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Machine :: Machine (n.) In general, any combination of bodies so connected that their relative motions are constrained, and by means of which force and motion may be transmitted and modified, as a screw and its nut, or a lever arranged to turn about a fulcrum or a pulley about its pivot, etc.; especially, a construction, more or less complex, consisting of a combination of moving parts, or simple mechanical elements, as wheels, levers, cams, etc., with their supports and connecting framework, calculated to

Heterodromous :: Heterodromous (a.) Moving in opposite directions; -- said of a lever, pulley, etc., in which the resistance and the actuating force are on opposite sides of the fulcrum or axis..

Pulleys :: Pulleys (pl. ) of Pulle.

Crown :: Crown (n.) To cause to round upward; to make anything higher at the middle than at the edges, as the face of a machine pulley..

Rigger :: Rigger (n.) A cylindrical pulley or drum in machinery.

Telodynamic :: Telodynamic (a.) Relating to a system for transmitting power to a distance by means of swiftly moving ropes or cables driving grooved pulleys of large diameter.

Drum :: Drum (n.) A cylinder on a revolving shaft, generally for the purpose of driving several pulleys, by means of belts or straps passing around its periphery; also, the barrel of a hoisting machine, on which the rope or chain is wound..

Face :: Face (n.) The width of a pulley, or the length of a cog from end to end; as, a pulley or cog wheel of ten inches face..

Chain Wheel :: Chain wheel () A chain pulley, or sprocket wheel..

Polyspast :: Polyspast (n.) A machine consisting of many pulleys; specifically, an apparatus formerly used for reducing luxations..

Polyve :: Polyve (n.) A pulley.

Shifter :: Shifter (n.) An arrangement for shifting a belt sidewise from one pulley to another.

Trochlea :: Trochlea (n.) A pulley.

Infratrochlear :: Infratrochlear (a.) Below a trochlea, or pulley; -- applied esp. to one of the subdivisions of the trigeminal nerve..

Pulley :: Pulley (v. t.) 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..

Cone Pulley :: Cone pulley () A pulley for driving machines, etc., having two or more parts or steps of different diameters; a pulley having a conical shape..

Tetraspaston :: Tetraspaston (n.) A machine in which four pulleys act together.

Trochlea :: Trochlea (n.) A pulley, or a structure resembling a pulley; as, the trochlea, or pulleylike end, of the humerus, which articulates with the ulna; or the trochlea, or fibrous ring, in the upper part of the orbit, through which the superior oblique, or trochlear, muscle of the eye passes..

Shiver :: Shiver (n.) A sheave or small wheel in a pulley.

Key :: Key (n.) A bar, pin or wedge, to secure a crank, pulley, coupling, etc., upon a shaft, and prevent relative turning; sometimes holding by friction alone, but more frequently by its resistance to shearing, being usually embedded partly in the shaft and partly in the crank, pulley, etc..

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