The present invention related to a seabed tensioner (30), a vessel tensioner (130) and an inline tensioner (230) for tensioning an anchor chain (20) in a mooring arrangement, said tensioners comprises a chain roller (32) with sprockets supported on a first support axle (42) within a housing (34), wherein a first part of the housing is arranged to accommodate the anchor chain (20) running around the chain roller (32), and a second part of the housing (34) has an attachment for an anchor line (16) or to a floating structure (12), said first and second parts of the housing (34) are facing in opposite directions. The present invention further discloses systems and methods for mooring a floating structure. Fig. 9
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.
This publication discloses a method and a winch system for powering a winch handling loads at an end of a line associated with a winch drum, the winch being powered by means of one or more electric motors and one or more hydraulic motors via a gear, in that said one or more hydraulic motors are operated when the load in the line exceeds a predetermined load level for taking care of quick hauling in or paying out the line to compensate for vertical motion of the winch, for example vessel due to waves, and the output shaft(s) of said one or more hydraulic motors are connected to the drum shaft through combination of a sun wheel, planet wheels and parallel wheels. Both a system and use of the invention are disclosed.
B66D 1/50 - Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchorsWarping or mooring winch-cable tension control
B66D 1/52 - Control devices automatic for varying rope or cable tension, e.g. when recovering craft from water
B66D 1/58 - Safety gear responsive to excess of load
A device for a rotatable shaft is described that is driven by a drive body, such as a winch, and it is characterised in that the shaft is composed of a first shaft part (10) and a second shaft part (12), and a connecting body (14) coupled to the shaft parts, being set up to readjust the shaft parts (10, 12) from a mode where they are coupled together for a possible common rotation, and a mode where they are disengaged and independent of each other. According to the invention each locking body forms a carrier wedge (16) arranged in a cut-out (24) through the casing-formed shaft part (10), and is set up to be displaced in the radial direction into a recess in the second shaft part by an axial displacement of the connecting body (14).
F16D 11/16 - Clutches in which the members have interengaging parts with clutching members movable otherwise than only axially
F16D 1/112 - Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling the interengaging parts comprising torque-transmitting surfaces, e.g. bayonet joints
B66D 1/14 - Power transmissions between power sources and drums or barrels
A device is described for handling of a line that is coiled onto a rotary drum, where the line that is coiled is led through a breaking body (20) that gives a firm and approximately constant tightening in the stretch of the line towards the drum so that the coils of the line around the drum are lying sufficiently tightened. The device is characterised in that the breaking body (20) comprises breaking units (21,22,23) that offer resistance against the coiling of the drum (11) of the line, said breaking body (20) comprises a number of line guiding discs (21,22,23) via which the line is set up to be led and form a loop, said disc guide groves (36) offer said breaking effect against the hawser up to the drum (11). According to the invention, the device can be used in the handling of hawsers for anchor handling that are loosely coiled onto storage drums from the supplier, with the hawser from the storage drum being transferred into a considerably tightened state by being coiled onto a winch drum with such force that it lies compact and taut on the drum. According to another application, it is used for the tightening of wires, cables, fibrous hawsers, and the like on winch drums in connection with cranes.
B66D 1/50 - Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchorsWarping or mooring winch-cable tension control
The document describes a fairlead with an anchor line stopper (15) and a guiding element (36) for locking and guiding of an anchor line (50) between an offshore structure (12) and an anchor. The fairlead with the anchor line stopper (15) comprises a pivot housing (22) which is rotatably mounted on a vertical axle (20) connected to the offshore structure, and the pivot housing comprises a pivotally stopper housing (32) surrounding the anchor line stopper (15). The guiding element (36) is connected to a support adjacent the offshore structure via a stiff connection (40) which range between a guiding element axle and the offshore structure.
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