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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 .
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.
AT&T's long-term debt now stands at $126 billion, down from more than $128 billion in 2022. Shares are up 42% over the past year, according to Yahoo Finance data. Verizon and T-Mobile shares are ...
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The handles can be folded down once the clip has been attached, and can also be removed for a semi-permanent binding. An assortment of binder clips, with an AA battery for scale A binder clip is a strip of spring steel bent into the shape of an isosceles triangle with loops at the apex .
Astronauts Mike Barratt, left, and Tracy Dyson, right, are seen inside the inner compartment of the International Space Station's Quest airlock preparing for a planned spacewalk on June 24.