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AmerCable Incorporated

  Articles - How are tires produced - See here how tires are recycled

Tyre - Tires

I. Introduction

A. The History of Tires

The wheel is one of the greatest inventions in human history due to its wide range of applications. These applications include any type of transportation; whether it is people, materials, or equipment being moved. Charles Goodyear invented the first rubber tires in 1839. Before the advent of these tires, riding in a car was very uncomfortable due to the rough ride.

In 1830, Goodyear wanted to develop a rubber product that was useable by the general public. To carry out his experiments, Goodyear bought a truckload of raw rubber from a shoe factory and attempted to turn it into a complete solid. His experiments were halted, when he was sent to prison for not paying his debt from the rubber purchase. This set back did not stop Goodyear. While in debtorís prison, Goodyear continued his experiments with the raw rubber and when he was released from jail, the product he was making had the consistency of gum. This rubber material was called natural or India rubber. Goodyear did not stop there with his experiments. He discovered that he was able to harden the rubber by mixing the rubber with sulfur and then treating it with an acid gas. The rubber ball was tossed around and it accidentally landed on top of a hot stove. To the surprise of Goodyear, the rubber began to change phase and melt, instead of scorching. However, when Goodyear attempted to scrape the rubber off the stove, he discovered it had hardened to the consistency that he was trying to achieve . With the discovery of vulcanization, and the beginning of the industrial revolution in both Europe and North America, the tire evolved from a rubberized canvas protecting a rubber tube to a complex fabric, steel and elastomeric composition.

B. Biography of Charles Goodyear (1800-1860)

Goodyear was born in New Haven, Connecticut on December 29, 1800. With no formal education, he entered the hardware business with his father as a partner in 1821 but later failed and was bankrupt in 1830. Thereafter he turned his talents to the commercial improvement of India rubber, which, until his time was not used much in industry because of the adhesiveness of the surface and because of its inability to withstand temperature extremes . Goodyear began making rubber goods in the fall of 1933, and the material sold for a fairly good price. Unfortunately, this rubber was not perfect. During the summer of 1934, the rubber melted because of the heat and developed and offensive odor. Over twenty thousand dollars worth of products were returned to him and the company .

Goodyear, then went on to develop a nitric acid treatment to eliminate some of the rubber defects and in 1837, he negotiated a contract in which he made mailbags for the U.S. Government. The rubber fabric for the mailbags was not much more successful and proved unsuitable at higher temperatures. Goodyear later became acquainted with Nathaniel Hayward, who was a foreman at a company called the Eagle Company, where he had used sulfur in solvents to permeate the rubber. The two men worked together and made life preservers by the use of sulfurous acid gas and the solarizing process which is the exposure of rubber sheeting to sulfur dioxide and then to the sunís rays. The next year, Goodyear bought this patent from his partner .



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