John Boyd Dunlop was a veterinary surgeon. His son was prescribed exercise on tricycle and to make it more comfortable, he developed a canvas tube filled with air and bonded together with liquid rubber. He patented the idea. In 1889, he persuaded a cycling sportsman to use his tyres and the championship was won that cyclist. The tyres became famous and popular. Dunlop sold his patent in 1896 for 3000 pounds.
http://www.ulsterhistory.co.uk/johndunlop.htm
http://www.ideafinder.com/history/inventions/pneumatictire.htm
http://www.bbc.co.uk/radio4/history/making_history/makhist10_prog10e.shtml
New Concept in Tyre Tweel
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