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 when lifting or moving loads. Usage The term "pulley-block" refers specifically to the assembled unit containing the...