Abstract: A trolley installer for use with a crane bridge is configured for supporting a trolley thereon. The trolley installer includes a lift system adapted for mounting to the crane bridge. The lift system includes a lift mechanism and a strand coupled to the lift mechanism. The trolley installer also includes a platform member including a table for supporting a trolley and an attachment mechanism for releasably coupling with the strand of the lift system. The lift mechanism is operable to lift and lower the platform member relative to the crane bridge.

Abstract: A device, system, and method for testing and measuring the grip strength of tongs for a crane system is provided. The device may include a frame body carrying a testing assembly configured to measure the tong grip strength. The system may include the grip strength tester used in conjunction with a crane including an operator tower and a pulley assembly operatively connected to the tongs. The method of use associated with the tong grip strength tester may include the steps of expanding a distance between teeth on the tongs and positioning the teeth adjacent sides of the testing assembly, then closing the tongs thereby clamping teeth to the sides of the testing assembly. Then, the testing assembly measures the compressive force associated with the tongs and registers the compressive force in a computer system to determine whether the grip strength is sufficient to lift a weighted slab of material.

Abstract: An arrangement for damping oscillation of a loading member in a crane including a trolley, a hoisting mechanism located in the trolley, a hoisting rope suspended from the hoisting mechanism, a loading member fastened to the hoisting rope, the arrangement for damping oscillation of a loading member including a vertical guide projection arranged in an upper part of the loading member, a guide tube fastened to the trolley for receiving the guide projection, damping members arranged in the guide tube and including elastic guide roll structures engaging around the guide projection, each guide roll structure including a roll frame and a guide roll installed therein. Each roll frame is installed on an outer surface of the guide tube, a wall of the guide tube is at each guide roll provided with an opening from which the guide roll penetrates into the guide tube, and elasticity is arranged between the roll frame and the guide tube.

Abstract: A bridge crane or gantry crane is provided for transferring standard cargo holders, especially ISO containers and swap bodies, between roads and railways. The crane includes a crane trolley that can be moved along a crane carrier in the direction of travel of the crane trolley, and on which a rigid mast is guided that extends in a raising and lowering direction. The mast can be moved in the raising and lowering direction using at least one lifting gear and cables, the lifting gear being disposed on the crane trolley. A load accepting means for standard cargo holders is rigidly fastened to the lower end of the mast. At least two cables are provided which are in contact with opposite ends of a double arm that is mounted on the load accepting means about a substantially horizontal swivel pin.

Abstract: Hoist systems are provided. In one embodiment, a hoist system includes a lower platform, an upper platform, a plurality of flexible members, and a plurality of hoists. The upper platform has a plurality of rotatable support arms. The flexible members connect the rotatable support arms to the lower platform and can be extended and retracted using the plurality of hoists. If desired, the upper platform includes a plurality adjustable length support arms, and actuators may be used to extend and retract the support arms.

Abstract: Embodiments of the present invention include quayside cranes and yard cranes related by a low elevated transfer system and a ground transportation carrier system. The low elevated transfer system includes low elevated transfer subsystems having low elevated rails, the low elevates rails include low elevated crane rails and low elevated flat carrier rails, low elevated cranes are disposed on the low elevated crane rails and low elevated flat carriers are disposed on the low elevated flat carrier rail. The ground transportation carrier system includes ground transportation carrier rails and transportation carriers moving along the ground transportation carrier rails. Embodiments of the present invention transport the containers by rails and use municipal electric as the power supply. A three-dimensional low elevated transfer system and a ground transportation carrier system are provided to implement three-dimensional transportation of containers.

Abstract: A bridge crane or gantry crane is provided for transferring standard cargo holders, especially ISO containers and swap bodies, between roads and railways. The crane includes a crane trolley that can be moved along a crane carrier in the direction of travel of the crane trolley, and on which a rigid mast is guided that extends in a raising and lowering direction. The mast can be moved in the raising and lowering direction using at least one lifting gear and cables, the lifting gear being disposed on the crane trolley. A load accepting means for standard cargo holders is rigidly fastened to the lower end of the mast. At least two cables are provided which are in contact with opposite ends of a double arm that is mounted on the load accepting means about a substantially horizontal swivel pin.

Abstract: An overhead crane adapted to be supported by at least one main support beam includes a bridge adapted to travel in a substantially horizontal direction along the at least one main support beam, a trolley adapted to travel in a substantially horizontal direction along the bridge, a jib rotatably coupled to a bottom surface of the trolley, and a hoist adapted to travel in a substantially horizontal direction along the jib.

Abstract: In one example, a radiation scanning system and method rotates a cargo conveyance after removal from a ship for proper orientation with respect to a scanning source and detector, for scanning. A movable carriage may be provided on a crane system, to rotate the cargo conveyance. A rotating flywheel on the carriage rotates in a direction opposite the direction of rotation of the cargo conveyance, to counterbalance angular momentum generated by the rotating conveyance, to avoid or minimize twisting of the carriage. Feedback is provided to control the rotation of the flywheel. Once the cargo conveyance is in the predetermined position, the conveyance is moved between the radiation source and detector for scanning by a vertically extending radiation beam.

Abstract: A container crane includes a container including first and second side walls spaced apart and generally parallel, a bridge adapted to travel in a substantially longitudinal direction along the first and second side walls, a trolley adapted to travel in a substantially longitudinal direction along the bridge, a jib coupled to a bottom surface of the trolley, and a hoist mounted to the jib.

Abstract: A dual trolley, single boom crane system for loading and unloading containers from ships moored at a dock that effectively doubles the rate of container loading and unloading of conventional prior art single boom crane systems. The present invention also concerns a novel method for retrofitting conventional prior art single boom crane systems to convert them to dual trolley systems, while at the same time retaining the basic geometry of the prior art system so that the same number of multiple cranes may be positioned over the dock side.

Abstract: The invention relates to a transfer plant, especially for loading and unloading ISO containers from container ships at seaports, comprising a vertical support which is propped up on the land side and on which a horizontal extension arm is braced. Said horizontal extension arm, along which a horizontal conveying device can be displaced, protrudes across the ship that is to be unloaded on the sea side. The horizontal conveying device cooperates with hoisting and lowering devices which pick up and put down the containers. The aim of the invention is to create a redesigned transfer plant and a method for loading and unloading containers, preferably ISO containers, from container ships in seaports, which allow the transfer rate to be significantly increased and consequently the lay times of the container ships at the pier to be substantially reduced. Said aim is achieved by disposing at least two horizontal conveying devices (9, 10) on the horizontal extension arm (1.4, 1.5, 1.

Abstract: A through-hole 14 is provided in a body base 12 of an overhead travelling carriage to guide a roller on an elevating and lowering drive section 6. In addition, a pair of holes are provided at the both running-direction ends of the elevating and lowering drive section 6 to guide rollers on position control sections 16, 16. The pair of position control sections 16, 16 independently move these rollers perpendicularly to a running direction. A simple mechanism can be used to move an elevating and lowering section of the overhead travelling carriage perpendicularly to the running direction and to rotationally move it in a horizontal direction so as to reach a station.

Abstract: A cargo loading crane (10) comprises a crane bridge (16) having two hoist units (26, 28) with hoisting gear (26b, 28b) and assigned cargo pick-up devices (26c, 28c), a transfer unit (32) with at least one cargo pick-up region (32o, 32u) and a conveyor unit (64). Division of the horizontal transport path between the transfer unit (32) on the one hand and the conveyor unit (64) on the other shortens the duration of the operating cycle for loading and unloading a cargo carrier (18).

Abstract: Disclosed is a polar crane supported by a rail and having a bridge and a bridge-supporting end truck at each end of the bridge. Each end truck has, for either direction of revolving bridge motion, a leading wheel contacting the rail. In the improvement, the leading wheel of each end truck has a single flange and the flange is inward of the rail. Skewed crane "lock-up" is thereby substantially prevented. A related method for modifying a polar crane includes raising the first end truck away from the rail, removing a two-flange wheel (the leading wheel) from the first end truck and installing a one-flange wheel in place thereof.

Abstract: An apparatus for suspending and manoevring a load, more particularly for providing a theatrical or stage effect in which an actor or article "flies", includes hoist means and means associated with the hoist means for rotating a load suspended therefrom, such that rotation of the load is unrestricted.

Abstract: A stacker crane comprising a trolley moveable above the ground, the trolley including a frame, a turntable supported by the frame for rotation relative to the frame about a generally vertical rotation axis, and a rotate drive which rotates the turntable relative to the frame, a mast assembly depending from and fixedly mounted to the turntable so that the mast assembly rotates with the turntable relative to the trolley frame, a carriage supported by the mast assembly for vertical movement relative thereto and for common rotation therewith relative to the trolley frame, a load engaging mechanism mounted on the carriage, and a hoist assembly including a hoist drum which has an axis of rotation fixed relative to the trolley frame and which is rotatable in one direction and in an opposite direction, and a hoist rope wound around the drum and connected to the carriage such that rotation of the drum in the one direction raises the carriage and rotation of the drum in the opposite direction lowers the carriage.

Abstract: Containers are transported by movement of upper and lower trolleys along vertically spaced travel paths established by laterally spaced rails formed in a boom supported in a horizontal position by suspension cables attached to a frame assembly through which the boom extends horizontally between container receiving and delivery locations.