block and tackle

• Système de poulies et de câbles utilisé pour soulever de lourdes charges, souvent dans un contexte mécanique ou maritime. S'emploie aussi au sens figuré pour désigner les outils ou moyens de base nécessaires à l'accomplissement d'une tâche.

A system of pulleys and ropes used for lifting heavy loads, often in mechanical or nautical contexts. Also used figuratively to refer to the basic tools or essentials needed to accomplish a task.

1. Pulley systemC1formal

   A system of pulleys and ropes used to lift heavy loads with less force.

   palan

   • The workers used a block and tackle to lift the steel beam.
   • A block and tackle can multiply the force applied by the user.
   • The sailors rigged a block and tackle to hoist the sail.