Abstract: A crane comprising a ground jib, a sliding jib telescopically engaged with the ground jib and movable in a telescoping direction, and a head jib pivotally mounted to the sliding jib. A catch hook is pivotally mounted to the head jib on a pivot axis which extends in the telescoping direction of the sliding jib and a catch member is connected to the ground jib in a position to engage with the catch hook when the sliding jib is protracted into the ground jib and when the head jib is pivoted toward the ground jib. The catch member extends in the telescoping direction so that the catch hook is disengaged from the catch member when the sliding jib is extended with respect to the ground jib. A method is also disclosed for stowing the head jib of the crane.

Abstract: An unloading device for equipment such as ships, bunkers, storage yards or the like comprises an elevator which has a substantially vertical supporting structure with a lower pickup end and an upper delivery end and a conveyor mounted on the structure with an elevator section for conveying material substantially vertical along the support structure. The lower end of the support structure engages into a rotatable bucket wheel which is mounted on a supporting structure. The bucket wheel is mounted in an inclined position relative to the supporting structure preferably at an angle of 45.degree. to the vertical axis of the supporting structure.

Abstract: A cooling container vessel, comprises a vessel hull with spaced apart bulkheads which define a storage space therebetween and which includes substantially vertically arranged guide frames disposed in the space at spaced locations from the bulkheads alongside a vertically elongated manifold for the supply of cooling air. A plurality of horizontally extending double-walled cargo supporting structures are engaged with the frames and are supported thereby in a horizontal position. The double-walled cargo supporting structures are provided with an interior cavity which is supplied with cooling air by a connection carried thereby which may be engaged with a connection to the manifold and include at least one wall which has openings for the flow of cooling air into the cavity of the double-walled supporting structures and outwardly through the openings in the wall thereof.

Abstract: The container ship comprises a hull having outer starboard and port sides with a bottom extending between the sides and with longitudinal bulkheads spaced inwardly from each side and extending substantially coextensive in height above the bottom to the side walls. A bracing deck interconnects the side walls and the longitudinal bulkheads at the level of the tops of the side walls and the bulkheads. A container bottom loading space is defined above the bottom and between the longitudinal bulkheads and this space continues above the bracing deck to form a top container loading space. For this purpose a plurality of top longitudinal walls extend upwardly above the bracing deck and are supported thereon. The plurality of transverse support frames extend above and are supported on the bracing deck and connected to the longitudinal walls at spaced longitudinal intervals.