Chain jack for the tightening of chains, comprising an upper stopper unit (20) and a lower stopper unit (30) with opposite locking pawls where each can be locked to a through-running chain (12) so that they can be detached, and also several drive units (50; 150) to push the upper and lower stopper units (20,30) mutually towards and away from each other, in which the upper and lower stopper units (20,30) each comprises two pairs of locking pawls (20a,20b;22a,22b and 30a,30b;32a,32b, respectively) which engage with mutually adjoining links (12a, 12b, . . . ) in the chain link (12), is described.

Chain jack for the tightening of chains, comprising an upper stopper unit (20) and a lower stopper unit (30) with opposite locking pawls where each can be locked to a through-running chain (12) so that they can be detached, and also several drive units (50; 150) to push the upper and lower stopper units (20,30) mutually towards and away from each other, in which the upper and lower stopper units (20,30) each comprises two pairs of locking pawls (20a,20b;22a,22b and 30a,30b;32a,32b, respectively) which engage with mutually adjoining links (12a, 12b, . . . ) in the chain link (12), is described.

A mooring system has a pre-existing subsea foundation at a first seabed location and a catenary mooring line connected to the pre-existing foundation and extending to a moored floating unit. A supplementary subsea foundation is installed at a second seabed location to upgrade the capacity of the mooring system. The mooring line is connected to the supplementary subsea foundation while the connection between the mooring line and the pre-existing subsea foundation is maintained.

A mooring system has a pre-existing subsea foundation at a first seabed location and a catenary mooring line connected to the pre-existing foundation and extending to a moored floating unit. A supplementary subsea foundation is installed at a second seabed location to upgrade the capacity of the mooring system. The mooring line is connected to the supplementary subsea foundation while the connection between the mooring line and the pre-existing subsea foundation is maintained.

A mooring connector assembly (3) has a body (10) arranged to be pivotally mounted to a structure (1), such as a tethered buoy, to be moored for movement about a pivot axis. At least a part of the body extends below the pivot axis when so mounted and oriented for use. A line stopper (17) is mounted to the part of the body which extends below the pivot axis in use and is operative to retain a mooring line (2) relative to the body. The body is configured to receive a tensioner (20) for tensioning a mooring line (2) retained by the stopper such that the tensioner urges the line at a point which is below the pivot axis when the body is oriented for use. The body may be an elongate tube (10) pivotally connected to a structure to be moored (1) at one end and fitting with a chain stopper (17) at the opposite end. The tube is configured to receive a chain tensioner (20) between the chain stopper (17) and pivot axis.

A mooring connector assembly (3) has a body (10) arranged to be pivotally mounted to a structure (1), such as a tethered buoy, to be moored for movement about a pivot axis. At least a part of the body extends below the pivot axis when so mounted and oriented for use. A line stopper (17) is mounted to the part of the body which extends below the pivot axis in use and is operative to retain a mooring line (2) relative to the body. The body is configured to receive a tensioner (20) for tensioning a mooring line (2) retained by the stopper such that the tensioner urges the line at a point which is below the pivot axis when the body is oriented for use. The body may be an elongate tube (10) pivotally connected to a structure to be moored (1) at one end and fitting with a chain stopper (17) at the opposite end. The tube is configured to receive a chain tensioner (20) between the chain stopper (17) and pivot axis.

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. Also disclosed are mooring lines and systems, including lines having tensioning connectors thereon, such as tri-plate connectors, for stretching lines.

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. Also disclosed are mooring lines and systems, including lines having tensioning connectors thereon, such as tri-plate connectors, for stretching lines.

An apparatus is for cutting a line extending from a floating vessel having a deck. The apparatus includes: two guide pins configured to move between a retracted position and an extended position, wherein a distance between the guide pins, in an extended position, is spanned by a spacer, the spacer forming a reaction surface; a cutting device mounted between the two guide pins, the cutting device being configured to move between a retracted position and an extended position; wherein the cutting device is arranged to perform a direct cut of the line against the reaction surface without holding the line prior to cutting such that the line may be cut directly independently of the orientation of the line.

Disclosed is a fairlead for guiding an anchoring element of an offshore structure, such as a floating structure, at an anchoring point, of the type having a guide for the anchoring element and a lock holding the anchoring element in position, having a locking jaw including two locking jaw elements that are movable by a maneuvering unit actuated by a controller, between a closed position preventing the anchoring element from moving in translation and an open position releasing the anchoring element. The controller is of the impulse-type, and the maneuvering unit includes a pawl that defines successive stable open and closed positions of the jaw-forming unit.