hourglass screw
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hourglass worm — noun see hourglass screw … Useful english dictionary
hindley's screw — ˈhī]n(d)lēz , ˈhi] noun Usage: usually capitalized H Etymology: after Henry Hindley, 18th century English clockmaker : an endless screw or worm shaped like an hourglass to fit a part of the circumference of a worm wheel so as to increase the… … Useful english dictionary
Sand screw — Sand Sand, n. [AS. sand; akin to D. zand, G. sand, OHG. sant, Icel. sandr, Dan. & Sw. sand, Gr. ?.] 1. Fine particles of stone, esp. of siliceous stone, but not reduced to dust; comminuted stone in the form of loose grains, which are not coherent … The Collaborative International Dictionary of English
Violin — Infobox Instrument name=Violin names=Fiddle, de: Violine or Geige, fr: Violon, it: Violino classification=String instrument (bowed) range= related= *Violin family (viola, cello) *Viol family (includes double bass) musicians= *List of violinists… … Wikipedia
Clock — For other uses, see Clock (disambiguation). Timepiece redirects here. For the Kenny Rogers album, see Timepiece (album). Platform clock at King s Cross railway station, London … Wikipedia
Wikipedia:Reference desk/Computing — The Wikipedia Reference Desk covering the topic of computing. Computing #eee #f5f5f5 #eee #aaa #aaa #aaa #00f #36b #000 #00f computing Wikipedia:Reference de … Wikipedia
Atomic clock — Nuclear clock redirects here. For the clock as a measure for risk of catastrophic destruction, see Doomsday Clock. For a clock updated by radio signals (commonly but inaccurately called an atomic clock ), see Radio clock. For the album by Zion I … Wikipedia
Marine chronometer — Breguet twin barrel box chronometer. Classification Clock Industry Transportation … Wikipedia
Worm drive — A worm drive is a gear arrangement in which a worm (which is a gear in the form of a screw) meshes with a worm gear (which is similar in appearance to a spur gear, and is also called a worm wheel). The terminology is often confused by imprecise… … Wikipedia
Clarinet — This article is about the musical instrument. For ClariNet, see ClariNet. Clarinet B♭ Clarinet (Boehm system) Woodwind instrument Classification Wind Woodwind … Wikipedia
