Method of loading and unloading heavy objects from a vessel and an equipment for carrying said method into effect

Abstract From the Canadian patent

A method of loading and unloading a vessel with heavy objects is described whereby an object is vertically lifted for instance from a vehicle drivable on a quay by means of a, crab, gantry or the like which together with said object is moved horizontally along girders from the lifting position to a position above the hold of the vessel. Said girders are arranged on the quay, extending in a cantilever manner out beyond the edge of the quay substantially up to the adjacent edge of the hold. From said cantilever girders the crab together with the object is moved over to and along horizontal extensions of said girders. These extensions which are, entirely supported by the vessel bridge the …