US3912228A - Integrated chain-wire rope mooring system - Google Patents

Integrated chain-wire rope mooring system Download PDF

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Publication number
US3912228A
US3912228A US475012A US47501274A US3912228A US 3912228 A US3912228 A US 3912228A US 475012 A US475012 A US 475012A US 47501274 A US47501274 A US 47501274A US 3912228 A US3912228 A US 3912228A
Authority
US
United States
Prior art keywords
chain
drum
wireline
wildcat
mooring
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
US475012A
Other languages
English (en)
Inventor
Terry Petty
Carmon R Costello
John L Bell
Mark A Childers
Gude P Rao
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.)
Ocean Drilling and Exploration Co
Original Assignee
Ocean Drilling and Exploration Co
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 Ocean Drilling and Exploration Co filed Critical Ocean Drilling and Exploration Co
Priority to US475012A priority Critical patent/US3912228A/en
Priority to GB21586/75A priority patent/GB1492227A/en
Priority to NO751819A priority patent/NO143419C/no
Priority to NLAANVRAGE7506397,A priority patent/NL169710C/xx
Priority to FI751571A priority patent/FI59368C/fi
Priority to DK240075AA priority patent/DK142405B/da
Priority to AU81724/75A priority patent/AU487406B2/en
Priority to IT49846/75A priority patent/IT1035907B/it
Priority to SE7506220A priority patent/SE406891B/xx
Priority to JP50064445A priority patent/JPS517692A/ja
Priority to DE2523961A priority patent/DE2523961C2/de
Priority to FR7517142A priority patent/FR2275355A1/fr
Application granted granted Critical
Publication of US3912228A publication Critical patent/US3912228A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/72—Anchor-chain sprockets; Anchor capstans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/22—Handling or lashing of anchors

Definitions

  • An integrated chain-wire rope mooring system is comprised of a mooring line consisting of a chain attached to an anchor at one end and permanently coupled to a wireline at the other end which is wrapped around a drum.
  • a Windlass wildcat is positioned preferably adjacent to the drum so that it can be driven and con- P. Rao, both of New La, all of La.
  • An integrated mooring system having a mooring line consisting of a chain and a wireline, permanently coupled to each other by a connector device.
  • the wireline is wound on a drum, preferably, though not necessarily, positioned adjacent to and at the same time elevation as a wildcat, so that both the drum and the wildcat can be powered and controlled together.
  • An interior sheave is positioned in the path of the mooring line between the drum and the wildcat. The sheave is preferably in or in the vicinity of the chain locker and sufficiently below the drum so as to continuously maintain contact with the wireline and maintain an acceptable fleet angle.
  • To pay outthe mooring line the drum remains stationary and the wildcat is rotated until the chain has been completely runout from its locker.
  • the chain or wire rope then forms a loop around the interior sheave, applying tension to the wireline which causes the drum to start to rotate with the wildcat to unwind the wireline.
  • thewildcat acts only as an 'unpowered fairlead sheave for the wire line, which is being paid out from the wireline drum passing around the lower or chain locker sheave, over the wildcat, and thence overboard.
  • the wireline can then follow the chains path over the components of the mooring system.
  • the mooring line is retrieved by rotating the drum in an opposite direction thereby winding the wireline on the drum until the connector device is pulled just past the lower sheave.
  • the drum is then stopped and only the wildcat is rotated to retrieve the chain which is allowed to pile up in the chain locker.
  • both the wireline winch and the Windlass wildcat are hauling in under power.
  • FIG. 1 illustrates the integrated chain-wire rope mooring system of this invention with the chain piled up in the chain locker and the leading end of the wireline and connector just past the outer periphery of the sheave; 5
  • FIG. 2 is similar to FIG. 1, showing the chain after it has been'completely taken'out from its locker, and the wireline drum has begun paying out so that the connector has passed over the lower sheave and over the windlass wildcat; and
  • FIG. 3 is similar to FIG. 2, but with the mooring line further advanced, the connector now being outboard of the outer fairlead.
  • the integrated mooring system 12 of this invention is conveniently mounted on a suitable support, such as a column or mooring tower 10.
  • System 12 uses a mooring line 14 which consists of a wireline 16, a chain 18, and a connector 20 for permanently connecting the wireline to the chain.
  • the connector can be of the type as manufactured by Pusnes or Skagit Corporations or others skilled in the design and'manufacture of mooring equipment.
  • Wireline 16 is wound on the cylindrical periphery of a spool or drum 22 which is rotatably mounted about a shaft 24.
  • Drum 22 is mounted at an elevated position relative to a chain locker 26 in which chain 18 is piled.
  • An anchor Windlass wildcat 28, preferably positioned adjacent to drum 22, is rotatably mounted about a shaft 30. Wildcat 28 is followed by a fairleader 32 rotatably mounted about a shaft 34 supported on an exterior bracket 35 extending from tower 10 below wildcat 28.
  • an interior fairleading device such as a sheave 36 is located in, on top of, or underneath locker 26 and is rotatably mounted about a shaft 38.
  • Sheave 36 has a circumferential periphery adapted to accept sequentially chain 18, connector 20, and rope 16 in either direction. It is essential to position sheave 36 sufficiently below drum 22 to allow proper fleet angles between the sheave and drum andat a distance from a vertical plane passing through shaft 24. Any other arrangement will be acceptable as long as the wireline continuously maintains contact with sheave 36 when all the chain is out of the locker.
  • interior sheave indicates an appropriately located sheave relative to the other components of the mooring system 12, including chain locker 26, drum 22, and wildcat 28.
  • the appropriate location for sheave 36 may include any position that enables the sheave to serve its intended function between wildcat 28 and drum 22.
  • wireline drum 22 and wildcat 28 are also desired to locate wireline drum 22 and wildcat 28 adjacent to one another so that they can be driven by a single drive unit 40 and controlled by a control-transmission unit 42, whereby shafts 24 and 30 can be driven simultaneously or independently.
  • the chain In the position of the mooring line 14 shown in H6. 3, the chain is completely submerged in' the body of water and the wireline extends from tower down to a desired depth.
  • the wireline forms a desired mooring angle 41 which is considerably smaller than a comparable angle that would have been formed if only chain were used in the mooring line. The smaller this mooring angle, the greater will be the horizontal component of the required restoring force imposed on the mooring system.
  • drum 22 and wildcat 28 are rotated counterclockwise until connector returns to the chain locker 26 and preferably past and above interior sheave 36 (FIG. 1). At that point, drum 22 is stopped and only wildcat 28 is allowed to continue to rotate until the chain piles up in chain locker 26 with only the leading end of the chain remaining past fairleader 32.
  • the integrated mooring system of the present invention is characterized by several advantages, chief among which are: there is no need to make and break the connection between wireline 16 and chain 18 each time that the mooring line 14 is paid out or hauled in.
  • the location of the interior sheave in the vicinity of the chain locker allows for an orderly transition from chain to wireline and vice versa.
  • the entire mooring line can be controlled by a single control-transmission unit.
  • An integrated mooring system for a floating structure comprising:
  • a mooring line including a wireline, a chain and a connector coupling the wireline to the chain;
  • a drum for winding and unwinding the wireline said drum being mounted on a mooring tower which defines a chain locker;
  • a wildcat mounted on said structure for paying-out and paying-in said mooring line from and into said chain locker;
  • said means being operable to stop the drum and continue rotation of said wildcat to effect storage of said chain in said locker during a pay-in of said mooring line.
  • a mooring line including a wireline, a chain and a connector coupling the wireline to the chain;
  • a wildcat mounted on said structure for paying-out and paying-in said mooring line from and into said chain locker;
  • power means adapted to rotate said drum and said wildcat simultaneously or sequentially, said means being operable to stop the drum and continue rotation of said wildcat to effect storage of said chain in said locker during a pay-in of said mooring line.
  • An integrated mooring system for mooring a structure floating on a body of water comprising:
  • a mooring line consisting of: a wireline, a chain, and
  • a drum rotatably mounted on said structure, a chain locker in said structure for housing said chain;
  • a wildcat mounted on said structure for paying-in and paying-out said mooring line;
  • said power means being operable to stop said drum after winding said wireline thereon and continue rotation of said wildcat to effect storage of said chain in said chain locker during a pay-in of said mooring line.
  • An integrated mooring system for mooring a structure floating on a body of water comprising:
  • a mooring line consisting of: a wireline, a chain, and
  • a drum rotatably mounted on said structure, a chain locker in said structure for housing said chain;
  • said power means being operable to stop said drum after winding said wireline thereon and continue rotation of said wildcat to effect storage of said chain in said chain locker during a pay-in of said mooring line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)
  • Transmission Devices (AREA)
  • Revetment (AREA)
  • Electric Cable Installation (AREA)
  • Piles And Underground Anchors (AREA)
  • Ropes Or Cables (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
US475012A 1974-05-31 1974-05-31 Integrated chain-wire rope mooring system Expired - Lifetime US3912228A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US475012A US3912228A (en) 1974-05-31 1974-05-31 Integrated chain-wire rope mooring system
GB21586/75A GB1492227A (en) 1974-05-31 1975-05-20 Mooring system for use in deep waters
NO751819A NO143419C (no) 1974-05-31 1975-05-22 Anordning for inn- og uthaling av fortoeyningskabel for en flytende konstruksjon
FI751571A FI59368C (fi) 1974-05-31 1975-05-29 Foerankringsanordning foer en pao vatten flytande konstruktion
DK240075AA DK142405B (da) 1974-05-31 1975-05-29 Fortøjningsanlæg.
NLAANVRAGE7506397,A NL169710C (nl) 1974-05-31 1975-05-29 Inrichting voor het neerlaten en ophalen van een scheepsanker.
AU81724/75A AU487406B2 (en) 1974-05-31 1975-05-30 Integrated mooring system for deep waters
IT49846/75A IT1035907B (it) 1974-05-31 1975-05-30 Apparecchio d ormeggio integrato
SE7506220A SE406891B (sv) 1974-05-31 1975-05-30 Forankringsanordning for flytande konstruktioner
JP50064445A JPS517692A (en) 1974-05-31 1975-05-30 Itsutainokusari waiyaaroopukeiryusochi
DE2523961A DE2523961C2 (de) 1974-05-31 1975-05-30 Ankereinrichtung zur Verankerung eines Schwimmkörpers in einem tiefen Gewässer
FR7517142A FR2275355A1 (fr) 1974-05-31 1975-06-02 Installation d'amarrage combinee pour grandes profondeurs marines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US475012A US3912228A (en) 1974-05-31 1974-05-31 Integrated chain-wire rope mooring system

Publications (1)

Publication Number Publication Date
US3912228A true US3912228A (en) 1975-10-14

Family

ID=23885886

Family Applications (1)

Application Number Title Priority Date Filing Date
US475012A Expired - Lifetime US3912228A (en) 1974-05-31 1974-05-31 Integrated chain-wire rope mooring system

Country Status (11)

Country Link
US (1) US3912228A (de)
JP (1) JPS517692A (de)
DE (1) DE2523961C2 (de)
DK (1) DK142405B (de)
FI (1) FI59368C (de)
FR (1) FR2275355A1 (de)
GB (1) GB1492227A (de)
IT (1) IT1035907B (de)
NL (1) NL169710C (de)
NO (1) NO143419C (de)
SE (1) SE406891B (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985093A (en) * 1975-04-30 1976-10-12 Armco Steel Corporation Chain-wire rope anchoring systems and anchoring systems and connectors therefor
US4023775A (en) * 1974-08-08 1977-05-17 Clarke Chapman Limited Apparatus for recovering rope and chain cable
US4078768A (en) * 1976-10-29 1978-03-14 A/S Pusnes Mekaniske Verksted Hauling-in a rope and chain line
US4111398A (en) * 1975-04-18 1978-09-05 Wharton Engineers (Elstree) Limited Haulage winches
US4411132A (en) * 1981-08-31 1983-10-25 The Crosby Group Wire rope to chain connector for anchoring systems
US4497471A (en) * 1982-08-03 1985-02-05 A/S Bergens Mekaniske Verksteder Assembly on a chain sheave/chain-rope system
US4722293A (en) * 1984-10-25 1988-02-02 John T. Hepburn, Limited Integrated winch and windlass
WO1998040306A1 (en) * 1997-03-14 1998-09-17 Bardex Engineering, Inc. Underwater self-aligning fairlead latch device for mooring a structure at sea
US20050109256A1 (en) * 2003-11-25 2005-05-26 Zaman Mohammad S. Semisubmersible vessels & mooring systems
GB2437506A (en) * 2006-04-25 2007-10-31 Peter Stephens Offset rotating hawser pipe for windlass anchor chain
US20120111255A1 (en) * 2009-01-26 2012-05-10 Saipem S.P.A. Traction Method And System For An Operating Line, In Particular A Mooring Line, Of A Floating Production Unit
CN102889964A (zh) * 2011-09-06 2013-01-23 大连华锐重工集团股份有限公司 用于单点系泊液滑环试验的牵引式往复机构
US8915205B2 (en) 2010-12-23 2014-12-23 Bardex Corporation Fairlead latch device
US10759628B2 (en) 2016-02-12 2020-09-01 Bardex Corporation Link coupler, chainwheel, and assembly thereof for coupling and moving chains of different sizes

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US896961A (en) * 1907-09-23 1908-08-25 Thomas Watkins Dumping-pan.
US2980355A (en) * 1958-03-24 1961-04-18 Int Computers & Tabulators Ltd Tape-feeding apparatus
US3191836A (en) * 1962-10-10 1965-06-29 Sperry Rand Corp Tape feeding apparatus
US3300187A (en) * 1963-11-07 1967-01-24 Pusnes Mek Verksted Semi-automatic warping and mooring arrangement
US3459406A (en) * 1967-09-25 1969-08-05 Harmonic Reed Corp Dome hoist
US3532324A (en) * 1968-05-23 1970-10-06 Paceco Inc Antisway mechanism
US3583354A (en) * 1969-04-23 1971-06-08 Don H Flickinger Anchoring system for fating drilling vessel
US3645519A (en) * 1969-07-31 1972-02-29 Voest Ag Rope or chain rupture safety device
US3717325A (en) * 1971-08-02 1973-02-20 American Chain & Cable Co Cable system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279404A (en) * 1963-12-20 1966-10-18 Offshore Co Floating mooring system
NO141604C (no) * 1970-01-23 1980-04-09 Bergens Mek Verksted Vinsjanordning med trekkvinsj og lagringsvinsj
US3799097A (en) * 1972-07-20 1974-03-26 Fluor Corp Vessel anchoring apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US896961A (en) * 1907-09-23 1908-08-25 Thomas Watkins Dumping-pan.
US2980355A (en) * 1958-03-24 1961-04-18 Int Computers & Tabulators Ltd Tape-feeding apparatus
US3191836A (en) * 1962-10-10 1965-06-29 Sperry Rand Corp Tape feeding apparatus
US3300187A (en) * 1963-11-07 1967-01-24 Pusnes Mek Verksted Semi-automatic warping and mooring arrangement
US3459406A (en) * 1967-09-25 1969-08-05 Harmonic Reed Corp Dome hoist
US3532324A (en) * 1968-05-23 1970-10-06 Paceco Inc Antisway mechanism
US3583354A (en) * 1969-04-23 1971-06-08 Don H Flickinger Anchoring system for fating drilling vessel
US3645519A (en) * 1969-07-31 1972-02-29 Voest Ag Rope or chain rupture safety device
US3717325A (en) * 1971-08-02 1973-02-20 American Chain & Cable Co Cable system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023775A (en) * 1974-08-08 1977-05-17 Clarke Chapman Limited Apparatus for recovering rope and chain cable
US4111398A (en) * 1975-04-18 1978-09-05 Wharton Engineers (Elstree) Limited Haulage winches
US3985093A (en) * 1975-04-30 1976-10-12 Armco Steel Corporation Chain-wire rope anchoring systems and anchoring systems and connectors therefor
US4078768A (en) * 1976-10-29 1978-03-14 A/S Pusnes Mekaniske Verksted Hauling-in a rope and chain line
US4411132A (en) * 1981-08-31 1983-10-25 The Crosby Group Wire rope to chain connector for anchoring systems
US4497471A (en) * 1982-08-03 1985-02-05 A/S Bergens Mekaniske Verksteder Assembly on a chain sheave/chain-rope system
US4722293A (en) * 1984-10-25 1988-02-02 John T. Hepburn, Limited Integrated winch and windlass
US5845893A (en) * 1997-03-14 1998-12-08 Bardex Engineering, Inc. Underwater self-aligning fairlead latch device for mooring a structure at sea
WO1998040306A1 (en) * 1997-03-14 1998-09-17 Bardex Engineering, Inc. Underwater self-aligning fairlead latch device for mooring a structure at sea
US20050109256A1 (en) * 2003-11-25 2005-05-26 Zaman Mohammad S. Semisubmersible vessels & mooring systems
GB2437506A (en) * 2006-04-25 2007-10-31 Peter Stephens Offset rotating hawser pipe for windlass anchor chain
US20120111255A1 (en) * 2009-01-26 2012-05-10 Saipem S.P.A. Traction Method And System For An Operating Line, In Particular A Mooring Line, Of A Floating Production Unit
US8800462B2 (en) * 2009-01-26 2014-08-12 Saipem S.P.A. Traction method and system for an operating line, in particular a mooring line, of a floating production unit
US8915205B2 (en) 2010-12-23 2014-12-23 Bardex Corporation Fairlead latch device
US9126659B2 (en) 2010-12-23 2015-09-08 Bardex Corporation Fairlead latch device
CN102889964A (zh) * 2011-09-06 2013-01-23 大连华锐重工集团股份有限公司 用于单点系泊液滑环试验的牵引式往复机构
CN102889964B (zh) * 2011-09-06 2015-03-25 大连华锐重工集团股份有限公司 用于单点系泊液滑环试验的牵引式往复机构
US10759628B2 (en) 2016-02-12 2020-09-01 Bardex Corporation Link coupler, chainwheel, and assembly thereof for coupling and moving chains of different sizes

Also Published As

Publication number Publication date
GB1492227A (en) 1977-11-16
DE2523961A1 (de) 1976-04-22
NO143419B (no) 1980-11-03
NL169710B (nl) 1982-03-16
DK142405B (da) 1980-10-27
JPS5712717B2 (de) 1982-03-12
DE2523961C2 (de) 1983-05-11
SE7506220L (sv) 1975-12-01
AU8172475A (en) 1976-12-02
FI751571A (de) 1975-12-01
NL7506397A (nl) 1975-12-02
NO143419C (no) 1981-02-11
DK240075A (de) 1975-12-01
SE406891B (sv) 1979-03-05
DK142405C (de) 1981-03-23
FR2275355B1 (de) 1978-10-13
NL169710C (nl) 1982-08-16
NO751819L (de) 1975-12-02
FR2275355A1 (fr) 1976-01-16
IT1035907B (it) 1979-10-20
FI59368B (fi) 1981-04-30
FI59368C (fi) 1981-08-10
JPS517692A (en) 1976-01-22

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