DEVICE FOR CLEARING SHALLOW BANKS IN SHIPPING LANES Russian patent published in 1998 - IPC

FIELD: hydraulic engineering. SUBSTANCE: this is intended for bottom digging operations at sites of periodic formation of shallow banks so as to maintain existing dimensions of shipping water lanes. Device has crane installed on catamaran which is made up of two bodies interconnected by beams, load hoisting hook assembly, mechanism for raising ground from bottom, and mechanism for evacuation of lifted ground. Mechanism for raising ground from bottom is made in the form of bed arranged on bottom and boxes installed on this bed. Boxes have slots and eye-lugs for connection with load hoisting hook. Mechanism for evacuation of lifted ground is made in the form of scow carrying hydraulic giants for washing out ground from boxes. EFFECT: higher efficiency. 7 dwg