pulley block

Found in Anh - Anh (Wordnet)

Definition Noun : A pulley block is a simple machine consisting of a wheel (or sheave) with a grooved rim, mounted in a frame or block. A rope, cable, or belt runs in the groove, allowing the device to change the direction of an applied force or to provide a mechanical advantage for lifting or moving loads. Usage A pulley block is used to redirect force, making it easier to lift heavy objects o...