Gideon Sundback

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Gideon Sundback and the zipper. Seth On June 5, 1909, Gideon married Elvira Aronson, daughter of the Swedish born plant manager Peter Aronsson, in Hoboken, New Jersey. Did you know that Gideon Sundback invented the zipper? In 1917, he invented a thing with teeth that has a handle that you use to pull it up with. Zippers have a pull tab, top stops, slider body, teeth, and bottom stop. The zipper is used in a lot of things like shoes, coats, and a lot more stuff. The patent for the "Separable Fastener" was issued in 1917. Gideon Sundback also created the manufacturing machine for the new device. The "S-L" or "scrap less" machine took a special Y-shaped wire and cut scoops from it, then punched the scoop dimple and nib, and clamped each scoop on a cloth tape to produce a continuous zipper chain. Within the first year of operation, Gideon machinery was producing a few hundred feet (around 100 meters) of fastener per day. In 1914, Sundback developed a version based on interlocking teeth, the "Hookless No. 2", which was the modern metal zipper in all its essentials. In this fastener each tooth is punched to have a dimple on its bottom and a nib or conical projection on its top. The nib atop one tooth engages in the matching dimple in the bottom of the tooth that follows it on the other side as the two strips of teeth are brought together through the two Y channels of the slider. The teeth are crimped tightly to a strong fabric cord that is the selvage edge of the cloth tape that attaches the zipper to the garment, with the teeth on one side offset by half a tooth's height from those on the other side's tape. They are held so tightly to the cord and tape that once meshed there is not enough play to let them pull apart. A tooth cannot rise up off the nib below it enough to break free, and its nib on top cannot drop out of the dimple in the tooth above it. U.S. Patent 1,219,881 for the "Separable Fastener" was issued in 1917.

The name zipper was created in 1923 by B.F. Goodrich, who used the device on their new boots. Initially, boots and tobacco pouches were the primary use for zippers; it took another twenty years before they caught on in the fashion industry. About the time of World War II the zipper achieved wide acceptance for the flies of trousers and the plackets of skirts and dresses.


Work cited

http://inventors.about.com/library/weekly/aa082497.htm http://en.wikipedia.org/wiki/Gideon_Sundback


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