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Charles Goodyear (December 29, 1800 – July 1, 1860) was an American self-taught chemist [1] [2] and manufacturing engineer who developed vulcanized rubber, for which he received patent number 3633 from the United States Patent Office on June 15, 1844.
Synthetic rubbers were invented in the laboratories of Bayer in the 1920s. [15] Rubber shortages in the United Kingdom during WWII prompted research on alternatives to rubber tires with suggestions including leather, compressed asbestos, rayon, felt, bristles, and paper. [16] In 1946, Michelin developed the radial tire method of construction.
John Boyd Dunlop (5 February 1840 – 23 October 1921) was a Scottish inventor and veterinary surgeon who spent most of his career in Ireland. Familiar with making rubber devices, he invented the first practical pneumatic tyres for his child's tricycle and developed them for use in cycle racing.
Dunlop Ltd. (formerly Dunlop Rubber) [1] was a British multinational company involved in the manufacture of various natural rubber goods. Its business was founded in 1889 by Harvey du Cros and he involved John Boyd Dunlop who had re-invented and developed the first pneumatic tyre: he invented the first practical pneumatic tyres for his child's tricycle.
Seiberling set up a tire building machine in a separate room on the factory floor and provided demonstrations to other tire manufacturers. Goodyear granted 50 licenses on the tire building machine and made an estimated $2,000,000 in royalties. By 1913, over half of the tires made in the U.S. were manufactured on the Seiberling State machine.
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The first bicycle "tires" were iron bands on the wooden wheels of velocipedes. [3] These were followed by solid rubber tires on penny-farthings. [4] The first patent for "rubberized wheels" was granted to Clément Ader in 1868. [5] In an attempt to soften the ride, rubber tires with a hollow core were also tried. [6]
Sheet of synthetic rubber coming off the rolling mill at the plant of Goodrich (1941) World War II poster about synthetic rubber tires. Production of synthetic rubber in the United States expanded greatly during World War II since the Axis powers controlled nearly all the world's limited supplies of natural rubber by mid-1942, following the Japanese conquest of most of Asia, particularly in ...