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Whitcomb L. Judson (March 7, 1843 – December 7, 1909) was an American machine salesman, mechanical engineer and inventor. He received thirty patents over a sixteen-year career, fourteen of which were on pneumatic street railway innovations.
In 1892, Whitcomb L. Judson, an American inventor from Chicago, patented the original design from which the modern device evolved. [1] The zipper gets its name from a brand of rubber boots (or galoshes) it was used on in 1923. The galoshes could be fastened with a single zip of the hand, and soon the hookless fasteners came to be called ...
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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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.
There are so many enduring symbols of Christmas: the trimmed tree, stockings hung by the chimney with care, and of course, jolly Ol' Saint Nick.But for Ree Drummond, there's one Christmas ...
Andy Cohen is spilling the tea on what it's like working with longtime friend and colleague Anderson Cooper. Before SiriusXM's 10th Annual Radio Andy Holiday Hangout (which he co-hosts with Amy ...
Whitcomb Judson (1836–1909), U.S. – zipper Percy Lavon Julian (1899–1975), U.S. – chemical synthesis of medicinal drugs from plants Ma Jun ( fl. 220–265), China – south-pointing chariot (see differential gear ), mechanical puppet theater , chain pumps , improved silk looms
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