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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.
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.
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.
Whitcomb L. Judson was an American mechanical engineer from Chicago who was the first to invent, conceive of the idea, and to construct a workable zipper. [35] Using a hook-and-eye device, Judson intended for this earliest form of the zipper to be used on shoes.
Clasp, clasper or CLASP may refer to: Wrist clasp, a dressing accessory; Folding clasp, a device used to close a watch strap; Medal bar, an element in military decoration; Fastener, a hardware device that mechanically joins objects together; CLASP (British Rail), a prefabricated building system "Clasp", a song by Jethro Tull from The Broadsword ...
A lobster clasp, also known as a lobster hook, lobster claw, trigger clasp, or bocklebee clasp, is a fastener that is held closed by a spring. [ 1 ] [ 2 ] The lobster clasp is opened or closed by actuating a small lever, after which it is attached to (or removed from) a short link-chain or a ring-like structure.
In drum hardware, memory refers to any system that preserves the adjustment of a stand, boom or bracket when the kit is disassembled. Most commonly this takes the form of a collar on a tube, fixed in place by a screw operated by a drum key .
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