pul|ley

pul|ley
pul|ley «PUL ee», noun, plural -leys.
1. a wheel with a grooved rim in which a rope can run and so change the direction of the pull. It is a simple machine and is used to ft weights. »

Our flag is raised to the top of a pole by a rope and two pulleys.

2. a set of such wheels, used to increase the power applied.
3. a wheel used to transfer power by driving a belt or being driven by a belt that moves some other part of the machine.
╂[< Old French poulie, perhaps < Medieval Latin poleia, ultimately < Greek polídion (diminutive) < pólos axle, pole < poleîn to revolve]

Useful english dictionary. 2012.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • pul·ley — /ˈpʊli/ noun, pl leys [count] : a wheel or set of wheels that is used with a rope, chain, etc., to lift or lower heavy objects …   Useful english dictionary

  • pul — aca·pul·co; am·pul; am·pul·la; am·pul·la·ceous; am·pul·lar; am·pul·lar·ia; am·pul·late; am·pul·li·form; am·pul·lu·la; at·ta·pul·gite; cal·pul·li; car·dio·pul·mo·nary; com·pul·sa·tive; com·pul·sa·to·ry; com·pul·sion; com·pul·si·tor;… …   English syllables

  • ley — ake·ley; badde·ley·ite; bai·ley; bar·ley·break; baw·ley; bay·ley·ite; berke·ley; berke·ley·ism; berke·ley·ite; ber·ley; bing·ley; brad·ley·ite; ca·ley; chance med·ley; char·ley; col·ley; cow·ley; craw·ley; doy·ley; dud·ley; dud·ley·ite; far·ley;… …   English syllables

  • pulley — pul·ley …   English syllables

  • pulley — pul|ley [ˈpuli] n [Date: 1300 1400; : Old French; Origin: poulie, probably from Greek polos; POLE1] a piece of equipment consisting of a wheel over which a rope or chain is pulled to lift heavy things …   Dictionary of contemporary English

  • pulley — pul|ley [ puli ] noun count a piece of equipment used for lifting something very heavy. It consists of one or more wheels, around which you pull a rope or chain that is fastened to the thing you want to lift …   Usage of the words and phrases in modern English

  • pulley — pul•ley [[t]ˈpʊl i[/t]] n. pl. leys 1) mac a wheel for supporting, guiding, or transmitting force to or from a moving rope or cable that rides in a groove in its edge 2) mac a combination of such wheels in a block, or of such wheels or blocks in… …   From formal English to slang

  • Band pulley — Pulley Pul ley, n.; pl. {Pulleys}. [F. poulie, perhaps of Teutonic origin (cf. {Poll}, v. t.); but cf. OE. poleine, polive, pulley, LL. polanus, and F. poulain, properly, a colt, fr. L. pullus young animal, foal (cf. {Pullet}, {Foal}). For the… …   The Collaborative International Dictionary of English

  • Belt pulley — Pulley Pul ley, n.; pl. {Pulleys}. [F. poulie, perhaps of Teutonic origin (cf. {Poll}, v. t.); but cf. OE. poleine, polive, pulley, LL. polanus, and F. poulain, properly, a colt, fr. L. pullus young animal, foal (cf. {Pullet}, {Foal}). For the… …   The Collaborative International Dictionary of English

  • block and tackle — Pulley Pul ley, n.; pl. {Pulleys}. [F. poulie, perhaps of Teutonic origin (cf. {Poll}, v. t.); but cf. OE. poleine, polive, pulley, LL. polanus, and F. poulain, properly, a colt, fr. L. pullus young animal, foal (cf. {Pullet}, {Foal}). For the… …   The Collaborative International Dictionary of English

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”