pulley block

Definitions of pulley block
  1. noun
    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
    synonyms: block, pulley, pulley-block
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    types:
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    bollock, bullock block
    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
    snatch block
    a pulley-block that can be opened to receive the bight of a rope
    type of:
    machine, simple machine
    a device for overcoming resistance at one point by applying force at some other point
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