A method of mooring a floating vessel having a fairlead stopper coupled thereto is provided. The method includes retrieving a line pre-reeved on the fairlead stopper, connecting the line to an upper end of a mooring line, retrieving a second end of the line, connecting the second end to a winch of the AHV, and hauling in the mooring line to apply tension thereto.

A fairlead includes a chain guide support structure and a clump weight engagement member. A clump weight assembly includes a clump weight body, a clump weight coupled to the clump weight body, and a housing spring.

A connecting link assembly for connecting two chain sizes together. The connecting link assembly includes a smaller connecting link assembly sized according to the smaller chain size, a larger connecting link assembly sized according to the larger chain size, and a connecting component.

A self-aligning fairlead latch device is provided for guiding and securing an anchor chain between an offshore structure and an anchor. The fairlead latch device includes a latch housing pivotally mounted to a fairlead housing.

A turret-moored vessel with an improved bearing, turning, and locking system includes a floating hull, a turret supported by the hull and rotatable relative to the hull, and bearing assemblies forming an interface between the hull and turret.

A jacking apparatus comprises a rail having a plurality of pairs of vertical slots longitudinally spaced apart. A sled slides along this rail and has cross members to which are pivotably attached ends of hydraulic cylinders, the other ends of the hydraulic cylinders being pivotably attached to cross heads which also slide along the rail.

A ship lifting apparatus, or drydock, is formed by a pair of parallel, spaced apart piers, which define a slip in which is located a platform onto which a ship can be floated. The platform is raised or lowered by a plurality of chain jacks mounted in aligned rows on each of the piers.

A single jack ram is straddled by two chains resulting in low cost and a balanced load. Ram head latches and cylinder assembly latches are formed as double pins hydraulically operated and which are oriented at right angles to each other to engage consecutive links of the chain when the ram is completely retracted.

A chain jack has a pair of pawls, one attached to a hydraulic cylinder as a base and the other attached to the head of a ram, which is attached to a piston in the ram-actuating hydraulic cylinder.

A module and system for use in connection with the moving of multi-ton objects over a ground surface containing no rails. The modular concept permits moving heavy loads that are dimensionally large and that are not rigid enough to be supported at a few points.

Piston Gripper Jacks are used where size and weight restrictions dictate a more compact design, or for very large loads. The Piston Gripper uses an array of separate, short-stroke, hydraulic pistons to clamp the jacking (skid) beam flanges. These grippers develop maximum clamping force with minimum size. Piston Gripper Jacks are smooth-acting, rugged and dependable for years of maintenance-free operation.