A hoisting device is a tool used to lift and move heavy objects. The most common hoisting devices are cranes, winches, slings, and petards. Cranes are large machines with a long arm that can be used to lift and move heavy objects. Winches are machines that use a cable or rope to pull or lift heavy objects. Slings are loops of rope or fabric used to lift and move heavy objects. Petards are explosives used to break down walls or other structures.