Abstract: In a chain sheave/chain-rope system wherein an end of a chain is connected to an end of a rope via a splice member, guide members are provided on the splice member for cooperation with guide members within a hawsehole that precedes the chain sheave. As a result of this cooperation, the splice member and the chain attached thereto are brought into the correct position for engagement prior to their entry onto the chain sheave.

Abstract: Hydraulic system for operation of winches which are associated with powered friction pulleys for hauling a wire, the winch winding the wire onto the drum being provided with valves permitting the friction pulleys to idle freely when it is convenient to use the winch drum proper also for hauling the wire.

Abstract: Hydraulic system for operation of a winch, including a hydraulic motor for operation of the winch, a pump for pumping hydraulic oil for operation of the motor, a manoeuvering valve for control of the speed of the motor and rotational direction, a first choke valve which is connected in series with the pump, and a second choke valve which is connected in parallel with the motor, the system including two or more hydraulic motors connected in parallel, with throughflow both ways, preferably of the multi-stage type, and drive-connected to the same winch shaft.