GB1491359A - Buoys - Google Patents

Buoys

Info

Publication number
GB1491359A
GB1491359A GB2838675A GB2838675A GB1491359A GB 1491359 A GB1491359 A GB 1491359A GB 2838675 A GB2838675 A GB 2838675A GB 2838675 A GB2838675 A GB 2838675A GB 1491359 A GB1491359 A GB 1491359A
Authority
GB
United Kingdom
Prior art keywords
gas
buoy
pipe
valve
jaws
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
Application number
GB2838675A
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.)
BVS SA
Original Assignee
BVS SA
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 BVS SA filed Critical BVS SA
Publication of GB1491359A publication Critical patent/GB1491359A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/12—Laying or reclaiming pipes on or under water
    • F16L1/20—Accessories therefor, e.g. floats, weights
    • F16L1/24—Floats; Weights

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

1491359 Ballasting BVS 4 July 1975 [26 July 1974] 28386/75 Heading B7A A constant-lift buoy, Fig. 2, for supporting a load in water, comprises a rigid shell 1 open at the bottom 10 which has means 52, 53, 54, for maintaining a constant volume of gas inside the shell, means 61, 62, 63, 64, for permitting the escape of gas to reduce the lift, and load engaging hooks 3. In use, the buoy is supplied with gas from a pipe-laying barge through a pipe 5, control valve 55 and a reducing valve 51. The float 54 opens and closes the valve 53 to maintain a constant volume of gas in the buoy. Gas pressure in a jack 64 holds the valve 61 on seat 62 to prevent the escape of gas. The weight of a bell housing 33 holds the jaws 3 closed through toggle mechanism 31. When a pipe 4 reaches the bottom, pressure in pipe 5 is reduced from the barge. This causes the release of a coupling 56. Valve 61 is now no longer held on its seat by jack 64 so air escapes through the pipe 6. As water rises inside the buoy the bell housing 33, which is full of gas, rises and opens the jaws 3. The speed of ascent of the buoy is reduced because only gas above the level of the pipe 6 is retained. Gas for the buoy may be generated on the buoy itself.
GB2838675A 1974-07-26 1975-07-04 Buoys Expired GB1491359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7426067A FR2284512A1 (en) 1974-07-26 1974-07-26 CONSTANT LIFT BUOY

Publications (1)

Publication Number Publication Date
GB1491359A true GB1491359A (en) 1977-11-09

Family

ID=9141773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2838675A Expired GB1491359A (en) 1974-07-26 1975-07-04 Buoys

Country Status (3)

Country Link
FR (1) FR2284512A1 (en)
GB (1) GB1491359A (en)
NL (1) NL7507179A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222190A (en) * 1988-07-01 1990-02-28 Norwegian Contractors Installing large, heavy structures on the sea bottom
WO2001036266A1 (en) * 1999-11-19 2001-05-25 Giuseppe Zingale Device for transporting loads under water and usable as a lifting pontoon
JP2018507132A (en) * 2015-02-24 2018-03-15 トレルボルグ・インダストリー・エスエーエスＴｒｅｌｌｅｂｏｒｇ Ｉｎｄｕｓｔｒｉｅ ＳＡＳ Adjustable buoyancy clamp for hose
WO2019122801A1 (en) * 2017-12-22 2019-06-27 Ge Oil & Gas Uk Ltd Buoyancy compensating assembly and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121529A (en) * 1976-09-20 1978-10-24 B & B Insulation, Inc. Buoyancy systems
FR2461181B1 (en) * 1979-07-06 1985-10-04 Serra Freres Entr Sa ROLLING FLOAT DEVICE FOR SUBSEA PIPES
NL9400517A (en) * 1994-03-31 1995-11-01 Allseas Eng Bv Method and device for laying a pipeline on an underwater ground.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222190A (en) * 1988-07-01 1990-02-28 Norwegian Contractors Installing large, heavy structures on the sea bottom
GB2222190B (en) * 1988-07-01 1992-07-22 Norwegian Contractors The transportation and installation of large, heavy structures on the sea bottom.
WO2001036266A1 (en) * 1999-11-19 2001-05-25 Giuseppe Zingale Device for transporting loads under water and usable as a lifting pontoon
US6575105B1 (en) 1999-11-19 2003-06-10 Giuseppe Zingale Device for transporting loads under water and usable as a lifting pontoon
JP2018507132A (en) * 2015-02-24 2018-03-15 トレルボルグ・インダストリー・エスエーエスＴｒｅｌｌｅｂｏｒｇ Ｉｎｄｕｓｔｒｉｅ ＳＡＳ Adjustable buoyancy clamp for hose
JP2021073136A (en) * 2015-02-24 2021-05-13 トレルボルグ クレルモン−フェラン エスエーエス Adjustable buoyancy clamp for hose
WO2019122801A1 (en) * 2017-12-22 2019-06-27 Ge Oil & Gas Uk Ltd Buoyancy compensating assembly and method

Also Published As

Publication number Publication date
NL7507179A (en) 1976-01-28
FR2284512B1 (en) 1977-03-25
FR2284512A1 (en) 1976-04-09

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee