Floating boat lifting apparatus for raising or lowering the boat from or onto the water

摘要

A boat lifting device for lifting a ship, such as a motorboat, a utility boat, a prefabricated rubber boat, a shipping boat, a cruise yacht, or a dinghy yacht, above the surface or for floating the same on the surface and, more particularly, to a boat lifting device operated by a hydraulic cylinder, air, water pressure, a worm gear, or a rotor.