Catalog 10c. Johnson Smith & Company, Dept. 311, Detroit 7, Mich. DRAFTING is E the way toBég Income V? OPPORTUNITIES ! Lesrn at home in your spare time. Become a professional Draftsman. Enjoy good pay, re- spected position in an ever growing field. CHRISTY TRAINING is easy and clear. You learn by making actual drawings, plan- ning production, see.things develop. You learn ER interesting, easy-to-remember way by doing. 3 PAY AS YOU LEARN PLAN CTS will send you 50 illustrated drafting “manuals, set of professional drafting instru- ments, equipment snd supplies plus a portable drafting table . . . everything you need! Send деше for FREE BOOK and PAY LATER

CHRISTY TRADES SCHOOL, 4804 N. Kedzie, Dept. DB-5002, Chicago 25. 35 э

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"а BIG PROFITS. Setling ties ($2.60 value) $6.50 dozen. Free catalog. Empire Cra- vats, 611M Broadway, New York 12. ° » ө PROFITABLE OCCUPATIONS HOW TO Fix Watches Overnight with self-taught "Do 1+ Yourself Method” 70 drawings, instructions, 65 troubles, wholesalers listed, 15+ publication. Un- conditional Refund 7 days. Manual $1.50 postpaid. Web Service, Box 2489, Denver ‚ Coto. START MAIL order business in your own home. We supply catalogues, circulars, etc., ship orders under your name (no stock fo carry) and show you exactly what to do. Postcard brings complete details, instructions, catalogue, etc., ab- solutely free. Topval Corp., Lindenhurst DETECTIVES—MAKE Secret investiga- tions. interesting occupation. Write, George Wagoner, 125-J West 85th, New York 24. FREE ''$5,000-$45,000; Unlimited Vaca- tions." Work home! No merchandise, гаш рөн. Haylings-MID, Carlsbad, atif. WHOLESALE CATALOG! 30-80% Dis- counts! Appliances, musical insłru- ments, typewriters, phonographs, watches, jewelry, recorders, housewares, etc. Con- solidated Distributors, 21-44 Lafayette, Paterson 15, N. J. Ls PROTECT YOUR Health. Rid your Home- Office of Flying, Crawling Insects. Also Airborne germs. New Scientific method. Free Details. Monetta's, 3007 Middletown Road, Bronx 6l, New York. WHOLESALE CATALOG! Appliances, cameras, waiches. Postcard: Selbyco, Decatur 233, Hi s e о CHEMICALS & SUPPLIES CHEMICALS, SUPPLIES. Catalog 254, re- fundable. Laboratory Sales, Box 161-G, Brighton, Mass. e ə о FORMULAS, PLANS LATEST—BEST Formulas. Genuine Money- makers. Free literature. Kemistry, Park Ridge 40, 111. ONE FORMULA $5.00. List with first or- der. Milici-M!-Whitehead Chemists. Box 434, Ruskin, Fla. BUY WHOLESALE thousands nationally advertised products at big discount. Free "Wholesale Plan.” American pavers, Hertel Station, Buffalo 16-XI, N. $5,000 FROM HALF Acre growing Gin- seng, crop bought. Particulars 10с. As- sociated Growars, Sperling, Manitoba. ' $150 WEEK—EASY! Start home Venetian Blind Faundry. Revealing book free. р. К. Co., 101 S. 44th, Philadelphia 4, enna. $5,199.90 WAS PAID to John Betts in few weeks. Grow Mushrooms. Cellar, shed. Spare, full time, year round. We pay $3.50 Ib. Free Book. Mushrooms, Dept. 102, 2954 Admiral Way, Seattle, Wash. OPERATE PROFITABLE Mail Order Busi- ness! Splendid Opportunity. For details write: Thomas Bond, 1637E West Vernon, Phoenix, Ariz. MAKE NEW greaseless doughnuts in kitchen. Sell stores. Free recipes. рун Ray, 3505 South 15th, Minneapolis E Pay. South America, the Islands, USA, foreign countries. All trades. Clerical, labor, engineers, drivers, others. Women also. Fare paid. Applica- ‘tion forms. For information. Write Sec- tion 92K, National Employment Informa- tion, 1020 Broad, Newark, N. J. WANTED MEN, Women. Home Pro- ducers, Figurines, Book Ends, other Novelties. No expensive molds needed. Particulars. Plastex, 114 Water, Mount Holly, N. J. “MUSHROOMS GROWN, boxes. Manure- less process. Spawn $1.00. Gordin, 553 William, Winnipeg, Manitoba. BOOK "505 ODD, Successful Businesses” free! Work homel Pacific-24C, Ocean- side, Calif. e e o BARGAINS ‘DISCOUNTS 20% TO 50%—Cameras, projectors, tape recorders, lenses. Write for individual quotations, no cata- logs. Classified Camera G, 2375 East 65 St., Brooklyn 34, N. Y. 18 GOOD, INTERESTING Novelties: mag- netic top, parachute, compass, eic. $1.00 complete. Pacific-New England Corp., Box 1152, Studio City, Calif. 36 - When Answering REAL MANUFACTURING Formulas. Lists free. W. Cummings, 228 Gordon, Syra- cuse 4, N. Y. ANY FORMULA $3.00. Catalog—Mfg. Treatise 10c. J. Belfort, 192 N. Clark, Chicago і. » e о GEIGER COUNTERS, - TREASURE FINDERS URANIUM FINDING made easy! Com- pletely transistorized Geiger counters. Extra sensitive. Lightweight. Scientifi- cally engineered. Unconditionally guar- anteed. Also complete line prospecting instruments from $19.95. Write for free i techniques. Atomics Corp., Dept. M14, 19 East 48th Street, New York City. SCINTILLATION COUNTER with built-in speaker, loudspeaker alarm. Metal Lo- cator works over salt water. No ground pick-up. Geiger Counters. Free Litera- ture. Gardiner Electronics, 2545` Е. Indian School Rd., Phoenix, Ariz. TREASURE—METAL-MINERAL Detectors. M-Scope. Used worldwide for Treasure Hunting. Mineralights, Geiger, Scintilla- tion Counters. Prices from $14.75. Fully Guaranteed. Use our Time Payment Plan. Free booklets on Treasure Hunting, Ura- nium Prospecting. Free Catalog. Fisher Research Lab., Inc., Dept.: МІ-1, Palo GOLD AND Silver Detectors, Geiger Counters for Uranium. Vita-Lites. Pow- erful—Sensitive—Guaranteed! Free іпѓог- mation. Detectron Corp., 5528 Vineland Avenue, North Hollywood, Calif. e о o OF INTEREST TO WOMEN A DRESS Shop іп Your Home. No Invest- ment. Good commissions selling better dresses. Write Modern Manner Clothes, Hanover XW, Penna. 20 SECRET WINE Recipes Easily Made eum Rosa, 387 E. 155 St., New York ity. » o o PRINTING, MULTIGRAPHING, MIMEOGRAPHING QUICK SERVICE Printing. Letterheads, envelopes, cards, labels. Free circular. Harold Kroll, Seymour, Wisc. Advertisements, Please Mention MECHANIX ILLUSTRATED | [CLASSIFIED ADVERTISEMENTS BUSINESS PRINTING. Reasonable. Cata- Free. Howprint, 723-L Eunice, Web- ster Groves 19, Mo. QUALITY PRINTING—Lowest Prices— ' Samples free. Wilcox, 5455 Gilmore, St. Louis 20, Mo. RUSH SERVICE 100 8i/oxil Letterheads $2.00 postpaid. Bass Press, Knox, Ind. » о © PRINTING OUTFITS |o & SUPPLIES DO YOUR Own Printing. Save money. Simple rules. We ‘supply everything. Print for others; good profit. Raised printing like engraving, too. Have home shop. Details free. Kelsey Presses, V-57 Meriden, Conn. MAKE YOUR Own .self-molding rubber stamps and printing cuts. Plexirubber, Argyle 3, Wisc. PRINTING PRESSES, type, supplies. Lists 3c. Turnbaugh Service, Mounted Route, Mechanicsburg, Pa. RUBBER STAMPS, quick professional service, catalogue. Hawthorne Co., Ot- sego, Mich. xr ə e e RUBBER STAMPS & MARKING DEVICES 3 LINES—$1.00. FAST, professional serv- ice guaranteed! Artcraft, P. О. Box 8038, West Palm Beach 6, Fla. RUBBER STAMPS: First line 65; addi- tional lines 356. Kuhn Stamps, Victoria, Kans. e e e STAMP COLLECTING KOREA FLOWERS, Formosa Chiang Kai- shek birthday issue, Hungary pictorials, Ceylon (elephant) Royal Visit, South Africa Cape of Good Ho ope triangle Cen- tennial, Italian Colony flowers. Niue bi- color maps, African wild animal set. Many more beauties. All for 25¢ with in- teresting approvals. Every continent rep- resented іп this collection. Modern Stamp Co., Dept. C-3, Ferrysburg, Mich. 225 STAMPS FOR Only 10с! This mam- moth value includes Airmails, Picto- rials; stamps from strange Countries cataloguing up to 25c each! Also ap- provals. Mystic Stamp Company, Cam- den 30, N. Y. TWO $5.00 U. S. stamps plus 20 different {0c with U. s. approvals. Irwin Stamp Co., Box 1118, Brooklyn 30, N. Y. 59 U. S. COMMEMORATIVES 25c. Mam- moth Packet List Free; Econopackets, Box 168, Riverside 31, Calif. ПІ TRIANGLES. DIAMONDS. Rectan- gles. Nudes—Warthog—Death Stamp. Bargain Approvals—Catalogs, 25¢. Im- реті. 2545MI Fourth, San Diego 3, alif. 513 DIFFERENT WORLDWIDE from Cunha, Sudan, Libya, etc., cataloging over $!0 only 35e. Approvals Littleton Stamp Co., Littleton, Q4, N. H. “WOW! 135 ALL Different Germany 106" Zeppelins, Semi-Postals, Airmails, High Values. Big bargain lists and approvals included. Jamestown Stamp, Dept. АБМІС, Jamestown, N. Y. NUDES SET: colorful approvals—i0c! Atlas, 2830-N Eisenhower, Racine, Wisc. UNITED STATES commemorative collec- Нол containing 33 different 104 ap- provals. White, 516-M Avenue L, Brook- lyn 30, N. Y. JUNE, 1956 X

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" Dear Editor [Continued from page 35] @ Invention Wanted! Invented In your October Inventions Wanted! col- umn you spoke of filtered exhausts to do away with the threat of carbon monoxide poisoning. You'll see this sooner than you think. Tests are now being made with a new type of ex- haust (muffler) with porcelain rods coated with a catalyst that would turn the carbon monoxide into harmless carbon dioxide. Michael Gelles Brooklyn, N. Y. @ Sun Power I really enjoyed Frank Tinsley’s article Flight To The Stars On Sun Power in the Jan. ’56 issue of MI. But I’m a little confused about the power source of the ship. When, and if, the reflectors of the solar ines are not facing the sun, how does the ship get its needed power? Mickey Owen Tacoma, Wash. The parabolic reflectors are mounted in such a way that they can always be turned toward the sun. THE BOOK DOESN'T SAY WHAT To DO Now! Superior's New Model 70 UTILITY TESTER FOR REPAIRING ALL ELECTRICAL APPLIANCES MOTORS - AUTOMOBILES - TV TUBES As an чес trouble shooter the Model 70: > Measures А.С. and D.C. Voltages, А.С. ond. Р.С. Current, Resistances, leakoge, etc. > Will measure current consumption while the опасва та Mie лла resem ance range which will measure oll resistances commonly used in electrical opplionces, motors, etc. 9 Leakage detecting circuit will indicate continu- ity from zero ohms to 5 megohms (5,000,000 € Will test toosters, trons, Broilers, Heating Pads, Clocks, Fans, Vacuum Cleaners, Re- frigerators, Lamps, Fluorescents. Fans, Switches, Thermostats, ete. © Will test all TV tubes for open flo- ments, inter-element shorts, burned, © M. Steir out ovt tubes, ete As an Automotive Tester the Moc Model ; 70 will tesi: € Both 6 Volt and 12 Volt Storage © Generators 9 Starters 9 Distributors 9 Ignition Coils ә Reguictors 9 Relays 9 Circuit Breakers ө Cigorette Lighters © Stop lights 9 Condensers 9 Directional Signo! Systems ө All Lamps ond Bulbs 9 Fuses 9 Hesting Systems © Horns 9 Also will locate poor grounds, breaks in wiring, poor connections, etc. Handsome round-cornered molded bakelite cose, 31/2 x5 x20 x 24A". Complete ikon indies Stage Sek ring дЕн SHIPPED ON APPROVAL NO MONEY WITH ORDER — NO С 0. D. ‘Try it for 10 days botore you тае IIIS кЫЫ buy. Ш completely catisfies Å MOSS ELECTRONIC DIST. CO. then send $3.85 and psy ] Dept, rmn Tenth Aro., Hew York 34, В. Y. bolance at rate of $4.00 per ease газп 1 Model 70. I agree p per $2.85 25 within 10 days month for З monthy/— но p “fter receipt and $4.00 per month thereat Interest or Finance Charges 1 Name, Added. И not completely Address, Satisfied, return) to us, no explanation necessary. OU ere wo ВИЛ С. сн GET MAXIMUM USE OF 4-WHEEL DRIVES! MAKE 2 VEHICLES OUT OF 1! Your 4 w. d. is a 4 w. d. work horse or 2 w. d. "pick- up" as you need it—es yox shift! No drag, gear whine, shimmy in 2 w. d.; big savings in gas, tires, repairs. For all 4 м, ds. to 1Y4 tons at dealers or write: LOCK-O-MATIC! 9 Automatic free- wheeling 2 w. d. © Automat 4w.d. $ forward & reverse | ш 9 Locking control WARN MANUFACTURING CO. for "solid" 4 w. d. Riverton Вох 6064-C6 Seattle 88, Wash. BECOME AN EXPERT IN TRAFFIC ana TRANSPORTATION _ TODAY qualified men in this field earn $4,000 to - * $10,000 and up. Thousands are needed. We train you іп spare time at home for executive positions in Traffic Management. е Papae: s complete Traífic and Transportation m gives you a thorough knowledge of this field. Program covers Transportation Agencies—How to Ship by Rail, Express, Water, MOTOR TRUCK, Air, Freight Forwarder and Mail Carriers. Investigate the splendid opportunities available. Low cost-easy terms. Placement counsel and help. Write today for FREE 48-page book ' "Traffic and Transportation —the Fast Growing Profession.” LASALLE EXTENSION UNIVERSITY 417 S. Dearborn St., Dept. 6493T, Chicago 5, Hiinois -

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Wr RST p WORLD'S LARGEST stamp (7//zxl4 inches). A real curiosity! Retails for 50c, only 3c to approval applicants. Tatham Stamp Co., Springfield 9, Mass. CANADA—NEWFOUNDLAND collection including early issues, commemoratives, pictorials and high values. Plus set of fascinating triangle stamps. Plus set of unused British Colonies. Plus large stamp book. All four offers free. Send 10с to cover postage. Empire Stamp Corp., "Dept. MI, Toronto, Can. WEIRD DIAMOND Shape Coffee Stamp. Lovely Athlete Triangle, plus first American Commemorative. Icy far off Greenland, Idol Dancer, etc. Everything only 5с with approvals. Capital Stamps, Little Rock 5, Ark. ^ FREE! CATALOG! About stamps. Illus- trated. Free! The Stampmart, Hartford I, Conn. E: HOW MANY of your album pages would a few stamps complete? Want to fill : them? Try our approval books of 1,000 at i¢ and 26. Values will amaze you. Also U. S. Roseland Stamps, Dept. C-36, Spring Lake, Mich. PICTORIAL PACKET from Antigua, Bar- bados, British Guiana, British Hon- duras, Burma, Curacao, Leewards, Rho- desia, Trinidad, Tobago, and many other hard to get countries. Bi-colors, topicals. Tremendous value. Each stamp a beauty. 104 with inexpensive, attractive ap- provals. Wolverine Stamps, Dept. C-27, Fruitport, Mich. j 25 UNUSED. CHINA, l0¢ with approvals. Kenny, Box 2142, Pittsburgh 30, Penna. SELECT STAMPS on approvals. U. S. and foreign. Kingsbury, Fairfax I, Vt. 70 DIFFERENT U. S., including 35 Com- memoratives 256. Seidenberg, Apple- ion, Wisc. 100 OLD U. S. stamps between 1861 and 1935 only $1.00. Roush Stamps, 5! Chest- nut, Mansfield, Ohio. ECONOMICAL '^-I-2c APPROVALS, over 22,000 varieties available. Dresel, . Box 270-B, New York 25, N. Y.. OLD SCARCE U. S. Seconds On Ap- proval. Slight imperfections, lowest prices. Hernfelder, Clintonhill Sta., New- ark 8, N. J. 8 CANAL ZONE 104. Approvals. Merkel Stamps, 45 Cherry, Holyoke, Mass. 25 PHILIPPINES 10с. WORLDWIDE Ap- Ern: Moffat, 740-B Milton, Rock ill, S. C. ` 30 DIFFERENT COMMEMORATIVES. 1893 up l0¢. U. S. Approvals. K & B, Box 70, Brooklyn 23, N. Y. . TEN TRIANGLES and 50 other stamps 106 " with approvals. Bennett, Candor 6, ROOSEVELT GREECE, Pope Triangle, Greenland, !srael, 51 others, 5c. Ap- prevals- Longhorn, Box 3058C, Lubbock, exas. TRAVEL THRU 50 countries! A virtual world cruise! 50 stamps, each from a . different country, Abyssinia to Zanzibar. Bargain umsurpassed! То new approval applicants, 5¢. Avalon Stamp Co., Dept. K, Springfield, Mass. FIRST U. N. Set. Among World's Pret- tiest. Only 104. Approvals. Welles, Box 1246-L, NYC 8. FREE: MINT British Colonies from Brunei, Papua, New Guinea, Caymans, Gilbert Ellice, Seychelles, Sarawak, Grenada. Free Wiik approvals. Viking, Great Neck - 38 When Answering 300 DIFF. WORLD Wide 25c Plus surprise packet. Mammoth Packet list free. Econopackets, Box 168, Riverside 31, Calif. AMERICAN STAMPS! Coins! Extensively! Sullivan, 127-С East 4th, St. Paul 1, Minn. DEALERS' LISTS. Wholesale Approvals. 104. Bryan, 2545MI Fourth, San Diego 3, Calif. 2 FREE! GIANT catalog. Offering thou- sands of bargains. Sent with beautiful approvals. Jamestown Stamp Co., Depi. ESMIC, Jamestown, М. Y. 1956 U. S.72 PAGE catalog free. Stone, 192 Washington, Boston 8M, Mass. e e o RARE COINS SAN FRANCISCO Mint Closed! Made only cents and dimes in 1955. In short supply and great demand. One each, brilliant uncirculated, for 25¢. Free coin lists with order. Bryson Coin Company, 612 White, Toledo 5, Ohio. FIVE FOREIGN coins from Switzerland, Belgian East Africa, etc., plus foreign banknote, only 106 with coin approvals. Littleton Coin Company, Littleton R4, FREE! FOREIGN Coin, banknote and Coin Collectors Illustrated Catalog to approval service applicants. Send 3c postage. Tatham Coinco, Springfield 9, Mass. MORGAN. DOLLARS; 1885-86 - 89-90-91 $2.00 ea. Uncirculated. Illustrated Cat- alogue, 25c. Shultz, Salt Lake 10, Utah. 16 PAGE U. S. coin list 104. Stoney, 192 Washington, Boston 8M, Mass. * e е OLD COINS WANTED $3,000.00 FOR 1913 LIBERTY Head Nickel. Dimes 1894-5, 1895-O, 1916-D. Quarters 1827, 1896-S, 1901-S, 1913-S, 1923-S, we pay $5.00 to $1,500.00. Certain dates—Lincoln Cents, $60.00. Indianheads, $50.00. Large dimes, $500.00. Shield Nickels, $100.00. Old Dimes, $300.00. 1875 Canadian Quar- ter, $50.00. Hundreds of others worth fore sending coins. Catalogue money re- fundable. Worthycoin Corporation, Leaders Numismatic Quotations, K-118-C, Boston 8, Mass. _ e e o INDIAN CURIOS, RELICS, ANTIQUES SPECIAL OFFER. 8 perfect arrowheads $1.00. U. S. only. Arrowhead Sales, 4588 So. Acoma, Englewood, Colo. '| B. [CLASSIFIED ADVERTISEMENTS WANTED: MORE new writers for TV- radio, magazines, business and social. publications. Learn at home for extra in- come or exciting full time career. Many students earn while learning. Professional instruction. Send today for free book of opportunities and free typical lesson. Palmer Institute of Authorship, Desk YM-66, 1680 N. Sycamore, Hollywood 28, Calif. HIGH SCHOOL Diploma At Home. Li- censed teachers—approved materials. Southern States Academy, Box 144-LX, Station E, Atlanta, Ga. BE A Real Estate Broker. Study at home. Write for Free book today. Gl Ap- proved. Weaver School of Real Estate, 20188 Grand, Kansas City, Mo. USED CORRESPONDENCE: Courses and Books sold and rented. Money back guarantee. Catalog Free. (Courses bought.) Lee Mountain, Pisgah, Ala. WANT A Diesel job? New opportunities to increase income. Higher pay. More money. We can help you qualify. Tools. Shop method home training. Write to- day! Diesel Tractor, Heavy Equipment Division, Interstate Training Service, Dept. B-4, Portland 13, Ore. BOOKKEEPERS! INCREASE your earnings! Operate your own simplified ''Dollar- A-Week" Bookkeeping and Tax Service. Full or spare time. Details Free. No obli- gation. Ellis, Box 202, Cedar Grove, N. C. HIGH SCHOOL—No classes. Study at home. Spare time. Diploma awarded. Write for Free catalog HAJ-57. Wayne School, 2527 Sheffield, Chicago 14, Ill. PHYSICAL THERAPY And Massage. We train you at home. Earn big profits from our own private practice or work with Геры: and doctors. Free catalog. Na- tional Institute, Desk 2, 159 East Ontario, Chicago 11. LEARN MINERALOGY at home. Diploma course. Fortunes now being made in uranium and other minerals. Free cata- log. Mineral Science Institute, Desk 17, 159 East Ontario, Chicago 11. ELECTRIC WIRING, Home study, free catalog. Master Electrician Institute, Box 244, Fitchburg, Mass. "8 MISTAKES PARENTS Make." Every ` parent should have this new book about child training. It is free; no obligation. Simply address Parents Association, Dept. 945, Pleasant Hill, Okio. EARN DEGREE. Free Bulletin. Home- study only. Midwestern Bible School, 517 Merchants Bank Bldg., Indianapolis. PIANO TUNING pays. Big money in spare . time. Learn af home in 30 days. No musical knowledge necessary. | Phono- graph, records, tools and instructions fur- nished. Free catalog. Capital Tuning School, 16 Southwest Second, Fort Laud- erdale, Fla. & ARROWHEADS $1.00. GUARANTEED Perfect. Navajo Shop, 687 So. Patton Court, Westwood, Colo. Е e e e HOBBIES & COLLECTIONS GROW GIANT crystals! Send dime for booklet explaining hobby. Crystocraft Co., College Station, Texas. e e e EDUCATION & INSTRUCTION COMPLETE YOUR high school at home in spare time with 59-year-old school. Texts furnished. No classes. Diploma. in- formation booklet free. American School, Dept.:XA28, Drexel at 58th, Chicago 37, ш. - Advertisements, Please Mention MECHANIX ILLUSTRATED Be: WANT STRONG, masculine voice? Send for Free booklet. Prefect Voice Insti- tute, 210 South Clinton, Studio 2FU-3, Chicago 6. ENGINEERING DEGREES earned by home study. American College of Engi- neering (University of the West), Box 27724 (1), Hollywood 27, Calif. TATTOOING SUPPLIES, licensed course, - illustrated brochures 256. Zeis, 728 Les- lie, Rockford, 111. e e о BOOKS, PERIODICALS BOOKHUNTERS! ALL Subjects. Send Wants! Jaher Book Service 183-М Hazelwood Drive, Westbury, N. Y. JUNE, 1956 ү ds

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Invention Clinic [Continued from page 17] Fire Alarm George H. Muffley of Akron, Ohio, has ap- plied for a patent on a fire alarm which pro- duces an explosive sound to warn people in ‘the house when a fire breaks out. He wants to know what we think of it and whether it would set the alarm market on fire. Answer: Although we completely favor any device which will reduce the danger to persons from fires starting in the home, we are not too much impressed with this device. You will have a problem shipping the explo- sive charges. Replacement units not within the alarm device will need to be stored and are of themselves dangerous. But the point of greatest objection is that the flame must actually reach the alarm before the thing will respond. This méans that the alarm devices will have to be scattered about the premises in great numbers and be positioned in spots where fires are most likely to start. This makes expensive the price for complete pro- tection. It also places the explosive charge in spots where they could harm individuals, or at least scatter burning materials. The best type of alarm is one which will sound when temperatures get to around 140° or 160°F. This is still below flame temperature. Auto- matic dousing with water or chemical spray, together with an alarm is more effective than ` an explosive sound, in our opinion. Aeetylene Generator Robert Seid, Auburn, Neb., sends a diagram for an acetylene gas generator for production -of the gas from calcium carbide and its use in, a jet engine. Would it generate on the open market? Answer: There is nothing new here what- ever. Your gas generator is not even as good as the old style acetylene gas generators which were found on many old store and farm lighting systems before electricity took over. Some of these installations still are in use. Nor do you show or explain any new applica- tion of the gas to a jet engine. Acetylene is not the most efficient of known fuels. Power per pound of fuel, either gas or solid, is a very important consideration. In your design you are always transporting useless slush which fills a tank at the end of the run. Forget it. ® When answering advertisements please mention MECHANIX ILLUSTRATED -DIESEL-AUTO MECHANICS NEEDED BIG PAY...GO0D FUTURE If you have no trade or profession if SN that assures you steady employ- ment and top pay through good times or bad, regardless of whether you want to be a mechanic, tech- nician, salesmán, executive—or have [онг own profitable shop—you should investigate NOW this oppor- tunity to enter world-famous Bailey Diesel Schools. Prepare yourself, this proven way, for an important pace in the vast and ever growin: сем Diesel, with ТОР PAY... ASSURE. Why Gamble With Your Future! Your future success depends largely on the repu- tation of the school you attend. Don’t take chances! Train at Bailey—America’s foremost school of Diesel Training ... approved for veterans and non-veterans. We help you find part time jobs while in school. Employment after gradua- tion. Return coupon helow TODAY for FREE CATALOG that takes you on an amazing Camera Tour of Bailey Class Rooms and Shops. ACT NOW — MAIL TODAY! Name. Address. Town. BAILEY TECH. SCHOOLS me^” ET “.1652-So. Grand В!уа.,‚ St, Louis 4, Мо. BIG LABORATORY GIVEN FREE! Be a CHEMIST! One of the really GREAT professions! We teach you at home. Simplified (but thorough) course; no previous training required. Earn while you learn. This is a GOLDEN AQE for those. with special knowledge! Diploma awarded! Send 25c for first lesson and KIT or 81.00 for first 5 lessons and supplies including URANIUM TESTER, CET PUZZLE (worth $2.50 d HOW TO MAKE 100 NEW "СНЕМІ- CALS! S NATIONAL SCHOOL OF CHEMISTRY Р. О. Box Redwood en Calit. WHY PAY 22 YEARS AT THIS ADDRESS — АМ ESTABLISHED POLICY OF CARE- 1 er EN ASSURES YOU MANY MORE a HA MILES. BE WISE—TRY ОМЕ— = Youn BUY MORE!” WE WELCOME OUR QUALITY & PRICE! PARTIALLY USED TIRES—AND OTHERS 00: ALL WHITE WALLS $1 ТАБЕ uu 10% DISCOUNT WE С т UT MONEY IN YOUR РОСК el » T Баи C; ON: EVERY гази MAY TAKE 10% off Tire 30 Mos. written guar: | Be ion guaran’ B 16 $5.16 75x19. "Ss. 36/700x iX.) $ 9. 42е] 700х20 512.36 600x16(8) 6.56 1640х15 -t ҢЕР 11.68! 750х20(8) 14.56 16 5. 5616 х15 5.2 9.76| 750x20(10) 16.76 650х16(6) 7. peace 5. 36 20017 13.06| 825x20 19.96 16 6.16|760х15 5.86/750x15 10.76| 900x20 19.76 750x16(6) 8.36 800x15 6.26| 30x: 10.26/1000x20 19.76 18 4.66| x15 6.26|600х20 10.66)1100x20 - 20.96 550х17 4.66 FE x с EA б5охао 11.6611000х22 21.46 650x15 3 068 5.16| 32x6(8) 11.76/11 21.76 700x15 5.26! Sooniste э: 56 32x6(10) 12.66 2x00 26 23.96 1! 750x20....12.5 .S.A. AM tires shipped eck or M.O. with this ad. Dept. 6. No C.O.D. hi STANDARD, 834 North Broad $t, Philadelphia 30, Pa. When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 39 GARNEER COMPETITION. NO ONE CAN TOUCH YT

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рү RARE MAGAZINES, catalog 106. Nation- wide Magazine Exchange, Box 1375-M, San Antonio 6, Texas. OLD, NEW, Rare Books Located. Send wants to Old South Book Service, 24A St. Botolph St., Boston 16, Mass. ——— + e o RADIO, TELEVISION SUPPLIES & INSTRUCTION oA BUILD 16 RADIO Circuits at home, оп! $19.95 complete. Free Dynamic Radio Electronics Tester, Set of Tools, Soldering Iron. No experience or additional parts required. А practical Home Radio & Electronics Course. Unconditional Money- Back Guarantee. Order direct or send for descriptive literature. Free valuable Ra- dio, TV & Hi-Fi Repair Manuals on re- quest. Progressive "Edu-Kits" inc., 497 Union Ave., Room 40Р, Brooklyn 11, N. Y. PROFESSIONAL TY Analysis. Enables you to repair and save $$$. Detailed infor- mation useful for life of set. Send Make, Model, Chassis numbers and $2.00. Gen- eral Specialties, Box 145, North Chicago NEW T. V. Tunner—Automatic, remote control of your T. V. picture from any- where in the room. Easily installed your- self. Fits all T. V. sets. Guaranteed. $24.95 postpaid. U. S. Electric Co., 1404 Row- land Ave., West Covina, Calif. WHOLESALE. RECORDERS, Tapes, Ra- dios, Phonographs, Catalogue. Towers, Box 155, Philadelphia 5. e e e MUSICAL INSTRUCTION SONGS INTO $$$$$$$$$—Share $29 mil- lion dollars yearly for New Songwriters & songpoets. Songs composed, published, promoted by largest firm. Information, appraisal Free. Send to Nordyke Publish- ing Co., 6000 Sunset Blvd., Hollywood 28M, Calif. SONGWRITERS: RECORDING company wants: new songs. Royalty basis. Na- tional sales, promotion if selected. No charge for melodies. Send material. Music Makers, Dept. В-15, Вох 2507, Hol- lywood, Calif. ` SONG POEMS wanted to be set to music. Send poems. McNeil, Master of Music, M South Alexandria, Los Angeles, alif. POEMS WANTED for New Songs. Send Poems. Immediate consideration. Crown Music Company, 1472-M Broadway, New York City 36. POEMS WANTED for musical setting. Send poems. Free Examination. Five Star Music Masters, 629 Beacon Bidg., Boston, Mass. SONGWRITERS! SEND poems, songs. - Music Service, M!, 243 West 72nd St.. — New York 23. SONGWRITERS! YOUR words set to music. Custom recordings available. - Satisfaction guaranteed. Mail to Music, _ Box 18765, Los Angeles 18, Calif. EC 2 $100. WORTH OF "Know-How"! $1! Imag- - ine! Fun! Fame! Teenagers! Adults! Hurry postcard to: "'Write-A-Tune!" "(MI), Berkshire V, Sandy Hook, Conn. SONGPOEMS AND lyrics wanted. Mail to: TinPan Alley, Inc., 1650 Broadway, New York 19, N. Y. e e о AUTHOR SERVICE — WANT YOUR Book Published? Learn how we publish, advertise, promote, distrib- ute. Many successes. Free booklet MX. Vantage, 120 West 31, New York. 40 . When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED WANTED: BOOK MANUSCRIPTS—all subjects considered. Greenwich Book Pub. (Atten. Mr. Zorn.) 48? Fifth Ave., > е е CARTOONING "HOW TO Make Money With Simple Cartoons''—A book everyone who likes to draw should have. It is free; no obli- gation, Simply address Cartoonists’ Ex- change, Dept. 356, Pleasant Hill, Ohio. ° е е CLAIM INVESTIGATOR TRAINING INVESTIGATE ACCIDENTS — Thousands of insurance companies, airlines, and steamship lines need Claim Investigators. Learn this fascinating’ work—easily, quickly. Free Book—Now! Universal Schools, Dept. R-6, Box 8202, Dallas 5, e e е MAGIC TRICKS, JOKES, PUZZLES 500 TRICKS, DOUGLAS famous 120-page Catalog, only 10¢. Fastest service to magicians for 30 years. Send 104 today. Peughs Magicland, Dept. 3, Dallas, exas. BEST MAGIC. Joker's novelties. Lower Prices. Catalog 10с. Top Hat, Evanston 14, Ш. e o o HYPNOTISM STUDY HYPNOTISM! Amazing illustrated lessons. Big 280-page treatise jam- packed with fascinating information. Sim- ple understandable language you'll enjoy. Full price only $2.95 postpaid—or C.O.D. plus postage. Satisfaction or refund quar- anteed. Order "Hypnotism" today. Nel- son Company, 210 South Clinton, Dept. 2FU-3, Chicago 6. THE PSYCHOLOGY Of Hypnotism— Complete Hypnotic Technique $1.00. E. Hester, 55 Giles Ave., Jersey City 6, FREE LITERATURE: Hypnotism; Autohyp- nosis, Mechanical hypnosis. Revealed by scientists. Hypni, Box 6097, Oklahoma City 11, Okla. MASTER HYPNOTISM in 25 lessons, com- plete easily learned course in one vol- ume. $1 postpaid in plain wrapper. Satis- faction or dollar refunded. Books Publish- ing Co., Amityville 4, N. Y. FREE ILLUSTRATED Hypnotism, Self- hypnosis catalogue. Write: Hypnotist, Ru Wilshire, Hollywood 17M, Cali- ornia. e o e VENTRILOQUISM LEARN VENTRILOQUISM! Get exciting details. Harry Harmon, Jr., Box 33, Mint Spring, Va. e е е CHALK TALKS TRICK CHALK Stunts. Catalog lüc. Car- foonist John Balda, Oshkosh, Wis. e e o GAMES, ENTERTAINMENTS, AMUSEMENTS PHOTOS FROM romantic, exotic Paris. 4 for $1.00. C. Jones, Box #84, Balti- more 18, Md... e о o DETECTIVES DETECTIVE TRAINING. Phillips Secret Service System, 1917-6 North Kenneth, Chicago 39, Hil. Е DETECTIVES—WORK home—travel. Ex- perience unnecessary. Detective Par- ticulars free. Write, George Wagoner, J-125 West 8th, New York 24. ° e о CAMERAS, EQUIPMENT & PHOTO SUPPLIES readers of MI. This enlarger uses a single condenser which also serves to hold the negative absolutely flat in the focal plane. For the easy-to-follow drawings, send 50 cents to the Mi Reader Plan Serv- ice. Fawcett Publications, inc., Green- wich, Conn. Ask for Plan No. Р-4А. BUY WHOLESALE ‘nationally advertised cameras, photo supplies, thousands other products at big discount. Free "Wholesale Plan." American Buyers, Hertel Station, Buffalo 16-AB, М. Y. 40% OFF NEW Weston П Meter. Terrific ч j savings photo equipment, appliances. “Free catalog. Mailers Mart, Box 135-C9, New Rochelle, N. Y. PHOTOGRAPHY FOR Pleasure or Profit. Learn at home. Practical basic training. Long established school. Free booklet. American School of Photography, 835 Di- versey Parkway, Dept. 204A, Chicago 14, ATTENTION CAMERA Owners. Can you use several hundred dollars? See Poly- pix ad in ""Moneymaking Opportunities." — * e ə e MOTION PICTURES & SOUND EQUIPMENT TAPE RECORDERS, Tape. Unusual values. Free catalog. Dressner 29-02 L, 174 St., Flushing 65, New York. RECORDERS, TAPES, wholesale prices. Free catalogue. Craston, 215 E. 88 St., New York City 28. 5,000 NEW-USED 8-16ММ. Silent-Sound Films. International, Dept. MI, Green- vale, N. Y. e o o HOME MOVIES SAVE 50%! GUARANTEED-FRESH color, b&w movie film! 8mm, lómm. Free cata- log! ESO-L, 47th Holly, Kansas City 12, . Mo. o e e AUTO SUPPLIES & EQUIPMENT g ELECTRONIC MIRACLE! Automatically time start, warm motor, anytime, any- place. Complete plans, $3. Parts availa- ble. Electronic Sales, Box 13, Ottawa, Ili. FREE DISCOUNT catatog—speed, power, custom equipment. Almquist Engineer- ing, Milford 1, Penna. FREE, ILLUSTRATED, descriptive informa- fion "The Truth About Water Injec- fion." Injecto, Box 526, Burbank, Calif. ELECTROPLATE AUTOPARTS, novelties, mirrors. Easy, inexpensive home proc- esses. Free booklet. Tyco, Box 13231-QA, Houston 19, Texas. DISCARDED GM71-110 INJECTORS Parts Wanted. Bonus on HV. Packard, 7120 Carnegie, Cleveland 3, Ohio. e « e AUTOMOBILES & MIDGET CARS SAVE MONEY on all new 1956 Automo- biles. For lower Detroit prices, write to EET Nelson, 15488 Glenwood, Detroit 5, Mich. JUNE, 1956 g

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ing new weapon for sportsmen! HUNTING B BLOWGUN Exciting new sport based on an improved version ofthe most accurate native weapon ever devised - the hunting blowgun of Borneo! Silent and very powerful - American sportsmen who first try it cannot believe their eyes! Compression of breath in tube gives amazing air power! Shoots over 300 feet. Enjoy target fun with friends. Average person can hit 2” bullseye at 30 ft. Precision made of the finest deep-blued steel 32 in. long. Hardwood grips. Rubber mouthpiece. Beautiful finish. Excellent for destroying varmints. Kills with- out poison. omes with target, instructions. Comes with 6 5" steel hunting darts. Extra darts 6 for $1. At dealersor Send to: WAMO MFG. CO., Box T -82, San Gabriel, Calif. Send for FREE catalog on Rifle & Pistol Crossbows, Golf & Baseball Trainers, .22 Match & Dueling Pistols, Pistol BB Guns, Blowguns, Outdoor Games TELEPHONES DESK STAND STYLE Slightly used but in excellent esndition. CD Valuable C inter-House Phones, House to Barn, ns Loud Speakers, Mierophones, Ейишга- tional Purposes, Toys, etc. Come complete, ready to use with wiring diagrams included. 52-75 res Two complete for only $5.00. VERS TELEPHONE LAMP KiT—with illustrated in- structions for making Desk Telephone p in- cluding all parts ra ТЫКЕ push switch, cord, plug, etc.) ... $6.50 Ppd. (Shade із not included. Y MICROPHONE, Dept. X-3405 1760 W. Lunt Ave., Chicago 26, Ш. SPARET ‘40% P 5 DISCOUNTS, STILL МАКЕ FAT COMMISSIONS. ый; st Card brings FREE COPY The Wholesale Har Ej HERTEL STATION, DEPT. Mi, BUFFALO 16, N. Y. PLAY RIGHT AWAY! Even If You Don’t Know а Note of Music Now Now it's EASY to learn any instrument. No V real exercises, Start playing rea \ pieces by notes right a Amazing p! at home, in spare time. No teacher. Fewcents per lesson. 900,000 students! Write for FREE BOOK. tion. U. 58th Anis "n D No obli Music, Studio 226, Port Washington, М. Y. ( we're Sorry... that we have not had the production to supply all the demand for Life-Time 50,000 Mile Spark Plugs. New equipment and greatly accelerated production enable us now to make immediate delivery. - MW you have ordered and your check has been returned, please place your order again. Life-Time Spark Plug Sets £ may be ordered from this advertisement. А We will postpay at regular retail price. 42275 Specify make, model and year of car. - Set of 6, $7.14; set of 8, $9.52. DiSTRIBUTORSHIPS Some additional distributorships are now available. If you have already written us regarding your area, please contact us again. If you have not written before, please send us an outline of your previous business experience and qualifications. CONTINENTAL MANUFACTURING CORP. Washington Blvd. at Motor Ave. Culver City 144, California TACHOMETERS by Stewari-Warner Full line! Fills every need. Models for cars, trucks, buses, boats, sta- tionary engines. | Accurate! Positive elec- iric drive assures accu- rate speed indications. Reliable! Vibration- proof... no flexible shafts, no oscillators. Easy to read! Large 3" diameter, illuminated dial face. Pointer has full 270° travel. Exclusive! The only elec- tric tachometer with an odometer. Records total engine revolutions. See your dealer or write: STEWART-WARNER instrument Division Dept. V-66, 1840 Diversey Parkway, Chicago 14, Illinois TELEVISION ELECTRONICS RADIO-RADAR — — Learn 'TV, Radio Servicing, Radar, Sonar, Electronics at home in your spare time by Christy Shop-Method Home Training. Covers all subjects. The only complete course. Repair television and radio sets of friends and neighbors. Service electronic equipment in factories, stores, hospitals. - Earnings made while learning can ЛЕ for your training. 19 TRAINING INSTRUMENTS INCLUDED! Learn by Doing. — Rush name for FREE Book and FREE Sample Lessons. CHRISTY TRADES SCHOOL 4804 N. Kedzie, Dept. T-2102 Chicago 25 e Aigh school e MANY FINISH IN 2 YEARS . No classes. No time wasted going to and from school. Progress as fast as your time anid abilities permit. Standard’ Н. S. texts supplied. Thousands enroll each year in this = “year-old school. Send for FREE descriptive booklet. —— — Á— — —— — — ee — —À5 : l AMERICAN "SCHOOL, "Dept. HA28 i Drexei at 58th St., Chicago 37, lil. i Without obligation, please send FREE descriptive booklet. Complete Canadian Courses available. Write American i School, Dept. HA28,1610 Sherbrooke St. W., Montreal. Mm и re am ma am шн am am жө cum aum qus cua Ra o S M а cn ed s m When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 4]

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ОЛИ. A NS О [CLASSIFIED ADVERTISEMENTS HUNDREDS OF automobile catalogs— American, antique, foreign; dealer books, glossy photographs, shop man- uals; free motor magazines—offered by non-profit club. Write immediately; get on free mailing list. Auto Maniacs 2, Stockbridge, Mich. MAGAZINE ABOUT antique automo- biles. Send for free sample copy. Fran- son's Motor News, Box 254, Eugene, Ore.

INVENTORS: HUNDREDS of manufac- turers have requested our assistance in locating marketable new products. Com- plete information, free. Institute of American inventors, Dept. 50-C, 631 E Street N. W., Washington 8, D. C. INVENTIONS WANTED. Patented; un- patented. Tremendous manufacturers lists. Global Marketing Service, 2420 77th, Oakland 5, &alif.

MI SPORTSER. Why envy the owner of a еч sports car? Build one yourself with these complete instructions and plans for less than $500. To get your copy, send $3.00 to MECHANIX ILLUSTRATED Plans Service, Greenwich, Conn. Specify Plan No. JH-19. * © o MOTORCYCLES, BICYCLES MOTOR SCOOTERS

$40; Crosley- Convertible $25; motorboat engine $5. (Mailorder Only.) Send 25¢ (35¢ for first class mailing) Hai Directory-Catalogue Number 71, listing these and hundreds of other bargains in homebuilders parts, plans, etc. Midget Motors Directory, Athens, Ohio. RECONDITIONED MOTORCYCLES and motors. Chromium accessories. Com- plete stock Indian parts. Expert rebuild- Ing. Fast service. Indian Motorcycle Sales, Kansas City 27, Mo. MOTORSCOOTER PARTS—Send 25¢ for list. Give make & model of scooter. MotorScooter Parts Co., Dept. M6, Box 7211, Indianapolis 1, Ind. > e е AVIATION "THE SMALL Helicopter" Guide Manual. Drawings. Construction Data. Build your own. $4.00. Sandhill Air- craft, Box 315, O'Neill, Nebr.

AMERICAN CONGRESS Of Inventors— quick response, frée "Edison Formula for Success." Inventors, Вох 1481 Milwau- Кее l, Wisc. INVENTIONS WANTED: Patented or Pat- ent Pending. 25 years' experience Pro- moting Inventions. National Service Bu- reau, 3126 Meramec, St. Louis 18, Mo. SUPERIOR PROMOTIONS. Patented; un- patented inventions. New, informative booklet upon request. Superior, 340-344 North Rodeo, Beverly Hills, Calif. CASH BUYERS for ideas and inventions. Write National Inventors Institute, 457 Munsey Building, Washington 4, D. C., or 4900 Euclid Ave., Cleveland 3, Ohio. HAVE CAPITAL to invest in new ideas or patented inventions. Room 604, Tele- graph Bldg., Harrisburg, Penna. o о e FOR INVENTORS INVENTORS—IF you believe you have an invention, you should find out how to protect it. The firm of McMorrow, Ber- man & Davidson with offices in Washing- ton, D. C., is qualified to take the neces- sary steps for you. Send for copy of-our Patent Booklet "How to Protect Your In- vention." We will also send you an "'In- vention Record" form. No obligation. They are yours for the asking. McMorrow, Berman & Davidson, Registered Patent Attorneys, 138-K Victor Building, Wash- ington 1, D. C.

PROPELLERS, PLANS, kits for snow sleighs, air boats, cafalog 25c. Banks- Maxwell, Box 3301-0, Ft. Worth, Texas. POWER HAMMER! Sheet metal cutter. Circular on plans. Rush name. Maupin, Tipp City 8, Ohio. e о ELECTRICITY & ELECTRICAL SUPPLIES

ELECTROPLATING EQUIPMENT, Anodes and Solutions for all types of plating. Instructions. Assemble your own plater and save. Free catalog. Ramyr, Dept. E-6, 1624 East First Street, Los Angeles 33, Calif. LAMPS—PARTS catalog containing wiring

instructions 256. Gyro Lamps, 5402M . Clark St., Chicago 40.

e < o MACHINERY, TOOLS & SUPPLIES "SPEEDY'' DRILL Grinding Guide. Order from ad on page.182. e e е WELDING, PLATING & SOLDERING PERFECT FLAME burning with Amazing Neeco torch guides. Free illustrated folder. New Era Eng. Co., 458 W. 29th Street, Chicago 16, 111. WELDERS, 110/220, WELDS 1/2”, $39.50. мрн 1070 Inner Drive, Schenectady 3,

e о o INVENTIONS WANTED INVENTIONS PROMOTED. Write for free booklet "Your Invention." Kessler Cor- poration, 661W, Fremont, Ohio. 2 ‘When Answering INVYENTORS—SEND for free patent infor- mation book and inventor's record. Registered Patent Attorney, Associate Examiner, Patent Office 1922-29; Patent Attorney & Advisor, Navy Department 1930-47. Gustave Miller, .66MI1 Warner Building, Washington 4, D. C. SEARCHES—PUT your patent searches in the hands of a Registered Patent At- torney or Agent, as he qualifies to give a worth-while pajentability report. Rec- ord of invention form upon request and information on patent protection. Pat- rick D. Beavers, Registered Patent At- torney, 925 Columbian Building, Wash- ington 1, D. С. А PATENT SEARCHES, including copies of nearest .patents, $6.00. Reports air- mailed within 48 hours. More than 100 registered patent attorneys use my serv- ice. For Free invention protection forms, write Miss Ann Hastings, P. O. Box 176, Washington 4, D. C. INVENTORS: NEED Help? Write Insti- tute of American Inventors. Dept. 50T, 63! E St., N. W., Washington 4, D. C. INVENTORS: LEARN how you can pro- tect your invention. A specially pre- pared booklet "Patent Guide for the In- ventor" containing detailed information concerning patent protection and pro- cedure together with "Record of Inven- tion" form will be promptly forwarded to you upon request—without obligation. We are registered to practice before the United States Patent Office and are pre- pared to serve you in the handling of your patent matters. Clarence A. O'Brien & Harvey Jacobson, Registered Patent At- torneys, 63A-D District National Build- ing, Washington, D. C.

Advertisements, Please Mention MECHANIX ILLUSTRATED INVENTION RECORD form free and “Patent Information Every Inventor Should Have." Carl Miller, Registered Patent Attorney, Woolworth Building, New York. 4 INVENTIONS AND patents promoted. А-1 service for inventors for тапу years. Write Adam Fisher Co., 5418 Idaho, St. Louis, Mo. PATENT SEARCHES $5.00. 48-hour serv- ice. Free invention protection forms. Write Raymond L. Smith, Patent Search- er, e Sheraton Building, Washington 5, D. C. i

“INVENTOR'S GUIDE" and “Record of Invention" free on request. Frank М. Ledermann, 154 Nassau Street, New York 38, N. Y. UNPATENTABLE IDEAS can be pro- tected. Literature free. Technical Serv- ices, 3282 Woodcliff Station, North Bergen, N. J. INVENTORS—SEND today for instructive booklet "Patent Protection for in- ventors"" giving detailed patent informa- tion and outlining preliminary steps to take toward patent protection — also “Evidence of Invention" form. Victor J7 Evans & Co., 270-G Merlin Building, Wash- ington 6, D. C. INVENTORS I can save you money. Write Box 5991, Sta. D, Columbus 22, Ohio. e o o PATENT ATTORNEYS аа Ааа аша, INVENTORS: LEARN how you сап рго- tect your invention. A specially pre- pared booklet "Patent Guide for the In- ventor" containing detailed information concerning patent protection and pro- cedure together with "Record of Inven- tion" form will be promptly forwarded to you upon request—without obligation. We are registered to practice before the United States Patent Office and are pre- pared to serve you in the handling of your patent matters. Clarence А. O'Brien & Harvey Jacobson, Registered Patent At- torneys, 63B-D District National Build- ing, Washington, D. C. INVENTORS: WHEN you are satisfied that you have invented something of value write me without obligation, for information as to what steps you should take to secure a Patent. Write Patrick D. Beavers, Registered Patent Atty., 924 Co- lumbian Bldg., Washington I, D. C. - INVENTORS—THIS firm is registered to * practice before the United States Pat- ent Office and available to assist you in the preparation and prosecution of your patent application. "Patent Protection for Inventors" booklet containing de- tailed information and steps to take toward patent protection sent promptly upon request. No obligation. Victor J. Evans & Co., 271-G Merlin Building, Wash- ington 6, D. C. INVENTORS—IF you believe you have an invention, you should find out how to protect it. The firm of McMorrow, Ber- man & Davidson with offices in Washing- ton, D. C., is qualified to take the neces- sary steps for you. Send for copy of our Patent Booklet "How to Protect Your In- vention." We will also send you an "In- vention Record" form. No obligation. They are yours for the asking. McMorrow, Berman & Davidson, Registered Patent Attorneys, 138-L Victor Building, Wash- ington 1, D. C. “INVENTOR'S GUIDE" and "Record of Invention" free on request. Frank M. Ledermann, Registered Patent Attorney, 154 Nassau Street, New York City 38.

JUNE, 1956

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LEAK HUNTER, as you may well imagine, is a man who searches for leaks. In this case, at the Brown-Forman Distillers Corporation in Louisville, Ky. Armed with a flashlight, pointed chisel and a small hammer, the leak hunters inspect the company’s ricked barrels of golden amber for seepage, warped heads, split staves, etc. Working as a team, the ‚ leak hunters check each barrel to make sure it is tight. If a leak is found, the hole is enlarged slightly with the pointed chisel and a small cedar peg is inserted with the hammer. Barrels that cannot be re- paired in the warehouse are marked with chalk and removed to the recooperage room fer major repairs. А soul-satisfying task but sipping is not allowed on the job. * (Photo courtesy Licensed Beverage In- dustries.) When Answering Advertisements. Please Mention MECHANIX ILLUSTRATED 43 DADA aa eect ыы: mobile paint sprayer Choice of craftsmen for 35 years! Saves time, paint and money. Quickly gives flawless finish to walls, furniture, screens, fences and handiwork. Sprays all ma- terials; 4 Н.Р. motor. Diaphragm prin- ciple assures clean, oil-free air. Never FREE: needs lubrication. With gun, less motor. Write for No. 890 Speedy Sprayer.... $3 850 “How to Spray” Booklet and - Add wheels with Wheel Kit No. 909. N Includes 6" wheels, handle, fittings. $6.95 At dealers everywhere W. R. BROWN CORPORATION - 2559 М. NORMANDY AVE, CHICAGO 35, ILLINOIS enge, it Mi instantly goes Ay work өр ри, а metal film around the rings and cylinder walls. With just.15 minutes of your time you have the equivalent of an expensive overhaul, for def fr S the cost. It's so easy, an: can do it. ш else to buy. soe m „Ме will send you AUTO HE (.0.D. plus postage. Or send $3. Ge: an Tos it postpaid. If after trying for 30 days, саг doesn't STOP QIL BURNING, GET n А А us GAS МЕ Сым AGE and are HE MM hed, we will immediately refund your money. am AUTO CHEMICAL LIFE IND., Dept. G-3, эрмен SGN. Y. 2, М.Ү, 'action of “INSURED TIRE SERVICE POPULAR BRANDS $i INSURANCE POLICY with each d bi FREE guarantee Hm nt "Y U CAN'T eve you не, CAN SUCH QUALITY 0 5 БЕ FOUND AT SUCH LOW PRICE! LOSE!! Super Quality—Rugged Performance 12 Months Insured Service 679x15 $3.95700x16 347 670х16 2:98 700x15 $95 60x15 4:85 Ѕиргете ава Nothing tle Months insured Service S|a75x19 700х215 3 .A5|700x20 12 185 4: 4.25 4.45/580x17 0x20 i )- agoran 10) Ba 50 Whitewalis 51.00 extra. MIDLAND Speedy shipments on Mail Orders. F.O.B. Chi- cago. Insurance policy sent with each order. De: duct 10% on отсега for 2 ог more A tires. $ — TIRE SALES Bend CHECK ONEY ORDER.—No COD's. 3701 S. Normal, Dept. ME-35, Chicago 9, tll.

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1 \", B. [CLASSIFIED ADVERTISEMENTS INVENTION RECORD form free and "Patent Information Every Inventor Should Have." Car! Miller, Registered Patent Attorney, Woolworth Building, New York. INVENTORS: INFORMATION on patent procedure furnished on request, with- out obligation. John Randolph, Regis- tered Patent Attorney, 210 Columbian Building, Washington i, D. C. C. A. SNOW & CO., 1-427 Snow Bldg., Washington 1, D. C. Registered patent attorneys. Literature mailed on request. * e e BUILD IT YOURSELF AIR CONDITIONERS—Home, Automo- bile. See Kool Engineering ad page 24. e е • HAND MADE NOVELTIES FREE "DO-IT-YOURSELF" Leathercraft Catalog. Tandy Leather Company, Box 791-215, Fort Worth, Texas. e o • HOME CRAFTSMEN LEATHERCRAFT, METAL enameling, beadcraft, shellcraft, metal tooling, textile painting, many other crafts. Free big illustrated catalog. Kit Kraft, Dept. 937, Studio City 1, Calif. . FREE. COMPLETE illustrated catalog, Leathercraft kits, supplies. Also’ big Metalcraft catalog. Write now for either or both. J. C. Larson Co., Dept..5851, 820 S. Tripp, Chicago 24, KNOCK DOWN cedar chest. Free Price Ala. List. Giles & Kendall Co., Brownsboro, ‘ WOODWORKING FOR home craftsmen. Twenty-two manuals. Over 1,000 pages, 75 training projects, Only complete home training program available. Carefuily written, ely illustrated. Covers everything in cabinet making from wood selection to final finishing. Complete in- struction in care and use of all hand and power tools. Prepared by manual training instructors. Write for free booklet. Inter- state Training Service, Dept. G-4, Port- land !3, Ore. 28 LAWN ORNAMENT Patterns 256. Other patterns 15-20" high. Dutch boy, girl, pirate, bull terrier, Mexican boy, girl, dwarf, penguin, flower girl, 156 each. 25 novelty pattern 30¢. All 62 fuli sized patterns $1.00. Strother; Box 128-4X, Belington, W. Va. 10¢ postage. BUY WHOLESALE nationally advertised power, hand tools, thousands other products at big discounts. Free "Whole- sale Plan." American Buyers, Hertel Sta- tion, Buffalo 16-BC, N. Y. PATTERNS. BUCK Deer 28" high and 30 lawn ornaments, colors indicated. $1.00 postpaid. Lincoln's Studio, Columbia, Conn. WOODWORKING COURSE for home craftsmen. Twenty-two manuals. Over 1,000 pages. 75 training projects. Only complete home training program availa- ble today. Carefully written, profusely illustrated. Covers everything from wood selection to final finishing. Complete in- struction in care and use of all hand and power tools. Prepared by expert manual training instructors. Write for free book- let. Interstate Training Service, Dept. D-4, Portland 13, Ore. WOODCRAFTERS—WE buy what you make from our patterns, easy to make, no special tools needed. Send $! for pat- terns and complete instructions. Satisfac- tion guaranteed. Wm. Rice, 188 Pine St., Kingston 31, N. Y. e o e FOR THE HOME FOAM RUBBER Furniture Cushions—Fac- tory seconds 50% discount. Free cata- logue. Perma-Foam, 429-B Central Ave., East Orange, N. J. | INSECTS ARE coming; average homes summer's protection $2.00. Free litera- ture. Salesmen invited. 400 lOth, Water- town, Wisc. e e e PLASTICS PLASTICS HOME-CRAFT course for Men and Women. Tells and shows how to make hundreds of fast selling plastics products. All plastics and materials -for 3 projects included in course. No special tools needed. Course pays for itself. Write for Free booklet. Interstate Train- ing Service, Dept. D-4, Portland 13, Ore. NEW LIQUID casting plastic, clear, col- ors. Embed real flowers, insects, jd coins. Saw, drill, carve. Send for handbook, "How to Cast with Liquid Plastic'' and- proved success plan showing how to make money at home. Castolite, Dept. G-104, Woodstock, Hl. e о o MODELS & MODEL SUPPLIES | BALSA WOOD, Моде! Aircraft. 40 page catalog, 10с. Sig -Co., Montezuma, lowa. STOP KICKING YOURSELF... because you forgot to buy MI at the newsstand last month ... and missed the “best piece McCahill ever wrote"... or some other wonderful feature or how-to article. Don't miss any more great issues of your favorite magazine. Send yourself a subscription — right NOW! Please enter my subscription to MECHANIX ILLUSTRATED | | ONE YEAR: [] Two YEARS: $3.00* $5.00* L] New Order *in the U.S.,possessions and Canada. All other countries $6.00 per year. [] Re-Order Mail to: MECHANIX ILLUSTRATED, Circulation Dept., Fawcett Building, Greenwich, Connecticut Pp TA OE rede eee È

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PATENTS GRANTE IGGER and better heads on beer are in store for guzzlers with the use of a beer foam stabilizer invented by Miles A. Weaver of Ithaca’ and George К. Grem- inger, Jr., of Midland, Mich. The heady concoction was awarded patent number 2,712,500. Rights were assigned to Dow Chemical Corp. of Midland. For Izaak Waltons who get up in the wee hours of the morning and go off into the hills to fish, Frank E. Wallman, South Wal- pole, Mass., has invented a flashlight at- tachment that can be put on a fishing reel. The device was awarded patent number 2,712,057. A disposable, plastic ball beverage con- tainer with a built-in straw received patent number 2,713,543 for its inventor, Leo Peters of Evanston, Ill. In drinking the contents the plastic ball is squeezed and the liquid is drawn up through the straw. Cries of outraged neighbors can be quieted with an invention that permits a housewife to clean her dust mop indoors, thus elminating the possibility of soiling clothes hanging on the line. Invented by Lloyd G. Copeman, Metamora, Mich., the dust mop cleaner was awarded patent number 2,712,666. On-the-spot interviews can be recorded with a pocket-size wire recorder that re- quires no outside source of power. Pow- ered by two dry cells and two miniature B batteries, it was invented by Louis A. McNabb, Davenport, Iowa. The recorder was given patent number 2,713,618. A recipe for pure fresh cocoanut juice is contained in an invention that won for Ramon Lopez-Irizarry of San Juan, Puerto Rico, patent number 2,712,502. Senor Lopez claims the cocoanut flavoring ex- tract makes a wonderful base when it is used for carbonated drinks. A headphone that buzzes when driver’s head nods and prevents the user “from falling into a deep sleep at a time of danger,” was granted patent number 2,713,159 for its inventor, Warren E. Mor- rison, Minneapolis, Minn. ° оле зери ДИЕ ОО? xu. HELIOS MAUSER-TYPE CALIPER All hardened 1/128”-1/1000”. Has ех. panded vernier scale for quicker, easier reading. Knurled thumb slide lock. Inside & outside measure. | - ments start from zero. Decimal equivalent embossed on reverse side of caliper. Comes complete with depth gauge slide exten- sion. NEW. A S49.75 value, Limited quantity—$12.95 with leather case, MICROMETERS chrome plated. precision neered, carefully tofled to ж 1 new 0-1” cap. $2.25 ea.. ARC WELDER KIT 924.95 -ьиа your own Complete make-up package consisting of 1 Aircraft Voltmeter, О to 30 Volts. 1 Electrode Aircraft Generator to Arc Welder. Shpg. Wt. , under 100 Ibs. Approx, GOVT. COST $475. Buy of a lifetime. Like new, perfect. $24.95. D.C. Generator—same as above, if purchased aep- arately: $12.50. SENSITIVE C-12 ALTIMETER Famous Air Force Type C-12. 50,000 ft. barometric type. Never be- fore available in surplus. Kollsman patents. Same as instrument used on late aircraft. Graduated in 20' increments. Extremely sensitive, accurate. Lim- ited quantity available. Tested Jo our lab, guaran- teed perfect. $19.95 ppd in USA. NEW! 1956 CATALOG Баев ever . . . just out new ow prices, Send 25e for. your Son today. Prices f.O.B. Culver City unless otherwise si Check, cash or money order. 25% deposit for C.O.D. AIRBORNE SALES. CO., INC. DEPT- M1656 8501 Stellar Drive; Culver City, Calif. MECHANICS, eel EARN AS YOU LEARN AT HOME. YOU LEARN AT HOME BIG PAY! SEND FOR 2 NEW FREE MECHANICS Learn the No. 1 trade— get into America's largest indus- try. Earn up to $125 a week and more. Enjoy security — thousands of mechanics needed to service 50 million cars and 10 million trucks. New CTI Home Training prepares you in just a few months. Tools and Tune-Up Kit sent. COMMERCIAL TRADES INSTITUTE Dept. A-303 1400 Greenleaf Avenue FREE, THE PLASTEX Industry needs manufecturers on small scale and for big production of Lamp апа Clock Stands, | Are Goods and Novelties in Р! and Marble imita: on. terial have chance prosperity. Our free booklet will Interest and Denon t you. PLASTEX INDUSTRIES, DEPT. 3 3400 THIRD AVE., NEW YORK 56, M. Y. Business e YOURSELF" If you know a trade or occupation—why not go into business for yourself? Why not make the profits others are now making? IT'S EASY TO START A NEW BUSINESS, It's easier than you think—once you learn the 9 easy steps of building a new business of your own. National Business Consultants has shown over 5000 others how to be successful —let us show YOU too. We guide you every step of the way with sound, proved simple business practices. EXPAND YOUR OWN BUSI- . NESS. Learn our tested, profit-making methods for business success. If you already own a business, let N: B.C. guide you too. You'll be amazed. SEND FOR FREE BOOKLET TODAY! “How to Start a Business” is jam-packed with revealing information. In easy-to-understand language it explains how to ` start and make any kind of business profitable. Free for the asking! Sent to you in confidential plain envelope. Just write: 2: Los Angeles 61, Calif. BOTH FREE! Rush Мате on Postcard Today! NATIONAL BUSINESS CONSULTANTS, Office M-6 When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 45 Ыы Chicago 26, lilinois .-

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анну” УТО. YOU can build a flying model of this most revolutionary of all aircraft— a plane that takes off vertically. Send 50¢ for full-scale plans, plus instructions, to MI Reader Plan Service, Fawcett Place, Greenwich, Conn. Please specify VTO, Plan No. M-236 SHIP MODELS.. Most complete line in New England. Kits, fittings, plans, books, toois, engines, motors. Illustrated catalog 300. James Bliss & Co., inc., Pept. MI, 342 Atlantic Ave., Boston, ass. e e o FOR SPORTSMEN FISHERMEN KNOW that red-color min- nows get more bass! You can have live red -minnows handy, without fuss. Send $1.00 for information. Homesteaders "Agency, Box 247, Mankato, Minn. SAMPLE: 256 COPY of "Тһе Archers’ Magazine." Send 106: 1200 Walnut Street, Philadelphia 7, Penna. e о e SPORTING GOODS CAMPING EQUIPMENT, Tents (Direct from manufacturer). World's largest selection, Send 156 for 120 page 1956 tent & camping lenis. 10: catalogue-hand-' book. Morsan еп g 21H 50th Avenue, Long Island City 1, М. Y. ` 5,000 BARGAINS, FIREARMS, binoculars, war relics. Catalog 50с. Smith Armory, Runnemede, N. J. JAP ALTERING to American shells $6.00. Jap shells $3.75. Catalogue .05, T P Shop, West Branch 7, Mich. SINKER MOLDS—For making your own sinkers. Free illustrated booklet. Read- ing Instrument Co., Box MI-78, Reading, enna. MANY MODERN, Antique Guns. List 10с Ro: Ed Howe, 28 Main, Coopers Mills, aine. * ə о BOATS, OUTBOARD MOTORS FULL SIZE, cut-to-shape Boat Patterns, Blueprints, 715-38 feet. New 1956 itlus- trated "Build A Boat catalog of 50 naval architect-designed. Cruisers, Run- abouts, Sloops, Skiffs, Outboard Boats, Sailing, Racing, Houseboats, 50c. Small Boat Hardware Catalog, $1.50. 1956 "How to Build a Boat" Booklet, $2.50 Cleve- land Boat Blueprint Co., Dept. A-23, Box 1651, Cieveland 4, Ohio. FIBERGLAS, BEST prices, best quality, complete ‘stock, 14’ kit $29.95. Free Cat- alog. Superior Fiberglas Process, 11245 Pardee, Inkster, Mich. MARINE CONVERSIONS for Ford and Jeep engines. Catalog 25c. Lehman Manufacturing Company, 972C Broad Street, Newark 2, N. J. . BUY WHOLESALE nationally advertised outboards, thousands other products at big discount. Free ''Wholesale Plan.” American Buyers, Hertel Station, Buffalo 16-CD, N. Y. BOAT PLANS, patterns, frame kits for modern power boats 1!’-22’. Get the newest catalog 50¢ or state specific re- quiement Designs, Box 568, Compton, alif. CLASSIFIED ADVERTISEMENTS FIBERGLAS PERMANENT boat water- proofing. Special 25% Spring Discount. Complete kits, $9.45 up. Guaranteed ma- terials. Easy application. Full instructions. Free literature. Ajax Plastics, Dept. H, P. O. Box 1323, Fort Worth, Texas. FIBERGLASS, TOP marine grade, yard ог kit. Ontario Fiberglass Co., Box 70, Ontario, N. Y. NEW, USED, rebuilt marine motors. Ma- tine conversions, fittings. Free catalog. Stokes Marine Supply, Dept. 21, Coid- water, Mich. 32 SAILBOAT PLANS. Catalog 20¢, Pow- erboat Catalog 50¢, Boat Kit Catalog E Marinecraft, Box 16!-Х;. Brighton, ass. CATAMARAN. A novel bipod mast is one of the outstanding features of King Kat, a 12-foot,.all-piywood cat. The easy-to- follow-plans include large-scale drawings and full instructions for the amateur boatbuilder. Send $3.00 to MI. Reader Plan Service, Fawcett Place, Greenwich, Conn., and specify Plan No. «В-230, King at. * ə o BINOCULARS, TELESCOPES, MICROSCOPES SAVE 25%! AMERICA'S largest selection, Free 56 page 1956 Binocular Catalog. $3.95 to $250.00! United, 9043 S. Western, A-2373, Chicago 20. Dealers Wanted. WAR SURPLUS Bargains: Millions of lenses, instruments, telescopes, binocu- lars, components and complete line of astronomical telescope items. World's greatest optical market place! Send only, $1.00 for beginner's 10-1еп$ Kit and big instruction booklet Stock 2-CB. Write for Catalog CB, Free! Edmund Scientitic Corp., Barrington, N. J BUILD YOUR. own Reflector Telescope complete Kit: Mirrors, Eyepieces, Tri- pod, ail other Accessories. Kequest free illustrated literature. Criterion Manufac- turing, Dept. KM 18, Hartford, Conn. ESCOPE—REFLECTOR Werde using standard 1\4 Eye pieces to 216X-7X Finders. Calibrated Mountings $39.50- $59.50 ready to use. es Booklet. Esco Froducts, Oakridge, №. J. Sales Show- room, 166 Church St., N. Y. C TELESCOPE KiTS—Accessories. Mirrors aluminized, corrected and ground fo order. Free catalog. Instructions 10с. ‘had Optical, G.P.O. 991, Springfield, ass. "FREE" CATALOGUE! Thousand . war surplus optical bargains. Lenses, Prisms, Telescopes, Binoculars, etc. Send $1.00 for 10 lens Hobbyist Set and Project booklet. R. Jaegers, 691 West Merrick Koad, Lynbrook, N. Y. TRIPOD PLANS. Unless you have a sturdy support for your telescope it will be virtually useless for good observing. For best results build MI's "Quarter-Ton" Tripod. Send 75c for plans and instruc- tions to MI Reader Plan Service, Fawcett Place, Greenwich, Conn. Please ask for Plan No. P-7. REFLECTING TELESCOPES, 60Х com- pletely assembled $29.75. Guaranteed observatory clearness. Free information. Skyscope, 475 Fifth Avenue, New York 17. FREE CATALOG! Boat Kits, Trailers, Fi- berglas, Marine Hardware. Luger In- dustries, Dept. P-6, 4452 Nicollet, Min- neapolis, Minn. 46 When Answering 400X TELESCOPE MAKERS kit contains brass focusing tube, erector, 5 lenses апа instructions—$3.75. Suffolk Science, Mattituck 5, N. Y. Advertisements, Please Mention MECHANIX ILLUSTRATED DYNASCOPE — SENSATIONAL New Re- terion Co., Dept. DM 24, Hartford, Conn. LOWEST PRICES all sizes Binoculars, Microscopes, Telescopes, catalog. Joe's Company, 4827 Second, Detroit. |, Mich. MICROSCOPE CATALOG Free. Research Scientific Supplies, 60 Wall St., N. Y. 5. e o o BODY BUILDING—ATHLETIC EQUIPMENT BARBELLS, FREE Booklet, Health, Strength, Physique. Reading Barbell Co., Box 455, Reading, Penna. BARBELLS, EXERCISE equipment. Courses. Free booklet. Good Barbell Co., Reading, Penna. 100 TRICK KNOCKOUTS for self-defense. $1—!@ each. Priest, Box 251, Evanston, M. e o » REAL ESTATE, FARM LANDS CALIFORNIA RANCHES $50 down. Huge investment profits. Future or immediate occupancy. Flenty.jobs nearby. Free cata- log. rioneer Ranches, Inc., 7419-H Bev- erly Blvd., Los Angeles 36, Calif. _ SAVE HUNDREDS of dollars when selling your real estate. For particulars, write Norman Realty, 80 Lovell Street, Worces- ter, Mass. e ə » PLANTS, SHRUBS & TREES $5,139.90 WAS PAID to John Betts in few weeks. Grow Mushrooms. Ceilar, shed. Spare, full time, year round. We pay $3.50 Ib. Free Book. Mushrooms, Dept. 185, 2254 Admiral Way, Seattle, Wash. e ə е HORSE TRAINING have. It is free; no obligation. Simply address Beery School of Horsemanship, Dept. 1156, Fleasant Hill, Ohio. • o о RABBITS—HAMSTERS RAISE RABBITS Successfully By Knowing Facts, 48 page illustrated book describ- ing 25 Breeds, Housing, Feeding, Вгеед- ing, Marketing, етс. Plus Buietin. cents, American Rabbit Association, 83 Arba Building, Pittsburgh, renna. MAKE AMAZING profits raising Chin- chillas for us. Write for free informa- tion. Keeney Brothers, New Freedom, renna. • o е ANIMAL BREEDING RAISE PHEASANTS on $100 week plan. Little capital and space can make you independent. Free detaiis. Great Central Sysrem, Columbus 16, Kans. ° » • PERSONAL LOANS BY Mail. Borrow $50 to $500. Em- pioyed men and women, over 25, eligi- ble. Confidential—no co-signers—no in- quiries of employers or friends. Repay in monthly payments to fit your income. Su- pervised by State of Nebraska. Loan ap- plication sent free in piain envelope. Give occupation. American Loan Мап, City National Bldg., Dept. MI-6, Omaha, Nebr. THE COURIER! Sample of this fast grow- ing mailorder publication for stamp! Courier, 910 Marion, Pharr.6, Texas. ЕУ JUNE, 1956

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1% f SCIENCE S H ORTIES Г YOU need а fünnel d none is avail- able, try shaping one from tin foil. Pentagon has over 17 miles of corridors, gross floor space of 6, ‚500, 000 square feet. Farm production per man-hour is 2.4 times greater today than in 1920. Uranium is a soft metal, about two-and- ` one-half times as heavy as steel. Record average of 224 tin cans per per- son-was made in U.S. in 1954. Largest city in U. S. with no fatal auto accidents in 1954 was Sioux Falls, S. D. Over 400 hand soldered connections have been eliminated in a TV set via auto- mation. | Hawaiian Islands with 492,000 popula- tion utilizes 132,822 telephones. Accidents kill 14,000 to 15,000 farm resi- dents a year, injure more than 1,200,000. Major U. S. auto firm claims it can pro- duce cars at present 700,000 yearly rate for over three years, never make two alike. Color TV facilities are available in every state, except Idaho and Montana. Toll roads in operation at the end of 1954 totaled 1,451 miles. Changes in tin and.lead content can be used to date illegible, ancient Greek coins. Volcanoes are one of few ways scientists have to study earth’s turbulent interior. If one spark plug in V-8 engine car is not functioning correctly, gasoline mileage may fall off as much as 14 per cent. More than 100 different chemicals play part in manufacture of modern ammuni- tion. ? казу Way To Make | -PERMANENT CONCRETE REPAIRS Get Weld-Crete ® . . the amazing, liquid bonding agent which enables you to perma- nently bond new concrete .`.. or cement top- ping ... directly to old concrete. Eliminates ` need for chipping, drilling, roughening, scarifying of old concrete base. Ideal for permanently repairing concrete floors, steps, walls, driveways, curbings, sidewalks, ceilings. Weld-Crete also permanently bonds new concrete directly to brick, wood, masonite, gypsum board, concrete block, metal, ceramic tile . . . even glass! Job- proved for over 8 years. Specified by leading architects and contractors because they know a Weld-Crete bond is ageless . . . never lets go! Tensile strength over 660 Ibs. рег _ sq. inch. Shear strength about 400 Ibs. per sq. inch. Apply to old surface with brush or spray gun. Then finish off - with new concrete or cement topping. Covers 250-400 sq. ft. per gollon depending on surface conditions. Wf your building supply or hardware dealer doesn't hive Weld- Crete, write for literature . . . or send check or money order for "Get Acquainted" Trial Quart. Only $3.49 postage prepaid. Address Larsen Products Corporation, 4938 Elm St. Bethesda, Md. PRA FET A ч ITA ADU MT LAT ИАА EARN $1000. MONTH TOOL AND DIE DESIGNERS ARE IN DEMAND— and Acme is the only school in America offering complete tool and die design training—Acme graduates step right into responsible, high-paying positions. NOW you can take the same course taught in our resident schools by CORRESPONDENCE in your spare time. Training made sure and easy through our famous Cope System. lf you can finish high school, you can master this pro- fession! Prepare for a career in an $8000-$15000 yearly salary bracket—write today to ACME SCHOOL OF DIE DESIGN, Correspondence Div. X, 8 N. Jefferson St., Dayton 2, Ohio. Approved under PL550 for Korean Veterans training. LAW... STUDY AT HOME Legally trained men win higher posi- tions and bigger success in business and publiclife. Greater opportunities now ап ever betore. More Ability: More Prestige: More Money W.S fy step. You сап train at home during SAE time. Degree of LL.B. We furnish all text еа). анча, aume Law A bra UE о м С v T erms, Get our valuable ''Law vi- terme, Get cur valuable Lew Тгеіпіпі for Leadership өл i LASALLE EXTENSION UNIVERSITY, 417 South Dearborn Street A Correspondence Institution Dept. 6493L. Chicago 5, lll. AIR CONDITIONING == is the booming new trade for smart men who want more money, more security, higher type jobs. START LEARNING AT HOME IN SPARE TIME Never before in our 28 years of teaching REFRIGERA- TION, HEATING, AND AIR CONDITIONING has the business been greater, or the future brighter for ambitious, mechanically-minded men. In a boom of pent-up demand, exciting new equipment for homes, stores and factories is making the public buy to the tune of over $100,000,000.00 a yenn no end їп sight. Result? A critical shortage men (age 18-55) who know the technical REA of correctly manas this new equipment and servicing the old FREE BOOK!!! Employers are having a hard time finding the men they want. Now our spare time home-study method gives you the principles and shortens your shop training. For facts, send today for our FREE BOOK. UTILITIES ENGINEERING INSTITUTE 2525 Sheffield Ave., Dept. J-44, Chicago 14, Ш. When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED SAT, = M

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ү RULE OTHERS With Thoughts. Incredible power, (Details—i0c.) Delmar Wisdom, 846 Sunnyside, Chicago 40. MARRIAGE OR divorce requirements. Complete local information. Map. Questions answered. $2.00. Vegas Infor- mation Center, 1109 Silver Lake Dr., Las Vegas, Nev. .:BORROW BY mail from Postal Finance Co. Employed Men and Women can easily obtain $50 to $603 Fast, Entirely y ments. Friends, relatives, employer, tradespeople will not know you are apply- ing for loan. Advise occupation, amount wanted. Postal Finance Co., 200 Keeline | Bldg., Dept. 94K, Omaha, Nebr. "HOW CAN 1 Find Out?" You can! In- formation discreetly developed. Any matter, person, problem, anywhere. Worldwide. Officially licensed, nded service. Established 1922. Reasonable. Confidential. William Herman, 170 Broadway, New York. "INTERESTING MAILS''—25c keeps your mail box full three months. Bentz, Jr., Desk Б/І, Chatawa, Miss. e о » REMAIL SERVICE . MAIL RECEIVED-FORWARDED. $3 Month. Hedgpeth, Box 830, Alhambra 17, California. LETTERS REMAILED from Hawaii, 25¢. Box 5056, Pawaa Station, Honolulu 14, Hawaii. New, Handy M FILE CASES Now you can keep those treasured back issues of MECHANIX ILLUSTRATED in your library in neat, attractive cases, ready for in- stant reference! Our inexpensive MI File Cases ате of heavy cardboard, scored and ready to glue together in a few seconds.’ Each holds six issues—a $1 set of four takes care of two whole years of MI! Each case handsomely printed in silver (see picture) and has a large square. on which to write the dates of issues. Your choice of three rich, deep colors—red, blue or green. Set of 4 only $1 postpaid. Mail coupon TODAY! Mail. Repay in small monthly pay- » e o JEWELRY Saran rper Mec EUH E COSTUME JEWELRY Supplies. Catalog and samples. 35c. Largest line in Amet- ica. Milady-Fair Co., G. P. O. Box 1328, RHINESTONES, JEWELRY settings, cop- per enameling, hobby kits. illustrated catalog 10¢. J & M Novelties, Dept. C6-5, Griffith, Ind. USED AND new watches $2 up. Free list. Southern Watches, Gray, Ga. e » e MINERALS, PRECIOUS STONES CUT GEMS, make jewelry. Learn easily for profit or fun. Beautiful 100 page magazine tells how; where to get sup- plies, fascinating! Sample 25¢ or request ree literature. Lapidary Journal, Del Mar 6, Calif. ə е о MISCELLANEOUS WHOLESALE CATALOG! 30-807, Dis- counts! Appliances, musical instru- ments, typewriters, phonographs, watches, jewelry, recorders, housewares, etc. Con- solidated Distributors, 2i-46 Lafayette, Paterson 15, N. J. GERMAN LISTS! Anything Manufactured —100 addresses—25¢. Burke Associates, Manchester 4, Mass. $5,199.90 WAS PAID to John Betts in few weeks. Grow Mushrooms. Cellar, shed. Spare, full time, year round. We pay $3.50 1b. Free Book. Mushrooms, Dept. 185, 2954 Admiral Way, Seattie, Wash. MECHANIX oe LLUSTRarep When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED | [CLASSIFIED ADVERTISEMENTS BIG MAILS, 25¢. Listing with us will fill your mailbox with mail. С. M., Box 1211-0, Chattanooga, Tenn. BUY WHOLESALE thousands nationally advertised, products at big discount. Free "Wholesale Plan." American Buyers, Hertel Station, Buffalo 16-DE, М. Y. FREE GOLD panning lesson, catalog list- ing, mining books, supplies, maps— "Where To Go''—Old Prospector, Box 729D3, Lodi, Calif. THREE TEXAS Papers $1.00. Mail for- warded $3.00 a month. 707 Cypress, Pecos, Texas. о e о OLD GOLD WANTED HIGHEST CASH For Old Gold, Broken Jewelry, Gold Teeth, Watches, Dia- monds, M ifverwani, Spectacles, Platinum, Mercury. Free information. Rose Refiners, Heyworth Bldg., Chicago 2. У • e о WATCHES, WATCHMAKING WATCH AND clock repairing books. Free information. North American. pepi 36F, 2320 N. Milwaukee, Chicago 47, MI. Sa WATCHMAKERS'-JEWELERS' SUPPLIES, Instructions. Catalog 20c. Bengall Com- pany, Culver City, Calif. HELBROS WATCHES: Jewelry 70% dis- count. Wholesale catalog 25¢. Dorinda, Box 77, Huntington Station 8, N. Y. USED AND new watches $2 up. Free list. Southern Watches, Gray, Ga. E — 7 р MECHAN ў Í i ILLUSTRATED HE LLLI | сатар, 1 a i Й 1 MECHANIX ILLUSTRATED 1 WANT: П | ОЕРТЬВС sets in RED : H FAWCETT BUILDING — sets in BLUE ! ' GREENWICH, CONN. sets in GREEN : D D 1 1 Please send me sets of MI File Cases as 1 SSN] indicated above. 1 епсіоѕе $1 for each set. 1 1 i П 1 + 1 1 : 1 ONLY Een SET OF FOU : F R j i П К оен. Holds Two $ D П СРЕ i ТАТЕ S une т Full Years 1 1 ус зс E M ш ыс E 3 of Mi! POSTPAID - JUNE, 1956 CT IUe

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special апі Control the World Will we win the crucial race ORLD WAR III, if it comes, may be won or lost, within to gain mastery over this 48 hours—and without a single See A-bomb dropped or a single shot most devastating of all weapons? fired. We could win the next Big З One by harnessing the mightiest | By Dick Halvorsen - physical force in the wofld: the |

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One of 37 planes wrecked by '49 hurricane atop каскад of карш at West Palm Beach. hitherto uncontrollable weather. Fanciful nonsense? Crazy day-dream- ing? ‘Science-fiction? Not a bit of it. Consider these startling facts: A hurricane expends more energy in one minute than all the electrical power produced in the United States in the past 50 years... Hurricane Edna, which ravaged the east coast of the U. S. in 1955, had more raw power packed in its 100-mph. gales than all the A-bombs dropped since Hi- roshima. .. _ Off Luzon in the Philippines іп 1944 a tropical typhoon swept down on three destroyers of the U. S. fleet. Each of the tin cans boasted 60,000-hp engines— but their strength was as nothing against the fierce winds and all three warships turned turtle and sank with all hands. . . The crushing Pacific typhoon of Oc- ‘tober 1945 sent seven warships to the - bottom, drove more than 200 aground, wiped out army installations, roads, bridges and cities on Okinawa and killed hundreds of men with its 180-knot winds and 50-foot waves. Tornadoes of 1952 destroyed a good percentage of the fighting strength of the 50 Strategic Air Command, smashing ex- pensive fighters and giant bombers into worthless wreckage... Hurricane gusts bend steel plate like . tin foil, crumble concrete wharves, rip up forests, crush bridges. A tornado,can drive iron rods through telegraph.poles. Floods: and winds: have caused more devastating than all the puny weapons of man since time began. How could weather be used as the most powerful weapon the world has ever known? History books of the fu- ture. may well contain the following chapter: “The attack against the United States . was launched early on the morning of September 26, 1960. The enemy struck at half & dozen points, using submarine fleets to surprise and capture U. S. installations at Iceland, the Azores, Hawaii, Bermuda and Spitsbergen. Fol- lowing the troop-laden subs came vast air armadas and then three great in- vasion fleets, two in the Atlantic, one in the Pacific. “America met the attack, not with A- and H-bombers of the Strategic Air Command, but with the squadrons of the .Mechanix Illustrated RS i e

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v Air Weather Service and the Navy's Weather Group. Their primary target was the enemy fleet coming up fast in the South Atlantic. “Behind this fleet a Е е hur- ricane, nicknamed Jezebel, was brewing and weather planes moved to Brazilian bases to direct it. Their weapon was a super-thermite bomb which generated intense heat and produced vast low- pressure areas. As the hurricane began its normal northwesterly course, bom- bardiers dropped the heat bombs north and east of the swirling winds. Jezebel, seeking the line of least resistance, spun into the low-pressure area and followed the course laid down by the bombs—a course that led directly to the enemy fleet. “The massed ships were hit with 150- knot gales and waves towering up to 100 feet. Cruisers capsized, their rud- -ders torn loose. Overladen troop ships, unable to navigate, collided and sank. Destroyers and corvettes were driven far off their attack course. The enemy fleet scattered. — z “But hurricanes were only опе weapon in the arsenal of our weather service. Planes loaded with dry ice struck at the airfields captured by the enemy in our overseas bases. Heavy ‘seeding of cloud formations over the fields produced torrents of rain that turned landing strips into quagmires and kept enemy air fleets grounded. “Along America’s east coast, at Miami, Norfolk, New York and Boston, the weather service's huge, mobile. wave- making machines went into action, backed up by wind tunnels generating 2,000-mph gales. The ships of the enemy’s northern invasion fleet reached the coast to find themselves faced by raging seas and winds that made water- borne or air-borne landings impossible. : “While these defensive weather meas- ures were being taken, German- and English-based weather planes raced aloft to utilize weather as a weapon of ‘attack. Balloons carrying packets of silver iodide crystals were released into ‘the everflowing jet stream which pours eastward across Europe at more than 100 mph, eight miles up. “As the packets dissolved at varying June, 1956 Citizens of typhoon-struck Osaka hunt for belongings in the wreckage of their homes. distances, the crystals spilled out and enough of them seeded rain-swollen. clouds to dump torrential downpours on the enemy’s industrial centers. The ` seeding was further aided by ground generators that pumped crystal-laden - fog and smoke into winds prevailing toward the enemy’s homeland. “There was no let-up in this warty weather. The enemy’s farm areas were saturated with thermite bombs, prolong- ing the seasonal drought, causing low- Wind and water moved this motorship to its roadside perch outside Kingston, Jamaica.

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Homes in a Massachusetts town stand help- lessly before the mounting fury of the sea. pressure areas which brought hot winds fanning up from the southern deserts. Drought parched the enemy’s crops; floods swept away his railroads; rains swamped his airfields and factories; mud - bogged his roads and highways; hurri- canes crushed his fleets; typhoons rav- aged his coast; tornadoes crisscrossed his farmlands. “Unable to withstand this terrible de- struction that seemed more the work of a vengeful Deity than a weapon in the hands of man, the enemy sued for peace and World War III came to a quick end.” However fantastic this war report may · sound, it contains nothing that is not How a hurricane appears on airborne radar scope. Photo by Navy reconnaissance pilot. already “in the works!” Man has always tried to control the weather, from primi- tive drum-beaters to jet-borne cloud- : seeders. Today, cloud-seeding with dry ice and silver iodide crystals are the approved rain-making techniques, al- though there have been rumors of suc- cessful electronic methods. In Project Cirrus, a joint Army-Navy test of rain- making techniques, generators burning coke impregnated with silver iodide shot smoke into the air which seeded thou- sands of miles of cloud in a few hours, - with startling, rain-producing results. According to Ferguson Hall, leading rain-making authority of the U. S. Weather Bureau, it would take a score of planes carrying 500,000 pounds of dry ice to seed a 100-square-mile area. With such an amount, he says, ^We might even break up a lightning storm or kill a tornado or hurricane." According to Robert H. Simpson, di- rector of the Bureau's "Project Whirl- wind," data gathered in the past few hurricane seasons has produced evi- dence that hurricanes have an Achilles' Heel where the application of force might affect its formation and path. But finding that vulnerable spot will require a systematic search. There is much we have to learn about hurricanes. We do not yet know for sure the source of the storm's energy, nor how it grows. We don't know why a hurricane causes a “storm surge"—a general rise in water level inundating coastalregions. Hurricane waves more than 100 feet high have been reported, but. do they occur singly or in series? Weather cannot be duplicated in the laboratory to study cause and effect. Even on a clear, calm day the forces in- volved vary from minute to minute. The enormous number of unknowns makes accurate prediction a difficult job even for an electronic brain. But in spite of the difficulties in- volved, the attack against the problems of weather prediction and control is going forward rapidly on many fronts. Ground fogs have been conquered by dry ice and by heat. The imagination of meteorologists has been unfettered by these early victories and recently we have had such eye-opening suggestions: Mechanix Illustrated ui e

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as building huge ocean barriers to de- flect warm currents to melt the arctic ice and make Greenland habitable. An- other novel suggestion has been to drop soot on glacial areas to absorb the heat of the sun and melt the deep-frozen snow. So great have been the strides of meteorology in recent years that Dr. Edward Teller, famed as father of the H-bomb, has predicted that weather control will be possible within ten years. But will weather control be used for the good of mankind? Each victory against the forces of nature puts another deadly weapon in man’s arsenal. And here we are dealing with a force that makes man-made weapons seem like slingshots and beanshooters. You can be sure that the military leaders of all nations are ‘pushing re- search on weather control with all pos- sible speed. Mathematician John von Neumann predicts that by 1980 a Weather Commission will be able to flick a switch and thaw the polar re- gions, or flick another switch and inflict a new Ice Age on the enemy’s terrain. Scientist Vincent Schaefer has stated | YOU CAN FORECAST THE WEATHER _ —. See Page 66 that it is already possible to limit the formation of super-cooled clouds in the atmosphere throughout the world. “In other words,” comments T. Morris Long- streth in his book Understanding The Weather, “an industrious enemy in time of war could overseed a nation’s clouds and sow drought at growing seasons.” . Military men know that such predic- tions are not beyond the realm of pos- sibility. The race to control the weather is on—now! The loser will reap flood and drought, whirlwind and sandstorm, hurricane and typhoon—all the ruin and devastation the mighty forces of nature can wreak. This will be a defeat the brilliance of generals and the gallantry of a people cannot mitigate. There will be no second chance for the defeated. So much for the loser in this dramatic race to control the weather. The winner will control the world! ° Here stood the village of Worth, Mo. A 1947 tornado wrecked it in a matter of minutes.

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Lh ут 'LLOTL . If your girl friend develops a few new ratiles this may be the reason. OUPLE of smart girls were looking through a parts catalogue for some reason or other and arf! the idea of making costume jewelry out of standard hardware items jumped right out and bit them. That was the beginning of Geomet, a successful two-year-old busi- dustrial designer, and Willa Percival, a photographer. Geomet jewelry is made of nuts, washers, cotter pins and simple - leather thongs. For contrast some of the odds and ends are anodized to give them color. Geomet jewelry sells in specialty shops and department stores. ® Left and below: washers, nuts, wing nuts and cotter pins make costume jewelry that's attractive in its own right. ness headed by Patricia Smith, an in-.

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Theresa Rosado, Geomet's assembly line, se- Nothing could be easier than assembling lects bright-hued hardware in the.stockroom. hex-nut earrings by inserting a cotter pin. Punch press is used in putting together earrings, cufflinks. At right are cufflink materials 4. assembled for the press. Geomet's necklaces are made of hardware Willa Percival (left) and Patricia Smith, Geo- of contrasting hues strung on leather thongs. met heads, try out some new combinations. X NU uus e oe т ELLEN 111217: 0D

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Howard Gates, “King of the Cactus Growers,” passes Creeping Devil plant on his farm. He Solved a -Thorny Problem Ever get stuck on a cactus? Howard Gates is stuck on them and sells millions of the prickly plants. By Jack B. Kemmerer OWARD GATES is known as the “King of the Cactus Growers” to the people of Corona, Calif., and his an- nual sales of this native American plant number in the millions. Gates’ now famous Cactus Gardens was first opened in 1930 and was inspired by a cactus show he had seen in Pasa- dena the year before. Already well- versed in the plant field, Gates fell prey to the disease known .as Cactusitis— which transforms one into a cactomaniac —or more. simply, a cactus collector. Gates has never recovered. 56 In a constant search for new varieties, Gates’ main field of exploration is Mex- ico and Lower California. On three ex- tended trips to Mexico, he has traveled as far south as the Guatemalan border in search of elusive varieties. Discoverer of more than 20 different kinds, Gates has had several plants named after him. Cactus growing is a fabulous business; you can get rich overnight, or lose your shirt. Neither seed-grown plants nor ` cuttings require much room, nor a long period of time to reach market size. They are grown in flats, usually 18 inches Mechanix Illustrated

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Тай Ios See Rooted cuttings are usually transplanted . three times before reaching market size. square, holding up to 400 plants. A flat may bring $10, wholesale. An acre holds from 10,000 to 20,000 flats at a time. At $10 a flat, the income from an acre can amount to $200,000! Show these figures to Gates and he begins to tear his hair. He tells you the headaches of cactus farming; damping- off, failure to germinate, and the seed— don’t forget the seed. Cactus growers don’t have a regular and dependable scource from which to buy seed. Gates gets most of his seed by collecting them as they mature on his own plants, a few at a time. This is a time-consuming process and the cacti fruit—containing the seed—explodes when ripe, throwing the seed in all di- rections. To overcome the scattering "of precious seeds, Gates developed a double cone of plastic which he places over the ripening fruit. When the fruit explodes, the cone catches each seed which is then collected: Gates also receives an occasional ship- ment of seeds from Mexicans who hap- pen to know their cacti. Just anyone can’t collect seeds. It is extremely im- portant that the collector be an expert June, 1956 in cacti lore as he must know exactly the species he is collecting and also keep the varieties separated. If he is a cacti ex- pert, however, it can be worth while, as cacti seeds are literally worth their weight in gold. The current price of' seed is in excess of $40 an ounce, which contains about 25,000 seeds depending on the variety of cactus. “There are no particular secrets to operating a successful cacti farm,” Gates says. “It’s the same as any business and it has its own peculiar problems in han- dling.” In nature only a very small percentage . of cacti seeds germinate and the cacti grower must reverse this proportion to be successful. To do this, Gates elimi- nates—as much as possible—various things causing germination failures. All plants are grown in heat-treated or fumigated soil, to reduce pest, dis- eases and weeds. Cacti seeds are planted in seed germinating flats and kept in a ‘glass greenhouse’ with a constant tem- perature of 70 degrees. “Curiously enough,” Gates says, “Arizona, the state with the most varieties of cactus, imports more plants than it exports. The reason is simple—summers are far too hot for cacti seeds to germinate—except for a very few.” ` : About six months after planting, seeds germinate and the flat's surface is completely covered with hundreds of tiny cactus plants. Or at least it is sup- posed to be covered. Now comes one of the many headaches; often only a few of the seeds germinate, sometimes the flat is only half covered, or even less. Why? Nobody knows. Every precau- tion is taken and still the seeds fail to grow. ` $ At this time it is necessary to separate the diminutive cacti plants—one at a time—and replant in flats holding 400 plants. This is all hand work and as these plants continue to grow they will ре transplanted to flats holding lesser numbers of cacti until by the time they reach market size they will have gone through at least three transplantings. Gates maintains ten full-time em- ployees to take care of the 3,000,000 cac- tus plants on his farm. As the cacti reach market size, some are placed in $597 +

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lath-covered houses, still in flats and on concrete bars to give.good drainage. Others are set out, as are cuttings, in various lath or net covered houses. As with the flats, all ground used for cacti growing is fumigated, usually with methyl bromide, to kill pests, diseases and weeds. : Contrary to most people’s beliefs, cacti use a considerable amount of water—when. they can get it- This is especially true during the germination , and early growing stages. When the small plants begin to sprout they receive a thorough watering twice a day.and even adult plants require weekly water- ing. Few cacti die from overwatering. However, the danger lies in poor drain- . age which causes cacti roots to rot, de- . stroying the plant. 5 Cactus is a very hardy plant and ех- tremely adept at adopting itself to varied and often rugged conditions. About 150 different groups or genera, making up more than 2,000 varieties or species, are distributed throughout the American continent. The word cactus stems from the Greek word kaktos, meaning prickly plant. The plants are easily recognized by their fleshy stems and branches, foliage leaves—in most cases—being re- placed by scales or sharp spines. Al- though cacti are succulent plants, not all succulent plants are cacti. Gates estimates only about 75 of more than 2,000 known cactus varieties can be grown profitably in large-scale commer- cial production. Retail outlets are nu- merous. Dime and department stores sell many varieties of cactus. So do florists, novelty stores and supermarket grocery chains. A national food com- pany has, on several occasions, offered potted plants as premiums with box tops. s “A considerable part of the business is dish garden trade,” Gates says. “Prob- ably the biggest appeal is that most kinds of cactus will do well anywhere, even in steamheated apartments with prac- tically no care.” Gates’ sales of plants annually exceed the 1,000,000 mark and he ships not only to most states but to many foreign coun- tries. During the rush season the farm ships a daily average of 20,000 plants and on several occasions have shipped 35,000 in a single day. The prices range all the way from 25 cents to $25 for a single plant. The rare species Gates has in his private collection are not for sale at any price. Packed in specially developed cartons, the multi-spined cactus plants are care- fully placed in layers of shredded paper. As the plants are capable of standing long waterless periods and take almost any abuse, they can be shipped in this manner anywhere in the world and ar- - rive in good condition. Today, Gates says his exploring days are over but he will continue to grow and sell millions of cactus plants each year as long as the demand lasts. And as long as there are people, that well known disease, Cactusitis, will furnish customers for his and other farms. 9 Here's a smaller species. Some adult cacti weigh ten or more tons: others are button size. Large specimens oí the hardy spiny plant are grown in the open field of 15-асге farm. Golden Balls grown in plastic greenhouse came from seeds | Gates planted 25 years ago.

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POINTED ROD in pipe on prow of boat would PROJECTION SYSTEM that reproduces on allow fisherman to anchor craft by stepping the blackboard notes which teacher writes on rod. Shurl Churchill, Strasburg. Ohio. at her desk. Frank Healey, Carbondale, Pa. Is there a gadget you think should be invented? If so, send its description to ; LUSTRATED, 67 West 44ih St. N.Y. 36, ы A D, es th St., N.Y. 5 LUNG SAVERS of compressed air (or helium) N.Y. Each one printed will be awarded $5. in cans so that kiddies can easily blow up balloons. Frank Leonard, Louisville, Ky. "PLEASE DIM LIGHTS" sign on rear of auto EDIBLE PAPER around candy won't become illuminated automatically from brights of . gooey but hungry Junior can gobble it the car behind. Roger Yeaton, Groton. N. Y. ^ immediately. Hoyle Broome, Salem, N. С.” 59

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.. CAR OUTLOOK FOR 1957 Radar brakes, fuel injection, steel convertible tops, smaller wheels and lower silhouettes = . . may make °57 опе of the most exciting years in automotive history. By Stanley H. Brams $ A. Mercury's XM-Turnpike Cruiser has butter ——— fly wing doors for easier entrance, exit Bes ea : One maker may introduce them next year. SS Be бО —

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Oldsmobile Golden Rocket's 13-inch wheel diameter exemplifies trend to smaller wheels. WHEN you slide behind the wheel-of your 1957 car, the look from the driver's seat to the road (or from the road, looking at the car) will be quite different. Ала the way this model threads through traffic or responds on the highway will be pleasantly im- proved—as will the way it stops. In short, 1957 cars promise advances and styling changes that haven't been possible up to now. Some of the im- provements planned may not be ready but enough will come to make next year highly stimulating. Я One of the most remarkable improve- ments in the works is the radar brake which might well be the first step toward completely automatic car operation. The radar brake will be directed by a screen mounted in front of your grille, small enough so that it will hardly be noticeable. From the screen will be transmitted bounce-back detec- tion beams, just like wartime radar. Whenever the beams hit an obstacle ahead they'll message back to the brake system. The brakes will automatically take hold through a system of solenoids, reducing car speed even if the driver is unaware of what's ahead. An adjustable “bounce” is hooked up with car speed so the safety factor will be as worthwhile at top highway speed, with greater distances between cars, as Several '57 models, including Cadillac Brougham Town car, may feature four Кесар

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Ford Syrtis model’s steel convertible top that slides into rear deck is on tap for '57. it is at relatively modest speeds where you are apt to crowd closer to the car in front. Of course the beam can be cut off entirely for city driving so you won’t be stopping and starting in cońtinuois jerks. Next year you will see a significant step in casing evolution. Wheels and tires will be smaller on many cars. Four- teen-inch casings will make a bow, not only a full inch narrower in diameter than the standard tires of recent years but tires that will need inflating only to Detroit expects at least one maker to use fuel injection: like this Mercury prototype. about 20 Ibs. or so. The result. will be an easier, softer ride, lowered silhouette, modestly faster acceleration and slightly less: top speed. In addition to radar brakes, there promises to be some other notable change in braking systems—a subject of concentrated study in the past decade when speeds and power have been in- creasing and brake development has lagged behind. Reports are that 1957 will see disc brakes on more production cars. The virtue of these brakes is that more sur- face is provided than is possible with today’s conventional cylindrical shoes. A circle of metal revolves with the wheel and pressure is applied against it by movable pads. Friction is spread over a larger area and cooling is somewhat im- proved. Above the wheels will be new body shells that will be lower.and, hence, look longer than ever before. Part of the new lowness will derive from the smaller tires and wheels; although a widened cross-section. on the tires will eat up part of the one-inch savings in height that would otherwise be realized. Some more of it will come about in a natural, evolutionary sort of way with both floors and rooflines lowered so that passengers can sit closer to the ground рош апу sacrifice in headroom. Mechanix Illustrated x

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You'll be seeing more of the scenic slide-away plastic top, shown on this Ford X-100. In order to maintain an ‘unchanged amount of entrance room, and possibly to increase it, doors may reach farther . upward. Some are likely to intrude a bit into the roof. One producer, at least, is thinking intently about introducing a so-called “butterfly wing” top to make entrance easier. This would follow the designing of some dream cars shown earlier this year. As the door opened a segment of the roof immediately above it would raise gently, like a wing, mak- ing it possible to move into the seat al- . most as you enter a convertible with the top.down. . Plans also call for a hardtop model whose entire roof (or most of it) will slide back into the rear deck, like an orthodox convertible. Ina more general sense, next year will likely see continuation of two ap- proaches toward design, both of them considerably refined. One might be called the General Motors school of styl- ing, with squarish hoods and rear decks. The other has been followed by Ford and Chrysler stylists and is character- ized by a line rounding downward, par- ticularly along the hood. Both schools of design, however, seem bidding to go curvy on the sides. There is expected to be seen a gentle arc, wheel line to roof line, resulting in more ample hip room on. the seats and in the better handling that derives from June, 1956 a widened structure. That arc, too, will mean the introduction of subtly curved side glass. More glass everywhere. That will be : a hallmark of the 1957 models as it has been for a steady number of years. The glassmakers are hard at -work providing not only larger and more intricately rounded panes but also stronger.ones. Sun-filtering tinted glass will be standard on a number of makes. The bright metal trim on your 1957 will stand up better than in past years. The reason is in the metallurgy of the material. More [Continued on page 171] Centralized lubrication system developed by Stewart-Warner is slated for wider use. у a

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PEU MM RUE TM MN mM à ARMED with prospectors' pick-ham- mers and clad in neoprene suits, frogmen of the Geological Diving Con- sultants of San Diego swim along the ocean bottom off the California coast mapping sections of it foot by foot. GDC was formed two years ago when the members, all marine geologists, decided there was a need for their services. They assist oil companies in seismic explora- tions to locate new oil sources 150 feet below the surface of the sea. ° Undersea geologists ready their cruiser for trip to explore sea bottom for oil 64 Readings are taken when sample is sent up to determine exact location of formations. Mechanix Tlilustrated

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- Diver wears a tough neoprene suit, totes special underwater compass, inclinometer. Here diver uses his pick-hammer to take rock sample from outcrop on ocean floor. Samples are tested with acid and are im- portant in locating underwater oil fields. Divers returning to surface discuss vari- ous features of the rocks they bring up. June, 1956 Over he goes! Back flip off boat's rail is quick way to get to the bottom of the sea.

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You need only a few basic pieces of equipment to start your own forecasting center at home. By George Laycock НЕ weatherman, for all his science, often finds rain falling where he said the sun would shine. The next time he spoils your plans for a family picnic or a week-end fishing trip you may want to get even with him by becoming your own weather prophet. Making your own weather forecasts -is neither difficult nor expensive. Like all weathermen, you'll be wrong part of the time. But you'll find that you can predict tomorrow's weather with con- -siderable accuracy. ^: ' Amateur forecasters maintain private weather stations in every part of the ` and. They give several reasons for their homegrown weather bureaus. Тетрег- atures may vary five degrees or more 66 between their homes and the nearest official weather station. This knowledge is important when planning new con- crete work, adding antifreeze to the car, or covering the flowers. Sportsmen and farmers can always make good use of local weather knowledge. And it can become an engrossing hobby. If you’re in a section of the country where the U. S. Weather Bureau needs more weather observers you may join the 5,000 citizens who day in and out volunteer their time to make weather observations for the government. These volunteer weathermen make ир one of the government's most unusual staff of workers. The Weather Bureau fur- nishes them with rain gauges, ther- Mechanix Illustrated

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mometers and record forms needed for their work. It’s little wonder that in the decades since the idea started the United States has been able to amass _roomfuls of records that no one has yet had time to fully study. If the Weather Bureau doesn’t have a place in its lineup for another observer in your area, you can still be the ace weatherman in your neighborhood. In southern Ohio, corn and beef farmer Clarence Ragland has maintained his own weather station for nine years. Ragland is not a Weather Bureau vol- unteer because he is too close to the Cin- cinnati station: But he makes good use of his weather instruments to help in his farming and as a hobby. "There's a challenge in forecasting weather," says Ragland. “It changes so often that you can't be right all the time. But you can try." The real answer is a home weather station equipped with a few pieces of basic weather study equipment. First choice is a barometer. You can pur- chase one for from $3 to $4 and up. No single instrument will tell you more about the coming weather. А barome- ter measures atmospheric pressure and reveals changes in the pressure. The first step in using a new barometer is to set it for the elevation above sea level at your weather station. Generally this is done by setting the correct elevation - on the face of the barometer opposite a marking on the case. Government weather offices will set a barometer for you. Or you can get the correct eleva- tion from your county engineer and set yourinstrument accordingly. Barome- . .ters.should be kept indoors, never in direct sunlight or hot places. The key to approaching weather is the movement of the barometer hand that tells whether atmospheric pressure is rising or falling. А rapidly rising ` barometer foretells fair weather and a falling barometer indicates approaching storms. Barometers àre more accurate in winter than summer because summer showers may occur without falling air pressure. Don't place too much faith in the fact that the hand on your barome- ter is pointing toward the words “fair” or "rain." The change in air pressure June, 1956 type rain gauge has four parts. Used in agricultural research, anemometer records wind speeds at near ground level. indicated by the moving hand is more revealing than the position of the hand at any given moment. A rain gauge will give you an accurate record of precipitation at your weather station. The standard weather bureau There is a copper can 24 inches high. Into this fits a brass measuring tube 2.53 inches in diameter and 20 inches deep. On top of . Sling hygrometer, left. is used to meas- ure relative humidity. Rain gauge, right, collects water in funnel top and enables forecaster to tell the total precipitation. PoE LER © See

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Wetdry bulb type hygrometer, left, gives humidity reading, sells for about $7.75. Maximum-minimum registering thermome- ter, right, саа be had for approximately $10. this tube is a funnel to catch rain and snow. A measuring stick completes the equipment. You can get inexpensive 3 \ wons of the rain gauge for $10 or ess. You'll also need a thermometer, of course. Frequent temperature readings give clues on coming weather. А. rapidly rising temperature, for instance, coupled with a falling barometer read- ing may reveal an approaching cold front. You may. want to add maximum and minimum thermometers which re- veal temperature extremes for your permament records. Then if you want to check relative Brass case barometer is about $38.50. Photos courtesy Taylor Instrument Co. (or mm 76 S ^ SN b. nSS cae Á 68 humidity you can add a hygrometer. This instrument is composed of two thermometers of the wet-dry bulb type and the difference in readings between the two is the relative humidity. This _ is especially important for farmers doing such jobs as drying grain with unheated forced air. One other piece of equipment the - amateur forecaster should own is a wind vane unless he wants to rely on the "movement of smoke or flags or the leaves of trees. The wind speed has a tendency to rise and fall daily. It is usually lowest in the morning and highest in the afternoon. But a sudden change in wind speed aside from these daily variations often. means a coming change in weather conditions. Our pre- vailing winds move from west to east. Winds from the south or east often bring storms with them. Fair weather gen- erally comes from the north and west. This, plus an eye on the changing cloud picture, plus your barometer readings, can usually tell you whether to take the family on that picnic or stay home. The wind vane should be erected on the roof of a building or on a high pole. The rain gauge should rest on a firm foundation in an open area. To house your thermometers and hygrometer, build a small shelter on stilts. Another valuable tool for the amateur weather forecaster, and one always handy, is the series of weather maps that run in most daily newspapers. Those maps show you the weather conditions for the whole country. By studying them you get a picture of the various air masses and the directions in which they’re mov- ing. Weather in winter travels about 25 mph and in summer about 20 mph. Thus you can predict when these masses may move into your area. Then the approach of clouds will come . as no surprise to you. And the clouds themselves can tell you much of the ap- "proaching weather. (See page 72.) For instance, as a cold front approaches it pushes ahead of it alto-cumulus or alto- stratus clouds followed by stratus or strato-cumulus and cumulo-nimbus. As the cold front passes overhead the clouds will be cumulo-nimbus and low Mechanix Illustrated

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Wind Speed Indicator from Abercrombie & Fitch is con- nected to vane on roof and gives the velocity in miles- per-hour in comfort of liv- ing room, costs about $20. stratus. Then as the front passes on the clouds change to alto-cumulus and cumulus or strato-cumulus which ride high in the sky and thin out rapidly. Temperatures rise steadily ahead of a cold front, hold steady as the front ar- rives then drop rapidly with its passing. There are a few generalities you can make about clouds. The higher they ride, the finer the weather. If they're coming in from the south they may bring rain; if from the north, clear энш tg 3 MER эн. | aueh | Strony Mascus: ct Sar weather should follow them. With a bit ' of practice in sky gazing you will soon learn to recognize clouds, tell how they change from ойе type to another and what the changes can bring in weather. Probably since man first stood up on two feet nothing has so baffled him as — the weather. It still baffles him. But anyone with a few pieces of equipment and a consuming interest can unravel at least some of the weather's secrets and foretell its moods in advance. * WEATHER PROBABILITIES FOR BAROMETER READINGS BAROMETER RISING | 29.0 to 29.3 inches Clearing, with high winds and cool wave. 29.3 to 29.6 inches High winds. with cool wave, preceded by squalls 29:6 to 29.9 inches Fair weather, with fresh winds tonight and tomorrow 29.9 to 30.2 inches Fair, with brisk winds, which will diminish. 30.2 to 30.5 inches Generally fair weather, probably cool today, with variable winds 30.5 to 30.8 inches _ Е Clear weather tonight and continued cool, : with moderate winds. 30.8 to 31.00 Southeast rains with high winds. — If the barometer reading hasn't changed since the .. last setting, continuation of existing weather con- __ ditions may be expected. їй A ~ BAROMETER FALLING 30.7 to 30.5 inches Fair and warmer, followed by wind and rain 30.5 to 30.2 inches : ` Storm brewing in the direction of the wind. 30.2 to 29.9 inches : Cloudy and warmer, followed by unsettled weather. 29.9 to 29.6 inches Unsettled weather, / increasing winds and warmer. 29.6 to 29.3 inches ~~ — Clearing, slight squalls, fair and cooler tomorrow 29.3 to 29.0 inches Clearing weather, with high winds, — accompanied by squalls and cooler. 29.0 to 28.7 inches Stormy weather. Nore: The rate and intensity of a coming wea change is proportional to the rate and intei of change in pressure. E

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PENC/L GLUED ON ----- ------ «RUBBER САР OVER-----s, MILK BOTTLE : ! OUTSIDE AIR n | PRESSURE How weather-wise are you? Here |©А/Ө#5 fang | i INSIDE | ea "| n are practical tips to make the | Il |! PRESSURE m Ld || job of prediction easy and fun. LOW! (LESS PRESSURE Г (more PRESSURE = Ву Eric Sloane OUTSIDE) OUTSIDE) ==? you can make amazingly accurate ЧА ы predictions by using’ these handy | | hints from the timeless folklore of |} "a | weather forecasting. They аге re- | 41 Ё z printed from Eric Sloane’s Weather € à Book, published by Duell, Sloan and You can make your own aneroid barometer Pearce. ° at home using the materials shown above. BY COUNTING THE CHIRPS OF THE Brack Fiero CRICKET- ALL INSECTS QA£ QUIET ABOVE THIS BEES BECOME IDLE-ABOVE- THIS CRICKET CHIRPS PER MINUTE. НЕК ON: 5 вес ] TH ght ence ` (Uo NS атое st WN Н CALLS OF THE KATYDID "KAY-TEE DID IT 1"------ "KAY-TEE DIDNT!" ------ *KAY-TEE DIDI". - - ----- {мй "КАТЕ DIDN'T! --—-- ~- - SECONDS ri азыт, Jj П CICADOS ("LOCUSTS") SING ABOVE THIS. THEN ADDING © [KATYDIDS SING AT NIGHT. MALES ARE VOICELESS YOUVE GOT A t KATE DID Wace Ea | i TEMPERATURE) BRAG Aic oo “in Е 5 READING ! RATE == ш ы ылы m | 1 Р '"KATYDIDS MUTE )- - - --| 249 ургаа MU. | ANTS STAY HOME BELOW THIS. ё H BEES VICIOUS GELOW E THIS е -» i : 407]? |-4,, iwsecrs ARE MUTE BELOW 40°F. INSECTS HELPLESS BELOW THIS 30? 4—— INSECTS BECOME DORMANT BELOW 32° GRASSHOPPERS CANT , . FLY BELOW THIS---° 523 Diagram illusirates how you can make approximations of temperature by observing insects. Sailors were looked upon as weather experis in days of old. They learned lore at sea. > - 70 i : Mechanix Illustrated

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ЖЕ дз UA тко DEW INDICATES А GOOD DAY AHEAD: A DRY MORNING IS SIGN OF SHOWERS. BACKING A VEERING WIN. AS SIGN OF FAIR WEATHER: BACKING WIND MEANS RAIN. RAINBOW To WIND- WARD, PAIN AHEAD. RAINBOW TO LEE- WARD, RAINS END. THINNING AIR IS HARDER ТО FLY IN. BIRDS“SITITOUT” BEFORE A STORM DISTANT SHORES LOOM UP NEARER BEFORE INDICATES NEARING LOW “AREA , WITH W/NOS AND RAIN. LARGE HALO AROUND THE MOON INDICATES FREQUENT AT THE TURN OF THE TIDE (IF AIR IS HUMID) | HIGHER THE CLOUDS, FINER THE WEATHER. LOWERING CEILINGS FORETELL 4 RAIN. SKY FULL OF WEBBY CIRRUS FORETELLS DISTURBANCE AND RAINS ON ITS WAY SMOKE THAT CURLS DOWNWARD AND LINGERS, MEANS A NEARING STORM, LIGHTNING FROM THE W. OR N-W. WILL REACH YOU; FROM S. oR S.E WILL FASS Uh ae

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HOW ТО READ If you know which ones to believe, those old weather adages can make Te meteorologists say that you can’t predict weather by just looking at the clouds. Yet often the sky predicts local weather better than national weather reports. Clouds are to the atmosphere what white-caps are to the ocean; usually they tell what is already happening. But sometimes clouds can tell you what’s in store just over the horizon. As you find below, a fast-moving, back-leaning storm will creep up on you faster than the slow-moving kind that flows over- head first to warn you. Weather change is usually caused by the moving in of a new air-mass. The ' biggest cloud-fuss and rainfall occurs along the air-mass front, so the cloud predictions explained here are drawn along with their frontal plans. When a cold air-mass approaches with its clouds and rain, its front (shown by X in the drawing) slants backward: the snow-plow shape will strike without any overhead warning. Only the great height of warm air thunderheads pushed into the sub-stratosphere by the cold-air “plow” gives warning. But when a warm air-mass approaches, its front (shown again by X) slants forward and flows overhead for quite a while before the rain begins. Note that all the clouds before, at, and behind the cold front are lumpy or cumulus in type; and notice that all the clouds before, at, and behind the warm front are ceiling-like or stratus in type. As an air-mass wears itself out, its cloud forms become less typical; but generally you may look up at any time and tell 1. Any time you see anything but regular, oval cumulus clouds, you can look for a change. Chaotic, towering cumulus clouds shown here say a cold front is coming. 2. When cumulus clouds get bigger, darker and lower, a front may be just behind them. : 3. Thunderhead’s anvil top leans the same way the storm is traveling—weathermen call it the direction of the storm—and looks, from the ground, like a high webby ceil- х 72. ing. 4. The first dark cloud shelf of a thunderhead. or line squall cloud is too high for rain but it will follow in a few min- utes. 5. The thunderhead (cumulo-nimbus) is most common in summer. Hain and/or hail falls directly beneath. 6. Low scud (broken cloud fragments) follow the storm, herald clear air. 7. Cold air-mass cumulus; the higher, whiter, more oval and flat- bottomed, the longer the fine, dry weather. Mechanix Illustrated

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THE CLOUDS you a short-order local forecaster. what kind of air-mass you are in or what kind of an air-mass change is approach- ing. A few pointers on cloud folklore: The sailor’s “mackerel sky before a storm” saying is untrue; cirrocumulus or mackerel sky, which resembles rippled sand, merely indicates a change. “Mare’s tails indicate a bad storm,” is also an untrue saying: only when the whole sky is shrouded with these cirrus forms is the saying true. Sun and moon halos, caused by the light shining through ice- clouds, are, on the other hand, accurate signs of warm front precipitation (rain) during the warmer months. Wind directions may be ascertained by watching the direction of cloud move- ment: by then facing the wind and point- ing to your right, you can locate to the nearest low pressure storm center. Be- cause most summer storms move from the west to the east, lightning or storm clouds from the west or‘northwest will always reach you; from any other direc- tion, the storm usually will pass you by. Clouds may move in different directions at different altitudes, but the higher wind direction will lower in time. Darkness of clouds has no definite meaning, but their height is important. Low clouds can rain to the earth. High clouds, no matter how dark, should never worry you; only when their alti- tude begins to lessen is rain in the mak- ing. You will find that clear night skies produce heavy dews; a dry lawn goes with lowering night skies and a strong possibility of rain the following day. * he equence and Anatomy ofa Yarm Front and Warm Air-mass CIRRUS -COVERED SKY MEANS A WARM FRONT RÁIN 1. When the whole sky clouds with webby stratus, you are usually looking at the topmost head of a warm front that will get to you in about ten hours. 2. A little later you may see the sun or moon wearing a big halo as it shines through high ice clouds. 3. When the sun or moon looks like a big dull blob through altostratus cloud, rain is about six hours away. 4. The nimbo- stratus or rain-mass of the warm front June, 1956 -— c Maerm . Mass. С clouds produces a longer and slower rain than the quicker cold front cloud struc- ture does. 5. In the wake of a warm air- mass you will always find haziness, moist air, poor visibility and slower, steadier winds. Notice that all the warm front clouds are ceiling-like stratus in shape. They flow over you like an elevated mist. Only the purging action of a cold air-mass can dry and clear warm air-mass atomsphere. 73 ра LIS | J Pa кшз, Ж SE dc АЛАЛЫ

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GRAND PRIZE Legionem P Debs c Studebaker Golden Hawk x)

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... Dozens of Other Great Prizes ERE'S what you've been waiting for! MI presents the biggest ànd most exciting contest in its long history, giving you a chance to win your choice of three great American sports cars. Also on our prize list are beautiful boats, power workshops, outboard mo- tors, cameras and many, many other awards. For those who didn't place in our Buildwords Contest last year, here is a fresh opportunity to hit the jack- pot for a Ford Thunderbird, Chevrolet Corvette, Studebaker Golden Hawk or some other valuable prize you've always wanted! You'll find the $20,000 High- . way Safety Contest is easy and fun, too. 4TH PRIZE Chris-Craft's beautiful new 22-ft. Express Cruiser! Big cabin sleeps four, has galley, dinette, toilet and berths. Uses inboard or outboard power, does up to 27 mph. Kit is worth $1,141, For Pictures of Other Prizes Turn the Page Complete Rules and Entry Blank On Pages 80-81. June, 1956 : ; 75

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5TH PRIZE A famous Atlas woodworking shop of rugged power tools, worth $597.35. Consisis of heavy-duty floor type drill press with motor (left), the 8-in. tiltarbor circular saw with stand and motor (center) and 6-in. precision jointer with stand and motor (right). 6TH & 7TH PRIZES Two 30-hp outboard motors, the Johnson Javelin and the Evinrude Lark. Each of these great silent-running, twin-cyl- inder power planis is worth $582. Complete with fuel tanks and electric starters. Winner No. 6 has his choice. 8TH PRIZE The home shopman's delight, a complete Shopsmith outfit! The five precision-engineered power units are worth $489.30. Includes a Shopsmith Mark 5 plus the 4-in. jointer, big 18-in. jigsaw, 6-in. belt, sand- ` er and compressor-sprayer. 9TH PRIZE 10TH PRIZE Custom Craft 15-ft. Thunderbolt runabout. Speedy Triumph Terrier motorcycle, robust Seats 6; finished, ready for water—$485. British lightweight; 4 speeds, $462 value. «)

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11TH PRIZE Superb hi-fi set by Bogen. gives very best in music. A complete $434.45 outfit: AM-FM tuner. an amplifier unit, triaxial speaker and the transcription player. rs . 12TH PRIZE 4 |! Lovely Philco Miss Amer- ica 24-in. TV set in mahog- any. Top-Touch Tuning, Remote Control—$399.95. 13TH PRIZE A quiet but powerful 20-hp -889 Mercury Mark 25 out ; board. Dyna-Float Suspen- sion, fuel tank; worth $395. 14TH PRIZE P Flashing new 1956 Cush- man Eagle 5-hp motor scooter. Coiled spring ride, Husky engine— $355. 15TH PRIZE 6TH PRIZE Chrysler Airtemp Conventional Deluxe %- A complete Lionel train set. Landscaped, hp air conditioner for 500 sq. ft, $314.95. assembled, ready to go: nine units—$300. 17TH PRIZE Eastman Kodak's $286 movie set, everything you need: Medallion 8mm cam- era, the Showtime projector and 40x30 Radiant screen. 18TH PRIZE D © А handy DeWalt MB-F Power Shop machine, %-һр motor, 9-in. blade, guard, steel cabinet: $280.90 gem. Continued Next Page p

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С Ё а E s | 19TH PRIZE Husky 7'%-hp Scott-Atwater outboard, a boatman's pal. With famous Bail-a-matic, Aquamute and tank—$239.50. 22ND PRIZE Deluxe Gale Buccaneer 5-hp outboard: quiet, full gear - , Shift, tank on head; $205. 26TH PRIZE Highly prized Bausch & Lomb Zephyr-Light 7x35 (7-power) binocular, in leather case, straps. Valued at $170.50. T 20TH PRIZE й Heathkits $236.95 Һат rig of DX-100 phone & CW trans- mitter kit, 4-band receiver and the Grid Dip Meter kit. 23RD PRIZE U. S. Plywood’s fine set of Kalistron his-and-hers luggage by Belber— $200. 21ST PRIZE 3x A world-renowned Rolleiflex Automat with £3.5 Schneider Xenar lens, Synchro-Compur shutter and case; $234.50. me) 24TH PRIZE Brand new RCA Victor hi-fi tape recorder, The Judicial. _ Three speakers, two-speed, portable. Worth $199.95. 4 25TH PRIZE Delightful $184.25 Orvis fly fishing kit: Deluxe ~ 2 рс. rod, Hardy reel, 4 dz. flies, leaders and case, Aerofloat line, Wheatley fly box and net. 27TH PRIZE Duro's jack-of-all-trades, the saw-jointer combo unit, does almost any woodworking task. Without motor—$160. 28TH PRIZE ` Criterion 60mm T8 telescope; / 40x, 64x and 89x eyepieces, case, rightangle adapter, 3x finder and tripod; $145. [7]

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29TH PRIZE Remington's brand new 30-06 autoloading high-powered big game rifle with walnut stock, has light recoil, clip: $144.30. 30TH PRIZE : 31ST PRIZE Strato-World П, -RCA Victor's beautiful Detectron $135 DG-7 geiger counier with new all-band portable priced at $139.95. separate probe, a versatile prospector. 34TH PRIZE Special grade Remington autoloading shotgun, choice of gauge, choke; 4-5 shot; $130.60. 33RD PRIZE 32ND PRIZE *. Syncro professional-type jig saw with Renowned Skil Saw plus table bench, lamp; plus the sander; $131.80. and a sander-shaper—$131.85. 36TH Mossberg .22-cal target rifle with a 4x telescopic PRIZE sight. 20x spotting scope and stand: worth $105.80. 37TH PRIZE Pair of fine matched 2 Presidential rods in 35TH PRIZE case plus a SpinCast Stanley's finest hand tool kit, reel with line from tools for every home job; $106. South Bend — $103.50. 38TH PRIZE b Three complete fishing kits from M Ocean City: for baitcasting, fly fishing and spinning: $100 value. 39TH PRIZE Thor 56KC SpeedWrench, with !^-in. drive, steel case, 6 sockets; it also drives screws, drills—$100. Its easy to win one of these great prizes. Turn -the 79 z page, read the rules and start solving the puzzle now! ;

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Tes ia EEE S AAE Rule for ing Cantaest ty contest E All of Them Carefully Before Starting on Puzzle 1. The MI НіснуАҮ SAFETY CONTEST is com- posed of four puzzles: Мо. 1 in the May 1956 issue of МЕСНАМїХ ILLUSTRATED, No. 2 in the June issue, No. 3 in the July issue and No. 4 in the August issue. 2. Complete all four puzzles, trying for the highest possible score. In scoring, add the letter values on each horizontal line and place these sub-totals in the boxes marked LINE TOTALS. Then add LINE TOTALS to get your score for each puzzle. (See Sample Puzzle and How To Win.) 3. Write your score for each puzzle in the MY SCORE box. Write your total score for the four puzzles in the box marked GRAND TOTAL on Puzzle No. 4; also write this Grand Total in the lower left corner on the address ` side of your envelope. PRINT your name and address on each puzzle in the spaces provided. 4. You may submit legible copies of the first three puzzles. But Puzzle No. 4 must be clipped from the August 1956 issue. 5. The four completed puzzles—pinned, paper-clipped or stapled together—must be mailed in the same envelope. Do not mail puz- :zles separately. Do not include anything in the envelope except puzzles. Print your name and return address in the upper left corner on the front of your envelope, then address it to: MI HIGHWAY SAFETY CONTEST FAWCETT BUILDING GREENWICH, CONN. 6. The final authority on acceptance of words used in the.puzzles is the latest (1953) edition of Webster's New Collegiate Dictionary. Any complete word defined in the main section of this dictionary (pgs. 1 through 997) may be used—EXCEPT possessives formed with an apostrophe (e.g, girls); hyphenated words (e.g, post-mortem), proper nouns (names), or abbreviations. Plurals and other accepted forms (such as past tense) of words may be used. The same word may be used more than once in the same puzzle or in different puzzles. All words must read from top to bottom or from left to right. . 7. Entries must be postmarked not later than September 1, 1956. No entry will be ac- knowledged or returned. All entries become the property of Fawcett Publications, Inc. 8. The three contestants having the highest scores wil win Grand Prizes. The con- testant with the highest score will be given “his choice of a 1956 Ford Thunderbird, a Chevrolet Corvette or a Studebaker Golden Hawk. The contestant with the second highest score. will have his choice of the other two cars. The contestant with the third highest -score will win the remaining car. Other prizes will be awarded accordingly, with fourth prize going to the contestant with the fourth highest score, etc. Originality, neatness and legibility will be judging factors in event of ties. 80 а. 9. The Editors of МЕСНАМІХ ILLUSTRATED are the judges of this contest and their de- cisions shall be final. Correspondence will not be entered into with contestants concerning the contest, nor will telephone calls ог tele- grams relating to it be answered. 10. Contest is open to any resident of con- tinental North America except. employees of Fawcett Publications, Inc., its wholesale dis- tributors and advertising agencies, and their employees and families. 11. The winners: will be notified by mail and their names will be printed in a future issue of MECHANIX ILLUSTRATED. 9 SAMPLE PUZZLE jj 7 ПП

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SS $ nas x à Ў Ў / J] The vertical lines on the fairway backdrop will let him know if he hooks or slices. Automatic scoreboard adds up total yard- age, gives GolfO-Mat its basic appeal. AUTOMATIC DRIVING RANGE НЕ Golf-O-Mats at Palisades Amusement Park, N. J., are the world’s first fully automatic driving ranges. Only 25 feet long, they still give the golfer the feeling of freedom he needs for serious practice; they also record distance, hooks and slices. ° Player drops in quarter, picks his club. First ball comes up at once on automatic tee. Light bulbs show distance of.each drive as ball hits electronically activated backdrop. Inner workings of ball return. Golf-O-Mat was designed by Bert Lane of Miami Beach.

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Ge ed Harmon Trophy winner Coleman with a model of his 225-mph Aeromarine.. Skeets Coleman’s three-way gad- about will be a performing fool X and as easy to pilot as a °56 car. 8&4 HE GREAT advances in aircraft de- sign of the past 15 years have had ~ little effect on the looks or performance of the small private planes now being built; you could have landed any of them at a small airport in the mid-30's with- out scaring anybody. But with. Skeets Coleman's Aeromarine design the field of private plane building may begin to catch up with the times. The Aeromarine, which is still in the Mechanix Illustrated al

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Aeromarine's rear-mounted engine and prop will mean an unusually quiet cabin. workshop stages, will be a high per- formance plane that can be operated from land or water or driven like an automobile—making it ideal for the all- around week-end sportsman. Compared to the many hybrids of this type that have preceded it, the Aero- marine has a convincing, unified look that you would expect from a man of . Coleman’s background and that takes it clean out of the Rube Goldberg class. Its modified delta wing structure in particu- lar reflects Coleman's recent experience as test pilot on the Navy XFY-1 Convair Pogo, the vertical takeoff fighter. For his achievement in making the first-ever flights in this radical type of plane Cole- man won the 1955 Harmon Trophy. In his design Coleman has concen- trated on creating a go-anywhere air- plàne—which meant cutting down on its performance as а саг or boat. Asa саг it will be a power tricycle with a top speed of 50 mph. Power for humming down the highway will be fed to the rear wheels of the landing gear; steering will be through the single front wheel. Asa boat—well, it'll float fine. If you want to go up the lake for more bait, why not let down the hydro-ski under the hull and make a short hop of it? | i But as a plane the Aeromarine is ex- pected to show considerable class. It will have a range of 800 miles on 80 gal- lons of gas, a top speed of 225 mph. Cruising speed, with five aboard, will be 200 mph. It will take off with a run June, 1956 Ability to operate off water should insure Aeromarine’s popularity among sport flyers. As a car it will be a medium performer with an estimated top speed of 50 mph. of 800 feet, land at 57 mph. Simple con- trols and instruments, plus the stability and no-stall characteristics.of the delta wing, will make flying easy for anyone. One device designed just for the ama- teur pilot is a miniature delta wing mounted on a fulcrum on the nose of the Aeromarine. This “radiator ornament” will tell the pilot at a glance if his plane is in a safe altitude in relation to air- speed and wind—the most important thing to know when fiying a delta wing. An extremely advanced feature for high lift on takeoff and landing will be a system for sucking boundary air off the leading edge of the wing. This will be an aid rather than a necessity; if the system conks out it will still be quite simple to land or take off safely. ° 85 е Ic» d ына ал

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The Chevrolet “The hot one is even hotter,” Tom agrees after testing the '56 Chevy with “‘the best engine in the U. S.” By Tom McCahill à Chevy '56 design has clicked with public: the car is top seller in U. S. this year. HEVROLET has come up with a poor man's answer to a hot Ferrari. Chevrolet introduced its new V8 engine in 1955 and it quickly proved to be the hottest thing since Casey got locked in the steam bath. Here was an engine of only 265 cubic inches that, due prin- cipally to its fantastic breathing proper- ties, can wind up tighter than the E string on an East Laplander's mandolin. These engines, when equipped with available kits, can reportedly develop one horsepower per cubic inch of dis- placement, though only rated at 225, and they can wind well beyond 6,000 rpm without blowing up like a pigeon egg in a shotgun barrel. Mechanix Illustrated

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=, ‚ Sheriff Jack Tapscott loaned. Tom his 150 | sedan with 225-hp engine NC {һе test. The kit jobs (which consist of cams, two four-barrel carburetors and mani- folds) are true engineering enigmas. Theoretically, according to some of the dopesters, they should blow—but they don’t. At the Speed Trials at Daytona Beach one of these jobs which tossed a fan belt got through the traps one way at 136 mph, turning close to 7,000 rpm. This was a factory-sponsored car and -was disqualified by me, as were several other Chevrolets that topped 130, be- cause they all finished without fan belts. June, 1956 According to the rules—which are jus- tified—a car entering a Speed Trial must have all standard equipment oper- ating when it starts and when it stops. In an engine that turns as fast as the Chevrolet it is conceivable that the in- stant the fan belt came off, the engine would pick up as much as 15-25 horse- power—not exactly cricket for the other contestants if allowed. We are not going into the cause of why the fan belts came off the four fastest cars but suggest that | . heavier belts are in order for the future. - 87 [КЗ

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Nicely designed taillight flips down for access to gas tank. With truly phenomenal The eventual winner in the class was a Chevy owned and driven by Murray Hartley of Erie, Pa. He averaged 121.335 mph and his car kept its fan belt. An old pal of mine, and last year’s Daytona winner, Sheriff Jack Tapscott,’ was one of the entries I disqualified. Jack had a real tough break. \ Having heard before the runs got. under way that there was a good possibility of some fan belt throwing, my inspectors checked some of them at the end of their first run and before the start of their up- wind run of the measured mile. At the end of the first run, Jack, who had got- ten down the beach at just under 133 mph, still had his fan belt operating. Не told me later it. was in operation all through the second leg and only whipped loose when he got off the ac- celerator too fast at the end of the trap to come into the compound. If he had backed off easier he might have kept the belt on, in which case he would have been an easy winner as his time was close to 130 mph. However, as he reached the compound without a fan belt, I had no choice but to give his entry the axe. Some of the others I dis- qualified were, to put it quite mildly, extremely miffed but we ruled “equip- ment failure." After Speed Week I took a trip in my boat down to the Keys. When I re- turned almost a month later I phoned Jack and asked him about the chances of testing his hot tomato. All you - readers know about the regular Chev- 88 ME e. ONU сз 85 ge S tun - : DEERE: acceleration (zero to 60 mph in 8.9 sec.) taillights are all other motorists see. rolets that go backward and forward, like other cars, but not too many know about the real wildcats. Let’s face it, Chevrolet outsmarted the competition in bringing out a kit that was available on any model they build including the cheapest. You weren't forced to buy. a Daisyglotten Superheterodyne Leather-Cushioned Deluxe Dilly before you were allowed to buy their hottest engine. Chevy made them available even in the broom peddler's special which I consider to be a genuine stroke of sales genius. Chev- rolet made it possible for a guy who could get twó thousand dollars' credit to buy a car that would run the ears off a majority of sports cars and whiz by everything from a traffic light (and I mean everything) as though the compe- tition was running on four flat tires. The car that Tapscott drove is the standard 150 Chevrolet two-door with the 225 en- gine and gearshift. This means that Herman the Short Note Specialist can ' challenge the biggest guy in the saloon to а fast duel down the turnpike and few cars selling for even double the money will even keep his taillights in sight. When Jack showed up with the car, we first ran it on the beach and then headed for some hardtop stuff for true acceleration times. When you jump the accelerator on one of these crickets, even on a glue surface, the wheels spin around like a Waring Blendor and the moment you make contact you shoot m Mechanix Illustrated

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Chevy 150 lacks lush appointments of Bel Air but is available with the top engine. ahead—zoom! You blast up the road as if you had a barrel of nitro in the tail. Zero to 30 mph averages 3.2 seconds, zero to 60 mph 8.9 and in 12 seconds you're doing 70 mph. This is just about May, June and July faster than the Chevrolets of just two or three years ago. When these engines are put in the : new Corvettes, which are hardly light. - by sports car standards, in straight line running they'll get up close to 150 mph. This is phenomenal by any book wlien you consider that the Corvette weighs better than 2,600 pounds. .Recently, in races with hard corners and where torque is a deciding factor, the Ford, with a much larger displacement en- gine, has been giving these cars a hard time (as it can out-torque the Chevy) and has been whipping them quite con- sistently under these conditions. How- ever, down the turnpike or away from a red light, no car selling for under $3,000 can hold a candle to the Chevy. Where does it get all this speed and performance? . First, it is light in weight when put on the scale against its competitors. Second, it has the finest breathing engine ever built in America and a camshaft that is absolutely per- fect. These engines depend on high rpm for their performance, 6,200 and up. This would have most other American engines exploding if their valves hadn't started floating some 600 rpm earlier. Ed Cole, who designed this engine, deserves a [Continued on page 169] June, 1956 " Absolutely perfect camshaft” and a light valve train make this mill the greatest. SPECIFICATIONS MODEL TESTED: 1956 Chevrolet 150 two-door sedan ENGINE: V8 cylinder; bore 3.75 inches, stroke3.00 inches; maximum torque 270 foot pounds @ 3600 rpm; brake horsepower 225 @ 5200 rpm; compression ratio 9.25 to | DIMENSIONS: Wheelbase 115 inches; overall length 197.5 inches; tread 58 inches front, 58.9 rear; width 73.4 inches; height 60.5 inches; weight 3,155 pounds; standard tire size 6.70х15; gas tank 16 gals 2 PERFORMANCE: 0 to 30 mph, 3.2 seconds 0 to 50 mph, 6.5 seconds 0 to 60 mph, 8.9 seconds 0 to 70 mph, 12.0 seconds Top speed, 120 mph, plus plenty, depending on tune : Fine handling could be improved, in Tom's opinion, by stabilizer bar in íront end.

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gem The Chrysler 300B Due to its de-chroming and lack of gee-gaws the 300B is one of the handsomest and most IN FEBRUARY 1955, two Chrysler 300's made their debut at the Day- tona Beach Speed Trials and everyone who watched them perform agreed that it might be a long time before another full-sized sedan got over the beach so fast. These original 300's had automatic transmissions and made several runs of better than 139 mph, with a winning run of over 127. What would they do with a stick shift? The answer came a year later with the introduction of the new Chrysler 300B. The 300B has an even larger engine than the original 300 and boasts 40 more horsepower. This year they were equipped with manual transmissions. Incidentally, I would like to point out a ridiculous trend that only Detroit is 90 capable of producing. As all you boys and girls older than a medium-sized smelt know, automatic transmissions al- most since their introduction have been extra-cost equipment. Well, with the Chrysler 300B a manual shift now costs approximately 70 bucks more than one with the Chrysler pushbutton twirler. ` Ah, progress! Before the Speed Trials this year I got hold of Brewster Shaw's new 300B with stick drive. This particular car didn't feel quite sharp. It had very few miles on it so Shaw set about building these up. But on the day the Speed Trials be- came official, Shaw and Warren Koech- ling (who won last year) pulled a slight technical goof. Under the impression ~ that the engine would put out enough Mechanix Illustrated

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torque and power to swing the optional 3.07 rear axle, they shifted from the original 3.54 equipment and this was their undoing. The beach, though smooth, was heavy and there was a strong wind blowing from the north that had to be met head-on in the final run of the two-way average. Consequently, Shaw’s time was slower by almost a mile than last year’s winning time -and Koechling topped his last year’s winning time by less than two mph. But Tim Flock, driving another Chrysler 300B, broke the '55 record by 12 mph at a 139.373 average through better gearing Noted trunk-tester Jim McMichael has room aplenty in oversize cargo space. ' June, 1956 E ** 4 mastodon of muscle" is what Tom calls the powerhouse on wheels that broke the speed record at Daytona. By Tom McCahill

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Chrysler took full-page newspaper and magazine ads to celebrate its triumph. Let's get the record straight... ONLY ONE CAME IN FIRST AT DAYTONA BEACH CHRYSLER 300- Negerdiens of oll the dum узу moy Neve red or heord here ore the pews stech car er he Зборови teuh. At 1956 NASCAR Speed Week. Ooytene Beach lordo, the greot mem Су 300 c © WOM "FLYING MILE” . 139.373 ~>» EM Ли oheod of off ether cors! © WON 160 MILE GRAND NATIONAL STOCK CAR RACE Iet-sheod of off other cont © WON WOMEN'S NATIONAL SPEED TRIAL CHAMPIONSHIPS песама of oli other const Tha з the sesend weight yeer Омун han made o аков sw rep of these events anode Feat for Cheyster CHRYSLER 300-B ... america's most powertut car CHAYSLER DIVISION, CHRYSLER CORPORATION, 12200 LAST JIIFERSON AVDNUL. DITEOIT 31. MICHIGAN 92 Cars are bunched at the start of the Grand National at Daytona. At finish, Tim Flock in 300B is way, out in front, having averaged 90.836 for 152 miles. and a magnificently prepared engine and chassis. The Chrysler 300B stick shift was a disappointment to me. It gave a lot more snap, once in the gears, but the box was awkward and rough to operate. Slam-shifting was a strict gamble as the slots were as hard to enter as the Racquet & Tennis Club in a football suit. This cost Shaw the winning of the MECHANIX ILLUSTRATED Standing Start Mile a day or so later. Shaw made a magnificent start but in trying to power shift from first to second he missed the gate by a gnat's mustache, consuming perhaps two-tenths of a second, and he ‚ was beaten out of first place by a Dodge 500 by just 1/100th of a second! This gearshift also had a flimsy shift lever that instilled in the driver who was slam-shifting as much confidence as he'd have in trying to stop an elephant stampede with a spitball. It was not a smooth box but by the time you read this it'll probably be ironed out. As any automobile man smarter than a sloth must realize, the Chrysler 300's and 300B's were designed more or less as special-purpose vehicles right from their inception. The purpose was to build the fastest full-sized deluxe sedan ever conceived. With this car Chrysler put every sedan ever built, past or pres- ent, in the background from a perform- ance standpoint. Few sports cars can top the Chrysler 300B in a straight line - run. But in accomplishing this Chrys- ler had to sacrifice some smoothness of operation. These 300's are definitely not for a dowager duchess or an old maid school- teacher. In fact, they are not for the average man at all These cars are really for competition. Their two four-barrel carburetors, special mani- folding and camming make their idling and low speed performance definitely on the rough side. These are competition cars in a full Brooks Brothers suit, no matter how you approach them. They Mechanix Illustrated LI Ж)

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are available with air conditioning, ra- dios, phonographs, electric windows and all the plush accessories that no king ever had. But they nevertheless re- semble a wild. stallion, bridled and saddled. Many men with more virile leanings in their transportation are going for these cars as they know they are buying several indisputable advantages. First, due to its de-chroming and lack of gee- gaws, the 300B is one of the handsomest - and most expensive-looking cars on the road today. Its very appearance, even when parked, gives the impression that it is loaded with muscles, ready to spring into action the moment you flick the key. Tie this up with the fact that you know that no other sedan ever built can out- run you, and you have the perfect pride of possession that so many men desire. Never was there a better saloon talking- piece than the Chrysler 300B. When Whipsnead Sheehan juts out his puny chest to brag about his White Corpuscle Eight, the owner of a 300B can sear him like chicken feathers in a blast furnace with just a look. Automotive competition being what it is today, you can order almost any variation on an expensive car, provided : the order isn't too unreasonable and the dealer has enough influence with the factory to get it for you before you die of old age. With this thought in mind, here's how I'd personally order a Chrys- ler 300 ог а Chrysler New Yorker. Let's say we decide on the New Yorker, which has the same basic 354-cubic-inch engine as the 300B. Га order it with the solid valve lifters of the 300B, the 300 cam and a single four-barrel carbu- retor. With this combination I could stay with the Chrysler 300B up to well over 100 mph from a standstill, wheel turn for wheel turn, as my torque would be exactly the same. But at slower speeds around town I'd have a car as smooth as a vanilla*ice cream soda that has been standing in the sun for ten min- utes. If I wanted the 300B (remember this is my personal choice) I would tell them to remove the two four-barrel carbure- tors and manifold and give me the New Yorker [Continued on page 174] June, 1956 Not too terrific in getting underway, the 300B picks up fast in high speeds. SPECIFICATIONS MODEL TESTED: 1956 Chrysler 300B ENGINE: V8 cylinder, OHV; bore 3.94 inches, stroke 3.63 inches; maximum torque 385 foot pounds (9 32-3600 rpm; brake horsepower 340 (9 5200 rpm; compression ratio 9.0 to 1 DIMENSIONS: Wheelbase 126 inches; overall length 222.7 inches; tread 60.4 inches front, 59.6 rear; width 78.8 inches; height 59.4 inches; weight 4,145 pounds; standard tire size 15x8.00; gas tank 21.5 gals PERFORMANCE: 0 to 30 mph, 3.7 seconds 0 to 50 mph, 6.8 seconds 0 to 60 mph, 8.4 seconds 0 to 70 mph, 10.5 seconds Top speed, 140 mph, plus SPEEDOMETER ERROR: AN oo mph on speedometer, actual speed 58.1 mp Tom would prefer a single four-barrel carb for smooth low speed performance.

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Push-button box is located ‘on handlebars of the new German Victoria Swing motorcycle. PUSH-BUTTON 4 WIN 525 You can plunk $25 in the family bank account if you send in a sharp, glossy photo of an old-time car posed with {һе owner or a preity girl. Car can even be new—if it is unusual. Include a self-addressed envelope (just in case) with all the vital statistics about сат and owner to Pin-Up Editor, MECHANIX ILLUSTRATED, 67 West 44 St., N.Y. 36, N.Y. You may win that $25. American auto engineer, B. P. De Dube, hops aboard machine for a test run in Germany. MOTORCYCLE Latest German motorcycle features a ашы electronic gear changer. | Gress everything else these days, the new German Victoria Swing motor- cycle boasts a fully automatic push- button control for its four-gear trans- mission. Unlike the push-button system on the latest American cars, however, the Victoria’s works via electronics and makes extremely rapid gear shifting possible, according to the German man- ufacturer. ° Motorcycle is the only two-wheel vehicle ever made with the push-button gear box.

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Lightweight Jet Rocket Space Ship can be carried with ease by solar adventurer. Е space ship set among the younger generation will really soar when they see this seven-foot- long, two-seat jet rocket made of sturdy three-ply fiberboard. Easy to assemble, it can be obtained from the Honor House Products Corp., 35 Wilbur - St., Lynbrook, N. Y. Pretty neat, huh? * Streamlined craft has a hinged top which Instrument panel actually works and has a completely encloses crew inside the ship. blast off button and jet steering control. · “Moan the disintegrators and hang on to Astro-star map is must unless you want to your Yo-yos, men. Here come the Martians!” spend your life floating about in space. СО шушы; ELI EE feiert *» А

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4 BELLYWHOPPER BICYCLE, demonstrated by its Italian inventor, Piero Moscogiuri, can do 50 mph with minimum exertion, permits easy breathing and “the fullest use of all muscles.” CIGARETTE GLOW was sole illumination for this TV photo after being amplified by new Bendix Aviation electronic device, Lumicon. HOT TIRES trail clouds of burned-off rubber as test car hits turn at Ford Company's Arizona proving ground. The outrigger permits extra rolling for. tire and steering tests.

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JET SCREAM MUFFLER built for Republic Aviation reduces sound level of jet tests to that of normal auto traffic in the area. Unit is “portable.” less costly than earlier types. HEEL .REFLECTORS for night pedestrians who don’t know enough to use left side of road—and who wear their pants pretty short. Seen at a German shoe exhibition. ROLLI-TANKER, Goodyear’s answer to problems involved in storage and moving of liquids. It rolls, floats in water, takes a beating, can be towed by hand, car, tractor. SMILE GAUGE helps dentists fit false teeth to facial contour. Daddy, why is the lady smiling so hard if she’s going to lose all her teeth? Huh, Daddy? Why is she smiling— a B "

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iQ ROASTING CONTROL. Set dial plunge probe into the bird, shut oven door and forget it—gas will go off when it's done. Works on any kind of meat or fowl roast. URETHANE FOAMS, new DuPont material, can be used in myriad products from dish mops to dashboard crashpads foamed- in-place to eliminate separate cementing. CROSS-COUNTRY CARS built for new West German armed services have two-cylinder engines, four-wheel drive, five. synchro- nized forward gears, top speed of 60 mph. PUSHBUTTON WHEELCHAIR for paralytics does 6 mph, turns, reverses, slows down, has fingertip. controls. March-of-Dimes sub- sidized New York group that developed it.

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Once as numerous аз the buffalo, the whooping cranes how number 21, will probably follow URING the course of evolution many of the most interesting flying creatures have disappeared completely because of their inability to adapt them- selves to new conditions.. The ptero- dactyl, a flying reptile, disappeared with the other great swamp dwellers like the dinosaurs when their natural habitat disappeared and with it the food they couldn’t do without. The California condor, a large, ugly scavenger, is another victim of what the , naturalists call phylogenetic senility— the inability to change habits in order to avoid extinction. The condor lives on : dead meat; in any wilderness this exists in abundance but nowadays when any of the 60 remaining condors finds a nice ripe carcass it’s apt to be poisoned—not for him but for some four-footed preda- tor. ug Я The Everglades kite is in а similar jam. This small, hawk-like Floridian eats nothing but ampullaria snails. Drain- ing the mosquito-infested swamps has killed off most of-the snails and the kite population has dwindled to around 100 —which may be wiped out quickly if conservationists can’t maintain the am- pullaria. The heath hen, once common in New England and known as far South as the 100 Carolinas, was the victim of its own mixed-up sex life. By 1880 only a few hundred were left huddled together in the comparative safety of Martha’s Vine- yard in Massachusetts. Conservationists set up a sanctuary on the island and pro- hibited further hunting on the mainland. A series of bad forest fires and raids by cats and hawks polished off all but 100 hens by 1917. After that the heath hens’ friends noted with concern that the sur- vivors were hatching a disproportionate number of males. Not only that but the males were sterile! The coup de grace was delivered when the remaining fe- males decided not to have anything to do with the males, sterile or otherwise, and by 1933 the heath hen had disappeared. ` Some birds flourish in a country dom- inated by man—the crow, for instance. Not so the ivory-billed woodpecker, which once made its home deep in the southern swamp forests. Heavy logging drove the bird from one breeding area after another until the existence of this brilliantly colored character (the largest North American tree driller) has be- come a matter of conjecture. _ The bald eagle, inspiration of our national emblem, is found today in sig- nificant numbers in only two places: Florida and the Chesapeake Bay region. Mechanix Illustrated

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the heath hen and the passenger pigeon (right), both of which disappeared in this century. Fundamentally anti-social, the bald eagle (bald is a misnomer; the bird sports a full head of white feathers) has fled before the onslaught of settlers into the low lying coastal plains. Further- more the bird has been plagued by lum- berjacks cutting down the few trees sturdy enough to support the weight of its aeries which at times are composed of more than a ton of sticks and grass. There are fewer than 1,500 survivors at present. Pioneers crossing prairies encoun- tered great flights of stately white birds which “stood as tall as men.” Once com- mon over much of the great American plain, and reportedly as plentiful as the buffalo, the whooping crane’s end came with the draining and filling of the swampy prairie marshes that were his home. Whooping cranes can only be seen in two places today: on the Arkan- sas Wildlife Refuge on the coast of Texas and in a secret sanctuary somewhere north of the 60th parallel in Canada. Nothing has been spared in the effort to:save the whoopers which are now à matter of national concern. Thousands of dollars have been spent by the U. S. Fish and Wildlife Service and the Na- tional Audubon Society to maintain the Texas refuge; millions of words have June, 1956 been.written in an attempt to educate the public to the plight of the whooper; oil companies have called off million- dollar drilling operations fearing that the birds would be disturbed. The loca- tion of the Canadian breeding grounds is kept a state secret. In 1938 there were 18 cranes; by 1949 there were 37, but in the three years fol- lowing it dropped to 21. When the mi- gratory flock returned from Canada last year it brought with it three youngsters bred during the summer. The total was up to 24, but when the small band ar- rived in Texas this year, there were only’ 21 birds, all adults, meaning that the three young lost their lives or their way over the long flyway. : Once common over much of Texas - and Louisiana, the prairie chicken was nearly annihilated in an orgy of killing that sent tens of thousands of birds to their deaths. The prairie chicken might have survived in more significant num- ‘bers if it hadn't insisted on flying: in covies so thick that aiming wasn't nec- . essary. Ап average day's kill for a party of sportsmen often exceeded the bird's present population of 8,500. Between 1850 and 1920 the snowy ~ egret and the roseate spoonbill were hunted mercilessly for their plumes. The - 101 VADE NV x NS

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Trumpeter swan population was 50 in 1935; government protection has raised it to over 600. hunters can’t be blamed too harshly be- cause they used to get up to $50 an ounce Хог the feathers, which is good money for poor swamp dwellers. When ladies lost their taste for feathered hats the slaughter stopped—not before. This story has a happy ending: the egret and the spoonbill have both recovered and the former is now a tourist attraction in “Florida. Snowy egret staged a fine comeback after the price for its plumes dropped to nothing. A chain of events conspired to elimi- nate the passenger pigeon. It began with the deforestation (by lumbermen and fire) of much of the northwest in which the pigeon made its home. Stripped of its natural food supply the pigeon aroused the wrath of farmers by clean- ing out acres of freshly sown seed in afew seconds. Someone designed a net capable of catching over 3,000 of the birds at a time. To add to its many troubles the pigeon was a very slow breeder; it hatched only one egg at a time. In 1914 the last of the passenger pigeons died in the Cincinnati Zoological Gardens. The conservation-minded citizens oc- casionally enjoy a temporary victory. The trumpeter swan, once given up as lost, is making a strong comeback in Red Rocks Lake refuge in Yellowstone National Park. Down to less than 50 in 1935 the big birds have fought their way up to a 1954 total of over 600. — The principle agencies concerned with the preservation of rare birds in this country are the Fish and Wildlife Serv- ice of the U. S. Department of Interior and the National Audubon Society, a non-profit group of civic-minded indi- . viduals. Both groups maintain and staff wildlife sanctuaries, distribute educa- tional materials, engage in research and attend to the thousand and one details of aiding vanishing species in their struggle for survival. * Mechanix Illustrated 2

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9 Seven-way saw will do al- most any kind of cutting. Dreamed up a neat gadget? If you're ‘pretty keen. about that pet project of yours, get busy and work it out in your shop. Then send pictures and a descrip- lion of your invention to the Bright Ideas Editor, Mechanix Illustrated, 67 West 44 St, New York 36, N. Y. Each month the best entry gets a cash prize of $50. ЖЕЕ NEW 7-Way Square-Level-Saw set just introduced by Harnell Manufacturing Com- pany of New York is an ingenious time-saver for every do-it-yourselfer—Handy Andy and Freddie Fumbles alike. In a single precision tool are incorporated a dual level, an inside square, an outside square and an adjustable angle saw. It comes with three blades that will cut many materials including steel, wood, plas- tics, aluminum, frozen foods, plaster boards and panels of all types. The specially designed handle gives you a comfortable grip, complete protection for fingers and knuckles and allows the blade to be rotated to any cutting angle and held rigidly in place. * Below, left; showing how blade can be ro- tated to апу cutting angle. Versatile tool is a real bargain at modest price of $1.98. id BRIGHT IDEA ——— pd Top: level in handle can test ver- tical, too—just place back of blade against upright suríace. Below: handle and blade set. Below,the saw in use as a square marker, inside and outside , square. Maker is Harnell Co., 105 E. 16th St, New York 3, N. Y.

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HOW TO TEST YOUR Pressure on spinning edge of metal spool, not line itself, will prevent burnt thumb. One of the country's top anglers offers some timely tips on how to select your gear for bigger bites. By Roy H. Martin as told to George X. Sand STOOD in. the sporting goods store and watched the man walk from one counter to the next. He was trying to decide which type of reel he needed to go with a bait casting rod that he had at home. He finally selected a conventional level-wind model. Holding the reel in his left hand, he proceeded to “test” it by using his right thumb to spin the spool rapidly in the direction of what would have been the rod tip. Author Martin struggles with a giant sea bass, one of many world record catches. Familiar test to see how Жее reel will run is waste of time, says expert Martin. (А

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n “Seems to run. free, all right," he told the clerk. “PU take it." This man was wasting his time. The familiar spool spinning test is no test at all, regardless which way the spool may be spun, since a reel spool that spins too easily may actually be “heavy” and overrun when put to use, invariably causing backlashes to harass the owner. Not only that, the man in this case made another big mistake by not bring- ing along the rod with which he in- tended to use the new reel. It is prac- . tically impossible to balance a reel to a rod, and vice versa, without having both items assembled as they will be when in ` use. As one who holds more International Game Fish Association world angling records than any other man (seven at present) I have had ample opportunity to watch the costly mistakes of fellow fishermen who have not learned how to test their tackle properly before pur- chase and use. During the past decade, while I secured. my present world records (I have held as many as 22 at one time or [Continued on page 175] Poorly fiting waders will ruin a day's sport. Lift one knee: check for "binds." Rod's give or line's breaking strength can be determined with a simple spring scale. r

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Low-Cost Cooling -for Your Home | Properly installed, and of the right capacity, fans can cool your home at a fraction of the cost of an expensive air conditioner. Ву Lyman Gaylord Shown above and at right are ten typical. ventilating fan installations: (1) Under- > eaves discharge. (2) In dormer window with automatic shutter. (3) In hallway 106 Mechanix Illustrated

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4 з PS no need to look forward to a summer of sizzling hot days and sweaty sleepless nights. A properly rated ventilating fan can give you many of the comforts of air conditioning at a fraction of the cost of an air conditioner. And, in addition, by ridding your house of moisture-laden and grease-filled air, a good fan—be it window, attic or kitchen type—will help keep your home or apartment clean. For cooling, a ventilating fan works by pulling in cool night air through open windows, expelling hot, stuffy. air that would otherwise remain inside. This means that your home gets a cool start each morning, helping to keep down daytime temperatures. Homes with adequate ventilation, users report, can be as much as 20° cooler at night and 10° cooler in the day. A fan can also be used to circulate room air during either day or night, tending to make you more comfortable as you’re cooled by convectional air cur- rents. If you have decided to buy a ven- tilating fan, you'll find that you have a wide choice. There are over 90 manu- facturers of ventilating fans in the coun- try according to the trade journal, Elec- trical Merchandising. Last year, these firms sold over 2,000,000 units at an average retail price of $37 for kitchen units, to $131 for high capacity attic fans. A. good fan will give you relief from water vapor, air-borne grease, smoke, cooking ódors and hot air. What would you say if you heard that your néxt door neighbor carefully sprayed his house with almost a quarter of à ton of grease each year and in addition, sloshed enough water to fill a swimming pool over the walls, ceilings and floors? Probably you would declare that he was utterly insane. own home? Do you know that 400 pounds of cooking grease and over 2,000 gallons of water vapor are added to the air inside the average home in one year's time? If some escape hatch isn't provided for all that moisture and grease, it's going to cause trouble and expense. Water vapor, for instance, will permeate the walls and cause timber rot; in closets it speeds destructive mildew and rust. The grease will settle on walls, ceilings and furniture in a hard-to-clean, unpleasant smelling film which can discolor even the brightest paint job in a few weeks. There is, unfortunately, no way of knocking out this grease and moisture at the source unless you're willing to stop using the kitchen altogether and to stop breathing as well. In only 24 hours, ' one and a half gallons of moisture is contributed to the air by the breathing and perspiration of the average family of four. Ventilating fans are rated in terms of their capacity for moving masses of air. How much air they move is measured in cubic feet per minute (cfm). The fan's physical size is not necessarily a measure of its capacity although it is true that the larger the fan the greater is its capacity. Because ventilation depends upon continued exchanges of stale for fresh air, your selection should be based on how many air changes you require over a given period of time for adequate ven- tilation. Practice and experience show that for homes in the South where en- tire household ventilation is desired, there should be a complete air change every minute. For Northern home a change every minute and a half is gen- erally satisfactory. For spot ventilation - Drawings and installation photo- graphs courtesy of Lau Blower Co. 9 window. (4) Through attic wall. (5) In a basement. (6) In attached garage. (7) In a roof penthouse. (8) Attic suction box. (9) Vertical discharge. (10) Blocked siding. 107 But how about your .

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i First step in installing attic fan is to E locate carefully: then drill pilot hole. DAY-TME TEMPERATURES UNS Using pilot hole as base point, outline of shutter is marked off with a square. in kitchens, a complete change every two or three minutes is adequate and in bathrooms every two to five minutes will do. ; To select a properly rated fan you must determine the total cubic volume of the space you want to ventilate апа then pick a fan which is certified as having a rating high enough to deliver the required ~ cfm at normal static pressure. A six-room house in Michigan, for instance, will have about 10,000 cubic feet and will require a fan delivering 7,500 cfm for the recommended air change rate every minute and a half. In a kitchen of 900 cubic feet © you will need a fan rated at a minimum of 300 cfm and so on. Don’t let the matter of static pressure worry you, unless you plan on using very fine mesh window screens, specially designed exhaust louvers and grills, or have problems with shifting winds. Fan capacities are stated in terms of normally en- countered pressure. As is regrettably the case with most electrical appliances, there is more than one rating method followed by manufacturers of fans. You should check to see that the fan you select is rated accord- ing to the test standard of the National Association Drawings show temperatures in an unvented and vented house: air flow pattern: how to figure cubic content. Mechanix Illustrated S)

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à, To cut plaster, first score with chisel then saw with medium tooth keyhole saw. of Fan Manufacturers and the American Society of Heating and Ventilating Engineers. The code of the National Electrical Manufacturers’ Association (NEMA) which is used by some makers of ventilating fans is intended for cir- culating, not ventilating types and a unit rated at a given number of cfm will be over-rated by about 25%. Besides having a properly rated ca- With ceiling opening finished, unwanted sections of joists cre cut and removed. pacity, a good ventilating fan should operate as quietly as possible. Don’t, however, expect complete silence, as the rush of air through window screens and exhaust louvers in itself causes a certain amount of noise. The slower the fan the quieter it will operate, other things being equal. However, the slower the speed the lower the capacity.. In buy- ing a fan look for blades that are dur- Drawings show five fam types: two attic blowers; one window fan and two kitchen vents. FAN 1S MOUNTED FAN IS INSTALLED IN HOLE IN CEILING MOTOR SELF OPENING MOUNT IS SCREWED TO WINDOW FR r3 FAN CAN ROTATE 360° TO BLOW AIR IN OR OUT INTAKE VENT FROM | MOTOR IS MOUNTED DUCT CARRIES ODORS AND HEAT OUTSIDE THE HOUSE OUTSIDE THE HOUSE IN WATER PROOF HOOD INSTALLED HOUSING OVER THE STOVE MOTOR WITH DOUBLE ENDEO FAN — 109

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In ceiling installation, joists are cut to size: header framework supports fan. able and well-balanced. Out of balance blades will cause noise and may injure the motor and bearings. It should be constructed so that you can have easy access to the blades for cleaning and to lubrication points. There should be adequate guards on window fans to keep junior’s fingers out of the rotating blades. It should be certified to have high quality electrical components such as wires, plugs and terminal connec- tions. You may find that it is easier to buy a good window fan than a kitchen or attic fan because you can ask the dealer . for a home demonstration. (This is ob- viously impossible with the other types since they require a hole in a ceiling or ~ wall for installation.) ` Most of the bet- ter appliance dealers will be glad to help you in this matter but don't hesitate to ask. After all it's your money! It is mainly because of their easy mounting feature that window fans enjoy such popularity. Since all you have to do is prop them up in an open window they can be moved from room to room as the situation or your wife demands. The dual purpose design of many models is - another factor in the success of this type. Some are equipped with elec- . trically reversible motors; by switching polarity the direction of blade rotation is changed and the fan pulls in outside _air instead of expelling room air. The \ 110 Above: Fan in place on shock absorbing pads. lis own weight holds it in place. same thing, of course, can be accom- plished by simply turning the fan around in its mount, as is possible with some models. without electrical switch- ing features. Fan and mount can be turned in the case of less expensive jobs. Again, many newer models can be taken out of. the window and used on the floor, on a desk, or hung from a ceiling or wall bracket. While such versatile window fans are generally capable of ventilating up to two or three rooms, a more powerful fan is needed where four rooms or more are to be ventilated. Sufficient capacity is provided by an attic type fan mounted in an unfinished or finished attic space, in a garage wall or even in the basement as convenience and the architecture of your home may dictate. ‘Although a number of alternatives are possible, the same general layout is followed in all attic fan installations. There is, first of all, the air inlet into the house. This is provided by open win- dows or if you want to go to the expense, special inlets with air filters mounted in the walls. Next there is the fan itself which is mounted in some out of the way place where it isn’t seen. The fan will suck in fresh air through the windows ‘and expel it through exhaust openings in attic end walls, garage walls, under the eaves, or through dormer or base- ment windows. Since the fan is not Mechanix Illustrated

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Shutter is secured in place over ceiling opening with wood screws at each corner. mounted in the house proper some con- necting passage for the air must be pro- ' vided from room to fan chamber. is usually an opening cut through a wall or ceiling as the case may be. Installa- tion is a do-it-yourself type project re- quiring only a few tools and a minimum of know-how and time. Since windows are the primary air inlet all you have to do is provide a connecting inlet to the fan room, furnish exhaust openings of adequate size and mount the fan in place. The sizes of the various openings are important for proper operation and it's a good idea to carefully check with the manufacturer's instructions. Unless you want to get involved with a lot of ductwork, see to it that the con- necting passage opening is as close to the fan chamber as possible. In general the opening should be in a central location so that air will be drawn with equal speed from all parts of the house. Exhaust openings can be in a number of places. As a matter of fact it's better to have several since one or two will al- ways be in the lee of the wind and the fan won't have to buck any back pressure. А number of prefabricated louvers are available. Some of them are automatically controlled by the pressure of the air stream. They open when the fan goes on and close when the fan is switched off. There are other June, 1956 This: To complete job, fan is wired to terminal box with ВХ; canvas strip joins fan to frame. types that are operated by small motors on independent circuits. Whatever the type and wherever you put it, in an end wall, dormer window, eave, basement window or porch ceiling, make sure that it is big enough. Two basic types of fan mountings are possible. In one the fan discharges horizontally. This type can be mounted directly behind an exhaust louver in a wall or window. lf you plan to put one of the horizontal discharge types in the attic, it is important that the space be sufficiently air-tight to prevent outside air from being drawn in by the fan. If Before test run be sure some windows are open. Switch can be connected to timer.

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Lau 16 in. fan has 3 speeds; This attic fan is available American Blower exhaust fan 75 to 95 watts: moves 2210 cfm. іп knock-down form from the has pull chain on-off switch _ Нав finger guards in front, rear. Fan Kit Co. Memphis 4, Tenn. that opens outside shutter. this happens, the capacity of the unit will be reduced in - respect to the air in the house proper. In this event an easy-to-build suction box must be constructed. The box couples the fan to the ceiling opening and there is no capacity loss. Instructions for making suction boxes can be obtained from manufacturers of attic type fans. The second type of installation uses a vertical discharge fan which is mounted directly over the connecting passage. Air is blown into the attic space and vented through louvers as before. Neither type is secured directly to attic framing since a rigid mount will transmit vibrations from the fan to the wall and ceiling which in turn act as sounding boards. Attic fans should be shock mounted on springs or rubber cushions to damp out motor vibrations. If you have decided on using automatic louvers, check your local building codes to see if they require that a fusable Pedestal style Vornado 60Р lists for $130; ісп shroud tilts. NuTone 36-їп. hood over range connects McLean fan is designed for horizontal or costs $38.50; 42-in. size $59.50. vertical use: sizes to 42-in. available. e

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‘Typical squirrel cage blower. Motor mounts inside tHe cage. Product of Utility Fan Corp. link be placed in the louvers’ control mechanism. These links melt at about 135° in the event of fire, automatically closing the louvers and stopping any fire-spreading drafts. Once the grill work is in place, and the fan is mounted and connected to a conveniently located switch with BX cable, you’re ready to turn it on. Be sure to open some windows. Adequate inlets are important in basement in- stallations as the suction may create a reverse draft and extinguish the hot water heater or pilot lights. While an attic fan really does its stuff during warmer weather, when you can have lots of windows open, it can also be used during colder seasons for lim- : Trade Wind model 3501 kitchen fan mounts in cabinet: costs $107 without the hood. McLarty Handifan capacity is 450 сіп. Measures 9%2-їп. square: is priced at $15.95. ited venting. If you have used auto- matic louvers, the fan can-be switched on for brief periods to clear the air. Or, if you desire, it can be hooked up to an interval timer so that the fan will : automatically go on for one or two min- utes every quarter of an hour or so, giving some relief from stuffy air. Proper timing will hold heat loss through the-ceiling opening to a mini- mum. If you’re not concerned with ven- tilating the whole house but do want spot venting and cooling of the kitchen, the bathroom or home workshop, try one of the kitchen type ventilating fans. These small units with capacities of 1,000 cfm and [Continued on page 160] Kord dual window fan has two speeds with 2100 cfm top capacity. Price is $49.95. Diehl 20-in. window unit has electrically reversible, two speed motor. Moves 2800 cfm. М + * Aie: vi

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You can use a length of copper wire to match Aluminum, trellis is rust proof, needs no the tip of a transformer-type soldering maintenance; 2 ft. wide x 10 or 25 ft. long. gun for burning various designs into wood. Nichols Aluminum Co., Davenport, lowa. HOME And SHOP TIPS Fasten two alligator clips to metal plate, as shown at left, to make a handy tool for holding two wires together when soldering. WELL, STRING ME UP IF I CAN EVER HERE IT 15 —Oo0PS! NOW FIND THAT BALL OF STRING! I'M AT THE END OF MY ROPE! 114 Mechanix Illustrated aS v

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Protect eave troughs against leaves and You can make repairs to your screens in other debris with wire screening. Bend over seconds by dabbing the hole with nail polish. trough and attach with rust-resisting wire. Patch is effective and practically invisible. To protect labels on medicine botiles when pouring the liquid. cover the label with clear cellophane tape. Send Freddie Fumbles your idea of a good short-cut, time-saver or safety device in your work, whether it be in the home, shop, office or farm. Each tip accepted will be paid for at the rate of $10. Naturally we cannot acknowledge or return the ones we cannot use. However, all will be carefully read and evaluated. (Those which ` we can use in other departments of MI will be paid for at our regular rates.) Please send in your ideas on a post card. Address to: Freddie Fumbles, Mechanix Illustrated Magazine, 67 W. 44th St., New York 36, М. Y. _ ARE THERE ANY STRINGS Gor ATTACHED TO THIS GIMMICK2 PZ we MEME | ON A STRING.. SOME FUNNEL / = JIM SWANGER GREENWICH, OHIO June, 1956 115 Bia ads 2 SS Fe AN eee МА COD T EM

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Outdoor living is fun if you have the suitable furniture. Here are several plans for constructing your own, at a considerable saving. By Bill Hinden HEN those hot, stuffy summer days arrive, when having lunch or din- ner indoors becomes downright unbear- able, then it’s too late to wish for some nice, comfortable outdoor’ furniture. Wishing won't make it so; now is the time to plan and build for those hot summer months. The drawings on the following pages: show many. attractive units that can either be built separately or in combina- tion with each other. They were de- signed for comfort, relaxation and durability, and their simple construc- tion makes them an ideal project for the home craftsman. All pieces are built from California redwood, a soft, decay- resistant wood that can be left outdoors 116 in all weather, rain, shine, hail or snow. Cocktail Table According to your choice, either a round or rectangular cocktail table may be built from the plans. The circu- lar table top, 36 inches in diameter, consists of six 2-inch boards. The two center boards are 6x34-in., flanked on each side by a 6x32-in. board; the two outside planks are 5x25-in. They are: held together on the underside by two 2x3x19-in. cleats. Screw the cleats tem- porarily to the top and draw a 24-in. diameter circle’ оп the table. Remove the cleats and cut the individual top pieces on a band saw and sand the edges with the help of a disc sander. Mechanix Illustrated

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2 “NOTE: ROUND TABLE USES SAME LEGS ~ AS RECTANGULAR TABLE ṣN TABLE TOP 2"x 5-1/2" x36" PEE ROUND TABLE

2"x2"x 12"

- TOP FROM 2x8” 7*— screw stock 5 ` CLEATS 2REQD. 2°x%x3"x 19"

CLEATS 2 REQD. 2" XS" X19"

giu М CARRIAGE BOLTS 2 1/4" DIA. X 6" a 5 < ^ e"xA"x20" BOLT LEGS TO BEVEL ALL CORNERS -CLEATS 45° COCKTAIL TABLE 7 Re-assemble the boards and finish the edge with the sander until it is as round and smooth as possible. The four legs, as shown on the draw- ing, have a 45° þevel and attach to the cleats with a six-inch long carriage bolt: These bolts, as all other hardware, should be cadmium plated to resist rust.- The rectangular cocktail table, except for the top, follows the same construc- tion- procedure as the round table. After all surfaces are thoroughly through the center of each pair of legs. | sanded and sealed with a special filler” BACK BRACES | TETE-A- TETE 2"x3"x19-1/2" WEBBING MADE FROM NYLON PARACHUTE CORD STRUNG THRU 142" EYE-SCREWS б"

APART. 19-12. Е ee E : DRIVE BOLTS — LEGS SET AT 30° BACK 4REQD. _ 2% 4" x 22" CARRIAGE BOLTS

2"x4"x 60" REARLEGS ——— Ж ; (| -2"X4"XiB-M2" | 2 REQD. 3 TABLE LEGS. 2 ЕОР. 5 2"x4"X|" SET 30° pe. і WHEELS 2REQD. - 2"х 7" DIA. TABLE BATONS 2REQD. 3/4" X 1-1/2" x 1G"

AXLE 1" DOWEL _ INNER RAILS 2REQD. 2" x4"x 21-172" FRONT LEGS 2 ВЕОР. 117 2"х4'"х 20-1/2" -

Я ^ y" e Lc du E c tu A OR СУ ЧЫ СЛУЧАЕ НЕЧЕСИНЕ ' Карыды с=с

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California redwood needs no paint. may be left natural with the proper finish. Set will accommodate six to eight persons. called Cereseal, the desired finish, such as shellac or lacquer may be applied. Cleais are assembled to table top from the underside, countersinking all screws. Note carriage bolts attaching legs to ‘cleats. developments of redwood outdoor furni- ture. Actually it is a combination of two club chairs with a convenient center table fixed between them. The overall length of this piece is 72 inches, 64 inches Tete-A-Tete This unit is one of the more de luxe TABLE TOP CONSISTS OF FIVE 2"x6"-72"LONG BEVEL АШ. CORNERS BACK SLATS 2 REQD. CARRIAGE BOLTS BRACES 2 REQD. 2"x2"X 2" CLEATS 2 REQD. 2"x3"x 25" AG LEGS 4REQD. cw N 2"х4"х36" МОТЕ: TABLE LEG LOCATED 8" IN FROM TOPS EDGE, BENCH LEGS 5" FROM SEAT EDGE. BRACES 3REQD. 2"x 2" x 12" А т 2"х2"Х28" 3 REQD. Less впєар 7 2"х3"х18-1/2“ 9 pt 252 ДЕА о” CLEATS 3REQD. 20x 3" x 1" SAWBUCK SET 118 е ee m

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| | BACK SUPPORT Lawn chair is shown here painted, but may be left natural The modern design oí the arm rests make this an attractive unit. between the arms, and 32 inches wide. Construction is simple, all individual pieces attaching with carriage bolts. One novel feature is the use of nylon para- chute cord, slung through eyelets, sup- he a р В Ba REAR LEGS Y 3/4" X%3"%24-1/6" USE NO. 8 FLAT HEAD 2 REOD. WOOD SCREWS ЧЕГЕ И PEE Round the upper edges of the seat and back slais with a moulding head, mounted on a circular saw, or sand with fine sandpaper. porting the seat cushions. The wheels are seven inches in diameter and should be turned from solid stock. Place a washer on each side of the wheel and run a wooden cotter pin through the one- BACK SUPPORTS 3/4" X 2-172" X 18-5/8" 2 REQD. ARM RESTS 3/4"X 1-5/8"x i" ES CER REQD 55 = ARM SUPPORTS RI ы — — 3/4* X2-M2" X 18-5/8" = 2 REQD. 8-7/8" 19-12 FRONT & BACK RAILS 3/4" 19-172" SEAT & BACK SLATS 3/8" х 1-3/4" x 21» 15 REQD. FRONT LEGS aa X 2-1/47 15-178" г REOD. 119 beue

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TPM PAINE ПП The usefulness of the love seat is in- creased by its mobility. The unit can be easily moved around on its two wheels. _ inch dowel, acting as an axle, to hold the wheels. The cushions for this piece can be bought from most mail order houses; they should be cotton-filled and have at least a 10-ounce duck material covering. A plastic-coated material on the reverse side is suggested as a water repellant if the unit is left out on the lawn in all weather. Sawbuck Set A good-sized set, such as the one illustrated, comfortably seats from six to eight people. To assure a sturdy unit, all redwood lumber used, except for the backs of the benches, should be of two- inch stock. Each bench has two back slats, 1x3-in., and two 2x2 back supports, 30-in. long. The angle cut at the bottom of the back supports will depend on the angle of the legs and should be cut at the time of assembly. The top back slat is fastened two inches down from the top of the back supports; the second back slat should be at least three inches below the top slat. Get the proper angle of the crossed legs by drilling a J4-in. hole through the _ 120 Cadmium plated carriage bolts are inserted into the wood from the outside, so that the head will be visible, the nut hidden. top of each leg into the cleat. Make a triangle of the legs and then drill a hole through both legs half-way down. The same procedure is followed for the table legs. The table top кос of five 2x6x72- in. pieces, screwed into the cleats from the bottom. The corners of the table as well as the bench seat are beveled at a 45° angle. The bottom of the table and bench legs should also be slightly bev- . eled to prevent splintering when moving © the unit along a concrete surface. * Apply the same finishing coats as pre- viously mentioned, allowing a few days for drying before using the set. Lawn Chair Start construction by cutting all pieces to size on a circular saw. Lay out the dowel holes in the front legs, arm supports and back supports. Match the dowel hole positions carefully for joining the side rails and rear legs. Set your drill press table to a vertical posi- tion and clamp a board to the table so that its edge serves as a guide to drilling at the proper angles, and clamp the chair pieces in position. Drill the dowel holes Mechanix Illustrated 95

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ap * NOTE: 5-19^"& 3-39" CROSSBANDS . ARE REQUIRED FOR SEAT. CROSSBA 39"LONG 6 REQD. BACK REST RAIL 2"X4"x4l" A . ARMRESTS 2 REQD. 2"x4"xg24" SIDE RAILS 2 REQD. $e 2" х 4"x29* BEVEL CORNERS 45° | 1/4" DIA. X 7^ REAR LEGS 2 REQD. 2"X4"X18-1/2^ WHEELS 2REQD. N| D 2"X 7° 0iA.—77 AW ; > : КЧ 2* A EEG К Se К FRONT & REAR RAILS аа em \ (isthe AE LM ge 3 WOODEN б x x a"X3"Xx4 7 17 : CARRIAGE BOLT "A e 1/4" DIA. x 5^ de d 2 FRONT LEGS 2 REQD. 1 CLEVIS PINS 22 REQD. — 2% 4X 20-172" DRIVE BOLTS 5 ОРУ LOVE SEAT CROSSBAND : in the leg braces and glue dowels in place, using Weldwood or similar glue. Then, round the corners of the arm rests and back supports on a band saw or disc sander. : Lay out, drill and countersink all screw shank holes. Assemble the front legs, side rails and back supports with No. 8 flathead screws, as shown on the drawing. Reinforce all dowel joints with lo6-inch brads through each dowel and finish assembling the piece. Sand all surfaces thoroughly making sure that no rough edges remain. Finish in the usual manner. Additional coats of shellac or lacquer may be applied to the inside chair surfaces because of the greater wear of this piece. Love Seat This two-seater on wheels is not only very decorative but can also be easily moved around from place to place. Construction follows the same pro- _ cedure as the previously described units. 7 One feature of the love seat is its spring arrangement, obtained by the use of steel crossbands attached to helical June, 1956 springs. These bands are supported. by clevis pins, as shown. In assembling this unit, as well as all the others, insert all bolts from the outside, so that the head of the bolt will show, hiding the nut on the inside. Always use two washers, one under the bolt, one under the nut. The cushions may again be purchased in mail order houses, with the same weather-proof specifications as the ones used on the tete-a-tete. Circular Coffee Table | Construction of the top of this unit follows the same steps as the circular cocktail table, described earlier. After the individual top pieces are cut to the circular pattern, assemble them to the cleats with waterproof glue and screws, spacing the slats at not more than ¥gth of an inch apart. Assemble the unit and finish in the previously recommended manner. Lounge All pieces are layed out and cut on a circular saw. Lay out the handles on the side rails and cut on a band saw 121.

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Round off the hand grips with a file and | sand paper. Lay out the rear end of the rails and cut the kerf on a circular saw, _ making sure that the bottom of the saw cut does not go beyond the layout lines. Next, the dado grooves are cut to accom- modate the cushion support slats. Re- peat the same steps on the two back pieces and hinge them to the side rails. The slats are fitted into the grooves, with a spacer between each slat, and glued in ! place. Circular coffee table has rustic design. The eight-inch diameter wheels are Note Y6-in. space between table top boards. — laminated from pieces of %4-in. plywood, using waterproof glue between layers. When glue is dry, cut on band saw and sand edges. i Apply desired outdoor finish and in- stall the 3x24x72-in. canvas or plastic covered cushion. Attach the cushion to the top rail with straps or webbing to prevent its slipping down when the back Dado head on circular saw is used to make the lap joint for joining the two legs. ALL STOCK REDWOOD OR PINE ; TOP I-L4"X 5-1/2" STOCK - TIE STRIPS 2REQD. : 3/4"X 3" x 29-172" SECURE ТОР To ——7 TIE STRIPS WITH 2-M2"-10 ҒН. WOOD SCREWS i. DADO LEGS 5/8" DEEP — РОВ ГАР JOINT. 77/2" 7"DIA. WHEELS M > a USE WASHERS ee ee e A SIDES, SECURE WITH 1/4" : fi DOWEL THROUGH AXLE. CHAMFER ALL STOCK 3/89 x 45° 122 AS a)

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USE NO.8&10 FLAT HEAD WOOD SCREWS 20 REQO. ` END RAIL 1-1/4" X5"Xx24-1/2"7 7-1/4" * of the lounge is in an upright position. One last word on the finishing of out- door furniture. Articles which are to be exposed to the weather must be finished with extra care if they are going tolook welllater on. One way to insure this is to treat the wood with a good grade of wood preservative before ap- SLATS 3/4"X 2-1/2" x25-5/8* overs О м - | ave" eet be FRONT LEGS 2REQO. . o 1 c Д t Я 1-1/4 x 6”X 7-1/2" : SIDE RAILS 2 REQD. 1-i/4"x SX 86-172" Fare 2-172" Hei gm C SS 1 i" DIA. [——16-128"— BACK SUPPORT = ll WHEELS "DIA, 174" PLYWOOD STRETCER & REAR LEGS plying other finishes. It is especially im- portant to treat the parts that will be in contact with the ground, such as the legs of all tables and benches, as well as all other parts not covered by cushions and therefore exposed to the elements. Care at this stage will pay off later on in the longer life of the unit. ® Й The adjustable back of the lounge makes this а useful unit for reading or sunbathing. REAR LEGS 2 REQD. пиа" KEY Xx 7-8/8" LAMINATED FROM _

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1. One-piece molded plastic window flower box is weather-proof, won't dent crack or peel. Available in various gay colors. Manufacturers’ Names and Addresses 1. U. S. Rubber Co., Rockefeller Center, New York 20, N. Y.; 2. AH States Sales Co., 2623 Love Field Drive, Dallas 19, Tex.; 3. A. B. Chance Co., Centrallia, Mo.; 4. Kelsey, 1687 McDonald Ave., Brooklyn 30, N. Y.; 5. Downs & Co., 816 University Pl, Evanston, 111. ; 6. Iron Fireman Mfg. Co., 2800 S.E. 9th Ave., Portland, Ore.; 7. Corrado, Inc., 26 N. Clark St., Chicago 2, Ill. ; 8. Waldor Greenhouses, Salem, Mass.;: 9. Mall Tool Co., 7725 S. Chicago Ave., Chicago 19, Ill; 10. Garden Aids, Ine., Laurel Springs, N. J.; 11. General Scientific Equipment Co., 3011 Dix- well Ave., Hamden 14, Conn. 4. Prefabricated 3-foot sections of plastic covered steel fence are 14 inches high. Used for lawns, driveways, gardens, etc. 2. World Slide Sprayer develops 150 lbs. of pressure, weighs 2%; lbs. Nozzle adjusts to either a fine. mist or a 30-foot stream. 3. Tree-Feeding Auger designed to apply plant food to feeding roots of trees; bores a 2-inch diameter hole up to 36 inches deep. € 5. Weed puller for getting rid of Crab- crass, Plantain, Buckhorn, etc. Specially designed teeth slip into roots, remove weed. Д ti) []

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6. Moe Hoe, a combination tool for culti- vating. drilling, trimming and clipping. Unit can also be used for floor polishing. 8. All-dluminum prefabricated greenhouse stands 8x6 feet: it сап also be attached to the sides of any building if desired. 7. Flower holding shears. grip and hold stems while cutting them. Prevent soiling and tearing of clothes: rustproof finish. 9. The Vibratory Earth Borer makes a fer- tilizing hole without removing any soil. Unit has 5% hp engine, 7-ft. flexible shaft. 10. Gard'n Aid is used to transform clay soil into top soil by making the clay water receptive. For lawns, plants, trees, etc. 11. Aquaprobe determines the relative sub- soil moisture up to 14-in. below ground level. Gadget operates with help of batteries.

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To keep plant labels on young trees legible, slip them into a small bottle and tie bottle to the tree. Garden hotcaps are made from milk containers. Bottom is cut out and re- placed with plastic or cellophane. Cover freshly grafted nursery stock with plastic freezer bags. Besides keeping scions humid, bag protects grafts from birds. Mix a little lubricating oil into a bucket of clean sand. The sand scours. off diri and leaves a protective oil film on tools.

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Lawn Mower Cut Off Auto Horn M e Ме Button a eavy Ignition Wire Ground To Engine Young irees or shrubs are protected from rabbits, gophers, eic. with a basket of chicken wire, covered with vented paper bag. For a good garden marker, paste label on flat stick and thrust into ground. Cover label with glass tube, shown in photo. Milk container is handy for starting small plants; the wax covering seals in moisture.

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MECHANIX (LLUSTRATED. QOLDEM HAMMER uy an г к= еш E SETS pe enti TV-radio combination includes 15-in. coaxial speaker, record changer, TV and radio set. Cabinet is %-in. plywood with mitered corners. T. О. DuVall, Atlanta, Ga. Midget car has ја. galvanized pipe . frame with body brazed to it. All parts, including wheels, were made by W. K. Hart, Sherman, Texas. Engine is 2 hp Continental. Hydroplane is 20 feet long, has 8-foot beam. Supercharged Cadillac engine is said to give it a speed of 100 mph. Built by Phil Olson, South International Falls, Minn.

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The following craftsmen have been awarded GOLDEN HAMMER TIE BARS for their project: С. P. Stagner, Tulsa, Okla. . . . Ronald Levesque, Epping, N. Н. ... Otto Burkhart, Omaha, Neb. ... Bertrand Parker, San Diego, Cal. ... R. L. Anderson, Morris, Canada . . . Charles Bohannon, Salem, Ore. . . . С. J. Parsons, El Cajon, Cal... . В. W. Jones, North Highlands, Cal. ... Glenn N. Johnson, Larned, Kan. . .. Vince Bradley, Creston, Iowa . . . Earl E. Moffat, Sacramento, Cal. .... . William Sterner, Pittsburgh, Pa. ... Н. A. Speese, Roanoke, Va. . . . Hermann Miehle, Holmes, N. Y.... C. Smith, Brooklyn, N. Y... . Clifford C. Plumb, Ogden, Utah .. . Vecal P. Lager, Barrington, IL... Arthur D. Sollars, Gravity, lowa . . . Larry Wilson, Minneapolis, [Continued on page 181] Airplane is C.A.A. approved, has cruising speed of 160 mph: 100 hp engine, 20-foot wingspan, 19 ft lg. fabric covered steel fuselage. Dean Sackman, Beloit, Wisconsin. Each craftsman whose project is shown has received a 24 karat gold-plated Hammer and a Workbench Award Certificate. How about sending us a photo and full de- scription of your latest project?. If you aren't a winner, you may stil receive a 14 karat gold-plated Golden Hammer Tie Bar or MI’s Certificate Of Merit. Photographs of you and your workshop are also eligible for an award. Send entries to MEcHANIX ILLUSTRATED Golden.Hammer -Awards, 67 West 44th Street, New York 36, New York. If you want entries returned, please enclose: postage. House built in six months’ time by Harry Kasik, Montreal, Canada. Most of the meth- ods of construction for this 30x54 ft. home came from issues of Mechanix Illustrated. Twenty-five of these Golden Hammer Tie Bars are also awarded each month. Runabout made from MI plan B-224 cost about $100 to build. With its 7⁄2 hp out- board motor the boat planes with two peo- ple aboard. Linwood Giles, Boyerstown, Pa. Modern desk built from MI plans by Geo. Teresinski, St. Joseph, Mo. The unit is constructed. of fir plywood and completely covered with Formica for wear resistance.

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1. Hi-Fi speaker system uses а spherical enclosure for im- proved sound dispersion. Its 5. Easy-Fit arm rest cover is molded plastic, provides pro- tection for new- upholstery or conceals worn arm rest in car. plastic, has 18-in. diameter. New Products For more information write to: 1. Plastilex, Products Inc., 6515 North 10th St., Philadelphia 26, Pa.; 2. Anchor Metal Co., Inc., 244 Boerum St., Brooklyn 6, N. Y.; 3. Lee Tool Co., P.O. Box 12, Galesburg, Ill.; 4. Daycon Products Co,, 418 Sixth St., N.W., Washington 1, D. C.; 5. Eastman Chemical Products, Inc., Kingsport, Tenn.; 6.. Mahaf- fey's, Box 245, Artesia, Calif.; 7. Magna Power Tool Corp., Menlo Park, Calif.; 8. Globe American Corp., Merchandise Mart Plaza, Chicago 54, I1l.; 9. Stenso Lettering Co., Industrial Bldg., Baltimore 2, Md.; 10. Moen Valve Co., 6518 Ravenna Ave., Seattle 15, Wash.; 11. J & S Mfg. Co., 2645 S. State St., Chicago 16, Ill.; 12. Cellomatic Sales Corp., 186 N. Canon Drive, Beverly Hills, Calif.; 13. Cobra Metal Hose, Div. of DK Mfg. Co., 4640 W. 54 St., Chicago, Ill. 2. Sold in a plastic bottle, this 3. Attachment converts ordi- all-purpose. solder-flux paste nary table saw into a shaper is used to clean, flux and in a matter of minutes. Unit solder all common metals. fits 10 different saw models. 4. Sea-Spray, a new non-poisonous chemi- са] spray for cleaning ovens, is said to remove burned-on food and grease easily. 6. All-steel mechanical ro- 7. A new addition to the Magna bot is wound with a key and line of individual power tools sparks as it walks. The im- is this 6-inch belt sander. It's ported toy is 7 inches tall. used horizontally or vertically. n з й

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8. The Electropanel converts 220 v current to 110 v, permits housewives to use four appliances without danger of overloading. - 9. Stencil lettering guides come in Roman, Gothic and Old English letters, in sizes % to 215 in.; they сап be used many times. 10. New type mixing faucet has only one handle. With finger tip motion, you can mix hot and cold water at any pressure. 12. Cellomatic auto battery has replace- able cells. This arrangement allows user to change individual cells when they go bad. 11. Molded plastic garden pool has 48x48 in. overall dimensions, 12-in. deep. The drain- equipped pool holds 75 gallons of water. 13. Cobra flexible gas connectors allow you to move gas appliances away from walls and floors for easy cleaning and painting.

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STRIKE IT RICH The scintillator's sensitivity makes it superior to any Geiger counter. By Jim V. Cavaseno Т has long been the custom in. the electronic age to simplify any device after once it has been invented. ‘We have tried this with the scintillometer, an instrument used for the measuring of radioactivity. The unit described in this article has been designed for prospecting and' searching for ura- nium and has been simplified to the extent that its accuracy of readings is slightly off as compared to lab jobs, but its sensitivity is excellent for prospecting апа it compares favor- 132 ably with commercial instruments. We went prospecting around the southwestern part of .Colorado and though we didn't strike it rich, we had a good time and gained a wealth of ex- perience. Mainly we were able to de- termine just how good the instrument here described would be for a prospec- tor. We also took along some tools and test equipment so we were able to make changes in the design of {Һе scintillation counter as ways were found to improve it. This we did a few times while we were out there, and we now have, we believe, the best possible scintillometer for prospecting use. We found quite a few different species of rock containing uranium, but there are a lot of loose radio active rocks around Colorado’s mountains. The problem is to ‘trace them back to the place they came from, to find the so called mother lode. When you have done this, you'll never have to work again. There are many companies who will buy good claims, but never be hasty in selling. Get the best deal you can, but Mechanix Illustrated

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be sure you don’t sell out completely. Always keep a certain amount of stock for yourself so that if the claim develops into a well paying mine, you'll always get your cut. We were able to simplify the scintil- lometer by using a simpler circuit, and making the whole instrument lighter to в: FRONT PANEL T-CK722 T-cK 721 ( POT-3K WIRE WOUND (0-ADJUST) R-560 (2 REQ,D РОТ -10К WIRE WOUND (BIAS) BATTERY 67 1/2V TOGGLE SWITCH C-0.0! AT 600V

ij с-001 AT6000V 3 REQ,D VIBRATOR RED DOT (CATHODE TOWARD VIBRATOR) C-O. MF (SUPPLIED | WITH VIBRATOR) Н.У. SELENIUM RECTIFIER CHASSIS is s< 6 VOLT BIAS BATTERY 43/4" NS 11/2 VOLT FLASHLIGHT BATTERIES

carry. The last is very important, as anything you carry for long periods A seems to become much heavier. 2 Five different parts are required for a scintillation counter. 'The detector to pick up radio activity and convert it into electrical pulses; the counting circuit to amplify the pulses; a form of discrimina-

RANGE SWITCH R-20 MEG R-6.8MEG R-IOMEG R-2.2MEG ON-OFF SWITCH С-1ОМЕ AT 50У VI AND V2 TUBE 104 (2 REQ,D) 7 PIN SOCKET AND TUBE SHIELD — | R-390K 7 CR-IN64 R-47 MEG R-LSK po tl = TO PIN 2 41/2 or TUBE R-82K R-56K R-i5OK R-470K R-IK R-27K C-200 MMF C-100 MMF C-IOOMMF

INIATURE KEYED PLUG BUILD BATTERY BOX FROM SHEET METAL

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Last step in readying the counter is the adjusting of the zero conirol on the meter. tor circuit whose output voltage will be a measure of the frequency of the pulses being fed into it; a voltmeter circuit to measure the output of the discriminator, . and lastly, the voltage supplies for the various sections. We decided to build the detector into a probe unit for two reasons. First, it would be more useful that way since a smaller detector will fit into smaller cracks and holes, and being at the end ‘of a cable, it may be let down a cliff or other ‘inaccessible place without endan- gering yourself. Secondly, the main cabinet doesn’t need to be carried by hand. It can be fitted with straps for carrying on the shoulder. We used one strap around the shoulder and another around the waist; this way it isn’t loose enough to bounce around when you bend, walk or jump. The detector consists of a 6199 photo- multiplier tube, a sodium iodide crys- tal (thallium activated), one inch in diameter by % inch thick; nine 10 meg lo-watt resistors, one 20 meg 14-watt (these must be 5% or better) , three 220 mfd mica condensers (these are not crit- ical); the socket for the 6199 phototube . which is a standard TV picture tube _ socket, except that it has all twelve pin connections and is known as a duodecal socket, and a piece of three-wire shielded cable (not longer than ten feet). The counting circuit consists of a more or less standard multi-vibrator with the second tube biased to a point where it wil only oscillate when a pulse is fed o 134 The detector is built into a probe unit for greater mobility and ease of handling. to it, and will cease oscillating when the pulses fed to it are stopped. The ar- rangement of this circuit is such, that . when it starts oscillating, the amplitude . of the signal will be constant, regardless of the amplitude of the pulses being fed to it. However, the amplitude of the generated signal will vary if the fre- quency of the pulses being fed to it is changed. The lower frequency pulses fed. to it correspond to a higher ampli- tude generated signal. The signal from the generator is fed to the discriminator circuit, which is made up of the two 1N64 crystal diodes, the 4.7 meg resistor and .03 mfd condenser, and the 1500 ohm l5-watt resistor. The DC output of this circuit is then dependent on the frequency of the pulses being fed into the multivibrator circuit. The meter circuit is nothing more than a DC voltmeter, transistorized to in- crease the sensitivity of the meter. Voltage supplies for the various cir- cuits are batteries, except for the 1,000 volts required to operate the 6199 pho- totube; this is supplied by a vibrator high voltage supply circuit. It comes in two parts. The vibrator has a self contained autotransformer and is about four inches square by 1% inches thick, and is all wired for use. All that need be done is to connect in the two flash- light batteries and the switch. The high voltage selenium is about two inches long, J4-inch in diameter. Itis designed to handle up to 5,000 volts. The output of this circuit is about 2,000 to 4,000 volts, depending on the adjustment of Mechanix Illustrated e

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the vibrator points which are adjustable with a screwdriver. Six 10 meg 2-watt resistors are used to drop the voltage out of the selenium. The value of these are .001. These condensers will hold their charge for about five minutes after the vibrator has been shut off, and therefore, the instrument will still operate for that length of time. If larger condensers аге used, the charge may be held for a longer period of time. Of course, the quality of the condensers used will have a greater effect on the time they will hold- a charge than the value in mfds. The total cost of the parts for the HV supply is only a little less than the price of three 300-volt batteries which would be just as good, so one may wonder why we went to the bother of building our circuit. For one thing, it is much lighter to carry, and secondly, if we used bat- teries after they wore out, new ones BOLT A STRAP MINATURE SUPPORT TO EACH KEYED SOCKET END OF BOX X AMMETER 200 MICROAMPERS SELF TAPPING SHEET METAL. PULL FABRIC SHOULDER STRAP WITH A CLIPAT EACH END June, 1956 THE PROBE would be required at their high cost as compared to the 25 cents for the two flashlight batteries used in our circuit. Naturally, if one desires, he may use HV batteries and thereby simplify con- struction. . The main cabinet contains the meter and the four controls as shown in the photos. The sensitivity switch is on the upper left, meter zero adj. on the upper right hand corner, bias adjust on the lower right, and the on-off switch on thelowerleft. These controls are placed as close as possible to the meter to make sure they will clear the sides of the cab- inet, but re-check before you drill the holes. There is a second on-off switch on the side of the cabinet. This is for the HV circuit. As stated before, if we can turn off the vibrator and still leave the rest of the set on, it will continue to operate for about five minutes off the TURNED WOODEN THREE WIRE PLUG CLOSES SHIELDED CABLE THE END OF 20MEG,1/2W : RESISTOR SK (REQD) 220 MFD MICA CONDENSER (3 REQ,D) IO MEG, I/2W RESISTORS (9 REQD) CLAMP 6199 TUBE SOCKET (DUODECAL) ( 2 ACTIVATED) I"DIA.i/2" THICK WOOD SCREWS HOLD WOOD PLUGS TO TUBE TO THE BOX 5"X6"X9" STANDARD ALUMINUM BOX, OPEN 2 5 Gare. 122" F FRONT AND REAR LONG STEEL TUBE FOAM RUBBER RING CUSHIONS CRYSTAL TURNED WOODEN PLUG 4

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charged HV condensers. After this, the vibrator is again turned on for a few seconds to recharge the condensers. The batteries that operate it last about three hours running steady, and we found that VIBRATOR AY St SUPPLY _ VIBRATOR СОЇ Pe RATE METER CIRCUIT. they gave us'an average of about two days service in actual use. Start construction by obtaining a metal box large enough to hold all the components [Continued on page 162] SEA 7 PULSE AMPLIFIER COUNTER At AND DISC DISCRIMINATOR | CIRCUITS 560 I% 560 1% ALL RESISTORS MOUNTED ON SOCKET ARE 1/2W 5% 6199 PHOTOTUBE CIRCUIT (PROBE UNIT)

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к : Hose on acetylene welder lasts longer when coiled Il] and hung on a hook fitted over the cylinder neck. Hook is made from а 30-in. length of %-in. rod. Right: chicken water supply won't freeze if suspended and heated with an infrared lamp. To remove colored lettering from a flour or feed bag, shake it well pour kerosene on the lettering and roll up tight for a few days; then boil in lye water, rinse. This mail box can be moved for road work Use the method shown below when repeated or snow clearance. Channel iron is set into sharpening of a crosscut saw is required. a soil-filled, concrete-topped milk can. Make a cut about 4 in. deep in the stump. SHARPEN TWO-MAN SAW ON LOCATION BY INVERTING INTO SAWCUT MADE IN. STUMP 3 i i E ч SUPERI ORAL

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р look now, but that leak in your pocketbook probably is due to a series of holes in various parts of your car. Your money is steadily drip- ping away because you are paying for troubles caused by that great enemy of ear health—leakage. In those long black lines that darken concrete highways is a fortune in oil, To find out if windows leak, play hose at car. Have assistant inside to watch leakage. By Frederick C. Russell Member, Seciety of Automotive Engineers. grease and other fluids, lost from leaky cars. And that's only part of the story. Most of such leakage has no such obvi- ous source. Compression loss through leaking rings has no visible sign but it opens wider that pocketbook rupture through which your dollars disappear. You can't see an air leak in the short, flexible hose between the main fuel line Oil vapor from exhaust is easier detected if you hold white paper against ihe pipe. #

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and the fuel pump but it may tie up on the road with what amounts to vapor lock. But even the leakage that is apparent often isn’t easy to check. That bluish white smoke coming from the exhaust pipe means that oil is sucking into the cylinder combustion chambers, but you might not know that this is due to worn intake valve guides. Every time an in- take valve opens, the piston for that par- ticular cylinder sucks in a mixture from the intake. If the intake valve guide is worn, oil will be drawn from the valve compartment. Oil may also be going out the exhaust as smoke because oil pressure is too high. In this case, oil is tossed off the bearings and thrown to the cylinder walls in excessive amounts. Any such over-oiling has the same effect as oil leakage. The radiator overflow pipe is one of the things to watch when faced with the problem of coolant loss. It can play some strange tricks, but at the same time is a good clue to engine condition as well as any errors the owner makes in caring for his car. Coolant will go out the overflow if the lower hose collapses but it can also be lost through the owner over-filling the radiator when the engine is cold. Even with a pressure cap coolant will force open the cap’s valve if water flow is blocked off at the lower hose. The valve will also be forced open if not enough space has been allowed for ex- pansion when the coolant heats up. In one recent case the overflow pipe Loose crankcase bolts are tightened with an extension arm on the socket wrench. Rain drives through worn or loose antenna bushing. Check, and tighten it with pliers. Common point of leakage is door weather- stripping. Fix parts with rubber cement. To spot leak, dab clean engine with Gunk, an oil emulsifier, diluted with kerosene.

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Immediately after application: of Gunk, the engine is hosed down with cold water. was badly dented near its lower opening by a stone tossed up from the road. Expansion occurred, and when the water could not escape through the usual exit it forced open a radiator seam. Leaks often develop in the cooling sys- tem of trucks because their overflow pipe becomes clogged with dirt and mud. If you accidentally overfill a cold radi- ator be sure to check after the engine has thoroughly warmed up, because when expansion takes place quite a lot of coolant will syphon out. On a torrid day this would make a difference, espe- cially when caught in a traffic jam. If water does force the cap’s valve open, your tip-off is a peculiar sound under the hood like a muffled squeal—just mo- mentarily. One kind of leagage that is as disturb- Common sight on garage floor is oil stain. Check car immediately for leakage. Use socket wrench to tighten nuts around differential. Examine again after 100 miles. ing as it is unnecessary, is having the rear-end lubricant work past the rear axle bearings into the brakes. This hap- pens either because the rear axle hous- ing is overfilled or because the retainers are worn, or both. But don’t tear your hair if, after a new retainer is installed, you have the same trouble all over again. It is due to failure to soak the retainer in oil before installation—it must be soft and pliable or it won’t seal properly. ‘Fortunately we have some handy leak stoppers these days. It used to be heresy to use anything in the radiator to stop a leak. But today, in the best shops, they use a sealer when installing the winter's supply of anti-freeze. No less an authority on cooling system efficiency than the makers of Prestone were this spring offering a heavy duty sealer Seal hose: connections before installation. Always get surfaces as clean as possible. a

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Some slight leakage around crankcase is inevitable, but heavy stains mean trouble. which is said to leave a “metal hard” pro- tective coating over points of serious leakage. It is important that the various chemicals used in the cooling system be reasonably compatible with each other —a goal which makers of cooling system aids have achieved to a remarkable de- gree. We also have some special gasket forming materials to stop leakages which develop near the outside of the cooling system. Some years ago we were an- noyed because of a leak in a metal con- nection for our hot water heater. Mixing up a paste of powdered metal we applied this to the affected area and can report that after 60,000 miles of service it is still holding. One thing that helps in fight- ing any kind of leakage around the car is cleanliness. See how it works around Avoid serious oil loss at oil filter by applica- tion of sealing compound to filter cover. Heavy black stains around this differential should be given your immediate attention. radiator hose connections. If the metal is carefully cleaned and polished a new hose can be fitted without using a binder. Of course, if the metal cannot be polished because it is badly. corroded, or if there is any question about the hose fitting tightly, this is the right spot for an application of gasket forming ma- terial. The next most important factor in checking leakage is the following of the proper sequence when tightening the cylinder head. The order of tightening differs for various engines. Unless it is followed, the head may be warped and that means not only a chance of coolant loss inside or outside the engine, but combustion gas leakage as well. If gases escape into the cooling system you'll know it by the way water will be forced forward violently into the radiator top when the engine is accelerated. If the escape is external you'll hear a sharp canary-like whistle when you step on the accelerator. | Some very troublesome leakage spots have come into the picture in the past few years. Way on top of this new list is the cover of the oil filter which suffers from a too narrow area of contact with the filter shell, and also from a very nar- row gasket. Unless the gasket and cover are put back carefully all of the engine's oil may be lost at this point in a compara- tively short run. The problem has been neatly solved by the Permatex Com- pany which offers Form-a-Gasket, a sealing [Continued on page 156] 141

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The Amateur Telescope Maker's Page How to convert a pair of three-power war surplus telescopes into a twenty-power terrestrial telescope; cost, eight dollars. NE of the biggest optical bargains on the market is the war surplus M-70 three-power telescope. These telescopes were made for the government by Bell . and Howell, probably at a cost of $100 and are now available from the Edmund Scientific Corporation in Barrington, New Jersey for the low sum of $4 each. A pair of these instruments will enable you to make a very fine 20-power terres- trial telescope. So, the first thing to do is to nail down a pair of M-70’s. We need two of these scopes for the necessary parts. Next get a set of small screwdrivers. The U. S. Army put enough flatheaded screws, in- cluding headless ones, into these jobs to withstand heavy gun fire. And now with the two M-70’s on the work table let’s get busy. First remove the three screws in the center of the tube and unscrew the upper half (note

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Bonnie IL a lot of boat for its size, offers beveled even with the latter. Follow the exact same procedure to plank the bottom, placing flannel and glue along keel,.chine, stem and transom. It will be necessary, however, in the case of the bottom to put both short panels at the bow, as a 12-ft. length is too hard to manipulate into the stem. Put in the bow panels first, clamping the aft ends to keelson and chine, then working the forward ends gradually down to the stem. " You may have to use the hot towel many hours of pleasure for the builder. treatment on these pieces in order to ease them into the twist at the bow, but this is a very easy task. Simply heat a large pot of water over the kitchen stove until it is boiling. Place a big bath towel on top of the panel and slowly pour the boiling water over it, until you can feel the warmth with your hand on the - underside of the wood. Whip off the towel and push the end of the piece down toward the stem. You will be sur- prised at how much more yielding the heat treatment has made the plywood. After planking, hull is turned over. Projecting frames are sawed off as work continues.

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$ 40% 133HS 14315 1SVN М! Lid OL 30018 31114 GN31X3 м011938 ‚Өй, INOR муно 39018 31114 0402 ним ам@^^_ 3onsdS „л | МӨ, КЕРЕ МЕНН SEEK GNIDE: JNIBVN YE XOvul - С 1мО3дуй B/S 39309: MAE, - (008 32Пня5 i. AVAUS „РЕ E ‚чун1$ 32NOUB Versos BAEK SSL teak Ke D PERROS амо зое) = WOLLOB.NO MJdVi «dVWHlS 3ZNOUB .2/-!x.9/1 хэтч 3A089:3198/S..€ ISA 1 3 ас qq iN 1HOI3H JSVW TW1Ol s m) -:10,038 20): 1108. 3NIHOVW .b/1X, 2039078 839VdS | N3000M .b/€-UX LX; 22:02030 1: ОЗЫЇПОЗН 9 - „лох: ` 3019 Змїнү НИМ = цу IOS $уАМУО 0: DION eA ЖЛ] 9NIBV3H ONINOI1V 4135 JAXL 9NILNDONW- 39Nv 14 '; 3A00u9. 319NIS 9 $iuvd VLAN 31VOlJ8VJ 499 WISZLVW WONINNIY 350v 1138 Nt NOISN3L 150707 OL 3NI9N3 WINS € i138 = л .G2x.8/S ISN Z I4VHS 3NI9N3 NO IPS SALON HOWL ob A = ОЗЕР uu UE He MN ATA а А “BAYND 114 $1708. «NISH31Nn09' / .8/2- 4930 30 ЛИЛ ^ SiU0d vids .— ML LT 412.01 3HL9N33 ааз аила ino wlan 301$ Б ЗЕ МӘР ИУ : LAOIS MOV Id ae SOHVW .t/7I-LX.v/€ ^ “цо озн zi BIONY „гле SIIH INNON a 27 MOLOW Св "TTANVOOHVA Зміна 20 624.Ь/© X.8 мон ап 03110: 1NOU4 NIBVO x У 151мог NISV9. Ө оза ЛЛУ H210N- © злон змо Лон ОМІ Base 7 GdVMuca^ 3015 Нуз € ЖИКИЛ ОРИ ДЕДЕ ТЕРШЕ ДИСЕН) А Aine 413 OL ino /- ламу Maddn j б 4930 30 30/ISHAONN 114 OL 109 »— GOOMAId PASSE РЕТШ КЕ] D+ DOHVW .b/ амы во БЕККИ ТЕЛ УА Niv3s dCOMATd Е р TMOOQ SOOMATd 87€. Ssvud^ 18.4615 NOOQ ooa ns 4330 ,v/UX 8/1. | | | | I 39115 - dica. unm 031388V5 Siva

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A Briggs and Stratton 2/;-hp, air-cooled, single-cylinder engine, the same type used ex- tensively for lawn mowers, is used for auxiliary power. The 2:1, belt-driven reduction gear is made up of stock pulleys and bearings. Picture at right shows engine installed. When the panel has been forced to the stem put in several screws quickly to hold it. You now have it subdued and the rest is routine. The two long bottom panels will go on as easily as the side pieces. Space the screws at 2 in. on ‘centers along the keel and stem, 3 in. along the chine and transom, 4 in. on the frames. 3 Bevel the edges of the bottom plank- ing until they are flush with the sides and transom. Butt blocks may be put in at this time. In the original Bonnie leftover scraps of frame lumber were MOTOR BEDS 2" WHITE OAK HELD DOWN BY THRU BOLTS, EXACT ANGLE OF FACE SHOULD BE DETERMINED ON JOB ` CUT FOR SHAFT IF NEEDED used for this purpose, but still better would be pieces about 34x5 in. Set the butt. blocks in flannel and marine glue, fastening with double rows of screws spaced at 3-in. intervals. : Next, cover all screw heads with — Kuhl’s trowel cement and fill the seams along keel, stem and butt joints with elastic seam compound. Caulking is : unnecessary. Mark the waterline as shown in the plans, using a heavy pencil and a long batten, with a taut string rigged along the hull for a guide. Sand the bottom smooth and apply two coats ENGINE STRINGERS 2" 2"X 2" YELLOW PINE 36" LONG ENGINE MOUNT DETAIL

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LARGE-SCALE PLANS will greatly simplify construction. Send $5.00 to. MECHANIX ILLUSTRATED Plans Service, Fawcett Building, Fawcett Place, Greenwich, Conn. Specify Bonnie II Plan No. B-233. of copper bottom paint, red, green or bronze, coming just up to the waterline. The boat is now ready to be turned over and you will need to make a cradle for it to rest on. With the boat upright, installing the centerboard trunk is the next step. Cut off the frames and сгоѕѕріесеѕ extend- ing above the sheer at stations 3 and 4. Then cut away the frames and floor ` beams on each side of the centerboard slot to áccommodate the width of the ‘completed trunk. Next the trunk is completed as shown in the drawing. Be careful in shaping the bottom as it must fit flush on the keelson to be watertight. -. Also be sure to paint the inside of the trunk with four coats of bottom paint before it is assembled. Use 115-in. No. 10 screws to fasten the bed logs to the sides, driving them from plywood through mahogany. Then locate and bore holes though keel, keelson, and bed logs for the hold-down carriage bolts. Cut a gasket to fit over the slot and set it in a liberal quantity of marine glue. Put the trunk sides in position and ram down the end pieces. The forward post must stick up well above the top of the trunk so it can be tied into the cabin roof. Fasten the end pieces in “place ` from both sides of the trunk, using 11⁄4- in. No. 10 screws. Run the bed log bolts __ up through from the outside and tighten . with nuts and washers from the inside until the glue oozes out. You may now install the centerboard itself or leave it until later. You are now ready to add the decking. Cut off the remaining projecting frames at the sheer and plane down any edges until they are flush with the sheer. The 34-in. plywood deck beam gussets are = 148 now cut. At frames 1, 2, 5, and 6 they can be triangular in shape, extending about 8 inches down the frame sides and 8 inches along the deck beams. Frames 3 and 4 show inside the cabin so you'll want to cut their edges with a graceful curve. Clamp the gussets to the frame tops and fasten with 1%-їп. No. 10 screws. Тһе three full-length deck beams and the short side ones are all cut from a 12-ft. plank as shown in the . drawing. The beams are clamped one by one to the gussets, with their outer end butting against the frames, then screwed in place. Next, bend in the two longitudinals that form the main fore and aft support- ing members of the deck and cabin. Notch them into the deck beams and transom frame. They run continuous from station 1 to the transom and are fastened at each deck beam with one screw. Two other longitudinals are run under the fore deck on each side of what will be the hatch. These are notched into the breast hook and frames 1 and 2. The short side beams are notched into the main longitudinal and fastened with one screw at each joint. ` The mast pardner, not shown in the drawing, fits just aft of frame No. 2. It is a 3x3x8-in. block of mahogany. An opening, 319x412 inches, is cut out of the center to take the mast, allowing ample room for wedging when the mast ` is stepped. А small hatch opening is provided just forward of frame No. 1. Three sides are already formed and it is necessary only to fasten a crosspiece to provide the fourth. Place an upright brace under the center of the deck beam at frame No. 6, securing with screws to _ the floor beam. The covering is comprised of six sec- tions: two forward, one on each side and two aft. Three panels of %-in. ply- wood are used. To avoid waste, make paper patterns of the deck section before cutting the plywood. The plywood goes on quite easily and is fastened with 1-in. No. 8 flathead brass screws spaced about six inches apart. Butt blocks are placed under the side deck joints and 34-in. plywood filler pieces back up the joint in the fore deck. The same arrange- ment is used [Continued on page 168] Mechanix Illustrated 4

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6305 L33HS 3035. ININYN AINON ОМУ 1345 v9. SVANVO NI 934S 13s SMAHOS SSVYA Ому ЕДИ ДЕЧ INOIT НМ. HAHLA901 3800 6 53015. Ма/5%3 яко JLIHM «B/E 38007 S Nid aL LoD ПЕЕ Кә БАЕР РИ ВЕД ERIT RU MS RTT СА 3iv3d мозоопо т ‘ауз ан MOIR NI ХОВ; MEE 939; ШЕЕ ТӨТ; | WOSNVHI-^ БИКЕ ШЕЕ “X08 9NIJJQ1S. ANOD + ЗОН5 МОНІ MVS СЕ Еш 1 6мзЗнд5 9V1 1 MNONG. .8/€ 15824 « WOSNVBI. (ANVOOHVW 3Nidl3IHg) LINS OL 100 38 NVO 108 NMOHS SV xOuddV 304 МО алый 3zNoue ‘vid vb2 LJYH КЕЕДЕ өүү WOSNVMLC ds 13VHS 3113d0Ud. ноз К КЕРИ] i 3ZNOBB 91/6 БЕШЛИ dOlS КУЕ Rs : 49:1 79330,27 ЗУУ :SHdNvÓS. МООЛ NBA 2--,8/6-6. “ANVIOHVW. Se Nid He ‚8° 8. №012035 i MIA UE 91/9: [et N3llv8 ie С ыззно LSNvOV. Т6 113 O1 0313A38 S30l8 КОЗ v/e- PI he КЕ ШЫ: SMIYIS JNIHIVYW —- ete ШЕК OL 3dVHS —- ANVOOHVM - ЕДЕД BATE (BOUgWI ERI: Ума» 82 ,„2Х $1108 AY BOVINYVS „9 ЙБ рак ber BLS y 4 1 S3dISNI.WOH3. | ^ SINAYL 3O S3dls 0L (02 : $901 038" 10715 ма - LOAId~ ЕО (ANVOOHYW) i NIBVO. 30-3005 OI. GIANILNOD..€ X .. -1 AOOMAd ЗМНУЙ .b7¢ [ДЕРЕ ТЕ э _ E аоомула / ТЕШУ ы (51 73019 3NIBVN. NI 135 Lava. SVANVO NUUIVISNI H3lLdV 3dIS LOO ИОНУ BN "«9NILO3COHd. 340 WHL ANVSOHVMW VIERE X. ell. “$907 039 (90HVW):ON3 БАШКЫ ДГ: ,€X, SvNOLLdO LN3IWIOVLIV INVON3d 4V0'13V.SI 1VO8 33IHM VIIM 30 5 dOL NYHL Q3AON3M 3H AVW 82 “MNNUL НО NI 109 510715 NI 53015 | Nid тола, ЯО MOR SMOHS л\үїза | iS.LON зале мамо 1V Ye NOMOSS '90HVW ,v/S ЯМПН1 `8 О мя LOAId ‚2/1: 1015 W/EX 8/8, NOY L (ео ЕК ЕРЕ SESS REA

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Ist Prize ($25) .................Pirate Marge Baldwin, Trenton, N. J. used a Ciroflex Model C cam- era, Super XX film, £8 at 1/25, for this winning photograph. $10 Award .........Homewards Rollei. Agfa Isopan SS film, £8, 1/50 sec., yellow filter. By B. Bhansali, Bombay, India. " t

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$10 Award ..............................Évening Sun Taken by Stanley Wasylik, South River, N. J, with 4x5 Graphic, 1/50 sec. at #11. Please put your name, address and picture- taking data on back of each print. Wrap with cardboard stiffeners and enclose a self-ad- dressed stamped envelope or postage for re- turn of unused photos. Prize-winning pictures are not returned. Judges are MI Editors. Du- plicate prizes awarded in case of tie. Please address your entries to: Photo Contest, Mechanix Illustrated, 57 W. 44th St., N.Y.C.36 $10 Award ............................ The Last Flight А Kodak Brownie box camera was used by John Vergis, Tempe, Ariz., for this shot. 151

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о m | b. PHOTOGRAPHY TODAY 9 The Stereo Graphic 4 pum newest stereo camera to hit the market is so simple to operate that even an inexperienced novice can make ® The Sekonic Miniature Meter good shots with it. Two “variables” that Ў cause beginners trouble have been elim- inated on the Stereo Graphic. 5 e ; One, you don't have to focus this 4 oda t H >y і Ihe Kodak Retina, Ше camera—the lenses are fixed so that everything from about five feet to in- finity appears to be sharp. With the need to focus eliminated, the novice New stereo camera has lenses of unequal using the Stereo Graphic will get a focal length to produce sharper pictures.

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Sekonic miniature exposure meter is de- signed to fit shoe of all 35mm cameras. larger percentage of sharp pictures than he would with a variable focus camera. The camera uses a unique two-lens op- tical system. At widest aperture, one lens in the system is in focus from the foreground to approximately 30 feet, while the other lens is positioned for ob- jects from approximately 15 feet to in- finity. Two, there are just two shutter settings, I and B. The I, for instanta- neous shots is fixed at 1/50th of a sec- ond, which is adequate for the average snapshot. In test shots made of moving children and animals some movement was noticeable but not enough to be . objectionable. With the need to focus and adjust shutter speed eliminated this leaves just one variable for the beginner to cope with—the diaphragm. Апа even here, the manufacturer tries to make it easy for the beginner—if Kodachrome is used. Here's why. On the indicator showing the “f” stop, various weather conditions are marked. Cloudy and f-4 . are combined; hazy and #-5.6; bright and f-8; brilliant and f-11, and f-16 the smallest opening, has no weather condi- tion marked on it. Evidently Graflex made a survey and found Kodachrome , to be the most widely used type of color ` film. But what if you’re using the new, fast Ektachrome or Anscochrome. Or how about flash? Then you ignore the marked weather settings and just use the "f" numbers, following the exposure guide that is included with the camera. One side of the guide shows exposures for all popular color films when used Éastman's newest baby. Retina Шс has builtin nearly everything, except a tripod. outdoors and the other chart exposures for use with flash. In making tests the exposures given on the charts were fol- lowed to the letter and were found to be rather accurate. Most of the exposures were right on the nose, but a few were slightly over or under-exposed but still acceptable. : The diaphragm on the Stereo Graphic differs somewhat from those found on most cameras today. It does not have an iris that can be closed from the largest to the smallest opening in one continuous movement. Instead, it takes a page out of the oldtime photographers' notebook and’ uses Waterhouse stops. These are holes the exact size of a given opening punched in metal On this camera they range from #-4 to f-16. It is because of this particular type of diaphragm setting that the instruction booklet stresses several times, Do Not Set the Exposure Dial Between Stops. Should this be done the film would not . be exposed when the shutter was re-. leased because a solid piece of metal would be between the lens and the film. Having Waterhouse stops makes the camera no less desirable just as long as the exposure dial is not set between stops. Loading the camera is a simple oper- ation. A single twist of the lock lever on the bottom of the camera enables you to lift the back off. The standard 35mm film cartridge is placed in position after the film is threaded onto the take-up spool, making sure both sprockets en- gage the film perforations. Then the back is again placed in position and locked. [Continued on page 184] 153.

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Press camera neck strap has swivel hooks attached, clips to aluminum or stainless steel brackets screwed to case as shown. Right: a conical stone, mounted in a hand grinder, is used to grind permanent iden- tification into a photo chemical bottle. Stacking your slides is easy if you notch each in what will be the top right corner when properly positioned in the projector. frameld ferrotype plates can be cleaned with high grade automobile cleaner. Don’t use an all-purpose type loaded with wax. -

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NOW IT’S HERE! THE MAGNIFICENT NEW Cine-Kodak K-100 Turret Camera Truly a 16mm camera built to perfection— not to price! The K-100’s turret accepts your choice of any three great Kodak Cine Ektar Lenses, 15 to 152mm, without optical interference. When you click the turret to shift from the standard lens to a wide-angle or telephoto lens, the matching viewfinder automatically clicks into correct position. Luxury features? The K-100 is packed with them. Accepts single- or double-per- forated roll film—gives you an unequaled 40-foot film run from each winding of its powerful spring-driven motor. Full speed range from single-frame exposures to slow motion . . . built-in exposure guide . . . pre- cision footage meters to tell you exactly Prices include Federal Tax and are subject to change without notice Eastman Kodak Company, Rochester 4, N. Y. how much film can be exposed before re- winding, how much unexposed film remains on the roll. Provision for hand crank (for producing ‘multiple exposures, dissolves, special effects), and for attaching electric- motor drive. K-100 Turret Camera with superb Ektar II 25mm Lens and matching viewfinder, from $315. See it soon! Ask your dealer to show you the other 16mm and 8mm cam- eras in Kodak's famous family of movie-makers. Prices begin as low as $29.95! Ask about small down payment, easy terms odia —TRADE-MARK When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED

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2 Are You Driving A Dripper? _ [Continued from page 141] compound that can be applied to the cover. Another troublesome area is around the automatic transmission or torque con- verter units where loss of oil has a very serious effect on the car's behavior. It costs real money these days to replace gaskets at such leak points only to have the fluid loss continue. And it is unneces- sary asitis costly. So better remind your mechanic to apply gasket forming material to both sides of the torque converter gasket, as well as around any other parts where there's a chance of leakage. We're using a lot of external lights on cars these days; this means more trouble from rain and dampness. Look around your car next chance you get and you'll see a number of such joints between sheet metal where a bit of suitable protection will pay real dividends. ' І there is a punctured diaphragm іп the vacuum booster of a dual-type fuel pump _ the windshield wipers will slow down when the engine is accelerated. But there will be three more clues. For one thing the engine will idle roughly because the mix- ture is being leaned out too much. With this will go greatly increased oil consump- tion. Finally, there will be some oil around the top of the fuel pump. An old trick is to put newspapers under the car when garaging it for the night in ' order to have evidence of leakage, not only as to location but also as to quantity. But we must be prepared to be fooled a bit as to exact source of the trouble. Oil coming down from the overhead valve compart- ment may be sprayed by the fan to some other unit of the engine. Or, the oil will find a devious path down to the ground over a dirty, greasy engine block. Keeping the engine clean certainly helps when coping with the leakage problem. > Just for the record, remember that much > leakage is caused by over-tightening. If you pull down the valve cover nuts too much the cover will buckle, and no amount of fussing with the gasket will help the situa- tion. Oil that leaks into the distributor housing usually indicates that the crank- case vents are clogged. Pressure builds up within the case to a point where oil is forced out through any possible avenue of escape. 156 ~ One of these is around a slightly worn dis- tributor shaft. Another is out of the oil filler pipe itself; the pipe is only pressed into the crankcase and can be withdrawn for clean- ing. Leakage in the hydraulic braking system is a story in itself, but the main points to watch are the individual wheel cylinders as well as the master cylinder. Scored cylinders and worn or rotted rubber cups are certain to start trouble. When inspect- ` ing the wheel cylinders externally always pull back the rubber protective covers; this will often reveal a small leak that will later turn into a humdinger. When there is a spongy feeling to the brake pedal, or it goes down to the floor, there's a good chance of air being in the braking system. It can be due to incorrect adjustment of the piston rod which con- nects with the brake pedal. Interior fluid is a common cause of brake trouble leading eventually to leakage. Here's a handy test for master cylinder leakage: press lightly on the brake pedal. If the pedal goes to the floor. slowly, look for trouble in the master cylinder's valves, or for a leak past its primary cup. Don't press hard on the pedal because the effect of this will be to seal the valves as well as the cup. It'sa tip-off to pump on the pedal hard if there's ever any hint that the brakes are not holding. Brake failure because of no fluid left in the reservoir is the penalty for not paying attention to warnings of fluid leakage. There should be a vent in the rear axle: housing to relieve pressure and thus to help prevent lube from leaking into the rear brakes. Where there is an enclosed propeller shaft it is important to prevent lube from leaking from the transmission and running down the torque tube to over- fill the rear axle housing. Watch for that well-known leakage past the rear main mo- tor bearing and its retainer into the clutch housing. Lube can also work into ше clutch from the transmission. But with that drain on your packetiook as a reminder of the need for action let’s hope a little plugging with these facts about leakage will save you some of those hard- earned dollars. ° ‹ June, 1956 e

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i» For your Ford – always specify the brake linings with the IRON GRIP "Genuine Ford Brake Linings prove they can keep their iron grip in 3,250 torture tests," says Al Esper, Ford's Chief Test Driver. “In tests like these, inferior brake linings fade. But Ford linings beat the . heat and go on to pass repeated 80 m.p.h. emergency stop tests without a falter!” ` Like these brake linings, all Genuine Ford Parts must pass severe torture tests Whena replacement will add to your Ford's performance— such as water pumps, shock absorbers, distributor points — make sure it's a Genuine Ford Part. z It will help your car run “like new” because it’s built ‚ {о the specifications set when your car was brand new. You can count on long, dependable service, too, for all Genuine Ford Parts must pass grueling endurance tests before they are accepted for manufacture. That’s why you should always specify : Genuine Ford Parts. They’re made right to fit right to last longer in your Ford. May is National Safety Month—be sure you can see, steer, stop safely. VT AP RS Keep your Ford all Ford When "Answering Advertisements, Please Mention MECHANIX ILLUSTRATED рса \

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24% more road horsepower—for hill climb! Champion introduces a great new spark plug 24% more road horsepower—for passing! Tests prove new Champions give big power boost to cars that have gone about 10,000 miles without a spark plug change. If you haven't changed your plugs recently, put in new Champions—and feel the difference immediately ! You just can't imagine what a. difference new 5-rib Champions can make in your car’s actual road horsepower. But this difference has been proved— without a shadow of a doubt—in tests con- ducted by one of the country’s largest inde- pendent research centers. Regular passenger ears whose plugs had gone roughly 10,000 miles were tested first with their regular plugs; then with new Champions, Nothing about these cars was фана except their spark plugs. Yet there was an immediate increase in their road horsepower —the real power actually delivered at the rear wheels! Some of the results were spectacular. . ` For example, a 1955 six-cylinder car whose plugs had gone 10,000 miles actually showed a gain of 72.5% in road horsepower! A 1954 ^'V-8, whose plugs had gone 12,000 miles, got a boost of 53.5%. Some cars, of course, showed smaller gains; 20% in the case of one 1955 V-8 and only 6.5% (the smallest gain) in another. But the average road horse- power gain for all cars tested was a Paes over 24%! And what'/a difference these new plugs ean make in your car's starting! Tests show Champions reduced starting time by as much as 7195—with. an average of 39% for all cars tested! If you haven't changed plugs recently, it's high time to install new Champions. What- ever your car, these great new plugs give you more actual road horsepower— immediately! .

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24% тоге road horsepower—for the straightaway! -it can increase road horsepower by 24%! SEE HOW MUCH BETTER AND LONGER NEW CHAMPIONS STAND UP IN TODAY’S HIGH-POWER ENGINES ORDINARY ELECTRODE POWERFIRE ELECTRODE New Powerfire electrode makes the difference! Both of these spark plugs have been subjected to identical use in a modern high-compression engine. You can see the old style electrode (left) is badly pitted and burned away. Plugs like that in your car often misfire . . . waste power and gas. Champion’s new Powerfire electrode (right) is still able to give many more miles of powerful, EOOIS ORL Eat SS economical performance. 159

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"dà

Ў З LIFETIME PROTECTION— YET IT'S ONLY MINUTES FROM PARTS TO FINISH WITH HONMESHIELD' easy-to-make SCOCREEN KITS Маке your work shop pay off! Assemble these main- tenance-free: aluminum window screens for your home, cabin, or shop and save money...make ’em for дорога) apartment houses or businesses, and ake money! It’s a simple assembly job that requires no special tools. : No more repairing or repainting! Replace heavy, old- type screens or screen your new home with sparkling omeshield screens that'll dress up your home for life. Eliminates rust and stained walls. Lightweight—install or remove in a jiffy. No ladders needed. Kits ore complete with sturdy aluminum frames, easy- to-handle Fiberglas® screening, corner locks, installa- tion hardware — even a miter box. Sizes for full screens and sliding half screens (and storm sash, too!) Ask your department store, hardware or lumber yard dealer, or mail coupon for folder and name of nearest Homeshield distributor.

ERE Узе а

` AMERICAN SCREEN PRODUCTS. CO. Dept. MIK-6, 807 N.W. 20th Street, Miami, Florida

State... 2 Tr Make $5.00 an Hour CASH PROFIT The Day You Start! Start Your Own Business — 1 ee 16 at Home... Sharpen ZR ГОТ! Household, Garden and 5 = =< Shop Tools in Spare Time Turn your spare time into Big Cash Profits with the new Belsaw Sharp- All. No experience needed to sharpen knives, scissors, shears, ice skates, mower blades, hedge trimmers, axes, chisels and circular Saws ... just about any household, garden and shop tool. Your own CASH business. No inventory... no calls to make Learn how easily you can start your own spare time business. Amaz- ing low cost easy-payment plan. Send postcard for - FREE BOOK i BELSAW SHARP-ALL CO., 7186 Field Bldg., Kansas City. 11, Mo.

v $ Cooling For Your Home [Continued from page 113]. INSTRUMENT TO KEEP AIR TIGHT BOX AT- INSTRUMENT TO MEASURE .ОО"ЅТАТІС PRESSURE AIR DELIVERY TO BOX .

TEST FAN Drawing shows test setup used by NAFM. cost less than the central systems but if properly installed and used, will do just as good a job for one room as the big units do for the whole house. Й As is the case with attic fans, there are a number of alternate installations possible. For the most efficient opera- tion, the fan inlet should be located as close to the kitchen range as possible so that grease-laden vapors can be trapped before they have a chance to spread. In addition the inlet should be so placed that fresh air will sweep across the en- tire kitchen. An open window next to the inlet opening will cut down on the fan’s air handling capacity. Apart from ` "these two general considerations, any installation method will do that fits the architecture of the house and the dispo- sition of the owner. Since there are two general types of kitchen vent fans, wall mounting and : ceiling mounting, almost any kitchen [Continued on page 179]

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Look! Router At Work - + - Those of you who have never used a router need only see one at work to be fascinated . . . need only try one to want it for your own shop. The router shown here, cutting a decorative edge, is Stanleys No. H15. Its V4 hp Stanley-built motor powers a wide variety of bits at a smooth cutting 27,000 rpm. For heavier duty we recommend the 1⁄2 hp Stanley H45 Router. E Look Again! it’s A Shaper Now it’s a shaper! TheStanley Router converts to a use- ful shaper when mounted on your work bench as above, using the special shaper adapter kit. Same router motor powers shaper. With H15 Router use Kit H127 æ ... Kit H26 if you have H45. You'll want a variety of bits for your router. This H27 Assortment of ‘‘Hi-Hone”’ bits gives you 6 of the most popular. Your dealer has a full selection of Stanley bits and cutters for router and shaper. Start with the H27 pack and add as you need. . Stanley Routers are on display at your favorite hardware store or building supply dealer’s. Ask for a demonstration. For further details send for Catalog 400. Write Stanley Electric Tools, 966 Myrtle St., New Britain, Connecticut. М 161. 3 T = А

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Strike It Rich [Continued from page 136] - (ours is 9x5x6), and cut and drill all the - holes for the meter and controls. Also, cut and shape a metal shelf to hold the tubes and wiring for the counter circuit. This is attached to the front panel and held there by the nuts that also hold the on-off switch and bias control, and is installed so that the shelf is just under the meter. The tubes are mounted toward the rear of the shelf leaving enough room for the meter depth. The HV vibrator supply and the four flashlight batteries are mounted below, and: the 6744-volt battery and the 6-volt bias battery are mounted on a second shelf in the cabinet about. one inch below the shelf mounted on the front panel. This will al- low a certain amount of shielding from the vibrator below. Battery holders should be used for the flashlight cells and the bias cell so that in changing you just remove the old and snap in a new one. If you solder them, it will be hard to replace them “іп the field since you will also have to solder in new ones when replacing. The cabinet has the top as well as the bottom . removable. Having installed the shelves and controls (don't mount the meter yet as it may be ^ damaged in knocking around the panel while you wire it up), proceed to wire up the counter circuit and tubes. Mount the detector connecting cable jack on the cab- inet and then wire up the HV circuit. Install the battery holders and vibrator in the bottom part of the cabinet, mounting - all the components on terminallugs. Wire up the meter circuit, this is done by mount- ing a terminal board with five terminal lugs directly on the meter, using the meter connecting screws to hold the terminal board to it. Also mount the transistors and other components on this board. The zero pot and range switch are mounted on the front panel. The terminal board - should be cut small enough to fit through the hole that has been cut for the meter so that if you wish to check this circuit you may remove the meter together with the terminal board and all the components. After completing these circuits, test them to be sure they are working properly. This . is done by connecting the necessary bat- — teries and adjusting the zero pot for a mid- 16 scale reading оп the meter. Next, adjust the bias control RC1 for maximum nega- tive bias on the grid of the V2, thus causing the counter to stop oscillating, and read- just the zero pot so it reads a little more than zero. Also check to be sure that you can swing the needle through zero with the zero pot. Now, adjust the bias pot slowly until the meter reads full, and slowly ad- just it back to the exact point where the meter jumps back to a near zero reading. If it only jumps back to a half-scale reading use the zero pot to bring the needle down a little more to a near zero reading. Don't try to bring the needle down to zero with the bias control as this will reduce the sen- sitivity. The correct setting of this control is the point where the needle just jumps back to a low reading, after which it should not be moved except when required by the weakness of the batteries. After setting up, test the set by touching the finger to the input condenser lead. This should cause the meter to read since the body always has a small AC charge which is.enough in this case to start the set work- ing. If a square wave generator is available you can further check the instrument for sensitivity and calibration as follows. Set up the counter as explained above and feed into a signal of about 30 cycles. This should cause the meter to read about full on the No. 1 position of the range switch. Now, turn the generator output down. The meter should now return to zero. If it doesn't, try removing the generator output lead from the counter circuit and note if the meter now returns to zero. Some genera- tors cannot be turned down completely and there is always a small signal across the output cable, which in some cases is enough to start the counter and cause the meter to read. Now, with the generator connected and the meter showing a reading, adjust the signal generator to give a full reading on the meter by varying the frequency; varying the signal generator output con- trol should not have any effect on the meter reading. After adjusting the signal gener- ator frequency to the exact point that gives a full scale reading turn the range switch to the next higher counting range and June, 1956

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Strike It Rich check it in the same manner, noting at what frequency you get a full reading. The fre- quency is equivalent to counts per second, which can be converted to counts per min- ute by multiplying by sixty. The. circuit has been designed to read full at approxi- mately 2,000 cpm on the first range, 10,000 cpm on the second range, 50,000 on the third, 500,000 on the fourth, and about 2,000,000 on the last. Most signal genera- tors don’t go up this high (33,000 cycles per second), but if it goes up to about 20,000, you should get about a 34-scale reading on that. : Having completed that part of the instru- ment proceed to wire up the high voltage circuit according to the diagram and in- stall it in the cabinet, checking to be sure that the cabinet will close properly. The high voltage output cannot be accur- ately measured with ordinary test equip- ment, even a VIVM. The output current is so low that the test equipment will load it down and give a false reading. бо you must take into account the resistance load the meter is placing on the circuit and figure -the actual voltage. If you have a high voltage probe for your VTVM, you can use it and be reasonably sure that the voltage you read is correct, since.the load resistance of these probes is very high. Lacking this equipment, another method may be used to check the high voltage and will be described later in the article. -Next, start- building the probe unit. Having obtained a 6199 photo-multiplier tube, a socket to fit it (which is a standard picture tube socket, but with all twelve pin connections, and is known as a duodecal socket); a one-inch diameter by half-inch thick thallium activated sodium iodide crystal (a larger one of course will be bet- ter, but it costs much more); a ten-foot piece of shielded cable (three wires in- cluding the shielding); a piece of tubing about two inches in diameter and about ten inches long, made of any type of metal, but preferably of stainless steel. Also, a thin aluminum ‘can to hold the sodium iodide crystal cut and shaped as shown in the drawing, a tube of silicone grease, and a piece of emery cloth or sandpaper of about 200 grade or finer. Wire up/the socket as follows: first wire in the resistors starting with the 20 meg between pins one and twelve; then, each . succeeding 10 meg resistorinitsturn. You will find that they will lay nicely one-next to the other. right across the bottom of the: socket. Next, wire in the condensers (220 míd), and connect the cable; don't mount the jack at the other end yet. Shape the tubing by cutting slots all around one end, about % inch in and % inch apart. Now, bend these in, closing the end slightly and forming a shoulder. File out the hole that remains so that the aluminum crystal holder end will just fit in the hole. Glue a thin piece of sponge rubber around the inside of the hole; this will prevent dam- age by shock when the probe is in place inside. Now, make a cap for the other end of the tube. Cut a metal disk of alumi- - num or any other metal, about four inches in diameter. Draw a circle in the center . of it to the size of the tube you are using. Make V cuts in as far as the circle you have drawn and bend the ends down around the tube so that. it just fits over the tube. Drill a !4-inch hole in the center, for the cable to come through, and about four or five holes around the sides. Place it over the tube and drill holes in the tube to correspond with the holes in the cap. These holes should be smaller, to hold the cap on with self-tapping screws. Now, push the cable through the %4-inch hole of the cap and make a knot in the cable about five inches from the socket end. This will limit . the amount of cable that will pull through the hole so that when the instrument is - completed the probe may be held by the cable without danger of tearing the connec- tions loose from the socket. Mount the con- necting plug at the other end of the cable. We are now ready to work on the crystal. It is very important that this work be done - in the exact order given. Clean off a table. . or bench with a flat surface to give your- ~ self enough room to work freely. Place the emery cloth or sandpaper, sanding side · up, and tack it down so that it will lay flat and will not move. Also, have near you _ on the table a roll of Scotch waterproof ` [Continued on page 180] _ ; When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 5 163 -

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Uncle Tom is sorry he can't answer all his mail personally. In this column he'll answer the most interesting letters. Write to him at MECHANIX ILLUSTRATED, 67 West 44 St., New York 36, N. Y. .€ Believe it or not, I have a 1934 Plym- outh whose roof is infested with ter- mites. Have you any suggestions? Larry Bolen, Jr. Toledo, O. Don’t chase them out. They’re probably the only thing holding the car together. € I recently read that when washing your car you should, start at the bot- tom and work up. Sounds screwy to me. Do you agree? Bob Johnston Miami Beach, Fla. Sounds screwy to me. 9 Boy, were you lucky! I was at Speed Week this year and it didn’t look like the beach would ever flatten out, and it didn’t until the last minute. Why don’t you have substitute plans for taking care оў such things? George Richards New Orleans, La. - We are now negotiating with the Port- land-Cement Company to dump 8,603,000 bags of their quick-drying cement on the course by helicopter, if it ever becomes _ rough again. This'll quickly be spread by dragsters and after the next tide we'll have the only paved beach in the United States. . € Гое been told that, through conden- sation, а cupful or more of water will get in а car's gasoline system and tank in about a year. What's the dope about this? I've also been told that а quart of alcohol in the gas tank will clean out the water. Is this true? - Harry Barnard Atlanta, Ga. Most service sta- tions sell alcohol products such as DriGas True on both counts. which will mix with the water. This mix- ture will then flow freely through the reg- ular gas lines and carburetor jets and pass out of the system unnoticed. I dump a quart of alky in my fuel tanks about every six months on general principles. Inci- dentally, the surest way to avoid getting water in your tank through condensation is to keep it as full as possible at all times, especially when the car isn’t being used. This doesn’t, however, eliminate the water you get in fuel at service stations that have let their supply run too low in the. tank. This is the most common way to get water in your gas. € We work ina Motor Pool as mechanics and are (my helper and I) continually arguing over cars, etc. We have a problem that we would like to settle once ата for all. Is it all right to call an engine a motor? If not, why do they call this a Motor Pool? I also noticed in a mechanic book under “Tune-Up” they called it “Motor Tune- Up.” ` x х Virgil W. Eckstein Fort Bragg, М. С. _Any real old-timer would split your skull open with an axe for calling an auto- mobile engine a motor. То them an engine was an engine and a motor was an electri- cal device that transferred electrical en- ergy into mechanical energy. Through the years we have softened up on exactness of words and today motorboats, motor tune-- ups, outboard motors are accepted as cor- rect terminology. Websters Collegiate Dictionary claims a motor is “апу internal [Continued on page 166] June, 1956

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Its the POWER ТР that makes Ordinary Plug Tip New Power Tip Some spark plugs are designed for low speeds . . . some spark plugs are designed for high speeds . . . Only new “fires ир your engine at all speeds! No more need for old-type plugs in modern engines. In the past, you had no choice but to use conventional type spark plugs in your modern overhead-valve engine. You had to choose between “оё” or “соіа” plugs depending on whether your driving was mostly at low speeds or high speeds. Now new POWER ТЇР—опе plug for ALL speeds! Here's the difference. Projecting center electrode and ceramic tip—the POWER TIP—extends the spark gap in toward the center of the combustion cham- ber. It operates hotter at low speed—resists fouling because deposits burn away clean. Yet the Power Tip takes advantage of richer intake gases in high-speed, wide- throttle driving—runs cooler and checks pre-ignition! - Available now for all these cars with overhead-valve V-8 engines using 14 mm plugs: Buick, Cadillac, Chevrolet, Chrysler, De Soto, Dodge, Plymouth, Ford, Hudson, Imperial, Lincoln, Mercury, Nash, Oldsmobile, Packard, Pontiac, Studebaker. RESISTOR SPARK PLUG WITH ш Aate-Lite manufactures over 400 products, including Spark Plugs, Batteries, Wire and Cable, and Automotive Electrical Systems . . . sold throughout the United States and Canada. When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 165

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| Highway Safety Contest Puzzle No.1 - Reprinted From The May Issue LINE TOTALS Т, ian MY SCORE А-1 B-4 This copy of Puzzle No. 1 may be used іп g place of the original printed in May МІ. Be sure to follow all the rules on pg. 80. р 166 ў раан шылап SR Mail For McCahill [Continued from page 164] combustion engine, esp. a gasoline en- gine, as for an automotive vehicle.” If you called.a glamor girl in Lincoln’s time “terrific” her brother would shoot you right in the belly, if her father didn’t beat him to it. Today the gal would kiss you. See what I mean? © Тата monthly fan of yours. I have never seen a report of yours on a Nash or Packard. : Bernard Kantak Syracuse, N. Y. -We tested the Nash Rambler in the Feb- ruary issue this year and the Packard in July '55. During the years we have run many Packard and Nash tests. When did you start becoming a monthly reader—this month? © I hear you disqualified a lot of Chev- rolets at the Daytona Beach Speed Week for one thing or another. Bet this made Ford happy! Joe Darby . Indianapolis, Ind. Not especially. The first car I disquali- fied during Speed Week was a Ford. € I bought a copy of May '55 МІ at a cut-rate second-hand magazine shop and while browsing through it noticed a report on the Daytona Beach races. Much to my surprise it showed a lowly Thunder- bird showing its tail to а pack of Jags and even three Mercedes-Benz 300SL/s. Were the drivers of the 300's trying to make like | handicapped snails or did the T’bird have JATO units? It seems to me that as an authority on sports cars you should have shown at least a slight bit of surprise at this upset. David Pease Aberdeen, Wash. I wasn’t surprised; I owned the T’bird. Furthermore, you can always expect dis- appointments in second-hand magazines. € As an old booster of black-painted cars, I feel it’s pretty disgusting to see so many new models featuring all-white. It makes them look like milk wagons, to June, 1956

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use a McCahillism. How do you feel about this? L. B. Burnett / Chicago, Ill. As a former owner of several black cars, I am forced to admit that white or any light color shows dirt far less than its darker brethren. In addition, they are many .de- grees cooler in hot weather due to the re- flective properties of white against the absorption qualities of black. About the McCahillism, why not just say they look like a guy who has just been overdrawn at a blood bank? Ф You may find this difficult to believe ) but when I took delivery on my new Plymouth recently I found a hockey puck in the glove compartment. I asked my dealer what it was for and he couldn’t tell me. Can you? H. G. Schindler New York, N. Y. To play hockey with. @ About a week ago, off Pumpkin Key, I was tied to a marker fishing when a blue boat named The Rooster slowed down nicely as it passed me. Only after it went on again did I get to thinking the guy driving the boat looked like Tom McCahill or his double. Was it you by any chance? Harry Chapin Coral Gables, Fla. Guilty. € Is Bill France any relation to Mendes? ? Kay Ransom Richmond, Va. Mendes is Bill’s grandfather, once re- moved from Anatole. € For the past several years you've been the best. I mean it! Your honest and . *pull-no-punches" articles about automo- biles have influenced. а good. many of us. This includes me. Many times it’s not what you say so much as it is how you say it. Where you get such similes I don’t know. They're terrific. Your Mail For McCahill is without equal. I have chuckled for days over some crazy answers you gave to an inquiry. Congratulations om your tenth anniversary with this magazine. Yowre rendering a wonderful service to the [Continued on page 169] THE GLASS-PACKED MUFFLER WITH THE DEEP, SMOOTH TONE... Dyna- i : чу 574 uu ШЙ wropped 24-gouge outer steel shell for longer life. Straight-through design for power, with big 2" Fiberglas” packing con- inner tubes.

tains both types of glass fibers — short and long / 16-gauge spun-lorked, blowout-proof steel heads. Painted, lustrous gold color. The big 2-inch straight-through tube of the Dyna-Glas muffler reduces back pressure to a minimum—gives you better performance, increased power, greater mileage. The com- bination of long and short Fiberglas* fibers in the packing eliminates the rasping tones common to many Hollywood type mufflers, and lets only the deep, rich power tones , through. And its exclusive, heavier, double- wrapped 24-gauge outer shell makes certain your Dyna-Glas will last thousands of miles longer. Dyna-Glas duals and headers give your V8 top performance and power. Ask your favorite dealer or automotive store for Dyna-Glas mufflers, duals and headers . and the famous steel-packed muffler, . Dyna-Pak. For name and address of your nearest dealer write to z

= Dept. 3F, Toledo 1, Ohio *Trade-mark OCFCorp. When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 167 — == - < PEE илик БӘ

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fpei a Bonnie ЇЇ [Continued from page 148] at the joint in the after deck. Run Kuhl’s seam compound into the seams. Stain the deck and apply one coat of varnish right away for protection. Construction of the cabin has been kept as simple as possible and ample sitting headroom is provided. The principal side supports are eight pieces of 115x214-in. fir, four to aside. The back ones, at frame No. 4, are carried down to the floor frame and - fastened to it with screws. The other up- rights do not extend below the deck fram- ing and are screwed to the longitudinals. It is necessary to bevel the lower ends of these uprights so that they will stand straight, as the longitudinals have an out- ward slant. The three aft uprights on each side are placed with the greater dimension running lengthwise; the forward ones are set in the opposite direction and notched to receive the roof stringers. The front panel of the cabin goes on next. Use 1%4-іп. No. 8 screws to fasten it to the uprights. Next, bend in the roof stringers, securing them to each upright with two 1%4-in. No. 8 screws. Cut the two back - pieces of the cabin with care and stand ` them in place. It is best to make paper patterns of these, taking measurements from the inside of the boat since the ends must be flush with the-inside of the hull. Notch the chines and sheer strips and, - when fitted correctly, fasten them to the back uprights with 114-in. No. 8 screws. — Cut two more pieces of fir for door _ frames and screw them to the edges of the - door opening. Run screws from plywood _ into fir. It will be found that these up- rights, running down behind the slide rails for the removable panels, can be fastened . to the floor beam for extra strength. Cut two fir end carlins and screw them to the plywood end pieces, allowing the outside ends to rest on the uprights. The inside . ends butt against the door frames. Now saw out the carlin which fits against the front panel and fasten it in place with 114- in.No.8 serews. The two fore and aft roof beams of %x2-in. oak come next and are notched and screwed to the end carlins. The cabin sides are %-in. plywood and — continue aft to a point six inches beyond the cockpit, acting as splashboards. The bottom edges are snug against the deck all along and must be trimmed in a slight upward curve to attain this. Screw the sides to the framework and clamp in place around the edges of the cockpit tem- porarily. The splashboards are lined with %-in. plywood of the same shape but extending down inside the cockpit to cover the deck framing. At the aft end of the cockpit the pieces are notched so the extremities will rest on the afterdeck alongside the splash- board. This gives a 34-in. thickness to the splashboard. Remove the temporary clamps on the splashboard and screw it and the lining to the deck longitudinals. Side ports are cut now or later. The remaining roof carlins can now be put in. They are notched into the tops of the fore and aft roof beams and fastened with one screw at each joint. The roof is then covered with plywood in three sections, with joints meeting over the roof beams. The top edges of the cabin sides should have been previously beveled so the roof panels will fit snug. The removable panels and the slide rails which hold them can now be fitted below the cabin doors. The top panel is rabbeted as shown to form a stop for the doors. Fasten the hatch slide rails to the cabin roof with 2-in. No. 10 screws, driven from the inside up through the roof panels. The hatch cover is made as shown, with the’ hinged flap on the front coming down over the door top when closed. Construct the forward hatch cover also, following the sketch. Stain and varnish all exposed mahogany surfaces, if you have not already done so. Paint the outsides of the hull, cabin sides, front and ends with two coats of yacht white, flat. The entire inside of the boat should be given a prim- ing coat of aluminum paint, followed by a coat of semi-gloss interior paint. All the deck hardware, door hinges, rud- der gudgeons, еїс.‚ may now be put on. The bow and stern chocks, bow plate, lip leaders and hinges are screw fastened: mooring bitt, gudgeons and cleats are through-bolted. [Continued on page 186] June, 1956

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Mail For McCahill | [Continued from page 167] American public. The best of luck to you. Forrest L. Thorpe Atlanta; Ga. cat thanks. У 6€ You ате а bum. Ten years of you is enough. Why don’t. you dry ир, you old bald- headed windbag? -Edgar . Krause толы Brooklyn, N. Y. Godd old True- Blue Krause. € Why do you clutter up your mail column with wise-cracking phonies? You could use this space for good serious automobile material. Let's cut out the sharp answers to nincompoops, as you must get enough serious letters to make these letters worthwhile reading. Hector W. Ulrich Long Island City, N. Y. Heck, Hector, the best fun I have in the magazine is selecting and answering a wide variety of letters. However, if enough other readers feel like you do I will drop all facetious correspondence: and answers in favor of topics such as How To Get The Most Out Of Your Rear End. Or What Every Boy Should Know About Volu- metric Efficiency. If that’s what you want, just let me know.—Tom McCahill ° The Chevrolet [Continued from page 89] world of ‘credit. Realizing that he built it with a price factor and general useful- ness in mind, Cole doesn’t have to take a back seat to anyone at Mercedes, Ferrari or any of the other accepted automotive greats. Another big Bel was Cole's selection of material The entire valve train of this engine is extremely light when compared to the competition (a key factor in allow- ing it to wind up so tight). Ounce for ounce and cubic inch for cubic inch, this Chevrolet engine is the greatest perform- ing engine ever built in America, bar none. Risking repetition and considering that low price was a major design factor, this engine might very well be rated the [Continued on page 170] no other plier does so many jobs No. 420 GRIPS LIKE A PIPE WRENCH Help yourself to a Channellock No. 420 ... the handiest plier of them all. With this handy plier, you can grip anything from a cotter pin to "a 1%” hex nut. And what gripping power! Just like a pipe wrench. What's more, Channellock is streamlined . . . easy to use in hard-to-get-at places. This all. 'round usefulness is the reason why Channellock is the favorite plier of craftsmen everywhere. It'll be your favorite, too . . . for the same rea- Son. Ask your hardware man for a Channellock No. 420. BE SURE IFS A GENUINE CHANNELLOCK CHAMPION DEARMENT TOOL Co. MEADVILLE, PA, When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 169

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FREE PLAN | tells how to stari your own business 2 FILING SAWS Here 15 a steady repeat Casn business you can start in your own basement or garage in your spare time. You can file hand, band and cross-cut circular saws on the Foley Saw Filer. No eye- strain—no experience needed. ‘“The first saw I sharpened with my Foley Filer came out 10095"— writes Clarence .E. Parsons. . Every saw you sharp- ^ en with the Foley | Saw Filer brings you more customers. || rented a two-car garage and have all | the work I can do" —Charles H. Smith. FREE BOOK “Money Making Facts’’ shows just how you can start at home in spare time, with small invest- 4 ment, no overhead—and develop into a full-time repair shop. Send: cou- * pon today—no salesman / will call. П FOLEY MFG. CO., 615-6 Foley Bldg. Minneapolis 18, Minn. { Send me free book **Money Making Facts.” І Nam j Addr 50 EASY Tt EASY TO USE... SO POWERFUL... | 50 DURABLE! Heavy duty. Out- sands, outlasts SYNCRO SANDERS Feature the MODERN SYNCRO RECIPROCATING . MOTOR today's greatest » » achievement of all electro - mechanical research! Powerful! Smooth! No cal use. America's cams, belts or gears. No rotating greatestfinish parts to wear out. No brushes to sander .....$19.95 burn out. See sanders at stores. Write Syncro. for Free catalog and sanding handbook. MULTI-MOTION others. Has our exclusive No- Jumping, Multi- Motion sanding "action ........ $39.95 Model 504 Light. Powerful. Easiest for verti- SANDERS SYNCRO CORPORATION -A6 OXFORD, MICHIGAN, U. S. A. WORLD'S LARGEST MANUFACTURER OF RECIPROCATING MOTORS 170 The Chevrolet [Continued from page 169] greatest competition engine ever built. It undoubtedly is from a dollar-and-cents standpoint. But now, just in case you might be get- ting the idea that I think this is the perfect car, let me say this at once: in my opinion, these cars, in order to stay together in hard use, definitely should have a stabilizer bar in the front end. You can buy this as an accessory at nearly all Chevrolet dealers but I think the factory should have tossed it in as standard. The front end has been beefed-up over '55—so has the whole car as a matter of fact—but it still needs the stabilizer bar. When I was testing this car with Jack Tapscott, with Jack at the wheel, ` ` we hit a two-foot rut and the whole front end made a crashing noise similar to drop- ping an anvil on plate glass. If I hadn't braced myself just above the windshield with both hands, having seen the rut com- ing, Га have been riding the hood orna- ment bareback. А little more guts in the. front end and this would be a much greater car. Summing up: this bargain-price Mer- cedes is the greatest performance buy ever . offered at any time in America. It would whiz by a Duesenberg like Halley's Comet and the vacuum as it went by would suck the stork off an Hispano-Suiza. The carI tested can be bought by anyone for two thousand dollars and if performance is your meat, just bear in mind that this two- door, five-passenger sedan would run away from a Jaguar XK120 of just two or three years ago as if the Jag had just dropped. its engine. On these pages you old readers may re- member that as long as eight or nine years ago we pointed out that if the American manufacturer ever decided to build the best-performing cars in the world they could do it in a matter of months. The fastest high-performance sedan built in Europe today is the Bentley Continental costing roughly $20,000. 'This Chevrolet, costing ten per cent of that, could eat it alive even with an unwarmed-up en- gine. ? i When answering advertisements please mention MECHANIX ILLUSTRATED 2; -~ June, 1956

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Car Outlook For 1957 [Continued from page 63] and more stainless steel is being used and will be used. Inside those cars of. 1957 will be many innovations. First off, the upholstery. Synthetics that are again brand-new will come into sight for fabrics, and they will be more practical than in the past. Their designs will tend to obscure dirt and they will clean up more readily. Once again they will be brighter and more lively, in line with the trend toward happier colors and combinations on the outside. Individual seat swiveling, something in- evitable some day, may turn up. Front . passengers may be able to swing their seats at least 45 degrees outward to make en- trance and departure easier. And you'll see more cars next year with reversible seat cushions. Dashboards will be largely padded (there was substantial movement that way in 1956) and finished in colors to match the rest of the interior. Controls will be more inconspicuous than before. With these bows in the direction of safety, another in- novation may appear—redesigned steering wheels, some like the “деер dish" idea stressed so strongly last fall. That steering wheel, incidentally, will be changed in another particular. The tend- ency will be to reduce the number of :turns from lock to lock, particularly among the larger cars, so you won't have to do as much work swinging around a corner. That kind of reduction is possible because of the growing use of power steering, all but standard on the higher priced cars. That power option brings up others. The day is fast approaching when automatic transmissions will be standard equipment rather than available on order. The 1956 model year saw many lines install auto- matic drives as regular equipment and this drift will broaden for 1957. Air conditioning, if you’re interest | will once more be lower in price. It is steadily pointing toward the day when it [Continued on page 172] it's EASIER to |. '100-IT- YOURSELF" when Indestro сер Саг б Mechanics, NO EXTRA À buy these TEES = wrench or secket sets Double-Duty Wall-Klips ine duded with these socket sets : Bright red or green baked enamel the wall alongside your work bench... nigb Wall-Klip of sturdy, one-plece Klip-Tite Holders included with these Indestro Wrenches Box End Wrenches illustrated are ackaged in red-enameled metal Home Workshop Hobbyists! You’ll want to mount these handy Utility Holders on construction that keeps tools RA folders that open up to form conven- ient wall-bracket with two holes for easy mounting. Six ran in Klip-Tite Holder: No. 910-5W, Range 3/8" to шы Piel Шы А х s x x and 4° L'hendle. An AUS 15/16 x 1”. Aleo available with Com- piece Wi Ренне MA Kupoi eem Wrenc| a convenient place to keep wrenches and sockets where they can be quickly re- moved or returned. You always know lowing 1 where to find them. Wall-Klips or 14” Holders actually cost you nothing as they are included with Indestro Wrench and Socket, Sets described here. See them at the hardware, implement, auto supply or variety store that sells Indestro Tools, or write us for name of your nearest Indestro Dealer. When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED ІЛЕ

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BiG NEW YANKEE No. 633H ANDYMAN —— Spiral Screw Driver н Just Push... Drive Screws Fast Here's a new “Yankee” Tool with a built-in formula for faster, easier work — 1 push and you turn the screw à number of times — yes, every stroke turns the screw a number of times, and with the quick-return action you are ready for the next stroke immediately. This Spiral Ratchet Screw Driver does more than drive and draw screws. It drills holes in wood, plastic or plaster, and counter- sinks for head of screw. In addition to Screw Driver Bit in chuck, 3 Drills and a Counter- sink come in magazine handle. A "Yankee" tool from the Tool Box of the World. At your hardware store now. STANLEY DRAINS «cellars, cisterns, wash “tubs; p\IRRIGATES - CIRCULATES = FRAYS ў has DON gru О! Ye to 34 on ЕН Stainless steel Shaft. ‘Oil. fess bearing. HZ in- let; 34” outlet. Motor coupling included. DOES NOT: ҮЕДЕ GR CLOG! Pee if cash ler. Send for yours MONEY BACK GUARANTES, Larger Cen- ат Pumps, and Gear Pumps in all sizes. LABAWCO PUMPS, Belle Mead 30, New Jersey DO IT BETTER. DO IT WITH CAULK GLAZE SEAL PATCH Prevent drafts, moisture, damage and de- terioration the easy way. Use D-P Caulking Compound . . . in cans or handy cartridges for gun use. Always stays in condition for immediate us8, Fill cracks in brick, stone, wood. D-P stays. in place permanently. Get D-P glazing, sealing and caulking com- pounds or putties at all good stores! Ask your dealer for D-P Products. THE DICKS АЛ PONTIUS CO. 5301 Huberville Æ Җ Ave., Dayton 3, Ohio INSIST ON D-P BEST SINCE 1867 172 z Car Outlook For 1957 [Continued from page 171] will become standard equipment on most ears, and when those cars will be sealed units without movable windows, providing man-made temperatures and drafts as de- sired. More windows will be power-operated in 1957. Visualizing the console of buttons to control the windows brings up the an- ticipation of another dash at the driver’s side containing buttons that will lock and unlock the doors on the right-hand side of the automobile. The change that no one will be able to see on the 1957 cars, but the one that may mean more than nearly any of the others, is a far-reaching modification under the hood. Detroit expects that one maker, maybe more, will use fuel injection on 1957’s rather than an orthodox carburetor. · For the great majority of car buyers, fuel injection, although not new, will be some- thing unfamiliar. The carburetor is elim- inated and a series of nozzles set up, one for each cylinder. For each of these nozzles, a system of mixing air and gas and feeding it directly to the firing chamber is used. You then have fuel injection. Provided the separate nozzles are properly adjusted, en- gine performance is perfectly even, cylin- der to cylinder, and ideally economical. The engine runs smoother than it possibly could any other way and it burns the minimum amount of fuel. It’s more silent and tends to vibrate less. That is the mechanical virtue of a fuel injection system. But there’s another of equal importance to the car-makers who consider mechanics in relation to styling. Fuel injection—and it is all but finally spe- cified for at least one 1957 automobile—can make possible some really remarkable changes in design. The reason is the carburetor—or the lack of a carburetor. Each carburetor, as you know, has to have an air cleaner attached so the air fed to the mixing chamber con- tains no dirt or particles that will clog up the tiny passages of the carburetor. The bulkiness of the air cleaner is the reason hoods are as high as they have been. With carburetor and cleaner eliminated, it's pos- sible to lower the hood. And it will be lowered. "That's the big- se SS June, 1956

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gest styling development expected to come out in the 1957 models. Cars with fuel in- jection can confidently be expected to have hoods as much as six inches lower. To cope with problems created by lower- ing of the entire automobile, suspension systems may well undergo. modification. There's industry talk of independent sus- pension at all four wheels rather than on the two front wheels only. Some think that this individual suspension will come about by use of air bellows, like those announced by oné truck producer a few years ago, in conjunction with more orthodox springing mechanisms. Others, however, think the air suspension for passenger car is defi- nitely longer than a year away. It has been reported that Plymouth, Dodge, DeSoto, Chrysler and Imperial au- tos for '57 will be equipped with torsion bar .suspension on the front end, replacing the present coil springs. Chrysler is reportedly making its own torsion bars and is tooling up now for production. Packard was the first car-maker to introduce this type spring on its '55 models. Aside from the fuel injection system (and that only on one or maybe two models) the single change of note for 1957 under the hood will be, again, more com- ` pression. The air in the firing chambers will be squeezed more tightly than ever be- fore, just as it has been in recent years to keep pace with better gasolines. The result will be still more exciting performance and more horsepower, amplified still another notch with the use of fuel injection. You've read over and over again about gas turbine engines and how they may re- place today's spark-fired motors. Gas tur- bines will come, to be sure, and with them may come the use of diesel engines in pas- senger cars. Chrysler Corp. already has a diesel-powered Plymouth Belvedere four- door sedan in production in Belgium. Its four-cylinder mill is rated at 40 hp. You probably won't see any production gas tur- bines or diesels on American roads next year, but the changes you will see are startling enough to mark 1957 as one of the most exciting years in automotive his- tory. 9 - . When answering advertisements please mention . MECHANIX ILLUSTRATED MakoBIG MONEY at. welder- ae. power 7 © Welds or runs E | tools, lights, nes motors, etc. 7 A REAL PROFIT MAKER for emergency repair jobs 200 Amp. AC Welder-AC Power Combi- nation, four cylinder air-cooled engine. Furnishes 200 amperes of welding cur- rent and 5,000 watts of AC power alternately. Easily mounted on your truck or trailer for quickly getting to where it’s needed on a moment’s notice. “Husky Boy” 200 amp. welder driven by a 2 cylinder air-cooled engine. Per- fect for outside or around the shop welding. Handles the big pay jobs. AC Power or AC Welder. An excellent dual purpose combination available in 200 and 300 amp. welding sizes. Can be belted or coupled direct to your own gas engine. . Transformer Type AC Welder 250 amp. A real weiter for proguction andre ing pair work in shops that have only sin- AC Welding fie phase power available. “Bantam Champ" 250 amp. electric motor driven welder for general shop А use. Ideal where compactness . Investigate and low investment are prime these considerations. AC Power.. G MAKERS Hobart School of Arc. Welding Learn arc welding quickly by actual on the job experience at the non- profit Hobart Trade School. Com- plete or partial courses. Modern Arc Welding Lessons ‘200 pages. Fully illus- trated. Learn practical arc * welding in your spare amp" timé........ Only $1.00. HOBART BROTHERS CO., BOX SM-66, Troy, Ohio, Phone 21223 "Опе of the world's largest build- ers of arc welding equipment." e*ceccccsc5]| cci] on] ө өе е о. RS CO., BOXSM-66, TROY, OHIO ES S *'Bantam Ch HOBART BROT! : Please send additional data on items checked: S ;. О “Husky Boy [] АС Power—AC Welding а * О АС Transformer [] ''Bantam Champ'' Д + П Hobart Welding School [7] Welding Lessons, Г) Weldor's • Б $1.00 vest Pocket > * NAME иче > ADDRESS Я > CITY. STATE С h*eoeeoeosccneocevevocececeeococeeocesccesvesciveicivios When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 2173 3 4

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EE z | BIGGEST SAW VALUE g” Tilting Here is everything you ever wanted in a power saw. De- sign, quality, precisior, rug- gedness and low cost. The all new DURO MASTER 8" Tilting Arbor Saw in- cludes all important features and operating advantages including: “floating” motor shift, rugged "quick lock" rip fence, handy blade rais- ing and lowering knob, one piece steel frame, conven-. ient blade tilting mechanism $53.45 as illustrated with graduated scale and modern safety guard. And only DURO MASTER offers = built-in conversion and adaption features for tomorrow’s needs, too! Write for FREE Brochure and power tool catalog giving full details and specifications on this remarkable new saw. DURO METAL 2699 N. KILDARE AVE. o $4845 less extensions, Ы splitter and guard PRODUCTS COMPANY CHICAGO 39, ILLINOIS ready-cut 12 ft. SEORIBORT KIT parts and `] M N = hardware. È 4 Ы ` à % y Includes }p .. 3 Models low as $39.00 freight incl. Dept. MI-6, 636 39th Ave. N.E., ОШЫН 21, Minn. д V 2 NOW, THE 3-1N-1 PENETRATING FINISH... McCLOSKEY TUNGSEAL A complete finish for all wood floors, furniture, paneling, trim, bar tops—stains, seals and fin- ishes all in one operation. So easy—you can do it yourself Tungseal brings out the beautiful grain of natural wood and pro- tects it with a hard, elastic, pene- trating finish that successfully resists alcohol, caustics, deter- gents, scuffing and abrasion. Available in 12 popular colors and clear. Mc s Closkey ШЙ FINISH { FOR FLOORS p FURNITURE: “TRIM : Get in touch with the deal- er who handles McCloskey or write us direct. McCLOSKEY VARNISH CO. Philadelphia © Chicago œ 105 Angeles e Portland, Ore. T __The Chrysler 300B [Continued from page 93] hook-up. This would be a much more sat- isfactory outfit, in my opinion, for anyone not planning to enter competition—except for an occasional rush on the turnpike or in a traffic light Grand Prix. I’d also stick with the new three-speed pushbutton transmission unless the gearbox has been smoothed out considerably, because if you miss in one of these lumpy box deals when trying to beat your iceman down to the corner you stand a good chance of creating a hailstorm of gear teeth. Some other failings in this car are in the instrument panel, which has been a criti- cism of mine with most Chrysler cars. The instruments are far too small and hard to read, especially the Lilliputian-sized speedometer. At the price they sell for, plus the purpose they were built for, these cars should all come equipped with large, easy-to-read tachometers as a guide for the driver when he gets into high speeds. Most of the 300B’s running dur- ing Speed Week had electric tachs that were put on by their owners. These cars steer far better than they did last year, when not equipped with power steering, and most of the ones that are raced don't go in for this accessory. In the cornering department, the 300B's are as stiff as an Englishman's upper lip and in action are very similar to the old Mexican Lincolns. They are, however, slightly tail- light and on slippery surfaces can be made to break without too much wheel snap. I had several requests from 300B drivers to allow them to add weight in their trunk compartments for the Speed Trials to cut down wheel slippage but I had to refuse because of safety regulations. This year adding extra weight in car trunks was ruled out because, in the event of a spin or a car getting out of control, such weighted objects might easily burst through the trunk compartment partition, adding several more hazards for a driver already in plenty of trouble. As we wrote last year, the lush genuine leather upholstery and interior appoint- ments spell quality with a capital Q. The leather is glove texture in feel and in the tan and buff shades simulates fine chamois, though of course itis much stronger. Like June, 1956 4“

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most large Chryslers the 300B has a glove compartment in which two average-sized mice would feel crowded. In summing up, the Chrysler 300B’s are |. the ablest sedans ever built—bar none. When well-tuned on a hardtop road they can be expected to do better than 140 mph if not too overloaded with accessories. In the tests I made, zero to 60 mph averaged 8.4 and 0-80 mph took 12.9 seconds. Ап in- teresting point is how these big cars start to move when under way. For example, the best time zero to 30 mph averaged 3.7 seconds—not fantastically exceptional. It got to 50 mph in 6.8 seconds which was a lapse of 3.1 seconds from its 30 mph time; reached 60 mph in 8.4, 70 mph in 10.5 and 80 mph in 12.9, and got up to 100 mph in under 19 seconds—from a dead standstill. If you'll consult the Chevy test in this issue you'll notice that the Chevy outjumps the 300B up to 50 mph but is topped when the two cars reach 60. If you’re in the market for a mastodon of muscle or a car for run- ning to the station in nothing flat plus one that’ll win all arguments across the pol- ished mahogany, this is it. A great car— but before Га buy one Га tame it just a bit. ° Test YourFishing Tackle [Continued from page 105] another) Гуе seen fishermen lose what might have been record catches—simply pecause they used the. wrong kind of tackle. One of the commonest mistakes is that of selecting the improper strength line. Practically all fishermen use a line that is too heavy for the kind of fish they are out to catch. As a result, the reel is over- worked, the line is given to frequent snarl- ing and the outfit as a whole remains unbalanced. Consider, for example, an, angler who feels he is going to land a fish of 40 pounds. He need not purchase a 40-pound test line. Exhaustive surveys made by sportsmen, as well as tackle manufacturers, reveal that the line strength required will depend "upon three factors: 1. the bending of the rod (which can assume as much as 40-50 per cent of the work load, or, in this case, 16-20 pounds); 2. the dragging ability of [Continued on page 116] When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED Herb Thomas —ace driver of NASCAR (National Association for Stock Car Auto Racing), says: "Ме give oil filters their toughest test —and we pick Purolator for every make of car!" Protect your car like the “pro's” do! Because a Purolator can trap up to 3 pounds of grit in one NASCAR race, 9 out of 10 drivers use Purolators whichever make of car they drive! Purolator Micronic filters stop dirt fine as 39 millionths of an inch . . . have up to 10 times greater capacity than many oil filters. Ask your serviceman to put in a Purolator refill every 4,000 miles— when he changes your oil. Takes only minutes. From $1.60. © 1956, Purolator Products, Inc., Rahway, N. J.; Toronto, Canada. **Purolator'' and *‘Micronic,’’ Reg. О. S. Pat. ОЖ. . Proved best for every make of car PurOlator OIL FILTERS `

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Soldering à Eay VV E 242 with INSTANT STARTING LIQUEFIED Lp PETROLEUM Torch THE ONLY THROW-AWAY FUEL- CONTAINER WITH SELF-SEALING SAFETY VALVE. Here’s what you can do: @ regular soldering. sweat fittings, € silver soldering, refinish furniture, ө remove paint and putty. Available at Hardware Counters Everywhere THE Lenk MFG, СО. Write for FREE Soldering Instructions BOSTON 15. MASS. Simply assemble and finish our new water ski kit and you have a pair of skis worth twice the price of the kit. Skis are 7 ply moulded plywood, 6715" long, 7” wide, %6” thick. Sturdy rubber foot pieces. АП parts ae instructions included — $18.00. Order from your Michigan dealer or MICHIGAN WHEEL CO., Dept. M-6, Grand Rapids. Mich. C.O.D. orders accepted. BRAND NEW! ARCO HOLE-SAW’ (2 with AUTOMATIC SLUG-EJECTOR / Fits any Eleetrie Drill, Lathe, Drill-Press or Motor. Ex- elusive ‘‘Slug-Ejeetor’’ pops out discs immediately—there- fore works 3-times faster than other hole saws selling for twice as much. 7 shatterproof blades easily exchanged to cut 1", 144", 115", 1%”, 2", 2%" & 215" holes thru any *4" stock. Safety-lock screw prevents blades from $6 50 “jumping out.” Incl. М” drill bit Li No. 600 “ARCO HOLE-SAW’’—as above, but with $4 95 4 blades to cut 1", 115", 2" & 2%” holes б At your dealer or try it on our 10-day trial. Send check, М.О. (ppd). C.O.D. plus post. ARROW METAL PRODUCTS CO. Dept. MI-6, 140 WEST BROADWAY, NEW YORK 13, М. Y. 176 Test Your Fishing Tackle _ [Continued from page 175] the reel (another 50 per cent, or 20 pounds); 3. the strength of the line. Hence,. in this particular instance it is obvious that _ the line need only be capable of handling a maximum weight of ten pounds, or only one-quarter that of the 40-pound fish which the angler expects to land. The choice of a rod, unlike the reel and ` line, becomes a matter of compromise. A too-limber rod will not permit the angler to set the hook properly, following a strike. Conversely, a too-stiff rod invites break- age. A happy medium would be a stick which has enough “backbone” to offer a formidable weapon to the type of fish that is to be landed, yet one limber enough to absorb much of the strain to which the fisherman’s arms and wrists would other- wise fall heir. One easy way to select your rod (ог. “tip”) is to determine what strength line you need to handle the size fish you intend to catch. Then, with such line in place on the bait casting, spin or fly reel you intend to fish with, proceed to balance such a reel to a rod that appeals to you. Next, enlist the aid of a companion to hold and observe a spring scale to which the free end of the line has been fastened. Finally, backing away from your assistant (as though he were the fish) let out about 50 feet of line before locking the reel (using the reel brake or your thumb). Now pull back carefully against the straining rod tip, meanwhile noting the extent of its bending, until the man holding the scale calls out that the pressure you have ex- erted in pounds of pull exactly equals the breaking strength of the line, as specified · by the manufacturer. In this manner you can tell at a glance whether you have selected a stick too rigid or too limber for the size line you will be using. It should be obvious why this method of determining rod “give” is su- perior to the more common practice of holding out the stick at arm’s length and “whipping” it (especially when the rod is not balanced by the reel and line that will be used under actual fishing condi- tions). Fishing reels should also come under close. scrutiny from prospective pur- June, 1956 4

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chasers. To avoid needless mechanical strain and angler fatigue; the reel should be kept nearly full with line, since con- siderably more line is retrieved per turn by a full spool than by one that is half full, or even less. This means that the buyer will first have to decide how much line will be needed; whether he must be prepared to meet the 100 yard initial run of the bone- fish, for example, or the comparatively shorter dashes of the trouts and pan fishes. In general, it is more sporting—and hence more fun and less fatiguing—to use as small a reel as one possibly can. In any event, the spool should not be loaded to more than 85 per cent of its dry capacity, since the line will tend to swell and occupy more space when it gets wet (this is true mostly in ш case of linen lines). And don't forget, if you do get a big fish on while using a small reel that has no braking provision, watch your thumb! I once witnessed a fishing companion give himself a bad burn simply because no one had ever shown him how to slow down a screeching reel under such circumstances. Had he applied thumb pressure against the rapidly spinning spool face on the inside of the reel housing—instead of directly to the line—he wouldn't have gotten hurt. Not much can be said of lures, of course, since these will invariably reveal their effectiveness only under conditions of ac- tualuse. However, the angler will do well to ascertain beforehand that he will not be attempting to use fresh water artificials in salt water, thereby inviting quick cor- rosion and reduced efficiency. He should also file all hooks that are not sharp. Above all, he will do well to avoid the common mistake of carrying too much in his tackle box, thereby needlessly tiring himself. If he is to use such items as boat, motor and tent on his field trip the wise sports- man will first test these to see that they are in good working condition; that he can operate them easily without assistance should he plan to travel alone. Remem- ber, it is much easier to correct a trouble in the home workshop than in strange sur- roundings. If you will heed these simple rules you'll find fishing to be easier, more profitable— and more fun. ° When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED 12222998 Stops hydraulic » Valve lifter E FRICTION R quus шын at zm ИА АТ H-W-R stops hydraulic lifter noise . keeps your engine clean, restores power . . . gives smoother, quieter per- formance . . . rids automatic trans- mission of jar and jerk. Results guar- anteed or Double- Your-Money-Back! HASTINGS MANUFACTURING CO., HASTINGS, MICHIGAN > HASTINGS Buy these Hastings Products with confidence: H-W-R, Casite, Piston Rings Oil Filters, Spark Plugs

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GET UP AND SGD итн A TRIUMPE (R) FUN! INDEPENDENCE! % `ЕСОМОМҮ! Go where you want to go; do what you want todo. Be independent. Have more fun! Enjoy the thrill of motorcycling at its .. BEST with a gleaming, »precision-made Triumph ! Easy to ride... exciting toown...realeconomy, too—60 to 90 miles and up per gallon. Triumph's two-level cushion seat means real comfort for two! Priced surprisingly low, with easy terms available. See your nearest Triumph dealer for a free demonstra- tion. He will teach you to ride.

o nearest address below. Dept. M | RUSH THIS COUPON tO TUM PNSON MOTORS, INC. THE TRIUMPH CORP. . Colorado St. Towson, Baltimore 4, 267 W. Co Marylan т { Pasadena 1, Calif. Motorcycle R EE the 1956 Triumph { Рато шау Ес Jf under 16 years of age, check { sadaro for special pictures. о : { МАМЕ. П ADDRESS.

PHON pump — — M p Stiff lock? The key to a stiff lock is 3-IN-ONE Oil. Quickly penetrates, lubricates and prevents rust—without leaving gummy deposits as other oils do.

iz —— (: LETT IL "3-IN-ONEʻOIL £^ ^W LEISURE TIME SPENT PROHITABLY Most hobbies are fun but. few are аз. rofitable ^as. woodworking. Handy ousehold articles < 2... children's toys. attractive and-useful furniture fot. the home; 2 = all сап “Бе made. easily and economically with а set.of. Rogers easy-to-follow- Project. Plans. When working with Rogers: Glue you аге: assured: ` maximum. strength. ^ Always uniform. — ready to use — clear-and dependable. —- Rogers Glue is. made Only ftom: the: finest materials. s ~ Send-only 15c for Rogers Special Offer: A- full-sized: jar of Rogers Сібе —.a set of illustratéd, easy-to-follow: Project Plans апа; thë "пез .1955 edition of Rogers: Book of. Woodworking Shop Notes”; E : Leisure time. ca гапа; profitable. Write: TM

е Ъоһ_ satisfying Over 3,885- albs. Actual - Tensile -Strength per 5з Square ‘tnch.. the best LIQUID FISH GLUE 178

QUESTION OF THE MONTH Is the Communist conspiracy to con- quer America an imminent danger at present? Are subversive elements in this country being held in check? Asked of: J. Edgar Hoover, Director of the FBI. y= Communism today does represent a great danger to America. Our demo- cratic way of life is threatened by a gigantic tyranny which already has engulfed mil- lions of freedom-loving people. The Communists seek to establish a dic- tatorship. They would replace freedom, justice and love with tyranny, terror and hatred. : This threat, however, is being met by the determined vigilance of the American people. Using democratic methods, this nation is defending itself against the as- : saults of the Communist International As long as law and order reign and citizens have faith in the democratic processes of government, Communism cannot win in this struggle of ideologies. The FBI, as the governmental agency responsible for the internal security of our country, is keeping close track of Com- munist machinations. Any person can be of assistance to us in this cause. A citizen having information about subversive ac- tivities should contact the closest FBI office immediately. We can conquer this menace. It is the job of all of us. * June, 1956

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Cooling For Your Home [Continued from page 160] set-up can be adapted for ventilation. In those cases where the stove is along an outside wall, the fan can be easily mounted through the wall with its inlet behind and slightly above the burner level. When the range is along an in- side wall or when it is for some reason impractical to cut a hole through the wall, the fan is mounted in the ceiling with its inlet opening and its decorative grill inside the kitchen. The motor and impeller is either inside the stud or joist space or on the outside. Some models are designed so that the motor mounts outside to cut down on noise. In both cases the exhaust opening and its auto- matic louver grill or door is out of doors. ` There are several variations on these two basic installation plans. Let’s say, for instance, that your stove is along an inside wall but you can’t use a ceiling fan because there is a finished room above. In such а case the fan’s inlet and outlet are decoupled, the inlet is placed in the wall or ceiling behind or over the range and the outlet is placed in an out- side wall. The two are then joined with galvanized ductwork hidden in the ceil- ing, walls or cabinets. Most models of : kitchen type fans are designed and built [Continued on page 185] Fan Test CFM Range Dia. © Method Same Fans 16” NEMA 1900-2400 NAFM 1300-1600 18” NEMA 2500-3100 NAFM 1700-2100 20” NEMA 3100-4000 МАЕМ 2100-2700 22” “NEMA 3700-4500 NAFM 2500-3100 24” NEMA 4000-4800 NAFM 3600-3700 30” NEMA 7500-8500 NAFM 5600-7000 Ratings vary depending on test set-ups. Use NAFM rating in case of exhaust fans. Give your home the "custom touch” with fir plywood. Whether you use it for smart, good- looking built-ins... strong, rigid subfloors and sheathing ...or distinctive exterior siding — you'll find fir plywood fits your plans and your budget. Created by nature, improved by man, fir plywood is real wood made larger, stronger -. . better looking and more versatile. Grademarked for your protection, fir plywood comes in standard grades as well as special tex- tured oroverlaid panels. DFPA indusiry grademarks attest quality, performance, value. Ex жирне а (лола; See your lumber: dealer г or write (US A Only) Douglas Fit Plywood Association, Tacoma 2, zWash., Dent. 12, Please order plans by name, enclose 10c for each. : When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED

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Strike It Rich [Continued from page 163] tape, the tube of silicone grease, a small can of shellac or other oil base paint; the 6199, a piece of either silk or rayon cloth, and the aluminum crystal holder. Fill the top part with silicone grease, working it to the edges with the finger. Take a piece of 14-inch thick sponge rubber, cut to fit the inside of the top of the can, and with the fingers work the silicone grease into the rubber until it is thoroughly soaked. Now, — insert it in place inside the top of the can. The grease will hold it in place. The rub- ber will keep the crystal pressed against the 6199 when the job is completed. This is important for the probe to work properly. Remove the crystal from the seal in which it came, and holding it with the piece of wrapping in which it came (don't touch it with the fingers), polish one side of it on the emery until all seratches have been removed from the surface. The polish- ing must be done very slowly so as not to build up heat as this will cause the crystal surface to become soft, making it impos- sible to continue the polishing. You will then have to wait 'til it cools and hardens before you can start to polish again. . When all the scratches have been re- moved polish the crystal a little more on the Silk or rayon cloth and try to get a real smooth surface. Next, apply a thin coat of silicone grease all over the crystal and on the part of the 6199 that will be against it and press the crystal in place on the 6199, moving and turning it to make sure you get out any air bubbles. Now, take the aluminum can and place it over the crystal, slowly pressing it down and forcing out the excess grease until you are reason- ably sure it won't go down any more, and that the sponge rubber inside the can is against the crystal. Wipe away the excess - grease and pressing the can down firmly, apply the waterproof tape all around the can and the 6199, making the tape hold the ` two together. Paint over the tape to insure that the crystal will be sealed against mois- - ture since this will ruin the crystal in a few days. If you do not want to do this part of the work, you can buy the crystal already polished, canned and sealed; this however will cost quite a bit more. X ESQ After the crystal is mounted apply a few layers of regular friction tape around the 6199 to take up the space between it and the metal tube so it won't rattle around. Solder a wire from the connecting cable shielding to the metal tube on the inside, grounding the tube. Make this wire long enough so that when you remove the 6199 from the tube you will have a little leeway. Plug the 6199 in its socket. Install the probe into the metal tube and close it up, making sure that the crystal holder protrudes through the hole that has been cut for it in the other end of the metal tube. Having done this, the instrument is now ready foruse. Plug the probe into the main cabinet and turn everything on ex- cept the HV. Adjust the set as described earlier so that it is ready for use. Now, turn on the HV and readjust where neces- sary. It is a good idea to get a piece of radioactive rock to test with. "There are several places that sell these, one of which is Ken Research, 525 Rivervale Road, Rivervale, N. J. They have calibrated samples with which you may also check the calibration of your completed scintil- lometer. Use these samples to check the calibration on each range of the range switch to see that it is working properly. As stated earlier, if you don’t have the proper test equipment to test the HV, you can find the correct voltage on the voltage divider resistors. First, connect the HV lead of the probe to the last resistor and try to get the instrument to work by set- ting it up and holding a radioactive sample in front of the probe. If it works then leave it as is. If it doesn’t, then you have to determine if the voltage is too high or too low as follows: Slowly adjust the bias con- trol one way then the other; this should cause the needle to swing from one end of the scale to the other. If it doesn’t, the voltage is too high and you need more re- sistors in series. Most likely, however, the voltage will be too low which will be shown by placing a radioactive sample near the probe, moving it slowly closer. The needle will start to rise and as you get closer it will reach a certain point and then start to . [Continued ow page 182] i June, 1956

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4 Golden Hammer Awards [Continued from page 129] Minn. . . . Carl Dakin, Plainville, Conn. . . . Olav Bar- stein, Kristiansund, Norway ... Bill Jenkins, Washing- ton, D. С... . C. Н. Hubbard, St. Louis, Mo. . . . L. S. Crossman, Esquimalt, Canada . . . К. A. Carlson, Goleta, Cal. CERTIFICATES OF MERIT have been awarded to the following craftsmen: E. Larson, Arlington Heights, Ш. . . . Tom Long. Newton, N. C. ... Charles Zepfel, Egg Harbor City, 2 N. ].... Osvald Langdolen, Minot, N. D... . Olge Make it of Aluminum... the metal that lasts ... Outdoors it never rusts, rots or warps... Aluminum is at its best out- of-doors. Strong and rust-proof, it stays new in looks and perform- ance. Its light weight makes it easy to handle or move about. ` And when you use Reynolds Do- It-Yourself Aluminum there are extra advantages. You work it, eas- e. ily, with just woodworking tools. 8 valable Most jobs are well started for you REYNOLDS Do-It-Yourself ALUMINUM By the makers of Reynolds Wrap REYNOLDS METALS COMPANY. 2491 SOUTH THIRD STREET, LOUISVILLE 1, KY. See "FRONTIER,'' Reynolds exciting dramatic series, Sundays, NBC-TV Oxford, Middlesboro, Ку... Montreal, Canada . . . Kenneth Segura, Beaumont, Tex. ... Keith Bradley, Toronto, Canada... M. Ailshie, Knoxville, Tenn. . . . Joseph Nizolek, Trenton, N. ].... Kenneth Sprague, Kewanee, Ill. ... Roy Parcell, Cleve- land, Ohio . . J. Hewitson, Verdun, Canada . . . Loren Frazier, Ven- tura, Cal... . W. W. McKnight, Helena, Mont. ... К. Sturgeon, Naperville, Ill... Cal. . . . Peter McCowin, Seattle, Wash. Dornsife, New York, N. Y. . Norman Greenberg, Richard Lee, Montrose, . . . Capt. E. L. . George L. McBride, [Continued on page 189] because Do-It-Yourself Aluminum. comes in pre-formed sbeets (8 kinds), in tubes, bars, fittings, rods and special extruded shapes. Use it outdoors this summer for trellises, downspout extensions, patio windscreens. In minutes you'll make driveway markers, ` hose or tool racks. And Do-It- Yourself Aluminum is the one ma- terial for making a screen house or Screening a porch. At hardware and lumber dealers. Call Western Union Operator 25 for the name of the one nearest you. send for EREIE| too! catalog Toa SNAP-ON TOOLS CORPORATION 8078-F 28th Avenue, Kenosha, Wis. Send me free catalog. OCCUPATION NAME ............ ADDRESS . SMES coc ma ees СҮ cess A big, fact-packed catalog full of pictures and tool informa- tion . . . yours Ft the asking. ° Snap-on tools help you han- dle repair jobs faster, easier, better. e Snap-on tools LAST . . . pay for themselves over and ‘over. . Used and endorsed by Ameri- ca’s top-earning mechanics in all fields. Start building your Snap-on set with basic units . ... add other tools any time.

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Build up short leg with New Plastic Wood. Makes a permanent fix that won’t chip, crack or peel. And New Improved Plastic Wood has a finer grain — minimum shrinkage! ‘PLASTIC NEW WOOD? Handles like putty—hardens into wood. SUPERSHOP includes precision- — Us| 8 built 8” tilting table saw, verti- | cal and horizontal drill press, 30” © ША ч arn lathe, sander, grinder. 100% BALL BEARING. Write for FREE catalog, full details, trial plan. 684 Yates Avenue, Beloit, Wisconsin Get New 128 Page Catalog of WOOD AND WOODWORKING MATERIALS таге imported woods, inlays. bendings, matched ply- wood, mouldings, ornaments, etc. Biggest selection | of tools and hard-to-find hardware. Packed with scroll saw patterns, projects, wood facts and money mak- Hi ing ideas. Enclose 25c (refunded on first order) to help pay mailing and handling costs. Write today to FTSMAN WOOD SERVICE CO. 2729 S. Магу St., Dept. G-6, Chicago 8, Ш. LD D.C. YOU HOW to build. 350 amp. welder for your shop or farm from sur- plus aircraft generator. NO REWIND- ING NECESSARY! Guaranteed work- “able plans 50c. Easy and cheap to build. Includes FREE ‘How to Weld'* booklet (reg. $1.00) and War Surplus & Electrical Catalog. SEND 50c TO- DAY for this $1.50 value! *e ASPEEDY- DRILL GRINDING GUIDE MAKE OLD DRILLS LIKE NEW... (Ù For repointing dull end broken twist drills up to 1/5" in diameter. One piece cast inum. Simple. Anyone can use it. Order yours to-day. $1.00 post- рад. BRASS CASTING Р. О. Box 3056 19' CRUISER KIT $499 .50! SEND 106 for KIT CATALOG! Includes Hardware -Trailers-Fiberglas Buiid over 50 modern boats from large scale plans, available with FULL-SIZE patterns, new PRE-FAB ; "D i t Gra Tra frame kits! All : prams to cruisers, 6 to 25 ft. Ма AS Best buy for Amateurs! SEND i0¢ for CATALOG. [82 niue ER. А ; A e Sirike It Bich [Continued from page 180] fallagain. This simply means that the 6199 is drawing more current than the HV cir- cuit can supply, which in turn is dependent on the voltage supplied. This means that you need less resistance in series. Connect the HV lead to a tap on the HV divider, which is nearer to the vibrator, and try again. Keep doing this until you fird the point that will allow the needle to read full on the first range and stay there, even with a highly radioactive sample, and when you remove it the needle should again drop to a low reading. In this circuit, the de- sign is such that the needle moves up faster than it moves back. It is better this way because we want the set to give an imme- diate reading when placed in a radioactive field. The time it takes the needle to swing back is not nearly as important as the time it takes to swing up. The best method of setting up the scin- tillometer is by first turning on the two switches and allowing about one minute to warm up. Adjust the range switch to the No. 2 position. Next, adjust the bias control for a full reading on the meter, and very slowly back it off until the needle jumps back to a lower reading. Continue adjusting in the same direction as long as the needle keeps moving down. When the needle stops moving you have arrived at the correct setting for the bias control. Now adjust the zero control so that the meter reads just a little above zero. The set is now ready to be used on this range. When you change the position of the range switch, you may have to readjust the zero control. Once the bias control has been adjusted you should not need to touch it again unless the batteries become worn. In six months we have found that the only batteries that needed replacing were the ones used in the vibrator circuit. When you have completed the instru- ment to your satisfaction close up the cabi- net and tighten all screws and stand back and admire the work you have just done. You have built a truly wonderous device; an instrument that may well make you as rich as it has made many other people. ° [See Parts List on opposite page] June, 1956 ud E

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ы ees eem inen! IJI NJ МЭ се cn с» PARTS LIST METER AND COUNTER Cabinet; ICA #29801 Meter 200 microamps; Weston розы 506 Switch 6pos 2 ckt; Erie # 3612-03 Switch 2pos 4 ckt; Mallory # 3242J IN64 xtal diodes 1U4. tubes Sockets with shields, 7 pin miniature Transistor CK722 Transistor CK721 Control 10,000 ohms, small Control 2,000 ohms W/W, small All Resistors 1/2 watt 10%, or better ES es aun een cum ia sten | woes on) mee amen mus IN). 560 ohm 1,000 ohm 1,300 ohm 1,500 ohm 27 K 56 K 82 K 150 K 390 K 470 K 2.2 meg 4.7 meg 6.8 meg 10 meg 20 meg Condensers 2 l 2 l i 100 mmfd 200 mmfd 0.01 mfd 0.03 mfd 10 mfd 10 volt; Electro Batteries 3 l | U с = — cp XA wow Flashlight, size D cells RCA VS088, 6 volts or equiv. Eveready 467, 67'/2 volts or equiv. HIGH VOLTAGE CIRCUIT Vibrator HV supply; model # МҮТ-10 HV selenium rectifier; Bradley J} SE245 Toggle switch 10 meg 2 watt resistors, 10% or better 0.01 mfd condensers, 6,000 volts PROBE UNIT 10 in. length steel tube, 2-in. dia. 10 ft., 3. wire shielded cable {2 wires plus shield) Duodecal socket; Cinch Jones # 3B12 #6199 RCA Photomultiplier tube Thallium activated sodium iodide xtal 1 in. dia., '/2 in. thick oz. tube silicone grease Aluminum can to hold xtal (use old filter can, 1% in. dia., rip open and clean out) 220 mmfd condensers 20 meg 1/2 watt; 5% 10 meg '/2 watt; 5% NOTE: МЕСНАМІХ ILLUSTRATED has made a special arrangement whereby readers may purchase all parts of the Scintillation Counter as a kit for $110.00, plus postage, from Lafayette Radio, 100 Sixth Avenue, New York 13 N^: AU TOMATIC LUBRICATION FOR YOUR CAR WEITH THE NEW Multi- If you own a late model Ford or Chevrolet, this is for you. With a mere press of a button on your dash, all chassis points are high pressure lubricated in seconds ... guarantees that smooth “‘Just Lubri- cated” ride every day... provides won- derful, time-saving convenience... adds years of economical car operation. The Multi-Luber has been exhaustively tested and is available on current models of one of the largest car manufacturers. Buy it installed from your car dealer, garage, or service station—or install it yourself. Kit includes com- plete instructions for quick and easy installation. Slightly higher in Canada IN-KITS - : AS LOW AS INSTALLATION j LINCOLN ENGINEERING COMPANY, St. Louis 20, Mo. Please send me your illustrated leaflet describing MULTI-LUBER, and the name and address of my nearest Multi-Luber Dealer. ў STATE 27. (Please print ог typewrite) 3467 p cel 183 aeo — л —— —— — veem seere cema —— — —— į E

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` Photography Today | | [Continued from page 153] Excellent illustrations in the instruction booklet adequately cover the loading oper- ation. After loading, the: exposure counter is set at 16 for a regular 20-exposure roll, or at 29 for a 36-exposure roll. These being the number of stereo pictures you get per roll of.35mm film. As you.shoot, the ex- posure counter will tell you how many pictures you have left, not how many pic- tures you've taken. We prefer it the other way around—the way itis on most cameras —with the exposure counter telling how many pictures have been taken. The film advance and rewind knobs are large enough so that they are easy to manipulate. As the film is advanced the shutter is automatically readied for the next exposure. If the film is not advanced the shutter will not operate. Good for pre- venting double exposures. Rewinding is easy. There is a little but- ton next to the exposure counting wheel that is depressed and turned to the R posi- tion and the rewind knob is turned in the direction of the arrow: There is a socket on the bottom of the camera for mounting on a tripod. And on the shutter button, provision is made for inserting a cable release. Taking indoor flash pictures with the Stereo Graphic requires a minimum of photographie knowledge. First of all the camera is sold complete with the flash unit. And it is attached by sliding it into the clip on the top of the camera. Contact is made in the shoe without need for extra cables or wires. Care should be taken not to have a bulb in the flash unit while attaching it to the camera—it might fire. The camera is synchronized for M type bulbs. There is no provision for X or zero delay syn- chronization. * - The camera is easy to handle and fits i _ into the hands comfortably. It is sold with a leather case and the above mentioned flash unit. For its price of $79.50, it’s a pretty good buy for the beginner in pho- tography whose technical knowledge is limited. : The Sekonic Miniature In these days of miniaturization it was only a question of time before exposure 184 meters felt the squeeze. .And, the most “squeezed” meter we have seen to date is the Sekonic Compact exposure meter imported from Japan by Spiratone, Inc. of 135-06 Northern Boulevard, Flushing 54, New York. Complete with a leather case it sells for less than $10. This meter which measures 1% by 1% inches and is only % in. thick, has a clip designed to fit the standard accessory shoe on most American and foreign cameras. It is calibrated for ASA speeds from 10 to 800; shutter speed possibilities go from 4 -seconds to 1/1,000th of a second. The dia- phragm values range from f-1.0 to f-32. A translucent screen enables the meter to be used for incident light work. From a me- chanical standpoint this meter seems to be very well designed with evidence of good machine shop practice present. The Retina Illc Eastman’s latest, the Kodak Retina Ше camera, seems to have been designed to anticipate every possible improvement a miniature camera could expect to have in the next five years. In addition to a built- in exposure meter, the range finder is coupled with the view finder. The front element of the taking lens can be removed: so that interchangeable lens components for telephoto and wide angle work can be installed. The meter is ingeniously de- signed so that it can be used under very poor light conditions. To use the meter a ring is turned so. that a pointer to which it is attached is directly over the needle actuated by the light cell. The correct shutter speed will then lie opposite the ap- propriate diaphragm setting. Some other features about the camera which impressed us were the rapid wind lever, the built-in self timer, the close focusing range, the slow speeds (up to one second) the built-in film indicator and the flash synchronized shutter (electrical con- tact however is made through a cord, not through a shoe as with some cameras). The camera, made in Germany and im- ported by the Eastman Kodak Company of Rochester, New York sells for $190.00. A leather “eveready” case costs $13.50. 9 —Walter Chandoha June, 1956 ө vM pog

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Cooling For Your Home [Continued from page 179] so that a remote installatino of this sort is possible. Manufacturers do not, how- ever, recommend duct lengths of over ten feet for maximum efficiency. A duct may also be used with ceiling mounted fans. With the inlet, motor and impeller in the ceiling, a duct leads through the wall space of a room above to an exhaust capped with a suitable cover on the roof. The duct can also go directly through an unfinished and unvented attic space to th roof. : Another variation involves mounting the inlet in a ventilating hood placed over the burners. placed in the lower shelf of a kitchen cab- inet over the stove with a duct connecting itto a wallor ceiling outlet. The duct may be neatly hidden in the cabinet in this in- stallation. Either scheme will provide completely satisfactory results. | Whatever the fan type you choose and regardless of where you mount it, periodic service will guarantee that you will re- ceive years of satisfactory operation. The points to check are: : The blades and centrifugal impellers should be cleaned with a good grease solvent. Motor bearings should be lubricated with a high grade motor oil, of a weight specified by the manufacturer, once a year. The V-belts of indirect drive fans should be adjusted for proper tension (about one inch of slack). Electrical wiring and connections should be looked at once a year and checked for tightness, fraying and burns. Hold down nuts, screws and bolts of attic and kitchen fans should be checked season- ally as should the various nuts and bolts on window fans. Care in this connection will prevent noise. If you have carefully selected a fan with a proper rating for the job you want it to do, have properly installed it, and keep it well serviced and clean you will enjoy many years of trouble-free service. And you will in the long run save yourself money on expensive cleaning, redecoration and home maintenance bills to say nothing of the cool-comfort you will experience in the summer. ® When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED Or for that matter it can be FEW DOLLARS BUILDS A BREEZE - WITH EASY TO ASSEMBLE FAN KITS SAVE UP TO 75% on WINDOW & ATTIC FANS. The New All-Purpose Fan.Kits insure de- pendable performance as Window Fans or for Standard and Hor- izontal installations in attic. No addi- tional parts needed. KITS OF PARTS, with step-by-step in- structions, include: Aluminum fan spider, Masonite blades, Shaft, Oilite bronze bearings, collars, pul- leys, belt and bolts. No special tools or skill are required to install your: own modern home cooling system . . . Invigorating, refreshing outside breezes can now. cool your home at the lowest price ever. The Fan Kit, assembled with ease by thousands and sold on a money-back guarantee, is now built for window and Standard or Horizontal attic installation. Thoroughly tested for dependable performance, every kit includes all the parts you need plus complete instructions. The only additional require- ments are a few pieces of lumber for fan housing and a new or used 14 HP 1750 RPM motor. Sizes are available for every need. 30" Fan cools average home, 6000 CFM .. ....$14.95 36" Fan cools larger homes, 8000 CFM : .$17,95 24" Fan cools smaller homes, 4500 CFM .. .$13.95 20" Fan cools Apts., Offices, etc. 2800 СЕМ ...........$12.95 You buy direct from Manufacturer. Orders accom- . panied by check or money order shipped postpaid. Deposit of $3.00 required on C.O.D. orders. Immediate | delivery. Satisfaction guaranteed. Circular Free. Dealer inquiries invited. FAN KIT COMPANY 154-A, NO. BELVEDERE MEMPHIS, TENN. SLE SENS ү ДЫН Кырс cero

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chase. Additional cartridges: $7.50 per 100 rds. 20 rds. $2.95. RUSSIAN RIFLE AMMUNITION FREE 20 rounds full jacketed ammo included with each rifle pur- This ammo is for the Russian Moisin 7.62 MM, and also for the Moisin Nagant. We also now have 7.62 MM softnose hunting ammo., 150 gr. for deer, bear and No. Amer. big game, GOLDEN STATE ARMS CORPORATION 156 ARMORY BLDG:, 1165 E. Colorado St., Pasadena, Colif. This is the late Russian Model 7.62 MM Moisin Rifle, appr. 30" barrel. Mechonicolly perfect. Outside: good. Bore: fair. Ballistics: 2820 FPS with 150 grain bullet. Am- munition ovailable everywhere in U.S., an excellent hunting cartridge. Hinged floor plate. Russion ordnance marks on receiver. The Russians won the International Mect in Vene- zuela (1954) with this model rifle. These guns were confis- cated from Communist revolutionaries and placed on the free world market. They are of the type used by Red Chinese in Korea. The sale of these guns in no way aids any country behind the iron curtain. A Once-In-A-Lifetime collector's item. This is the lowest price we hove ever seen which would ollow a man to equip himself for big gome hunting. For C.O.D. send $5 deposit. Calif. residents add 4% stote tox. BUY TOOLS. PHOTO EQUIPMENT, SPORTING GOODS, МЕССИ JEWELRY AND THOUSANDS OTHER NATIONALLY B ADVERTISED PRODUCTS AT BIG DISCOUNTS. SAVE ON i OWN PURCHASES. BIG PR PROFITS SELLING TO OTHERS. V POSTCARD BRINGS FREE COPY "THE WHOLESALE PLAN? AMERICAN В BUYERS SERVICE Рт, Hertel. Station, Dept. 19, Buffalo 16, New York DO MORE PLANING JOBS WITH LOW COST BELSAW LOW DOWN PAYMENT ASY TERMS 147 3 to 34’ a minute • Provides for Кр Knives in the Cutter- & head • Attachments for Jointing, Rabbeting, Tongue, Matching, Groove. Convert low cost rough lumber into high priced stock. Easy- to make foring and popular patterns. Send Today @ — for FREE Literature and Prices. " Belsaw Machinery Co, 2046 Field Bldg., K.C. 11, Mo. Exclusive MONEY-MAKING Features: Full 1247 x6” capacity * Power feeds at ELECTRIC WELDER 45.55 The "Little Marvel" all-metal welder. 5-year written guarantee. Welds i6" metal or money back. Repairs tanks, tools, fenders, machine parts, etc. Complete with everything —rods, unit, eye shield, directions. $6.95 : plus 50c postage. Flame torch accessory for Soldering, cutting, brazing $3.95 complete with carbons, brass rods, flux. $2.00 deposit on C.O.D. 34" 75 amp. Transformer Welder $21.95 F.0.B. ESSAY MFG. CO., Dept. 101, Quincy 69, Mass. 14" Model Pictured _ 42 TOP EN PERFORMING MODELS, 8" thru 18^ : s Р n. from $39.25 incl. frt. Runabouts, Cruisers, Convertibles, Fishing, etc., for every purpose with modern styling, advanced design. No ex- perience necessary, omateurs can easily assemble. Save Và 1074 "foctory-built" prices! FIBERGLAS, TRAILERS, ACCESSORIES [n GER INDUSTRIES; INC: BOAT KIT 3404 Lyndale $: Minneapolis-8; Minn. NOW- 32 PAGE BOOK filled with photos, drawings, specifications, records, wholesale price, and Rider Agents plan if no dealer near you. Send 25c for book, or send $1 (refunded fizst order) for it plus actual operating book and service manual. MIDGET MOTORS MFG. CO., ATHENS 3, OHIO Bonnie II [Continued from page 168] For auxiliary power the boat has a 215-hp, air-cooled, 4-cycle, single-cylinder engine. Made by Briggs and Stratton, it weighs just 40 Ibs. and is priced at about $52. This engine, with the throttle control located conveniently on top, will move the boat along smoothly at about five knots. A 2:1 reduction gear cuts the boat's speed to less than one knot for trolling, yet allows the engine to operate efficiently within the recommended rpm. The reduction gear is fabricated from stock bearings and pulleys and mounted on a non-corrosive frame with the engine. А simple, two-position clutch connects the engine to the shaft. In- cidentally, the 9x6-in. propeller, bronze shaft and stuffing box were bought in a surplus marine center for less than $10. Construction of the engine mount is de- tailed in two. drawings. The engine stringers are notched into the floor beams and frames and leveled off. As the bottom slopes upward toward the stern, the notches at frame No. 5 will have to be ‘somewhat deeper than those at No. 4 to accomplish this. When it is. done, the stringers are lag-screwed to the frames. The exact angle of the triangular pieces on which the engine rests will have to be de- termined on the job. When it is accom- plished, temporarily bolt the pieces in place on the stringers and place the engine upon them. Determine the spot where the shaft will go through the bottom of the boat and cut a l-in. wide slot through the keel and keel- son at this point. The skeg drawing shows about where this slot will be, though it will vary slightly in different boats. Make the skeg as shown, assemble with screws and marine glue and shape the top to fit flush June, 1956

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against the keel. Also, be sure the slot in the skeg is roomy enough so that the shaft will not bind. : Place the skeg up against the keel and wedge it in place with a stick between it and the floor. Then get down on hands and knees and peep through the shaft hole to see if it lines up with the engine coupling. A light shining on the coupling facilitates this work. If the shaft opening is in cor- rect alignment, the coupling will appear as a perfect circle in the exact center with none of its inside walls visible. However, chances are that some adjustment of skeg and motor will be required before every- thing lines up. When you think you have it, run the shaft itself into the opening and push it into the coupling. It should go in quite easily if the lineup is correct. Check to see that it revolves freely without bind- ing and, when satisfied, bore holes through the keel from the inside for the lags and bolt that will hold the skeg on. Then re- move the skeg and cut a canvas gasket to fit between it and the keel, allowing a hole for the shaft. Soak the gasket in marine glue, put it in place and fasten the skeg. Then replace the shaft and secure the en- gine permanently. The rudder is extremely simple, being cut from a piece of 34-inch fir plywood to the shape and dimensions given in the drawing. The tiller may be either ma- hogany or oak. It is held to the rudder by side pieces of oak. А single carriage bolt pivots the tiller assembly on the rud- der, allowing free up and down movement and easy disassembling. The inside of the cabin and cockpit will not be described in detail, as each builder wil have his own ideas about how he wants them arranged. However, a few general suggestions may be of help. You will probably want two bunks in the cabin and there is ample room. Let them run from the aft cabin walls forward and diag- onally in toward the center of the boat un- til they almost meet in front of the mast step. This latter, by the way, should be put in before the bunks and fastened to the keel with two carriage bolts run through from the outside. It is suggested that two seats be installed lengthwise on either side of the cockpit, at -a convenient height. Plywood, % or 34-in. [Continued on page 188] When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED AMES Make Floors, Patios, Driveways and Walks Look Different — use ROX TESTED FOR Gh E s YEARS EB. г a Something new — == and exciting in ` ; decorating! Now ~ Rox shows you how to design a shuffleboard, a hopscotch block and many other interest- ing or decorative patterns for porches, base- ment floors, driveways and patios. Or, if you are tiling your floor, seal out moisture with Rox first. And remember . . . Rox is guar- anteed not to blister or peel! Beautiful, Durable Exteriors with ROX - Masonry walls absorb tons of water—this water, if not kept out, can de- кее masonry. Rox 2 ecomes part of the a НЫ. masonry surface itself as (aH H HI Es it seals this surface and After protects against water even in gale driven rains. Rox adds distinctive exterior beauty. - Guaranteed Protection Against Water Leakage! Rox guarantees E to protect your base-* ment against | water leak-^ age. Convert it to a usable recreation room or workshop where tools are safe from moisture with Rox. . Before Helpful Booklet lilustrated in color to help you apply that professional decorator touch as you protect and beautify your base- ment and masonry surfaces. Dia- grams and explanations to make shuffleboard and other games or decorative designs on floors, patios, driveways, walks, еѓс., and give new interest to masonry walls. Send 15c for handling. Available in 5 colors and white a? authorized Rox dealers in U. S. and Canada or write Rox Producis Co., Dept. M16, Detroit 27, Michigan. © Rox PRODUCTS Co.

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Bonnie Ii [Continued from page 187] thick, is s ideal for flooring, both in cabin and cockpit. Cabin floors are supported by the floor beams. In the cockpit it will be nec- essary to screw extra supports to the beams and cut the floor boards to fit around the motor. Incidentally, if you de- cide to pipe the exhaust out through the transom, a hole should be cut in one of the floor boards to allow the pipe clearance. Flexible metal exhaust tubing is obtain- ` able at most marine supply stores. Moldings conclude the woodwork. Use 1-inch quarter-round along the deck cabin seam, and 1-inch half-round along the deck-topsides seam and cabin roof seam. Set all molding in Kuhl's bedding com- pound and fasten with countersunk, plugged screws. Dick Donohue picked up his mast, boom, sails and rigging secondhand for $75. For those of you who might not be so lucky, spar construction is detailed in the draw- ings. Note the use of filler blocks in the hollow mast wherever hardware is used. Mast and boom are finished with four coats of top-grade spar varnish, sanding lightly between coats. A paint job completes the boat. The last touch is the final coat of bottom paint which is applied just before going overboard. * .BILL OF MATERIALS, BONNIE 11 Quantify Dimension Use MARINE PLYWOOD | panel 38" x4' x12" Side planking | panel 3" x4' x8" 2 panels 3g" x4'x12" Bottom planking 2 panels 35"x4'x8" 2 panels — 3$"x4'xl2" Decks, cabin roof, hatches and 2 panels /x4' x6" joiner work -I panel 3e" x4'x12' Cabin sides, back, doors and 1 panel 35"x4'x8" splashboard 1 panel 34"x4'xb^ Rudder, centerboard, skeg sides, jumper strut OAK “| piece Ta" x2" x9' Cabin roof beams | piece TA" x5" x16" Keel | piece 7A" 'x534"x3" ^ Skeg core YELLOW CEDAR | piece 34" xT34" x16" Keelson 2 pieces T” x134"x19" Sheer battens 2 pieces 7s" x234" x18" Chines 2 pieces — 34"x2V,"x18" Deck longitudinals | piece 7f" x 134" x9" Cabin roof stringers PHILIPPINE MAHOGANY 60 lin. ft. %”х2%” Frames _ I piece 3”х6°”х&'” Stem | piece 3"x6"x8" 1 piece 3"x8"x8" | piece 34"x3"x12" | piece 2"x734"x3' I piece 11⁄4” x8" x2 | piece 1% ”х35%”х10” | piece I"x3"xb' 2 pieces 34" x2V4"x10^ | piece 155"x234"x4' 2 pieces 34"x12"x9" 29 lin. ft. 34"x8" FIR | piece 1s" x534"x 127 1 piece 1s" x2V4"x18^ 35 lin, ft. 34" x34" sq. 50 lin. ft. 1” half-round 30 lin. ft. 34” quarter-round | piece Z"x2"x6' SITKA SPRUCE 2 pieces — l/"x3"x28' . 2 pieces 34" x3"x28" 1 piece 34" x4"x9' -3" FASTENINGS 2 gross 2" No. 10 6 gross I!" No. 10 6 gross 11⁄4” No. 8 1 gross I” No. 8 1 gross i" .8 14 4V2"x5/ 16" 18 b xa" 7 7"x5/ 15" 4 2"x5/16" 12 3"x5/16" 6 5"x5/16" FITTINGS AND HARDWARE ` Mast step Ex Mast pardner 4559 = Transom frame Transom knee Breast hook, stern knees Centerboard bed logs Centerboard trunk ends Hatch slide rails and ends Tiller Centerboard trunk Transom and cabin front Deck beams Cabin uprights Cabin roof carlins Molding Molding Engine stringers Mast es Boom Flathead brass screws Carriage bolts Lag screws ? Note: numbers in parentheses are taken from the catalog of Armstrong and Galbraith, Inc., 226-228 Fourth Avenue, New York 3, N. Y 2 5" diameter (317) Forward portlights 5 5" open base (544) Boat cleats 2 4" (545) Bow chocks l 4” (119) Straight chock {stern) I “No. 2 (608) Mooring bit 2 Size No. 0 (1071) Pintles $ 2 (1073 Plate gudgeons (rudder) 3 6 5/16" (453) Rigging turnbuckles 3 35' 5" (1849). Sail track l Gooseneck to accommodate boom 4 ‚8” (569) Ghain plates 2 V" Lip leaders i 2” diameter (892) Masthead sheave І Stemhead plate | (1047) Clew outhaul [| Мо. 6 (5!) Fast eye block 2 No. 5 (100) Swivel eye blocks, single | No. | (827) Centerboard block 1 2 sq. ft. Vs" Plexiglas Ports € &0" "x" Bronze strap (tangs) Sf 150" Vs" diameter Stainles steel wire 0 MISCELLANEOUS 2 quarts copper bottom paint; /2 gal. Cascophene waterproof glue; 2 gal. yacht white; № gal. seam compound; Mahogany stain and filler; | pt. Kuhl's trowel cement. When answering advertisements please mention V2 gal. canvas cement; V. spar varnish; 2 lbs. Kuhl's elastic blue marine deck paint; ! qt. red lead; MECHANIX ILLUSTRATED 7 à June, 1956 0: А Ad

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келесе Gold-n Hammer Awards ғ Continued from раде 181] Venice, ._il... . . Robert W. Allen, Olympia, Wash. . .. Emilio Iannuzzi, New Rochelle, N. Y.... Howard Dickinson, Auburn, Mass. . . . James Eggers, Little Rock, Ark. . . . Kent Elworthy, Erlangen, Germany ... Richard McBroom, Van Nuys, Cal.... Rudolph Pa- lumbo, Corona, N. Y. . . . Fred DeBoer, Chicago, Ш. . . . ВШ Inbody, Findlay, Ohio . . . C. F. Cadegan, Wexford, Canada ... Earl Kincaid, Jr., Geneseo, Ill. .. . Howard Murphy, Milton-Freewater, Ore. Watch for the names of more winners next month. 9 Telescope Макет” s Page [Continued from page 143} going to work with and come up with a mild form of conjugate magnification. From scope No. 2, remove the two screws that hold the large Kellner ocular and un- screw it from the tube. Now unscrew the headless screw which secures the reticule assembly within the eyepiece assembly. This is at the “field” or large end of the eyepiece. After removing the reticule as- sembly replace the ocular in the tube. If you want cross hairs in your scope leave it in. But remove the reticule from the sec- ond Kellner. Now, let’s recapitulate to avoid any mis- takes. So far; we have been at work on the powerful erecting or ocular end of the scope which is contained in the 11%-in. length of tube with the iron collar. In ad- dition to the ocular (with the reticule re- moved) which will be the “eye” end of this scope, we have left in the tube one of the erecting achromats. We now screw the second Kellner ocular obtained from scope No. 2 into the other end of our 11% in. tube, leaving one-quarter inch of threads exposed. Let's take a look at the upper or dis- carded half of the M-70. We discarded the single element lens near it, for it has little “light grasp.” But we do remove from this front tube assembly the 1l5-in. coated achromat in its brass cell block found at the other end of the tube (see E) for this is to be the main objective of our converted telescope. This OG is so well designed. It will stand high magnification without breaking down in performance in its new role. Most of the optics in the M-70 were made by Bell and Howell and other noted optical houses. [Continued on page 190] a EE а eR Rr ERE. EE ste ANE S REN en A Ы ee ET EA When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED Now! Cover plywood — edges with real wood | New Flexible Weldwood Wood -Trim' Avoid unsightly edges in building any plywood project— —tables, desks, cabinets, etc. Give them a “рго’ finish with Weldwood Wood-Trim. So flexible you can beautify any edge—straight, curved, angled. In handy rolls, Wood-Trim is a cinch to apply. No clamps, nails, hot iron, etc. Just use Weldwood Contact Cement or Presto-Set® Glue. Countless Decorating Uses! Trim lamp shades with Wood-Trim! Decorate picture frames! Smarten cof- fee tables, clocks, waste baskets, etc. 8 ft. rolls 1” wide. Oak, African Ma- hogany, Walnut, Birch, Fir, Korina. («€ For perfect wood finishing jobs, use FIRZITE and SATINLAC Another M weldwood Wizard 5 At hardware, paint, | lumber dealers. Writefor freeleaflet *Trade Mark to Dept. MI 6-6 WT. UNITED STATES PLYWOOD CORP., BOX 525,NEW YORK 46 Сао С TopPerformance, Design, Styling! Over 70 Models World's largest line! Over 200 Boats: Kits, Formed -Hulls, Semi & Custom-finished! АП types: Proms -Cruisers! Easy to build! Flyingstern, Tredronic bottom, Bulkhead construction! " Send 25¢ for KIT CATALOG + 52pages: Includes Victory Series, hardware, paint accessories, Fiberglas! Send $1.00 for Catalog Plus EP me "Boating Handbook" . DEALERS-AGENTS INQUIRE BOAT PLANS War rae selection avar 0рет fl & PATTERNS for ameteurs: АП types: prams, kayaks, racers, Frame-Pac Kits runabouts, catamarans, houseboats, cruisers - inboord-outboard 6-40* wood -plywood-steel ! Send 25; for PLAN CATALOG Catalog PLUS " [M ing Handbook" $1.00. =? ый

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‚ scope as a telephoto lens. We'll furnish a & War Surplus Liquidation! M-17 8 POWER ELBOW TELESCOPE Perfect for Telephoto Shots: $200 Value for Only $12.50 Postpaid Amazingly brilliant viewing! This is the same telescope being used to track guided missiles. A previous issue of MECHANIX ILLUS- TRATED featured a story on how'to use this direction sheet -telling how you can adapt cameras with removable lenses. Scope has big 2" objective—Kellner eyepiece—Amici erecting prism—4 built-in filters—reticle illumination. Excellent for finder on an astronomical ‘telescope. Easily mounted for terrestrial observation—viewing moun- tains,’ ships, scenic views, ete. The focusing 28mm F.L. eyepiece alone is worth more than $12.50. Е И Ка ане Зас ..$12.50 Postpaid Stock Мо. 70,065-В - BUILD A SOLAR ENERGY FURNACE! A fascinating new field. You can build your own Solar Furnace for experimentation—many practical uses. It’s easy—inexpensive. We furnish instruc- tiom sheet. This sun powered furnace will generate terrific heat—produces many unusual fusing effects. Sets paper aflame in seconds. Stock No. 80,040-B - Fresnel Lens, size 1154” x 16%”—1.1. 197 -...$3.50 Postpaid SPITZ MOONSCOPE A precision-made 32 power reflecting telescope Ё —by the makers of Spitz Planetarium. Clearly reveals the craters of the moon, shows Jupiter, other wonders of the heavens. Based on same principles as world's giant telescopes, to any location in the sky. Fascinating 18-pag instruction book 218 included: nstrument E: packed in sturdy cai Stock No. 70,068-B__ Sis. 95 Postpaid WRITE FOR FREE CATALOG “В”! Complete Line of Astronomical Telescope Parts and Assembled Tele- x . Also huge selection of lenses, prisms, war surplus optical instruments, parts and accessories. Telescopes, microscopes, binoculars, etc. Request Catalog ''B' MAKE YOUR OWN TELESCOPE WITH A MINIMUM OF TOOLS. Explore outer space. Complete kits from $4.50. Quality supplies guar- anteed. Pyrex mirrors made to order. Send your mirrors to us to be aluminized with our new hardened Alchrome coating. PRISMS * EYE PIECES * ETC. Send for free catalog. Instruction book 10c. PRECISION OPTICAL SUPPLY CO. 1001 East 163га Sł., New York 59, New York 250 POWER.... onl $ „49 ~ Telescone Lens Kit у SS Conquer Space, Explore the Universe, Planets, Moon Craters, New Stars, etc. Complete Lens Kit consiste; ‘of ВО inch focal length ground and polished eL lens, eyepiecé lenses for 50 POWER, 100 PO 50 PO 200 939 H 250 POWER, апа al) necessary. lens fittings. Easy to rom simple step by step: instructions. (Tripod and mount not Included.) “Money back guarantee. BUSSE SALES CO., Hartford 1, Conn., Dept. ML-39 See the Greatest Show. on Earth with this GIA (T ASTRONOMICAL T LESCOPE сс ready for use. Has 45Х, Ex and E 10 power individually mounted eyepieces with brass focusing tube pus вип pro- lector lens for obsexving 5 and pieces: avaliable each. FOLK “SCIENCE SEEN DE TM. 6 MATTITUCK, Telescope Maker's Pa ge [Continued from page 189] Obviously this converted job must have a push-pull focusing arrangement from the front end of the telescope instead of the conventional rear end method, but since the,scope is only 22 in. long, focusing to infinity is very short. Let's turn our attention to the second M-70 which we have cannibalized. We want the lower end of this tube, the one with the iron collar. Since the Kellner ocu- lar has already been removed, and also the front end of the tube, all that is left inside the tube is the second erecting lens in a brass cell. Remove the three screws hold- ing this cell and gently push the cell and lens out of the tube. Place the empty 1132-іп. tube in a vise and hack saw it off flush with the iron collar which yields a tube threaded at the one and about 615 in. long (drawing D). This tube will be the front end of the new scope and will support our main objective. Screw the threaded end of this tube onto the ex- posed quarter-inch of threads on the second Kellner ocular in our eye erecting system. All threads are matching and will fit.. The brass cell holding our OG has a split spring action and will fit nicely over a piece of standard brass plumbing pipe found at the 60 POWER TELESCOPE VARIABLE EYEPIECE 20X-40X-60X—BRASS BOUND NEW! Three telescopes in one. 3 different magnifications. 20 power for ul- tra-bright images with 40 and 60 power for extra long range. Guaranteed to bring distant objects, peo- ple, sports events, ships, oon, stars, ЕЯ езара аѕ $3.98 Most powerful tions included, Mass production enables us to offer this instrument at amazing price 3.98. Nothing Else to Buy. We pay postage. Get yours at once. CRITERION CO., 331 Church ЗЕ +, Hartford 1, Conn., Dept. BML-41 SKYSCOPE' The 314” dia. reflector, astronomical tele-: scope 1009, American made. Completely mounted. sed by schools and universities for over 15 years. Unconditionally guaranteed. $29.75. Descriptive literature on request. THE SKYSCOPE CO., inc. 475-M Fifth Ave., 17, N. Y. FREE CATALOG UPON REQUEST. Fin ~, ished Optics, all types of telescopic mount- SN ings and parts. Mounted Eye Systems and X Diagonals, Grinding Materials, Pitch and мы ii: Materials. Also assembled scopes; if gall sizes. Money Back guaranteed оп ан 5 f products. Dept. MI-6. ESCO PRODUCTS i ] г S Oakridge, N. J. RS Sales Showroom, 166 Church St., N.Y.C. June, 1956

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hardware store, the plumbers, or at any inches in length. When placed over the Sears store. For this, buy the standard six- expanded end of the short tube holding the inch length of chrome-brass pipe fitting OG it will produce a nice push-pull fit into with one end expanded to 1% in. and the the upper tube of the M-70. other end 1 in. in diameter. The cell with You now have a 20 power terrestrial the OG fits over the smaller end and the telescope. With the right hand grasp the longer end into the M-70 iron tube. This chrome focusing tube at the front end and chrome-brass tube need be only 4% in. focus on an object. For near objects pull long, as the focusing is short. Paint thein- the focusing tube out, for infinity push the side of the chrome-brass tube a dead black. tube in. Focusing is very sensitive. ° Now cut, from a tin can, a sleeve three —H. W. Metzger кон, A NEM DYNASCOPE REFLECTOR - А Superior-Performing Professional-Model Telescope with BAKELITE TUBE ona TWO (50x « vx EYEPIECES ALSO PORTABLE TRIPOD AND COMBINATION NON-FRICTION SEE JUST WHAT YOU GET 1-3" MIRROR, # 12.5, aluminized and overcoated, guaranteed to resolve to Dawes’ limit for its size. 2-36" BAKELITE TUBE. 3-2 EYEPIECES—50X & 100X Rams- dens. 4-CAST-IRON MOUNT. Combina- tion Non-Friction Equatorial & Alt-azimuth. EQUATORIAL & ALT-AZIMUTH MOUNT! Yes, it's really true! The latest scientifically correct reflector telescope COMPLETE with all essential professional features — А triumph of three years of painstaking tests and experiments for higher power, clearer definition ONLY and more durable service at lowest possible price! Never before anything like this new DYNASCOPE Reflector! A proud addition to Criterion's famous family of highest standord Dynascopes. Just match it against any other - scope at $35 or even $40 —for these professional capabilities ond advanced 5-33" TRIPOD of finished hard- wood. е MIRROR CELL—Removable—Ven: tilated. precision features: PROFESSIONAL CAPABILITIES! Guaranteed observatory clearness! Per- fect portability! Prolonged trouble-free performance! Automatically follows the stars in their courses! In actual controlled tests, the new Dynascope out performs scopes of much, much higher cost, and larger diameterl Resolves F. D. B. Hartford, Conn. € Open end & eyepiece covers. most difficult celestial objects, Hundreds of Mountains & Volleys on the Moon, Shipping Wt. 9 ibs. A ә Factory tested to "split" 2 sec- Red Face of Mars, Moons of Jupiter, Rings of Saturn, Stor Clusters, in fact Express Charges 5 | onds of arc separation; also Fo- the finest double Stars. ~ , Collect ; \ = cault, Ronchi and final definition ADVANCED анса FEATURES! The MIRROR: 3-inch Newtonian Re- tests. flector, f 12.5, aluminized and overcoated, finished to exacting specifications and guaranteed їо perform to the Dowes' limit for size of ЕТ The TURE-36-inch BAKE- A portable completely assembled LITE, the strongest, finest insulator known—not subject to mercy of atmospheric changes! The peste a instrument fon y EYEPIECE — not one but TWO Ramsdens—for 50 power and 100 power — both standard equip- orzimmeciatexprecisioniperrorme ment! Also Cast fron smooth-operating combination non-friction Equatorial and alt-azimuth mount specially constructed to guarantee perfect performance on 168 Dynascope — the very same as on fine instruments formerly sold at $44.95. WE'LL BACK iT TO THE LIMIT! Here's your Unconditional Money Back Guarantee: You'll be more than satisfied, you'll be thrilled! You'll agree with the professionals: The Dynascope Reflec- tor is the most flowless instrument made for its size! Ideal for serious amoteurs, classrooms, and as a second portable instrument for professional astronomers! You'll agree too, with leading planeteria and hundreds of individual users who are on record praising Dynascope's incredibly superior performance and durability! You'll be as proud to own the new Dynoscope as we ore to offer it to vou! Immediate shipment. Send check or nd check or money order | today! REPAIR MUFFLER AND E EANAUST LEAKS in 10 min. The plastic gas-tight seal sets hard, - withstands heat and vibration. Prevents \ carbon monoxide gas poisoning. | SETS LIKE А WELD — NO TOOLS NEEDED 97160 fj GUN-GUM _ MUFFLE See Your Neighborhood Auto Accessory and Parts Replacement TERES (2 TREGLOWN CO. INC, FANWOOD 84, М.Ј Е e PISTON SEAL K TRADE MARK REGO. x CANADA: 1368 GREENE AVE, MONTREAL 6 (Prices Higher) о ance. Other Accessories at Small Extra Cost —On Request THE CRITERION MANUFACTURING COMPANY Dept. DM8, 331 Church Street Hartford, Conn. st $4.9 abe fe p Forms self-lubricating seal at piston top. Inserted through spark plug holes. Used approved by motoring experts. - When Answering Advertisements, Please Mention MECHANIX ILLUSTRATED by millions of motorists. Tested and

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AVERAGE . boss? zd FOR REAL JOB SECURITY —GET 1.C.S. TRAINING j 3 The quickest, surest way to impress your boss is to - show him that you're better equipped than the next = guy. And here's where І. C. S. can go to bat for you! m I.C.S. training is approved training! Leading companies know it—and use it! At your request, your boss will get regular reports of your progress with I. C. S. More important, he'll notice the imme- =; diate improvement in your work. 1 LEARN IN YOUR SPARE TIME—SET YOUR OWN PACE I.C.S. instruction is personalized instruction. No interference with other activities. No slow classmates to hold up your progress. You forge ahead as rapidly. as your time and ability permit! ; i E 5 5 1. С.5. Courses are practical, up-to-the-minute. . Are you still making a hit? Are you up for the job What You am ond mieh. you appi н uv ? , i league! You get bedrock facts and theories plus everyday | 25 ahead? Here's а sure way to score Мапу сарде: know-how. Graduates get the famous І. С. S. diploma 55 If your boss is like most, he’s casting his critical eye —recognized everywhere. “I got a break over more on everybody these days. He wants to know how you experienced fellows becaüse of my I. C. S. training,” stack ир. Are you making good—or marking time? says M. A. D., Suncock, N. H. When the changes come, will you go up—or out? This is no time for casual resolve. What you plan QUICK WAY TO TEST YOUR EXECUTIVE ABILITY to do six months from now may be too late. You've Successful men know how to make decisions. Don’t. got to prove your worth —NOW! put it off! Mail the coupon today! © 3 FREE BOOK Free, illustrated catalog outlining opportunities in the field that interests you. Also 36-page, pocket-size guide to advancement, ‘How to Succeed,” a gold mine of helpful tips. Also, free sample lesson (Math). For Real Job Security—Get an I. C. S. Diploma! I. С. S., Scranton 9, Penna. Мер eni ONAL CORRESPONDENCE SCHOOLS |6 BOX 85382E, SCRANTON 9, PENNA. (Partial list of 256 ENS TH ) YEAR Without cost or obligation, send me "HOW to SUCCEED" and the opportunity booklet about the field BEFORE which ! have marked X (plus sample lesson): АЕК QAVATION eeu. ЧЫРТ URAL «LEADERSHIP О плдш ап eronautical Engineering Jr. N ‘oremanship R CONSTRUCTION © Aircraft & Engine Mechanic O Civil Engineering O Industrial Supervision O Air Brake Equipment О Air Conditioning—Refrig. , BUSINESS O Construction Engineering D Leadership and Organization [Г] Car Inspector D Architecture Я O Advertising О Highway Engineering _ O Personnel-Labor Relations — [7 Diesel Engineer & Fireman D Architectural Interiors C] Bookkeeping and Accounting O Reading Struct. Blueprints MECHANICAL O Section Foreman 5 E ВЕ qur a БЕЗ Аата иа цой E UL Engineering AND SHOP STEAM AND z пат imato O Business Correspondence ructural Engineering C Gas— Electric Welding DIESEL POWER ў HAS aS Maintenance m БШШ Кешш s п Surveying and Mapping Ы не Гете O Metallurgy C] Combustion SH. р = є reative Salesmanship ndustrial Engineering 0 Diesel—Elec. © Diesel Eng's Ж р: = Heating се E fede m ; 1 = PUE prama с = ШЕШ Instrumenten а] deus Light and Power t л cto etter-writing Improvemen: rchitectural Drafting ndustrial Supervision O Stationary Fireman О Plumbing 3 O Office Management O Electrical Drafting О Internal Combustion Engines © Stationary Steam Engineering О Reading Arch. Blueprints O Professional Secretary O Mechanical Drafting O Machine Design-Drafting TEXTILE ART O Retail Business Management O Mine Surveying and Mapping ( Machine Shop Inspection O Carding and Spinning (Cartooning a gales mangemani a о Plumbing Drawing and B manne Shop Practice D Cotton, Rayon, Woolen Mfg. * fenographic-Secretaria stimating lechanical Engineering О Finishi d Dyei a HERES dum O Traffic Management O Structural Drafting © Quality Control Ё B Loom Fixie, a Textile Des'ing O Magazine Illustrating CHEMISTRY ELECTRICAL О Reading Shop Blueprints O Textile Engrg O Throwing C) Show Card and Sign Lettering O Analytical Chemistry CJ Electrical Engineering O Refrigeration O Warping and Weaving S O Sketching and Painting C] Chemical Engineering Г) Electrical Maintenance. О Sheet Metal UT i MISCELLANEOUS NSSOMOTIVE a Chem. Lab. echnictan E 39800 О Contracting G Tool Озата Toma ing Г] md Refrigeration 0 Genera emistry ineman 5 SION ( Marine Engineering O Auto Body Rebuilding Г] Natura! Gas Prod. & Trans. HIGH SCHOOL Г] Industrial Electronics O Ocean Navigation П Auto Elec. Technician О Petroleum Engineering 0 Commercial O Good English 0 Practical Radio TV Eng'r'ng [O Professional Engineering C] Auto-Engine Tune Up O Plastics 5 D High School Subjects O Radio and TV Servicing D Short Story Writing O Automobile Mechanic O Pulp and Paper Making C) Mathematics O Radio Operating O Telephony Name. Age. Home Address. - City. Zone. State. Working Hours — AM. to P.M.__. 3 Canadian residents send coupon to International Correspondence Schools, Canadian, Ltd;, Montreal, Canada. . . . Special tuition rates to members of the U. S. Armed Forces. Occupation, DRINTE = ? £s IN. o Ер х OUS C 28.