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Coil zipper—also known as nylon coil zipper—is a type of zipper whose teeth/elements are made from coiled monofilament that is traditionally nylon. The coil zipper was first invented in 1940, however not commonly used until the 1960's. [1] [2] The coil is sewn to a zipper tape to make the final product. The final zipper product is completed ...
A coil zipper with its slider removed. Coil zippers now form the bulk of sales of zippers worldwide. The slider runs on two coils on each side; the teeth are formed by the windings of the coils. Two basic types of coils are used: one with coils in spiral form, usually with a cord running inside the coils; the other with coils in ladder form ...
Drawing of 1917 slide fastener patent filing. Talon was the first slide fastener, a/k/a zipper, manufacturing company. It was founded in 1893 as the Universal Fastener Company, manufacturing hookless fasteners for shoes. In 1913 it moved to Meadville, Pennsylvania, becoming the first manufacturer of zippers. The company flourished through the ...
A major technological change came in 1950, when the company purchased a chain machine from the U.S. that allowed the automation of the zipper making process. Previously, YKK zippers were made by hand, and hence had an inferior quality compared to automated zippers from abroad. In March 1951, YKK relocated its headquarters to Chūō, Tokyo.
It seems like metal zippers always have metal sliders, but that plastic zippers can have metal or plastic sliders. It would be good if the article brought out these basic facts more clearly. The teeth or coils are sometimes called elements. - 69.87.203.201 ( talk ) 02:31, 9 February 2008 (UTC) [ reply ]
New York: Equal Protection of Law Amendment. Status: Passed. Some background: The New York state Constitution currently bans discrimination based on race, color, creed and religion. Advocates for ...
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