# MAKING A RUBBER TIRE

MAKING A RUBBER TIRE Produced: 1921 Description The original catalog description provided by the Ford Motor Company reads as follows: “The rubber tree grows in the wet tropical lands about the equator.” World map showing tropical regions. “The rubber producing region of the world.” Map, shaded areas rubber producing. “Wild rubber forests and cultivated rubber.” Map, wild and cultivated areas labeled. “The raw rubber goes largely to the United States.” Shipping routes marked on map. “Rubber is the latex or sap of a tree growing in the wet tropical region.” Forest - close-up of tapped tree - worker tapping tree, containers attached to tree to catch sap, sap dripping - worker empties container into bucket, replaces it on tree - workers in native costumes carry buckets, pour sap through screen into large vat. “There are many ways of coagulating or thickening the latex. Acetic acid is most commonly used for this purpose.” Coagulated rubber in vat. “Rubber when washed and rolled out into sheets of irregular surface is called crepe rubber. In drying, the maximum surface is exposed to the warm rays of the tropical sun.” Strips of crepe rubber hanging - workers sitting on ground fold crepe rubber. “The raw rubber comes to the factory in mats and biscuits.” Workers unpacking rubber from cartons. “These mats are of cultivated rubber from the Island of Ceylon.” Worker displays rubber. “The crude rubber is squeezed between rollers to force out the dirt and impurities.” Worker rolling…

- Kind: Educational
- Year: 1921
- By: National Archives
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/fc-fc-334)
- Licence or status: none stated by the archive
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/fc-fc-334?play=1)