The invention relates to a system (1) for lifting a package (C), preferably in the presence of swell, the system comprising: - at least one lifting cable (3) associated with a winch (4), reeving means (5) comprising a fixed block of sheaves (51) and a movable block of one or more sheaves (52); - controlled braking means (6) that co-operate with the movable block of one or more sheaves and are controllable between an inactive configuration, in which the controlled braking means allow the movable block of one or more sheaves to move freely in translation, and an active configuration, in which the controlled braking means allow the movable block of one or more sheaves to move in one direction only; - control means (7) for actuating the winch and the controlled braking means; and - manoeuvring means (8) configured to return potential energy to the movable block of one or more sheaves.
The present invention relates to a system (1) for lifting a load (C), in particular for lifting a load (C) in the presence of a relative movement due to swell. The lifting system (1) comprises at least one lifting point (1a) which has a chassis (2) comprising: - controlled braking means (6), cooperating with a movable block of pulleys (52), and - manoeuvring means (8) which cooperate with said movable block of pulleys (52) and which are configured to restore a potential energy to said movable block of pulleys (52), so as to tend to increase said distance dimension (D).
B66C 23/02 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes with non-adjustable and non-inclinable jibs mounted solely for slewing movements
B66D 1/52 - Control devices automatic for varying rope or cable tension, e.g. when recovering craft from water
B63B 27/10 - Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes
B66C 13/02 - Devices for facilitating retrieval of floating objects, e.g. for recovering craft from water
Disclosed is a mechanical connection device designed for the detachable mechanical connection of the free ends of two offshore lines, advantageously a mooring line and a messenger line. The mechanical connection device includes two modules that are attached to a free end of the offshore lines. The mechanical connection device includes a locking unit that includes an operating member, to operate the locking unit from a locked configuration to an unlocked configuration. The operating member is movable between two positions with a translational degree of freedom parallel to the longitudinal axis of the modules in the assembled state, preferably in a downstream to upstream direction.
B63B 21/20 - Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
F16G 11/02 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with parts deformable to grip the cable or cablesFastening means which engage a sleeve or the like fixed on the cable
4.
Dismantlable link, suitable in particular for interconnecting two chains for anchoring floating equipment to the ground
Disclosed is a demountable link, suitable in particular for interconnecting two chains for anchoring floating equipment to the ground. This demountable link, shaped like an oblong ring, includes two straight sections connected by two curved sections, and includes: —two side parts each forming one of the curved sections, and—two connecting parts, each forming at least one portion of one of the straight sections, the side parts being assembled with the connecting parts, through removable fastening unit.
F16G 13/14 - Hauling- or hoisting-chains built up from readily-separable links
B63B 21/20 - Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
F16G 15/02 - Chain couplingsShacklesChain jointsChain linksChain bushes for fastening more or less permanently
B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
F16G 11/03 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes incorporating resiliently-mounted members for attachment of the cable end
5.
CAPSTAN FOR SYSTEM FOR ANCHORING AN OFFSHORE APPARATUS TO THE SEA FLOOR
A capstan (2) for a system for anchoring an offshore apparatus to the sea floor is suitable for tensioning an anchoring chain (3) comprising at least two chain strands (31, 32) having different sizes. The capstan (2) comprises a frame (5) bearing a sprocket (6) which comprises multiple radial teeth (62) distributed around its periphery and designed for insertion into the opening (3113, 3213) in the links (311, 321) of the chain (3), the median link plane (3114, 3214) of which is parallel to the axis of rotation (6’). Each of the radial teeth (62) comprises two lateral faces (621), each provided with at least two contact surfaces (63, 64), namely: - a distal contact surface (63) having a first size allowing the contact surface to cooperate with a curved section (3112) of a link (311) of the upstream chain strand (31); and - a proximal contact surface (64) that is located between the distal contact surface (63) and the axis of rotation (6’) and has a second size that allows the contact surface to cooperate with a curved section (3212) of a link (321) of the downstream chain strand (32).
Disclosed is a fairlead intended to engage with an anchor chain, for a system for anchoring a floating installation to the ground. The fairlead includes two structures assembled by pivot connection of axis, one upstream, for rigidly connecting the fairlead to the floating installation, and the other downstream, including—a unit for blocking the translational movement of the anchor chain, and—a guide, for guiding a change in direction of the anchor chain. Furthermore, the downstream structure includes two lateral plates delimiting the passage of the chain, the upstream end of each of the plates including a U-shaped bearing receiving an additional arm of the upstream structure and engaging together via a journal, the guide extending between the internal branches of the two bearings.
The invention concerns a device for manoeuvring and storing a rope, in particular a ship hawser. Said device comprises a vertical drum (2) engaging with means (3) for rotating same. Said vertical drum (2) comprises a tubular body (21) that comprises two opposing surfaces: - an outer surface (211), around which said rope is capable of being wound, and - an inner surface (212), delimiting at least a lower portion (51) of a vertical passage (5). Said vertical passage (5) comprises two opposing ends: - a lower end (511) provided with a through-opening that extends through said tubular body (21), and - an upper end (522) associated with a system (4) for storing said rope and for manoeuvring said rope in translation along said vertical passage (5).
B63B 21/04 - Fastening or guiding equipment for chains, ropes, hawsers, or the like
B65H 75/42 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools or machines
The present invention relates to a dismantlable link (1), suitable in particular for interconnecting two chains for anchoring floating equipment to the ground. This dismantlable link (1), shaped like an oblong ring, comprises two straight sections (2) connected by two curved sections (3), and includes: • - two side parts (6) each forming one of said curved sections (3), • and - two connecting parts (5), each forming at least one portion of one of said straight sections (2),
The present invention concerns a fairlead (1) intended to engage with an anchor chain (C), for a system for anchoring a floating installation to the ground. Said fairlead (1) comprises two structures (10, 11) assembled by pivot connection means (12) of axis (12'), one upstream (10), for rigidly connecting said fairlead to said floating installation, and the other downstream (11), comprising - means (14) for blocking the translational movement of said anchor chain (C), and - guide means (13), for guiding a change in direction of the anchor chain (C). Furthermore, the downstream structure (11) comprises two lateral plates (111) delimiting the passage of the chain (C), the upstream end (111a) of each of said plates (111) comprising a U-shaped bearing receiving an additional arm (1021) of the upstream structure (10) and engaging together via a journal (12a), said guide means (13) extending between the internal branches of the two bearings (111a).
A device for translationally maneuvering a structure able to move with respect to a fixed support, includes at least one rack and at least one output pinion which is driven by motor elements via a gear train borne by a chassis. At least one element of the gear train consists in a slave element borne by a shaft equipped with torque limiting elements collaborating with the chassis and having a limit torque which is determined so as to: immobilize the slave element in terms of rotation with respect to the chassis when its torque is below the limit torque to permit translational maneuvering of the mobile structure by the turning of the output pinion; and allow the slave element to rotate with respect to the chassis when its torque is higher than the limit torque, to avoid a static or dynamic overload being applied to the gear train.
E02B 17/08 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
F16H 35/10 - Arrangements or devices for absorbing overload or preventing damage by overload
F16H 19/04 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising a rack
F16H 1/46 - Systems consisting of a plurality of gear trains, each with orbital gears
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
11.
Fairlead for guiding an anchoring chain and intended to be provided to anchoring equipment on the floor of a floating platform
A fairlead for guiding an anchor chain, intended to equip a ground anchor system for a floating platform, includes a bending structure for guiding a direction change of the associated anchor chain, and a locking structure that includes a grip jaw consisting of two jaws associated with operating elements for rotatably moving the jaws in opposite directions. The operating elements include: (a) an inert mass, referred to as “counterweight”, which is movably coupled to the jaws and which is height-adjustable between a low position and a high position corresponding to an active position and an inactive position of the jaws, respectively, so as to operate and tend to maintain the jaws in the active position, and (b) an actuator driven by control elements, for operating the jaws from the active position to the inactive position and for operating the counterweight from the low position to the high position.
The present invention relates to a device for the translational manoeuvring of a structure that is able to move with respect to a fixed support, advantageously an aerial lift, which device (1) comprises at least one rack (2) and at least one output pinion (3) which is driven by motor means (4) and is so via a gear train (5) borne by a chassis (C). At least one of the elements (16) of said gear train (5) consists in a slave element (16) borne by a shaft (17) equipped with torque limiting means (18) collaborating with said chassis (C) and having a limit torque which is determined in such a way: as to immobilize said slave element (16) in terms of rotation with respect to said chassis (C) when its torque is below said limit torque so as to allow translational manoeuvring of said mobile structure by the turning of said output pinion (3, 19), and - as to allow said slave element (16) to rotate with respect to said chassis (C) when its torque is higher than said limit torque, so as to avoid a static or dynamic overload being applied to said gear train (5).
E02B 17/08 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
F16H 35/10 - Arrangements or devices for absorbing overload or preventing damage by overload
13.
FAIRLEAD FOR GUIDING AN ANCHORING CHAIN AND INTENDED TO BE PROVIDED TO ANCHORING EQUIPMENT ON THE FLOOR OF A FLOATING PLATFORM
The present invention relates to a fairlead (1) for guiding an anchoring chain (C) and intended is to be provided to anchoring equipment (2) on the floor of a floating platform. Said fairlead (1) comprises a direction-reversing structure (10), for guiding a change in direction of said corresponding anchoring chain (C), and a locking structure (11) that comprises a jaw assembly consisting of two jaws that are combined with a means (22) for rotatably moving said jaws in a reverse direction. Said moving means (22) comprises: (a) a so-called "counterweight" inert mass (25) that is movably coupled with said jaws and that is height-adjustable between a low position and a corresponding high position, to an operative position and an inoperative position of said jaws, respectively, so as to move and tend toward maintaining said jaws in said operative position; and (b) an actuating means (26) that is controlled by a control means, and is intended for moving said jaws from said operative position to said inoperative position, and is intended for moving said counterweight (25) from said low position to said high position.
The present invention relates to an installation for anchoring a floating platform (P), for example an oil platform, to the ground by means of chains (2), the manoeuvring station (3) of said platform having: activatable/deactivatable stopper means (5) for each of the anchoring chains (2), making it possible to lock in position the associated chain (2), which ends in an upstream free length (2') having an end connecting link (6), said stopper means (5) being disposed on one and the same line (E) and each being associated with a reservoir housing (13) for storing said upstream free length (2') of the associated chain (2), and tensioning means (7) which are common to the different chains (2), said tensioning means comprising a single tensioning winch (7) which is mounted in a mobile manner above said stopper means (5), said tensioning winch (7) having a master length of chain (8), the downstream end of which has a downstream link that is able to be secured removably to the connecting link (6) of the upstream free length of said anchoring chains (2), and the upstream end of which is stored in a reservoir container (22).
Off-Shore Drilling Platform and Drydock Apparatus-Namely, Pipe Handling Machines Comprising Motor-Driven Grippers and Rotating Clamp Arms; Motor-Driven Deck Cranes, Winches, Jacks, Turntables and Mountings; Elevating Gear Units for Platform Jack-Up Rigs; Electrical and Hydraulic Motors; Nautical Towing and Mooring Winches and Electrical and Hydraulic Motor Controls Therefor; and Deck and Platform Crane Tractors, All Sold as a Unit
16.
DEVICE FOR TRANSLATIONALLY MANOEUVRING A STRUCTURE THAT IS ABLE TO MOVE WITH RESPECT TO A FIXED SUPPORT
The present invention relates to a device for the translational manoeuvring of a structure that is able to move with respect to a fixed support, advantageously an aerial lift, which device (1) comprises at least one rack (2) and at least one output pinion (3) which is driven by motor means (4) and is so via a gear train (5) borne by a chassis (C). At least one of the elements (16) of said gear train (5) consists in a slave element (16) borne by a shaft (17) equipped with torque limiting means (18) collaborating with said chassis (C) and having a limit torque which is determined in such a way: as to immobilize said slave element (16) in terms of rotation with respect to said chassis (C) when its torque is below said limit torque so as to allow translational manoeuvring of said mobile structure by the turning of said output pinion (3, 19), and - as to allow said slave element (16) to rotate with respect to said chassis (C) when its torque is higher than said limit torque, so as to avoid a static or dynamic overload being applied to said gear train (5).
E02B 17/08 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
F16H 35/10 - Arrangements or devices for absorbing overload or preventing damage by overload
17.
FAIRLEAD INTENDED TO ENGAGE WITH AN ANCHOR CHAIN, FOR A SYSTEM FOR ANCHORING A FLOATING INSTALLATION TO THE GROUND
The present invention concerns a fairlead (1) intended to engage with an anchor chain (C), for a system for anchoring a floating installation to the ground. Said fairlead (1) comprises two structures (10, 11) assembled by pivot connection means (12) of axis (12'), one upstream (10), for rigidly connecting said fairlead to said floating installation, and the other downstream (11), comprising - means (14) for blocking the translational movement of said anchor chain (C), and - guide means (13), for guiding a change in direction of the anchor chain (C). Furthermore, the downstream structure (11) comprises two lateral plates (111) delimiting the passage of the chain (C), the upstream end (111a) of each of said plates (111) comprising a U-shaped bearing receiving an additional arm (1021) of the upstream structure (10) and engaging together via a journal (12a), said guide means (13) extending between the internal branches of the two bearings (111a).
The present invention relates to a dismantlable link (1), suitable in particular for interconnecting two chains for anchoring floating equipment to the ground. This dismantlable link (1), shaped like an oblong ring, comprises two straight sections (2) connected by two curved sections (3), and includes: - two side parts (6) each forming one of said curved sections (3), and - two connecting parts (5), each forming at least one portion of one of said straight sections (2),
The present invention relates to a fairlead (1) for guiding an anchoring chain (C) and intended is to be provided to anchoring equipment (2) on the floor of a floating platform. Said fairlead (1) comprises a direction-reversing structure (10), for guiding a change in direction of said corresponding anchoring chain (C), and a locking structure (11) that comprises a jaw assembly consisting of two jaws that are combined with a means (22) for rotatably moving said jaws in a reverse direction. Said moving means (22) comprises: (a) a so-called "counterweight" inert mass (25) that is movably coupled with said jaws and that is height-adjustable between a low position and a corresponding high position, to an operative position and an inoperative position of said jaws, respectively, so as to move and tend toward maintaining said jaws in said operative position; and (b) an actuating means (26) that is controlled by a control means, and is intended for moving said jaws from said operative position to said inoperative position, and is intended for moving said counterweight (25) from said low position to said high position.
La présente invention concerne un dispositif de connexion mécanique, conçu pour la connexion mécanique amovible des extrémités libres (L11, L21) de deux lignes offshore (L), avantageusement une ligne d'ancrage et une ligne messager. Le dispositif de connexion mécanique (1) comprend deux modules (2, 3) qui sont
attachés avec une extrémité libre (L11, L21) des lignes offshore (L). Le dispositif de connexion mécanique (1) comprend des moyens de verrouillage 5 qui comportent un organe de man uvre (6), pour man uvrer les moyens de verrouillage (5) depuis une configuration verrouillée jusqu'à une configuration déverrouillée. L'organe de man uvre (6) est mobile entre deux positions selon un degré de liberté en translation (T) parallèle à l'axe longitudinal (1') des modules (2, 3) en état assemblé, de préférence dans un sens aval vers amont.
