1888, Mr. J.B. Deng Lupu, an Englishman who was a veterinarian in Ireland, obtained a patent for pneumatic tires. At that time, Johnny, the son of Mr. J·B· Deng Lupu, who was 10 years old, bought a three-wheeled bicycle, but because the tires at that time were all solid tires made of hard rubber, it was very uncomfortable to walk on the stone road. His son's complaint inspired Mr. Deng Lupu, so the pneumatic tire that had been forgotten for more than 40 years came out again. With the progress of the times, the pneumatic tire invented by Mr. Deng Lupu was quickly applied to bicycles and quickly entered the automobile field, making great contributions to the development of the world automobile industry.
A tire is usually made of rubber and is an element that covers a metal or wooden rim along the circumference. It is the most important part of power machinery vehicles on land, which is used to carry machinery or cars to make them move and reduce the vibration caused by irregular roads.
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Tire development
Michelin invented an easy-to-disassemble automobile steel ring in 1906, which is convenient for automobiles to use pneumatic tires. 1937, Michelin invented the radial tire, and the inner layer of the tire was arranged radially to improve the handling of the tire, which was widely used in modern automobile tires. 1938, Michelin invented the method of bonding steel wire and rubber, which greatly improved the heat dissipation and bearing capacity of tires.
BFGoodrich tire company also contributes a lot to tires. 19 10, the technology of adding soot to rubber to increase friction and durability was invented, and the tire turned from white to black. 1937 BFGoodrich invented cheap synthetic rubber, and 1946 invented tubeless tire, which avoided the danger of rapid deflation and deformation when the traditional tubular annular balloon inner tube burst.
1964, Stephanie Kwolek, a female chemist of DuPont chemical company, developed a high-strength material Covila, which can replace the inner steel wire of racing tires, and this material was later made into today's bulletproof vest.
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