pulleyn.[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.()()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.()v. t. To raise or lift by means of a pulley.(Howell.)