Monkey Hoist Machine With Trolley

hoist, mechanical device used primarily for raising and lowering heavy loads but occasionally for moving objects horizontally. It usually consists of a block and tackle—a combination of one or more fixed pulleys, a moving pulley with a hook or other similar means of attaching loads, and a rope (or cable) between them.A hoist is a device used to lift or move material. The lifting force is provided by a drum (or wheel) on which wraps a rope (wire or fibre) or a chain. There are different types of hoists – Electro-hydraulic, manual or lever operated, base mounted, or pendant cranes.