Patent ID: 7152895

Claim:
A spreader system for lifting containers comprising: a spreader frame; at least one telescopic beam telescopically movable in said spreader frame; at least one locking member positioned between said spreader frame and said at least one telescopic beam for stopping the telescopic movement of said at least one telescopic beam in relation to said frame, said locking member including a locking point comprising a drive ramp and a form-locking groove, and a locking part including a locking roller fitting into the form-locking groove and a locking spring locking the locking roller in said form-locking groove the compression force of the locking spring being adjustable, with a magnet; at least one twistlock in said at least one telescopic beam having a locked and unlocked position; a joint multi-rope system for performing the telescopic movement of said at least one telescopic beam and also for actuating said at least one twistlock; at least one actuator operating said joint multi-rope system; and a control system for supervising and controlling the operations of said at least one actuator and said joint multi-rope system.