US3463271A - Offshore elevator - Google Patents

Offshore elevator Download PDF

Info

Publication number
US3463271A
US3463271A US666602A US3463271DA US3463271A US 3463271 A US3463271 A US 3463271A US 666602 A US666602 A US 666602A US 3463271D A US3463271D A US 3463271DA US 3463271 A US3463271 A US 3463271A
Authority
US
United States
Prior art keywords
platform
column
elevator
lower platform
offshore
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.)
Expired - Lifetime
Application number
US666602A
Other languages
English (en)
Inventor
Donald L St Louis
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.)
Alaska Elevator Corp
Original Assignee
Alaska Elevator Corp
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 Alaska Elevator Corp filed Critical Alaska Elevator Corp
Application granted granted Critical
Publication of US3463271A publication Critical patent/US3463271A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/0034—Maintenance, repair or inspection of offshore constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/30—Devices for guiding boats to water surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/40—Use of lowering or hoisting gear
    • B63B23/48—Use of lowering or hoisting gear using winches for boat handling
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E04G3/243—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the outside contour of a building
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E04G3/32—Hoisting devices; Safety devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically

Definitions

  • Suitable guide members on the lower platform carry rollers engaging the column, for stabilized movement.
  • the lower platform may be dropped sufficiently to directly launch a boat and/or a life raft therefrom in case of emergency.
  • Marine platforms have been proposed and built using various devices for raising and lowering men and equipment between the ocean level and a fixed upper platform.
  • the present invention has for its major object a novel elevator arrangement, which is of particular value for emergency work, wherein the elevator surrounds and controllably ascends and descends the fixed vertical leg or column that constitutes the support or one of the supports for the fixed operational platform.
  • FIGURE 1 is a generally perspective view showing the invention in its preferred embodiment as applied to an offshore drilling station;
  • FIGURE 2 is a plan view showing the lower platform or elevator deck
  • FIGURE 3 is a fragmentary view mainly in section showing the guide mountings.
  • FIGURE 4 is a plan view showing the upper deck and the elevator control mechanism.
  • the invention is disclosed in its preferred embodiment as applied to an offshore drilling rig which comprises a central hollow column 11 that may be suitably rigidly secured at its lower end to the ocean floor.
  • Column 11 is of a conventional type that houses drilling or like operations, for example, being about fourteen feet in diameter and extending about forty-three feet above the water level.
  • an upper fixed horizontal platform 12 Secured upon the upper end of column 11 is an upper fixed horizontal platform 12.
  • This upper platform carries all of the operational equipment.
  • the invention contemplates a suspended lower horizontal platform 13 that surrounds the column 11 and may be readily raised or lowered along the column between the water level and the upper fixed platform.
  • the floor of platform 13 is centrally apertured at 14 to freely extend around the column, and at the corners of the aperture are provided support brackets 15 for mounting pivoted column engaging guide members 16 which will be further described later.
  • the fixed upper platform 12 supports a motor unit, usually an electric motor 17 having a speed reduction unit 18 at its output connected through a clutch 19 to a cable drum shaft 21.
  • Shaft 21 the axis of which is horizontal, mounts two cable drums 22 and 23 on each of which are wound side by side cables 24a, 24b and 25a, 25b respectively. These cables suspend platform 13.
  • a speed governing brake 26 is mounted on shaft 21.
  • Cables 25a and 25b extend over side by side idler pulleys 27a and 27b that are rotatably and axially slidably mounted on a fixed axis horizontal idler axle 28 and down a slot 29.
  • cables 24a and 24b pass over side by side idler pulleys 31a and 31b that are rotatably and axially slidably mounted on a fixed axis horizontal idler axle 32 and down a slot 33.
  • Axles 28 and 32 are concentric, and slots 29 and 33 are aligned on a diameter of column 11. As the cables helically wind or unwind on their respective drums the pulleys they will travel back and forth along their respective axles and the platform slots allow to and from displacement of the cables.
  • Any suitable pulley arrangement may be provided for the elevator lift.
  • the lower platform 13 carries near the inner edge of aperture 14 fixed upright posts 34 and 35 on which are mounted idler pulleys 36 and 37. Cable 25a passes down under and around these pulleys and upwardly to be fixed at 38 to an anchor plate on the upper platform. Similarly, at the same side of platform 13 are two upright posts 39 and 41 mounting idler pulleys 42 and 43, and cable 25b passes down under and around these pulleys and upwardly to be fixed to an anchor at plate 44 to the upper platform. Similarly, cables 24a and 24b at the diametrically opposite side of the column 11 extend under and around idler pulleys similarly arranged and mounted on the lower platform.
  • Platform 13 has a metal grating deck 45 and along two sides are secured a lifeboat 46 and a life raft 47. Sufficient cable length is provided that the platform 13 may be controllably lowered until it is awash and the boat or raft directly launched in case of emergency.
  • Platform 13 also preferably has a clear deck area 51 which, when the elevator is raised snugly underlies the floor 52 of a landing 53 suspended as by members 54 from the upper platform.
  • a sairway 55 extends upward from the landing through a suitable opening in platform 12 to the top of that platform.
  • deck area 51 directly fits under floor 52 so that men or material on the lower platform can transfer directly into floor 52.
  • Suitable controls for the motor and brake mechanism are provided as indicated at 60 which may be operable from the lower platform.
  • Suitable limit switches operated by contact of the lower platform may be provided in the control circuit.
  • FIGURE 3 shows a form of guide means at 16 wherein a vertically extending beam 56 is intermediately horizontally pivoted at 57 in a slot 58 in bracket 15 and carries upper and lower guide rollers 59 and 61 engaging the surface of column 11.
  • Rollers 59 and 61 are freely rotatably mounted at 62 and 63 respectively, and they may be suitable pneumatic tired devices like aircraft landing wheels so that they resiliently cushion as well as guide.
  • control 60 may be on the end of a flexible control line and carried on the lower platform for such emergency operation as evacuation of the assembly during a storm or under threatening ice conditions.
  • one or more radially acting shock absorber cushion units 61 may be provided on the lower platform 13 for engaging the column 11.
  • An elevator assembly for an offshore marine apparatus of the type wherein a fixed platform is mounted on a vertical support column above the normal water level comprising an apertured lower platform freely surrounding said column in spaced relation thereto, guide members on the lower platform mounted around the inner edges of the aperture and flexible engaging the column, said guide members permitting limited lateral movement of said lower platform relative to said column, and means comprising motor and drum means on the upper platform and a system of cables connecting said motor and drum means to the lower platform for suspending said lower platform from the upper platform and for controllably raising and lowering said lower platform.
  • said guide members comprising a plurality of vertically extending pivoted members on said lower platform carrying idler rollers engaging the column, said members being equally circumferentially distributed around the column.
  • said system of cables comprising at least one cable having one end wound on said drum means, an intermediate portion passing over pulleys carried by the lower platform and the other end anchored on said upper fixed platform.
  • said drum means having a horizontal axis, and said cable extending through said upper platform within a guide slot that is parallel to said drum axis.
  • An elevator assembly for an off-shore marine apparatus of the type wherein a fixed platform is mounted on a vertical support column above the normal water level comprising a centrally apertured lower platform freely surrounding said column, guide members comprising a plurality of vertically extending pivoted members mounted around the inner edges of said lower platform and carrying idler rollers engaging said column, said members being equally circumferentially distributed around said column, means comprising motor and drum means on said upper platform and a system of cables comprising at least one cable having one end wound on said drum means, an intermediate portion passing over pulleys carried by said lower platform and the other end anchored on said upper fixed platform, said system of cables suspending said lower platform from said upper platform and controllably raising and lowering said lower platform.
  • said drum means having a horizontal axis, and said cable extending through said upper platform within a guide slot that is parallel to said drum axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
US666602A 1967-09-11 1967-09-11 Offshore elevator Expired - Lifetime US3463271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66660267A 1967-09-11 1967-09-11

Publications (1)

Publication Number Publication Date
US3463271A true US3463271A (en) 1969-08-26

Family

ID=24674691

Family Applications (1)

Application Number Title Priority Date Filing Date
US666602A Expired - Lifetime US3463271A (en) 1967-09-11 1967-09-11 Offshore elevator

Country Status (4)

Country Link
US (1) US3463271A (enrdf_load_stackoverflow)
FR (1) FR1581847A (enrdf_load_stackoverflow)
GB (1) GB1230423A (enrdf_load_stackoverflow)
NL (1) NL6812896A (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170429A (en) * 1976-09-29 1979-10-09 Compagnie Generale Pour Les Developpements Operationnels Des Richesses Sous-Marines "C.G. Doris" Installation for inspecting and repairing installations in deep water
US4433941A (en) 1980-05-12 1984-02-28 Mobil Oil Corporation Structure for offshore exploitation
US4976211A (en) * 1987-08-31 1990-12-11 Reinhardt Lloyd C Boat launching system
US6230644B1 (en) * 2000-01-27 2001-05-15 Eastern Flotation Systems, Inc. Dock and buoyant module adapted to be connected to a pile
WO2008085061A1 (en) * 2007-01-08 2008-07-17 Beerenberg Frontier As Tool carrier and method for carrying tools for cutting elongated structures
US20110315488A1 (en) * 2009-01-08 2011-12-29 Daifuku Co., Ltd. Vertically Moving Device
US8757954B1 (en) * 2013-09-03 2014-06-24 J. Edwin Roy Maritime transfer system
US20180135267A1 (en) * 2015-02-06 2018-05-17 Maritime Offshore Group Gmbh Offshore foundation structure with gangway and improved boat landing
NO342479B1 (no) * 2007-01-08 2018-05-28 1Diamond Llc Verktøyholder, samt fremgangsmåte for å holde verktøy for skjæring av langstrakte konstruksjoner.
US10046405B2 (en) 2014-11-26 2018-08-14 Quanta Associates, L.P. Salvage sawing system and method
US10786855B2 (en) 2012-12-28 2020-09-29 1 Diamond, Llc Sawing system, sawing support structure and a wire replacement unit and method
US11339549B2 (en) 2018-01-30 2022-05-24 Quanta Associates, L.P. Inclined cut GBS leg
US11536039B2 (en) * 2017-12-08 2022-12-27 Seaway Painting, L.L.C. Tower apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2530469A (en) * 2013-12-04 2016-03-30 Simon Sanderson Cushioning and flotation for suspended work platform apparatus and method
CN106498918A (zh) * 2016-10-27 2017-03-15 湖北海洋工程装备研究院有限公司 一种重力式平台升降系统
CN106544996A (zh) * 2016-10-27 2017-03-29 湖北海洋工程装备研究院有限公司 一种海洋服务平台
CN109653182A (zh) * 2018-12-31 2019-04-19 相城区黄桥宜智机电技术服务部 一种坐底式海洋平台

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE57429C (de) * K. OEHLER in Offenbach a. M< Verfahren zur Darstellung eines braunen Disazofarbstoffen aus p-Amidoacetanilid und m-Phenylendiamin
US1730974A (en) * 1928-12-11 1929-10-08 Atlantic Elevator Company Inc Elevator suspension
US2100169A (en) * 1935-09-10 1937-11-23 Otis Elevator Co Elevator roller guide shoe
US2190330A (en) * 1938-11-16 1940-02-13 Edmund S Martine Submersible chamber
US2504206A (en) * 1947-11-03 1950-04-18 Herbert A Kunzelman Cargo-handling elevator
US2957582A (en) * 1958-05-07 1960-10-25 Carroll B Lusk Grid structures

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE57429C (de) * K. OEHLER in Offenbach a. M< Verfahren zur Darstellung eines braunen Disazofarbstoffen aus p-Amidoacetanilid und m-Phenylendiamin
US1730974A (en) * 1928-12-11 1929-10-08 Atlantic Elevator Company Inc Elevator suspension
US2100169A (en) * 1935-09-10 1937-11-23 Otis Elevator Co Elevator roller guide shoe
US2190330A (en) * 1938-11-16 1940-02-13 Edmund S Martine Submersible chamber
US2504206A (en) * 1947-11-03 1950-04-18 Herbert A Kunzelman Cargo-handling elevator
US2957582A (en) * 1958-05-07 1960-10-25 Carroll B Lusk Grid structures

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170429A (en) * 1976-09-29 1979-10-09 Compagnie Generale Pour Les Developpements Operationnels Des Richesses Sous-Marines "C.G. Doris" Installation for inspecting and repairing installations in deep water
US4433941A (en) 1980-05-12 1984-02-28 Mobil Oil Corporation Structure for offshore exploitation
US4976211A (en) * 1987-08-31 1990-12-11 Reinhardt Lloyd C Boat launching system
US6230644B1 (en) * 2000-01-27 2001-05-15 Eastern Flotation Systems, Inc. Dock and buoyant module adapted to be connected to a pile
NO342479B1 (no) * 2007-01-08 2018-05-28 1Diamond Llc Verktøyholder, samt fremgangsmåte for å holde verktøy for skjæring av langstrakte konstruksjoner.
WO2008085061A1 (en) * 2007-01-08 2008-07-17 Beerenberg Frontier As Tool carrier and method for carrying tools for cutting elongated structures
GB2458053A (en) * 2007-01-08 2009-09-09 Beerenberg Frontier As Tool carrier and method for carrying tools for cutting elongated structures
GB2458053B (en) * 2007-01-08 2011-01-19 Beerenberg Frontier As Tool carrier and method for carrying tools for cutting elongated structures
US20110315488A1 (en) * 2009-01-08 2011-12-29 Daifuku Co., Ltd. Vertically Moving Device
US9272844B2 (en) * 2009-01-08 2016-03-01 Daifuku Co., Ltd. Vertically moving device
US10786855B2 (en) 2012-12-28 2020-09-29 1 Diamond, Llc Sawing system, sawing support structure and a wire replacement unit and method
US8757954B1 (en) * 2013-09-03 2014-06-24 J. Edwin Roy Maritime transfer system
US10046405B2 (en) 2014-11-26 2018-08-14 Quanta Associates, L.P. Salvage sawing system and method
US10738430B2 (en) * 2015-02-06 2020-08-11 Thyssenkrupp Steel Europe Ag Offshore foundation structure with gangway and improved boat landing
US20180135267A1 (en) * 2015-02-06 2018-05-17 Maritime Offshore Group Gmbh Offshore foundation structure with gangway and improved boat landing
US11536039B2 (en) * 2017-12-08 2022-12-27 Seaway Painting, L.L.C. Tower apparatus
US11339549B2 (en) 2018-01-30 2022-05-24 Quanta Associates, L.P. Inclined cut GBS leg

Also Published As

Publication number Publication date
GB1230423A (enrdf_load_stackoverflow) 1971-05-05
NL6812896A (enrdf_load_stackoverflow) 1969-03-13
FR1581847A (enrdf_load_stackoverflow) 1969-09-19

Similar Documents

Publication Publication Date Title
US3463271A (en) Offshore elevator
US4222140A (en) Boarding platform
US3565217A (en) Offshore elevator improvements
US4630542A (en) Nacelle
BRPI0901003A2 (pt) método de estender um objeto no leito do mar em águas muito profundas a partir de uma embarcação com um guindaste compensado para balouço, e, aparelho para suportar a carga de um objeto submerso suspenso em uma embarcação
JP3754495B2 (ja) 海洋石油採掘用の甲板昇降式装置
US4641596A (en) Boat dock and lift
JPH07237861A (ja) 昇降装置
EP2428442B1 (en) Method and assembly for safe transfer of personnel from a vessel to a stationary object
US3064829A (en) Marine transfer assembly
US20140174854A1 (en) Platform assembly mobile within a cylindrical structure
US8757954B1 (en) Maritime transfer system
GB2145980A (en) A rescue device for use with a helicopter
US4414911A (en) Berth for mooring supply ship to an offshore platform and for transferring personnel between them
US1892125A (en) Seadrome
US4427319A (en) Lifting equipment for an offshore construction
US2841246A (en) Ship&#39;s overside elevator
US3183998A (en) Apparatus for picking up and lowering a pilot at sea
KR101716331B1 (ko) 승하선 사다리 장치
US4054103A (en) Techniques for safely unloading externally-slung helicopter loads
US4279565A (en) Hoisting apparatus for pleasure boats
US3675610A (en) Mooring structure in combination with a fender
US2873581A (en) Marine platform
US2991489A (en) Life saving device
US4227830A (en) Ancillary off-shore column located near a sea-bed working column or platform