Definition of Pulley. Meaning of Pulley. Synonyms of Pulley

Here you will find one or more explanations in English for the word Pulley. Also in the bottom left of the page several parts of wikipedia pages related to the word Pulley and, of course, Pulley synonyms and on the right images related to the word Pulley.

Definition of Pulley

Pulley
Pulley Pul"ley, b. t. To raise or lift by means of a pulley. [R.] --Howell.
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 change of sense, cf. F. poutre beam, originally, a filly, and E. easel.] (Mach.) A wheel with a broad rim, or grooved rim, for transmitting power from, or imparting power to, the different parts of machinery, or for changing the direction of motion, by means of a belt, cord, rope, or chain. Note: The pulley, as one of the mechanical powers, consists, in its simplest form, of a grooved wheel, called a sheave, turning within a movable frame or block, by means of a cord or rope attached at one end to a fixed point. The force, acting on the free end of the rope, is thus doubled, but can move the load through only half the space traversed by itself. The rope may also pass over a sheave in another block that is fixed. The end of the rope may be fastened to the movable block, instead of a fixed point, with an additional gain of power, and using either one or two sheaves in the fixed block. Other sheaves may be added, and the power multiplied accordingly. Such an apparatus is called by workmen a block and tackle, or a fall and tackle. See Block. A single fixed pulley gives no increase of power, but serves simply for changing the direction of motion. Band pulley, or Belt pulley, a pulley with a broad face for transmitting power between revolving shafts by means of a belt, or for guiding a belt. Cone pulley. See Cone pulley. Conical pulley, one of a pair of belt pulleys, each in the shape of a truncated cone, for varying velocities. Fast pulley, a pulley firmly attached upon a shaft. Loose pulley, a pulley loose on a shaft, to interrupt the transmission of motion in machinery. See Fast and loose pulleys, under Fast. Parting pulley, a belt pulley made in semicircular halves, which can be bolted together, to facilitate application to, or removal from, a shaft. Pulley block. Same as Block, n. 6. Pulley stile (Arch.), the upright of the window frame into which a pulley is fixed and along which the sash slides. Split pulley, a parting pulley.

Meaning of Pulley from wikipedia

- A pulley is a wheel on an axle or shaft enabling a taut cable or belt p****ing over the wheel to move and change direction, or transfer power between itself...
- A pulley is a device used to transfer mechanical energy. Pulley may also refer to: Pulley (band) Pulley, Shropshire, village in England Sheila Maid, an...
- pulley design program Helix delta-d Conveyor Pulley to AS1403 Software Pulley Maven, software for designing and analyzing conveyor pulleys Pulley manufacturers...
- Pulley is an American, California-based punk rock band, formed in 1994. The band is known for straightforward, hard-edged melodic punk rock. The band was...
- Pulley Ridge is a mesophotic coral reef system off the s****s of the continental United States. The reef rests on sunken barrier islands and lies 100 miles...
- pulleys and may have a twist between the pulleys, and the shafts need not be parallel. In a two pulley system, the belt can either drive the pulleys normally...
- system of two or more pulleys with a rope or cable threaded between them, used to provide tension and lift heavy loads. The pulleys are ****embled to form...
- or main (drive) pulley smaller or making the accessory (driven) pulley larger than the original diameter pulleys. Underdrive pulleys increase engine output...
- as A pulleys, are the annular part of the fibrous sheathes of the fingers. Four or five such annular pulleys, together with three cruciate pulleys, form...
- Cleve Andrew Pulley (born May 5, 1951), better known as Andrew Pulley, is an American former politician who ran as Socialist Workers Party (SWP) nominee...