pulley

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Related to Fixed pulley: Movable pulley

pul·ley

 (po͝ol′ē)
n. pl. pul·leys
1. A simple machine consisting essentially of a wheel with a grooved rim in which a pulled rope or chain can run to change the direction of the pull and thereby lift a load.
2. A wheel turned by or driving a belt.

[Middle English poley, from Old French polie and from Medieval Latin poliva, both ultimately from Greek polos, axis; see kwel- in Indo-European roots.]

pulley

(ˈpʊlɪ)
n
1. (Mechanical Engineering) a wheel with a grooved rim in which a rope, chain, or belt can run in order to change the direction or point of application of a force applied to the rope, etc
2. (Mechanical Engineering) a number of such wheels pivoted in parallel in a block, used to raise heavy loads
3. (Mechanical Engineering) a wheel with a flat, convex, or grooved rim mounted on a shaft and driven by or driving a belt passing around it
[C14 poley, from Old French polie, from Vulgar Latin polidium (unattested), apparently from Late Greek polidion (unattested) a little pole, from Greek polos axis]

pul•ley

(ˈpʊl i)

n., pl. -leys.
1. 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. a combination of such wheels in a block, or of such wheels or blocks in a tackle, to increase the force applied.
[1275–1325; Middle English poley, puly < Middle French polie « Medieval Greek *polídion little pivot]

pul·ley

(po͝ol′ē)
A simple machine consisting of a wheel over which a pulled rope or chain runs to change the direction of the pull used for lifting a load. Combinations of two or more pulleys working together reduce the force needed to lift a load. See also block and tackle.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pulley - a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the ropepulley - a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
block and tackle - pulley blocks with associated rope or cable
bullock block, bollock - a pulley-block at the head of a topmast
fairlead - a pulley-block used to guide a rope forming part of a ship's rigging to avoid chafing
idle pulley, idle wheel, idler pulley - a pulley on a shaft that presses against a guide belt to guide or tighten it
simple machine, machine - a device for overcoming resistance at one point by applying force at some other point
Translations
بَكَرَه
kladka
trisse
csiga1
talía, blökk; trissa
skridinys
trīsis
kladka
makarapalanga

pulley

[ˈpʊlɪ] Npolea f

pulley

[ˈpʊli] npoulie fpull-in [ˈpʊlɪn] (British) pull-off [ˈpʊlɒf] (US) nparking m

pulley

n (= wheel)Rolle f; (= block)Flaschenzug m; (= hospital apparatus)Streckapparat m

pulley

[ˈpʊlɪ] npuleggia, carrucola

pulley

(ˈpuli) noun
a wheel over which a rope etc can pass in order to lift heavy objects.

pul·ley

n. polea.
References in periodicals archive ?
A static cable is attached to the front of each car passing round a fixed pulley at the summit.
One end of the flexible rope fixe to link block in the circular orbit, the other end round the movable pulley and the fixed pulley to arrive in the wellhead, and it connects the sucker rod and the pump; accordingly change a circular motion of the crank into a reciprocating motion of the rod and pump.
Students should enjoy discovering how much better the moveable pulley works, as opposed to a fixed pulley.