pulley

• 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
• 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
• To raise or lift by means of a pulley

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