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  2. Differential pulley - Wikipedia

    en.wikipedia.org/wiki/Differential_pulley

    It is operated by pulling upon the slack section of a continuous chain that wraps around two pulleys on a common shaft. (The two pulleys are joined together such that they rotate as a unit on the single shaft that they share.) The relative sizing of the two connected pulleys determines the maximum weight that can be lifted by hand.

  3. Hoist (device) - Wikipedia

    en.wikipedia.org/wiki/Hoist_(device)

    Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.

  4. Come-along - Wikipedia

    en.wikipedia.org/wiki/Come-along

    A come-along. A come-along, also known as a power puller, is a hand-operated winch with a ratchet used to pull objects. The drum is wrapped with wire rope.A similar tool that uses a nylon strap is used to straighten trees, as it straightens gradually over time, therefore not splitting the trunk.

  5. Rigging (material handling) - Wikipedia

    en.wikipedia.org/wiki/Rigging_(material_handling)

    Chain hoist – Device used for lifting or lowering a load; Chain stopper; Come-along – Lever operated, portable ratchet winch; Crane (machine) – Type of machine; Crawler (rigging) Hook – Tool used to grab onto, connect, or attach to something; Hoist (device) – Device used for lifting or lowering a load; Jack (device) – Mechanical ...

  6. Patented track crane - Wikipedia

    en.wikipedia.org/wiki/Patented_track_crane

    ASME B30.16 - Overhead Hoists (Underhung) ASME B30.20 - Below-the Hook Lifting Devices; ASME HST-1 - Performance Standard for Electric Chain Hoist; ASME HST-2 - Performance Standard for Hand Chain Manually Operated Chain Hoists; ASME HST-4 - Performance Standard for Overhead Electric Wire Hoists; ASME HST-5 - Performance Standard for Air Chain ...

  7. Engine crane - Wikipedia

    en.wikipedia.org/wiki/Engine_crane

    The electric chain hoist, also known as the "electric hoist", is the least used type of engine crane. The operation is similar to the chain hoist in the way that chains are used to lift the engine. The electric chain hoist uses an electric motor operated by remote control to lift the engine, unlike the chain hoist where the operator has to ...