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The components of a Goodyear welted shoe. A Goodyear welt is a strip of leather, rubber, or plastic that runs along the perimeter of a shoe outsole. [1] The basic principle behind the Goodyear welt machine was invented in 1862 by August Destouy, who designed a machine with a curved needle to stitch turned shoes.
Galoshes are overshoes, and not to be confused with the form of large slip-on rubber boots (known in the United Kingdom as Wellington boots). A protective layer (made variously of leather , rubber, or synthetic ripstop material) that only wraps around a shoe's upper is known as a spat or gaiter .
The sole was designed to provide excellent traction on the widest range of surfaces and have a high degree of abrasion resistance, and was made using the latest vulcanized rubber of the time. The first successful ascent to the summit of K2 was made by an Italian expedition wearing Vibram rubber on their soles in July 1954.
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In the late Middle Ages, additional elements were added, like doubled soles. Later turnshoes often have more elaborate seams. [1] The cross-section image shows how the seams are on the inside; the turnshoe shown has a topband (dark leather edge strip), a heel stiffener, and a rand (a thin strip sewn into the seam between the sole and the upper).
The sole and heel were made from one piece of maple or ash two-inches thick, and a little longer and broader than the desired size of shoe. The outer side of the sole and heel was fashioned with a long chisel-edged implement, called the clogger's knife or stock; while a second implement, called the groover, made a groove around the side of the ...
Styrene-butadiene or styrene-butadiene rubber (SBR) describe families of synthetic rubbers derived from styrene and butadiene (the version developed by Goodyear is called Neolite [1]). These materials have good abrasion resistance and good aging stability when protected by additives.
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