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Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… … Wikipedia
Archimedes' screw — was operated by hand and could raise water efficiently … Wikipedia
Jack shaft — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… … The Collaborative International Dictionary of English
Archimedean screw — or Archimedes screw Machine for raising water, said to have been invented by Archimedes for removing water from the hold of a large ship. One form consists of a circular pipe enclosing a helix and inclined at an angle of about 45°, with its lower … Universalium
Archimedes screw — ▪ technology machine for raising water, allegedly invented by the ancient Greek scientist Archimedes for removing water from the hold of a large ship. One form consists of a circular pipe enclosing a helix and inclined at an angle of about… … Universalium
Gender of connectors and fasteners — A male threaded pipe, left, and female threaded elbow. In electrical and mechanical trades and manufacturing, each half of a pair of mating connectors or fasteners is conventionally assigned the designation male or female. The female connector is … Wikipedia
Barton Organ Company — The Barton Organ Company was an American pipe organ manufacturer during the age of silent movies. The company was founded by Dan Barton, who came from Amherst, Wisconsin. The fifth largest builder of theater instruments in the nationFact|date=May … Wikipedia
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium
Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry … Wikipedia
Meillerwagen — Manufacturer Gollnow Son Assembly Germany Class trailer … Wikipedia
Lathe (metal) — Center lathe with DRO and chuck guard. Size is 460 mm swing x 1000 mm between centers A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to… … Wikipedia