Abstract: A vessel (1) with a transfer installation for cargo and persons towards an offshore construction (12) comprises means for stabilizing its position at sea relative to the offshore construction (12), a telescopically extendable beam assembly (2) that comprises telescopable beam elements (2a, 2b), which beam assembly (2) with its one outer end (15) is rotatably connected to the vessel (1) by means of an axle system (7a, 8a, 9a), and a driving device designed to bring the other outer end (16) of the telescopically extendable beam assembly (2) in contact with a landing provision (13) of the offshore construction (12). The telescopically extendable beam assembly (2) is provided with means for moving a transportation carriage (14) back and forth between both outer ends (15, 16) along the telescopically extendable beam assembly (2), wherein the transportation carriage (14) is provided with a support (20) for carrying the cargo and persons.

Abstract: A gangway for transferring personnel and equipment from a first device to a second device which are able to move relative to each other. The gangway includes gangway sections which are telescopically movable relative to each other, a first end section of the gangway being mounted on the first device, a second end section of the gangway being movable and mountable to the second device. The first end section of the gangway, in a region thereof, is mounted in a support frame suspended within a gyro arrangement maintaining the gangway in a substantially horizontal plane. The gyro arrangement is located on a turning plate foundation mounted on the first device and the second end section of the gangway is provided with connector means for interconnection with the second device.

Abstract: A counterweight is provided for tensioning the wire of a catenary in a railway line, comprising a metal shell (1) made up of a frame (1a) and a surrounding body (1b) which is filled with a filler material (2), which integrates at least high-density concrete in combination with a metal material as an additional filler for increasing the density of the counterweight. The frame (1a) is embedded into the filler material (2) and in turn, is linked to the surrounding body (1b) by a welded joint.

Abstract: A synchronous control integrated system for bridge lifting, comprising a monitor mechanism; an oil pressure control mechanism, connected to the monitor mechanism; a plurality of jacks, each connected to the oil pressure mechanism, respectively; and a sensor mechanism, connected to the monitor mechanism. As such, a shift variance generated by girders of a bridge may form a signal by using a sensor mechanism and jacks together transmitted on line to a monitor mechanism as a control parameter, so that the monitor mechanism may have an accurate adjustment and monitoring on an oil pressure control mechanism and the jacks, whereby completing the synchronous control operation for the bridge lifting course. Furthermore, the bridge lifting construction may have its improved accuracy and safety.

Abstract: A bridge for crossing a passage of a navigation channel includes a section in the form of a single span, which may be displaced by vertical translation between a base position spanning the passage, in which the span rests on fixed support sections of the bridge, and a raised position, for opening the passage, and a support structure for the span on displacement of the span, and a drive for lifting the span. The bridge has only one support structure, with the drive, located on one side of the passage to be spanned.

Abstract: A bridge for crossing a passage of a navigation channel includes a section in the form of a single span, which may be displaced by vertical translation between a base position spanning the passage, in which the span rests on fixed support sections of the bridge, and a raised position, for opening the passage, and a support structure for the span on displacement of the span, and a drive for lifting the span. The bridge has only one support structure, with the drive, located on one side of the passage to be spanned.

Abstract: An unbalanced bascule bridge having an unbalanced bridge span including a pair of longitudinal girders with a low torsional stiffness interconnected at a pivoting end by a torsionally rigid cross-girder and interconnected along a longitudinal expanse of the longitudinal girders by a steel frame which forms a closely spaced lattice for supporting a relatively thin, lightweight concrete roadway deck. The bascule bridge span is raised and lowered by an actuator assembly including a plurality of hydraulic cylinders pivotally mounted on support columns and corresponding piston rods which apply a torque to the cross-girder through crank-plates welded to the cross-girder and pivotally interconnected to a base. The cross-girder isolates the longitudinal girders from all support and reaction forces while raising and lowering the bascule bridge span.

Abstract: A gangway designed to extend between a pair of relatively movable bodies (2, 50), such as an off-shore field rescue vessel and a rig or platform has a series of telescopic platforms (36, 37) defining a substantially planar walk-way surface and linked by a lazy-tong form of coupling (17, 18, 19, 20). By this means velocity variations between one region of the walk-way and the next can be kept small despite rapid variations in the overall length of the gangway.

Abstract: A vertically adjustable bridge for connection with ships, particularly ships with their own flaps such as car ferries and the like, comprises a ramp (6) including girders and the like and has an upper surface suitable as bedding for transport. At its land side the bridge is rotatably connected to a bearing arrangement (3, 4) so that the end (9) of the bridge which in use faces the ship can be turned to a desired height within a suitable adjustment area and temporarily locked in this height position by means of supporting legs (10). The bridge comprises one or more bridge units, several bridge units being mountable side by side adjacent one another, and each bridge unit has straight sides parallel to one another.