pulley

• Máquina simple consistente en una rueda acanalada por la que pasa una cuerda o cable, que sirve para cambiar la dirección de una fuerza o para levantar pesos con ventaja mecánica.

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.

1. Simple machineB2formaltechnical

   A wheel with a grooved rim in which a rope or cable runs, used to change the direction or point of application of a pulling force.

   Polea

   • The workers used a pulley to lift heavy equipment to the top floor.
   • A flagpole uses a simple pulley system to raise the flag.
   • The ship's rigging included several pulleys to manage the sails.

   Sinónimosblock