APPLIANCE FOR RAISING SUNKEN OBJECT Russian patent published in 2007 - IPC B63C7/02 B63C7/04 

FIELD: raising sunken objects.

SUBSTANCE: proposed appliance for raising the sunken objects includes the following units located on the base ship: cargo gripping device, pulley block system consisting of two twin pulley blocks with snatch blocks embraced by steel wire ropes combined in movable and fixed holders, unit for stabilization of movable holder in space, four drums kinematically linked with drives and mounted for motion over guides secured on base ship hull. Free ends of wire ropes of each twin pulley blocks are secured on their drums. Each drum is provided with sealed-up inner cavity and is located on water surface inside base ship for shift relative to her. Drum axes are oriented in way of motion of drums; bearing units and drive of each drum are secured on sliders for engagement with said guides and shift relative to them in horizontal and vertical planes. Free ends of wire ropes are secured on drums of each twin pulley block on their inner sides.

EFFECT: enhanced efficiency of raising sunken object from deep depths; simplified construction of raising facility.

2 dwg