EP0030909A2 - Vorrichtungen und Verfahren zum Übersetzen zwischen einem Schiff und einer ortsfesten Konstruktion in offener See - Google Patents

Vorrichtungen und Verfahren zum Übersetzen zwischen einem Schiff und einer ortsfesten Konstruktion in offener See Download PDF

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Publication number
EP0030909A2
EP0030909A2 EP80430024A EP80430024A EP0030909A2 EP 0030909 A2 EP0030909 A2 EP 0030909A2 EP 80430024 A EP80430024 A EP 80430024A EP 80430024 A EP80430024 A EP 80430024A EP 0030909 A2 EP0030909 A2 EP 0030909A2
Authority
EP
European Patent Office
Prior art keywords
boat
gangway
deck
articulated
air cushion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP80430024A
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English (en)
French (fr)
Other versions
EP0030909B1 (de
EP0030909A3 (en
Inventor
Alain Bougaran
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chambon - Generale De Remorquage Et De Travaux Maritimes Par Actions Dite Cie SC Ste
Original Assignee
Chambon - Generale De Remorquage Et De Travaux Maritimes Par Actions Dite Cie SC Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chambon - Generale De Remorquage Et De Travaux Maritimes Par Actions Dite Cie SC Ste filed Critical Chambon - Generale De Remorquage Et De Travaux Maritimes Par Actions Dite Cie SC Ste
Publication of EP0030909A2 publication Critical patent/EP0030909A2/de
Publication of EP0030909A3 publication Critical patent/EP0030909A3/fr
Application granted granted Critical
Publication of EP0030909B1 publication Critical patent/EP0030909B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/24—Bridges or similar structures, based on land or on a fixed structure and designed to give access to ships or other floating structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures

Definitions

  • the subject of the invention is devices and a method for transferring personnel or small equipment, between a boat and a fixed structure, such as an oil research platform, a buoy, an isolated lighthouse, a moored oil ship. serving as storage and any other similar fixed or semi-fixed structure, located at sea.
  • a fixed structure such as an oil research platform, a buoy, an isolated lighthouse, a moored oil ship. serving as storage and any other similar fixed or semi-fixed structure, located at sea.
  • the technical sector of the invention is that of the construction of equipment for maritime transport and research at sea.
  • transhipments can be carried out by means of a basket or a net suspended from a crane which belongs to the fixed structure.
  • This system is very dangerous because the boat is subject to swell movements, which creates the risk of a sudden impact between the basket or the net and the deck of the boat.
  • the attachment of the bridge to the fixed structure must be at a level sufficient to be out of reach of the wave crests at high tide. This results in a significant drop in height at low tide between the deck of the ship and the end of the gangway attached to the structure. If such a gangway is relatively short, the upward slope is significant, which makes it difficult to tranship the equipment. To avoid a slope that is too steep, a longer gangway must be used, which increases the cost and complicates the handling of the gangway.
  • transhipment devices carried by a boat which are composed of an extendable gangway, for example a gangway composed of a flexible strip and a reel.
  • An objective of the present invention is to provide transshipment devices of the orientable gangway type articulated to the fixed structure around at least one vertical axis, which remedy the faults of the gangways known to date and which in particular allow the boat to follow freely swell movements without creating constraints in the gangway, which makes it possible to build lighter gangways than gangways of this known type.
  • Another object of the present invention is to provide transhipment devices which can be fitted to unmanned fixed structures devoid of any source of energy.
  • the transfer devices according to the invention comprise, in a known manner, an orientable gangway, one end of which is articulated to a fixed structure around a vertical axis and it comprises means for orienting the gangway in the axis of a boat by rotating it around this vertical axis.
  • a transfer device comprises a staircase which is articulated at the second end of the gangway and which is supported on a clear area of the deck of the boat by means of an air cushion.
  • the lower end of the staircase is connected to the air cushion by means of a suspension, for example an oleopneumatic suspension and a ball joint.
  • a suspension for example an oleopneumatic suspension and a ball joint.
  • a particular device comprises an orientable drum which pivots about a vertical axis and which comprises two vertical cylinder portions centered on said vertical axis and two arms which interconnect two ends of said cylinder portions, which arms and portions of cylinders are symmetrical two by two with respect to an axial plane and it comprises two ropes of the same length, one end of which is hooked respectively to the free end of each of the two arms and the two other ends of which are fixed to a member of common attachment which is intended to be moored at the rear end of said boat, so that when the boat exerts a traction on the ropes these are pressed against the cylinder portions and exert on the orientable drum a constant torque which brings said axial plane of symmetry and the steerable bridge in the axis of the boat.
  • the walkway is composed of longitudinal members and a beam which form a parallelogram articulated around four horizontal axes, two axes of which are articulated on the structure which supports the staircase.
  • a device comprises a substantially horizontal orientable gangway and the staircase which connects the free end of the gangway to the deck of the boat is an extendable staircase formed by several flights articulated one at a other and foldable or unfoldable under the action of a jack and connecting rods and the lower end of the last lower flight carries an air cushion which comes to bear on the deck of the boat.
  • the invention results in new devices for transferring personnel, equipment or food between a boat and a fixed structure located in the open sea and not sheltered, for example an offshore oil research platform or any other structure. fixed or similar semi-fixed.
  • the transfer devices according to the invention are designed to serve structures located in the open sea which can be inhabited or uninhabited and which may or may not be provided with energy sources.
  • the transfer devices according to the invention are supported on a clear area located aft of the deck of the service, by means of an air cushion which constitutes a simple support, sliding freely on the deck.
  • an air cushion which constitutes a simple support, sliding freely on the deck.
  • the transverse horizontal movements of the boat are compensated for by the orientation of the gangway around its vertical pivot axis.
  • the vertical movements of the boat result in a pivoting of the gangway in the vertical plane in the case of a tilting gangway.
  • a non-tilting horizontal gangway there is interposed between the gangway and the deck of the boat an extendable staircase formed of several flights articulated together and, in this case, the vertical movements of the boat are compensated by the variations in total height of the extendable staircase.
  • the staircase allows to climb over obstacles that would be at the rear end of the ship.
  • the pivoting drum which equips the devices according to the invention in association with two ropes of the same length forming a crow's feet which is moored to the boat and kept stretched by it make it possible to keep the gangway oriented in the axis of the boat with constant torque throughout the transhipment period.
  • Figures 1 and 2 show part 1 of a fixed structure located in the open sea, for example a corner pile an oil research platform or any other similar structure, for example an oceanographic buoy, a fixed beacon, a lighthouse, etc.
  • the reference 2 represents the rear end of a boat which brings personnel and / or small equipment intended for the structure.
  • the boat can be of any known type used for the supply of the structure with food or material or for the relief of the teams.
  • the structure 1 can also be a semi-fixed structure, for example an oil tanker or a work or hotel ship which is anchored.
  • the transfer device according to the invention is designed to be able to be used with unmanned structures and devoid of any source of energy.
  • the reference 3 designates the entire transhipment device which allows the transfer of personnel and equipment between the boat and the structure or vice versa.
  • the transhipment device comprises a gangway 4 which is articulated to a console 5 fixed to the structure 1. It further comprises, at the end opposite the console, a staircase 6 which connects the gangway to the rear end of the bridge of the boat 2.
  • the console 5 is fixed, for example by welding, to a corner stack 1 of the fixed structure and it projects beyond it. It supports two bearings 7a and 7b in which a vertical axis 8 journals.
  • the upper end of the console 5 forms a circular platform 9 for access to the bridge 4, which is centered on the axis 8.
  • the head of the axis 8, which projects above the platform 9, is associated with a rotary damper 10.
  • the vertical axis 8 carries an orientable drum 11 which comprises at the front two cylinder portions 13a and 13b centered on the axis 8 and, at the rear, two arms 12a and 12b which interconnect the rear ends of the portions cylindrical.
  • the arms 12a and 12b are symmetrical with respect to an axial plane PP 'as are the two cylinder portions 13a and 13b.
  • the drum 11 has two vertical flanges 14a and 14b symmetrical with respect to the plane PP ', which serve as bearings with two horizontal axes 15 and 16, perpendicular to the plane PP', around which the bridge 4 is articulated.
  • two flexible strands 17a and 17b of the same length are fixed, for example two polyamide ropes, two cables or two straps, which converge towards a common fastening member 18, for example towards a ring , forming a crow's feet.
  • the two strands 17a and 17b are supported on the surfaces of the cylinders 13a and 13b so that when the crow's feet are pulled, the torque exerted on the drum 11 remains constant whatever the position of crow's feet.
  • the strands 17a and 17b support an umbilical cable 21 which is suspended from the strands of the crow's feet, for example by rings or by elastic hangers 22.
  • the umbilical cable 21 comprises multiple conduits through which compressed fluids are used to maneuver and maintain the gangway.
  • the sources of compressed fluids are on the boat 2.
  • the gangway 4 is made up of two superimposed metal structures and hinged together to form an articulated parallelogram.
  • the upper structure is formed by two beams 23a and 23b which are interconnected by spacers and which carry a deck 24, for example a deck of perforated or striated sheets or gratings serving as an access ramp.
  • the two longitudinal members have the form of a trellis structure visible in FIG. 1 and serve as guardrails on either side of the ramp.
  • the lower structure is constituted by a beam 25 or by two beams connected to each other by spacers.
  • the ends of the side members 23a and 23b and of the beam 25 situated on the side of the fixed structure 1 are articulated respectively around the horizontal axes 15 and 16 carried by the drum 11.
  • the ends of the side members 23a and 23b and of the beam 25 opposite the fixed structure 1 are articulated respectively around two horizontal axes 26 and 27.
  • the axes 26 and 27 are journalled in two flanges 28a and 28b which support the steps of the staircase 6.
  • the flanges 28a and 28b also carry guard rails 29 that frame the staircase.
  • the lower end of the flight of stairs 6 includes a step platform 30 equipped with a railing 31 which faces the stairs.
  • the platform 30 is slightly wider than the staircase, which facilitates access to the running board from the deck of the ship.
  • the flight of stairs 6 rests on the deck of the boat 2 by means of a device 32 of the air cushion type constituted by a set of vertical skirts open at their lower end into which compressed air is injected which escapes at the periphery of the lower end of the skirts.
  • FIG. 3 represents a horizontal section along III-III of the air cushion 32. It can be seen in this figure that the air cushion comprises a set of cylindrical skirts 32a placed inside a skirt 32b which surrounds them. Skirts 32a and 32b are vertical cylinders made of a flexible material, for example artificial rubber or elastomer.
  • This construction of the air cushion composed of a plurality of juxtaposed skirts allows that, even if one of the skirts is deteriorated or passes over a drop, the other skirts continue to play their lifting role.
  • the skirts are supplied with compressed air, for example through a conduit passing under the bridge then in the umbilical 21 which links them to a compressor 35 carried by the boat 2.
  • the air cushion 32 is connected to the flight of stairs by a ball joint 33 which allows the air cushion to freely follow the roll and pitch movements of the boat and to remain in close contact over its entire surface with The bridge of the boat.
  • An oleopneumatic suspension 34 is interposed between the joint 33 and the flight of stairs. Its function is to absorb the impact of the air cushion on the deck of the boat, especially when descending from the bridge.
  • the air cushion 32 constitutes a simple support of the staircase and the gangway on the deck of the boat and this support can slide without friction in all directions provided that the rear of the boat has an area free of any obstacle .
  • the axial horizontal movements of the boat are not transmitted to the gangway, which avoids the creation of significant stresses in the gangway, the construction of which can therefore be reduced. In addition, this avoids transmitting shocks to the fixed structure.
  • the air cushion can be supplied with compressed air by a fan which is fixed under the gangway or under the stairs and which is driven by an electric motor which is supplied with electric energy by a conductor which passes through the umbilical 21 and which connects the engine to a source of electrical energy carried by the boat.
  • the air cushion 32 can be supplied directly from the boat, after having lowered the air cushion near the deck of the boat, by connecting a flexible pipe. of compressed air connected to a compressor on a fitting carried by the air cushion.
  • the transfer device also comprises means for controlling the lifting of the bridge 4.
  • this means is a hydraulic cylinder 36 which is articulated, on the one hand, on the drum 11 and, on the other hand, on the gangway 4.
  • This cylinder is supplied with oil under pressure by a conduit which passes through the umbilical 21 and which connects it to a hydraulic unit carried by the boat.
  • the cylinder 36 can be replaced by equivalent means.
  • it can be replaced by a counterweight which is connected to the gangway 4 by a cable passing over a deflection pulley and which is associated with a hydraulic damper to avoid too rapid raising of the gangway.
  • a tank with an opening bottom is placed under the staircase 6.
  • the opening bottom is operated for example by a small jack.
  • a small winch with constant tension placed at the rear of the boat makes it possible to wind the maneuvering rope which hangs under the gangway to bring the gangway down to the boat when it approaches the fixed structure.
  • the closing cylinder of the tank opening bottom which is an opening cylinder due to lack of pressure, controls the opening of the tank which empties quickly and the gangway is raised under the action of the counterweight before the air bag is damaged.
  • the water tank can be replaced by a second counterweight which is fixed under the gangway 4 and which can be moved longitudinally by an auxiliary jack which is antagonistic to a return means, for example a spring or of an oleopneumatic tank which tends to bring the second counterweight to a rest position located near the horizontal axes 15 and 61. In this rest position, the second counterweight does not exert sufficient torque to counterbalance the lifting torque of the bridge exerted by the first counterweight.
  • the second counterweight is moved away from the axes 15 and 16 and it then exerts on the gangway a sufficient vertical force to keep the air cushion in abutment against the deck of the boat.
  • the device according to FIGS. 1 and 2 preferably also comprises an oleopneumatic accumulator 37, which is placed for example inside the drum 11.
  • an oleopneumatic accumulator 37 which is placed for example inside the drum 11.
  • the accumulator 37 is automatically connected to the jack 36 and the energy accumulated in the form of pressure in the accumulator 37 is sufficient to ensure the lifting of the bridge 4.
  • the bridge 4 When the boat is near the structure 1, which may not be occupied, the bridge 4 is placed in the raised position out of reach of the crests of the waves.
  • the two ropes 17a and 17b which constitute the crow's feet and which support the umbilical are held under the bridge by the spring reel 20.
  • the bridge is preferably located on the side of the fixed structure which is opposite where the prevailing wind comes from.
  • the boat 2 approaches by moving back from the fixed structure 1. It turns to place itself in the most sheltered sector. A sailor, posted on the aft deck of the boat, hooks, by means of a hook, the loop 18 and brings him towards the boat to which he moored. It then connects the umbilical 21 to the connectors provided for this purpose.
  • the boat then starts to move slowly, which stiffens the ropes 17a and 17b. These exert a torque on one of the arms 12a or 12b, which brings about the rotation of the drum 11 around the vertical axis 8.
  • the gangway is oriented so as to be placed vertically on the deck of the boat. We then push the speed of the boat's propellers to stretch the crow's feet, which keeps the gangway in the longitudinal axis of the boat.
  • the operator of the gangway has a control console 35a which allows him to control the jack 36 through the umbilical 21 and to supply compressed air to the air cushion 32. He therefore controls the jack 36 which allows the gangway to descend to the deck of the boat by pivoting it around the horizontal axes 15 and 16.
  • the operator can vary the speed of the jack by varying the oil flow.
  • the living force of the bridge is absorbed both by the air cushion 32 and by the suspension 34 which is for example an oleopneumatic reservoir.
  • the jack 36 is automatically disconnected, so that the gangway is kept supported by its own weight.
  • the roll and pitch movements of the boat are reflected on the gangway which oscillates around the vertical axis 8 and around the horizontal axes 15 and 16.
  • the pull that the boat exerts on the crow's feet keeps the gangway in the axis of the boat and the air cushion comes and goes along the longitudinal axis of the boat for a distance which is equal to the variations in length of the crow's feet which is kept constantly stretched by the forward thrust of the propellers.
  • the gangway is raised by means of the jack 36 and at high speed so that in any case the gangway cannot be caught and struck by the deck of the ship which oscillates under the effect of the swell.
  • the actuator has an end stop which automatically cuts the power to the actuator when the gangway reaches the high position and which locks the actuator in this rest position.
  • the umbilical 21 is then isolated from the sources of compressed air and oil under pressure. We disconnect the umbilical. The forward thrust of the propellers is reduced and the end 18 of the crow's feet is released, which is returned immediately under the bridge by the strap 19 and by the spring reel 20.
  • the gangway is immediately taken up by the energy stored in the oleopneumatic accumulator 37.
  • the lifting of the gangway is immediately controlled from the console 35a by means of the jack 36.
  • the rotary damper 10 which is mounted on the head of the axis 8, prevents a sudden rotation of the bridge around the axis 8 under the effect of the torque due to the traction of the uncut strand, which gives the operator time to raise the gangway without risk for the personnel who have the time to evacuate it.
  • the orientation drum 11 is extended downwards by a cylindrical skirt 38 made of perforated sheet metal, which forms a shield which descends below the surface of the sea, at low tide, and which is intended to dissipate part of the energy of the swell and to shelter the area where the boat stands.
  • a cylindrical skirt 38 made of perforated sheet metal, which forms a shield which descends below the surface of the sea, at low tide, and which is intended to dissipate part of the energy of the swell and to shelter the area where the boat stands.
  • several compressed air lines 39 are placed inside this shield which open at the bottom of the shield below the surface of the water. These pipes 39 are supplied with compressed air via the umbilical 21 during the transhipment operations.
  • the compressed air rises to the surface, creating a bubble barrage inside the shield which reduces the agitation of the sea upstream of the ship and under the ship during the transhipment operations.
  • FIG. 4 represents a partial view of the free end of the gangway in an alternative embodiment which differs from the embodiment of FIGS. 1 to 3, in that the gangway 4 is a substantially horizontal gangway which is fixed in console on a fixed structure being articulated around a vertical axis only which allows it to be oriented in the axis of the boat.
  • the staircase with a single flight is replaced by a staircase 40 comprising several flights articulated between them, so that the staircase is extendable in height.
  • These flights of stairs are offset laterally relative to the gangway and they are offset relative to each other.
  • FIG. 4 represents an exemplary embodiment in which the staircase 40 comprises two flights 40a and 40b.
  • the fly upper comprises, on each side of the stair treads 41, two beams 42a and 42b which are articulated at their two ends respectively around the axes 43a, 44a and 43b, 44b and which form an articulated parallelogram.
  • the flight of stairs 40b includes steps 45 which are supported by two beams 46a and 46b.
  • the longitudinal members 46a, 46b are articulated at their two ends respectively around the axes 47a, 47b and 48a, 48b.
  • the flights of stairs include railings 49.
  • the lower end of the lower flight 40b carries a platform. access 54 which rests on the deck of the boat 2 by means of an air cushion 32, a hinge 33 and an oleopneumatic suspension 34 which fulfill the same functions as the homologous elements of the Figure 1 bearing the same references.
  • a jack 50 makes it possible to control the movements of the upper flight.
  • a connecting rod 51 is articulated by one of its ends 52 on the gangway 4 and by the other end 53, on an extension of the beam 46a.
  • each flight is connected to the upper flight by a connecting rod identical to the connecting rod 51.
  • the vertical movements of the boat are compensated by the variations in total height of the extendable staircase and when the height of the staircase varies, the air cushion 32 moves while remaining on the same vertical line.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Earth Drilling (AREA)
  • Devices For Medical Bathing And Washing (AREA)
EP80430024A 1979-12-12 1980-11-27 Vorrichtungen und Verfahren zum Übersetzen zwischen einem Schiff und einer ortsfesten Konstruktion in offener See Expired EP0030909B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7930808A FR2471311A1 (fr) 1979-12-12 1979-12-12 Dispositifs et procede de transbordement entre un bateau et une structure fixe situee en pleine mer
FR7930808 1979-12-12

Publications (3)

Publication Number Publication Date
EP0030909A2 true EP0030909A2 (de) 1981-06-24
EP0030909A3 EP0030909A3 (en) 1981-12-23
EP0030909B1 EP0030909B1 (de) 1983-12-28

Family

ID=9232824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80430024A Expired EP0030909B1 (de) 1979-12-12 1980-11-27 Vorrichtungen und Verfahren zum Übersetzen zwischen einem Schiff und einer ortsfesten Konstruktion in offener See

Country Status (5)

Country Link
US (1) US4333196A (de)
EP (1) EP0030909B1 (de)
DE (1) DE3066028D1 (de)
FR (1) FR2471311A1 (de)
NO (1) NO803737L (de)

Cited By (6)

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EP0287504A1 (de) * 1987-03-17 1988-10-19 Paul Glassey Vorrichtung zum Einstellen einer Landebrücke entsprechend dem Wasserstand
AU603006B2 (en) * 1987-09-18 1990-11-01 Norman Tonkin Floating bridge
GB2246992A (en) * 1991-09-20 1992-02-19 Alan Cundall Gangway
WO2009118767A1 (en) * 2008-03-28 2009-10-01 Opacmare S.P.A. A multipurpose gangway for vessels
GB2495717A (en) * 2011-10-17 2013-04-24 Windsea As Gangway for an offshore structure
WO2015163755A1 (en) * 2014-04-22 2015-10-29 Klaas Cornelis Rietema Gangway assembly

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US5396676A (en) * 1989-04-03 1995-03-14 The Serco Corporation Vertically storing dock leveler
US6131224A (en) * 1998-04-16 2000-10-17 Texaco Inc. Coupling device for transfer between a static structure and a dynamic structure
SE514564C2 (sv) * 1999-07-14 2001-03-12 Macgregor Swe Ab Anordning för ramper
US6813792B2 (en) * 2001-12-07 2004-11-09 Robert Edward Miller Gangway including an articulated ramp and ladder
GB2394498B (en) * 2002-10-23 2006-08-09 Engineering Business Ltd Mounting of offshore structures
GB0306547D0 (en) * 2003-03-21 2003-04-23 Engineering Business Ltd Apparatus for creating a local reduction in wave height
US6923140B1 (en) * 2004-03-03 2005-08-02 Aluminum Ladder Company Boat access stairway
NL1025923C2 (nl) * 2004-04-09 2005-10-11 Focus Oil And Gas Group B V Inrichting en werkwijze voor het koppelen van een vaartuig met een stationair object.
DK1781536T3 (da) * 2004-08-03 2009-03-16 Ihc Engineering Bussiness Ltd Adgangsmetode mellem marine konstruktioner og apparat
GB0503083D0 (en) * 2005-02-15 2005-03-23 Engineering Business Ltd Launch and recovery apparatus and method
GB2428656B (en) * 2005-08-01 2009-08-05 Engineering Business Ltd Gangway apparatus
GB2434823A (en) * 2006-02-06 2007-08-08 Engineering Business Ltd Transport and installation of offshore structures
US7814855B2 (en) * 2008-04-30 2010-10-19 Tex-Mex Management, Llc Swingable spacing dock
US8893853B2 (en) * 2008-12-12 2014-11-25 Wichita Tank Manufacturing, Ltd. Stair system for oilfield tank
US9382758B2 (en) * 2008-12-12 2016-07-05 Wichita Tank Manufacturing, Ltd. Stair system for oilfield tank
DE102010040899A1 (de) * 2010-09-16 2012-03-22 Aloys Wobben Schiff, sowie Gangway für selbiges
GB201019837D0 (en) * 2010-11-23 2011-01-05 Divex Ltd Bridge apparatus
EP2487102B1 (de) * 2011-02-11 2015-08-19 OSBIT Power Limited Zugangsvorrichtung zum Umladen von Schiffen auf feste Strukturen
NL2011819B1 (en) * 2012-11-19 2015-10-19 U-Sea Beheer B V Transfer system, ship and method for transferring persons and/or goods to and/or from a floating ship.
CN105544376B (zh) * 2016-01-19 2017-08-25 华德宝机械（昆山）有限公司 一种登船桥接船用渡板装置及登船桥
CN106275290B (zh) * 2016-08-31 2018-11-30 中船黄埔文冲船舶有限公司 一种跳板梯的固定装置
CN107856815A (zh) * 2017-11-17 2018-03-30 佛山市榕岸海洋工程装备有限公司 一种用于风电平台的海上舷梯
CN115432127B (zh) * 2022-09-05 2023-08-22 上海峰轶机电工程技术启东有限公司 一种登船梯

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EP0287504A1 (de) * 1987-03-17 1988-10-19 Paul Glassey Vorrichtung zum Einstellen einer Landebrücke entsprechend dem Wasserstand
AU603006B2 (en) * 1987-09-18 1990-11-01 Norman Tonkin Floating bridge
GB2246992A (en) * 1991-09-20 1992-02-19 Alan Cundall Gangway
GB2246992B (en) * 1991-09-20 1995-09-13 Alan Cundall Gangway
WO2009118767A1 (en) * 2008-03-28 2009-10-01 Opacmare S.P.A. A multipurpose gangway for vessels
GB2495717A (en) * 2011-10-17 2013-04-24 Windsea As Gangway for an offshore structure
GB2495717B (en) * 2011-10-17 2014-01-01 Windsea As Gangway for an offshore structure
WO2015163755A1 (en) * 2014-04-22 2015-10-29 Klaas Cornelis Rietema Gangway assembly
NL2012664A (nl) * 2014-04-22 2016-02-03 Cornelis Rietema Klaas Loopbrugsamenstel gemonteerd op een vloerplaat.

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DE3066028D1 (en) 1984-02-02
NO803737L (no) 1981-06-15
EP0030909B1 (de) 1983-12-28
FR2471311B1 (de) 1982-01-08
FR2471311A1 (fr) 1981-06-19
EP0030909A3 (en) 1981-12-23
US4333196A (en) 1982-06-08

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