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Judson's most noteworthy invention, a chain-lock fastener, was the precursor to the modern zipper which he developed and invented in 1891. [5] Judson is generally recognized as the inventor of the zipper. [6] He also invented a "clasp-locker" automation production machine that made his fastener device inexpensively. [7]
A zipper, zip, or fly, formerly known as a clasp locker, is a commonly used device for binding together two edges of fabric or other flexible material. Used in clothing (e.g. jackets and jeans ), luggage and other bags , camping gear (e.g. tents and sleeping bags ), and many other items, zippers come in a wide range of sizes, shapes, and colors.
It is what clasps the zipper teeth or separates them depending on the direction of movement. Attached to it is the pull tab, the extension that is held when moving the zipper up or down. Some sliders come with a zip-lock feature in that, when the pull tab is lowered, it locks the slider in place and when raised, it unlocks it.
George Washington Gale Ferris Jr., inventor of the Ferris wheel; Whitcomb L. Judson, inventor of the zipper; Charles Rudolph Walgreen, founder of Walgreens; Albert Blake Dick, a businessman who founded the A. B. Dick Company, a major American copier manufacturer and office supply company of the 20th Century. He coined the word "mimeograph".
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In 1891 Chicago inventor Whitcomb L. Judson wanted an easier way to lace up his shoes so he devised a system of hooks and eyes, plus a slide mechanism, to fasten and unfasten the hooks. He exhibited his device at the 1893 World's Columbian Exposition .
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