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The peg type casement stay has one or two pins or pegs inside the rebate. The stay is a metal bar with holes that fit onto the peg, and allow the sash window to be held open in various positions. The peg nearest the hinge can then be used as a fulcrum. Disadvantages of peg type stays are that the stay handle may protrude dangerously into the room.
In woodworking and construction, a nail is a small object made of metal (or wood, called a tree nail or "trunnel") which is used as a fastener, as a peg to hang something, or sometimes as a decoration. [1] Generally, nails have a sharp point on one end and a flattened head on the other, but headless nails are available.
An aluminium tent peg. A tent peg (or tent stake) is a spike, usually with a hook or hole on the top end, typically made from wood, metal, plastic, or composite material, pushed or driven into the ground for holding a tent to the ground, either directly by attaching to the tent's material, or by connecting to ropes attached to the tent.
Turning the peg or pin tightens or loosens the string. Some tuning pegs and pins are tapered, some threaded. Some tuning pegs are ornamented with shell, metal, or plastic inlays, beads (pips) or rings. Other tuning systems include screw-and-lever tuners, geared tuners, and the konso friction tuning system (using braided leather rings).
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The tightening screw's worm thread engages with the slots on the clamp band. Occasionally a worm drive is designed to run in reverse, resulting in the worm shaft turning much faster than the input. Examples of this may be seen in some hand-cranked centrifuges, blacksmithing forge blower, or the wind governor in a musical box.
In general, a spacer is a solid material used to separate two parts in an assembly. Spacers can vary in size from microns to centimeters. They can be made of metal, plastic, glass, and other materials.
Kyeser also equipped the Archimedes screws for water-raising with a crank handle, an innovation which subsequently replaced the ancient practice of working the pipe by treading. [43] The earliest evidence for the fitting of a well-hoist with cranks is found in a miniature of c. 1425 in the German Hausbuch of the Mendel Foundation. [44]
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