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hoisting pulley-block

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См. также в других словарях:

  • block and tackle — n. an arrangement of one or more pulley blocks, with rope or cables, providing significant mechanical advantage for pulling or hoisting large, heavy objects …   English World dictionary

  • block and tackle — the ropes or chains and blocks used in a hoisting tackle. [1830 40] * * * Combination of pulleys with a rope or cable, commonly used to augment pulling force. Two or more of the pulleys are attached to a fixed block, and the remaining pulleys are …   Universalium

  • block and tackle — noun Date: 1838 pulley blocks with associated rope or cable for hoisting or hauling …   New Collegiate Dictionary

  • rubbish pulley — Gin Gin, n. [A contraction of engine.] [1913 Webster] 1. Contrivance; artifice; a trap; a snare. Chaucer. Spenser. [1913 Webster] 2. (a) A machine for raising or moving heavy weights, consisting of a tripod formed of poles united at the top, with …   The Collaborative International Dictionary of English

  • Gin block — Gin Gin, n. [A contraction of engine.] [1913 Webster] 1. Contrivance; artifice; a trap; a snare. Chaucer. Spenser. [1913 Webster] 2. (a) A machine for raising or moving heavy weights, consisting of a tripod formed of poles united at the top, with …   The Collaborative International Dictionary of English

  • Fly block — Fly Fly, n.; pl. {Flies} (fl[imac]z). [OE. flie, flege, AS. fl[=y]ge, fle[ o]ge, fr. fle[ o]gan to fly; akin to D. vlieg, OHG. flioga, G. fliege, Icel. & Sw. fluga, Dan. flue. [root] 84. See {Fly}, v. i.] 1. (Zo[ o]l.) (a) Any winged insect; esp …   The Collaborative International Dictionary of English

  • Crane (machine) — A modern crawler type derrick crane with outriggers. The latticed boom is fitted with a jib. A crane is a type of machine, generally equipped with a hoist, wire ropes or chains, and sheaves, that can be used both to lift and lower material …   Wikipedia

  • blockand tackle — block and tackle Half the pull (p) is required to lift the weight (w) with a two single block and tackle unit. Precision Graphics n. An apparatus of pulley blocks and ropes or cables used for hauling and hoisting heavy objects. * * * …   Universalium

  • Fly system — Fly loft of the Theater Bielefeld in Germany A fly system, flying system or theatrical rigging system, is a system of lines (e.g. ropes), blocks (pulleys), counterweights and related devices within a theatre that enable a stage crew to quickly,… …   Wikipedia

  • stage design — Aesthetic composition of a dramatic production as created by lighting, scenery, costumes, and sound. While elements such as painted screens and wheeled platforms were used in the Greek theatre of the 4th century BC, most innovations in stage… …   Universalium

  • Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R …   Wikipedia

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