Abstract: A trampoline includes a trampoline frame with trampoline legs supporting the trampoline frame above a ground. Trampoline springs connect to the trampoline frame. A trampoline bed is connected to the trampoline springs. The trampoline bed is extended across the trampoline frame. A trampoline enclosure has at least one enclosure pole supporting an enclosure net. A pulley system is mounted to the enclosure pole and the pulley system includes a pulley mounted to a pulley line. The pulley line connects to an enclosure top support. The enclosure net is connected to the enclosure top support. Optionally, the trampoline also has a free end of the pulley line. The free end of the pulley line extends away from the pulley to be accessible to a user.

Abstract: Described is an offshore lifting crane, as for a vessel or platform, that includes a support structure, a crane boom connected to the support structure, a winch drum rotatable around its longitudinal axis, a winch drum drive means, and an elongated hoisting member. The hoisting member includes a first end connected to the winch drum and a second end connectable to a load. The hoisting member extends over at least a part of the crane boom, and the winch drum is arranged such that its longitudinal axis is substantially vertical.

Abstract: This invention relates generally to a method for making a deck for use in construction.

Abstract: This invention relates generally to a deck with a slidable platform such as for use in construction.

Abstract: A method and an apparatus for handling and/or servicing components of a wind turbine, such as installing and/or dismantling components into or from a wind turbine nacelle or such as servicing exterior components such as blades, hub, tower and nacelle of the wind turbine are disclosed. The gripping apparatus comprising at least one arm for gripping around the wind turbine tower, the at least one arm capable of forming a gap between gripping elements of the gripping apparatus. The at least one arm extends around the entire outer circumference, seen perpendicular to a horizontal plane, of the wind turbine tower.

Abstract: A hoisting crane comprising a substantially hollow vertical column, a jib, a jib winch and a jib hoisting cable is provided. The crane further a hoisting winch and an associated hoisting cable, the hoisting winch being disposed in the column, so that the hoisting cable extends from the winch through the column. The jib winch and the hoisting winch are arranged on a rotatable winch support, such that the winch support is mounted movable with respect to the vertical column. The hoisting crane further comprises a deep water winch positioned below the rotatable winch support and an associated deep water cable for raising and lowering a load extending through the rotation axis of the rotatable winch support, so that the deep water cable extends from the deep water winch through the hollow vertical column. The present invention further relates to a vessel provided with such a crane.

Abstract: A method of deploying an object (14) onto the seabed in very deep water from a vessel having a heave compensated deck crane (12), comprises lowering the object a distance into the sea while being suspended in the crane wire (16). In an initial step, a first fibre rope section (4a) of a first length is connected to the object (14) via a first connector (3a) on the object before the lowering is started and is freely run out supporting from a storage reel (13) during the descent. Subsequently, the first rope section is the object via a second connector (3b) located at the upper end of the first rope section (4a), the second connector being supported by a support mechanism (1) on the vessel deck (8), followed by off-loading the crane wire (16) and disconnecting it from the object and heaving it up said first length for connection to the second connector (3b) at the vessel deck and taking over the load of the object.

Abstract: Hoisting crane (20), comprising a substantially hollow jib (24,-124; 324) having a longitudinal axis, and comprising one or more hoisting cable guides (47, 48, 49; 147; 347). The jib comprises at least one jib leg (29; 129; 329) extending between a jib connection member (26) and a jib hoisting end (27; 127; 327), wherein the at least one jib leg comprises one or more hybrid portions (160; 360) comprising two elongated hollow casings (170; 370) substantially parallel to each other and substantially parallel to the longitudinal axis of the jib, and wherein between the two casings a truss (171 371) is provided to rigidly connect the two castings.

Abstract: The present invention relates to a hoisting crane comprising a substantially hollow vertical column, a jib and topping means for pivoting the jib up and down, comprising a jib winch and a jib hoisting cable. The crane further comprises hoisting means for hoisting a load, comprising a hoisting winch and an associated hoisting cable, the hoisting winch being disposed in the column, so that the hoisting cable extends from the winch through the hollow vertical column. The jib winch and the hoisting winch are arranged on a rotatable winch support, which is rotatable about a rotation axis substantially parallel with the vertical column, such that the winch support is mounted movable with respect to the vertical column.

Abstract: A heave compensation system provides a direct acting heave compensator that reduces stress and fatigue on a line, the system includes a single sheave system that compensates for heave as it carries a load line and moves along a curve profile of the heave compensator tangent to the point the load line comes off of a line handling system. The length of the line extending from the line handling system to the sheave remains substantially the same length during heave compensation operations, and the point where the line takes off from the line handling system is substantially the only point of changing stress on the line.

Abstract: The invention relates to a tie-back system for a crane comprising a rotatable base with a generally vertical support frame and a lifting arm which is with a lower end hingedly connected to the base in a hinge point, an upper part of the frame carrying a displacement member movable relative to the frame, the displacement member carrying a first cable guide means, a first cable extending from a first connection point on the arm along the first cable guide means to a first pulling device. The displacement member comprising a tie connection point for connection to a tie member, a second cable guide means attached to an upper part of the frame and a second cable extending from a second connection point on the arm along the second cable guide means to a second pulling device.

Abstract: A hoisting crane with an even reeving system having a substantially hollow vertical column, which has a foot, a top and a body disposed between the foot and the top. An annular bearing structure disposed around the substantially hollow vertical column. A jib connection member disposed on the annular bearing structure and rotatable about the substantially hollow vertical column. A jib connected to the jib connection member.

Abstract: A system or apparatus and method for retrieving cable from water during marine operations is provided that reduces damage to the cable from pulling forces during the retrieval. A pulling device distributes the forces and stresses all along the cable components. In one embodiment, the pulling drive comprises a pulling drum powered by a clutching system or by a hydraulic torque conversion system set to slip or stall at a selectable force value. The apparatus may use a see-saw action to maintain the forces below damaging levels. The system may be adapted for deploying cable in marine operations as well.

Abstract: The invention is a method for lifting and transporting a heavy load by using a heavy lift vessel with at least two heavy lift cranes adapted to operate simultaneously; mounting fly-jibs on the heavy lift crane to increase reach and height of the heavy lift crane; picking up a load from a first location using the fly-jib modules simultaneously; shifting the load from the first location to over a second location on the heavy lift vessel; placing the load on the second location; moving the heavy lift vessel to a second position; using a mooring system to maintain the heavy lift vessel at the second position; picking up the load from the second location using the fly-jib modules simultaneously; shifting the load from a second location to over a third location; and placing the load on the third location.

Abstract: A support structure for supporting a lift crane, and in particular to a lift crane jack-up structures, including rigs, platforms, barges, boats or the like, wherein the lift crane is positioned about a leg of the jack-up structure atop the jack-house. The preferred embodiment of the present invention contemplates a system for elevating a lift crane above the deck and about the leg of the jack-up structure, without relying upon the leg for structural support. A structurally reinforced jack-house having jacking units interfacing with the leg is provided at the deck of the vessel the jack-house configured to engage and support a crane tube column upon the roof of the jack house, which crane tube column in turn has situated thereupon the lift crane.

Abstract: A movable pedestal or kingpost type luffing crane that includes an upperworks, having a crane boom, rotatably mounted on a crane support. The crane support extends below the upperworks. The movable crane is constructed to be selectively maintained in or removed from a receiving socket. Movement prevention means prevents the radial and vertical movement of the crane support in the receiving socket. Anti-rotation means prevents the rotation of the crane support in the receiving socket. A centering means is also provided which facilitates the centering of the crane support means within the receiving socket. Providing a plurality of receiving sockets located at predetermined locations provides a system wherein the movable crane may be moved from socket to socket and from location to location.

Abstract: A drilling tender (2) has a pair of laterally spaced buoyant hulls (4) with ballast chambers to permit the hulls to be moved between a submerged condition and a surface floating condition. Each hull (4) supports a row of columns (8). The columns (8) support a working platform (10) including a main deck (12) and a pipe rack deck (30) above the main deck (12). A bow deck (48) above a forward portion of the pipe rack deck (30) has mounted on a corner portion thereof a main heavy duty crane (50). The support structure for the crane (50) extends downwardly through the decks (12, 30, 48) and down into one of the columns (8). Between the main and pipe rack decks, the support structure is formed by a plurality of bulkheads. These bulkheads have portions extending down into the column (8) to transmit forces created by operation of the crane (50) to the column (8).

Abstract: A working apparatus comprising openings formed as gondola access holes in tank web frame of a ship, a rail passed through the openings and secured to the tank web frame, a trolley adapted to travel along the rail, a hoist mounted on the trolley, and a gondola elevatably suspended from the hoist is provided. The working apparatus can transport workers or necessary articles to a working place to be inspected or repaired for carrying out the inspection and/or repair within tanks of a ship.