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GB1251571A - - Google Patents

Info

Publication number
GB1251571A
GB1251571A GB1251571DA GB1251571A GB 1251571 A GB1251571 A GB 1251571A GB 1251571D A GB1251571D A GB 1251571DA GB 1251571 A GB1251571 A GB 1251571A
Authority
GB
United Kingdom
Prior art keywords
protrusions
members
claws
cylinders
locking
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
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 filed Critical
Publication of GB1251571A publication Critical patent/GB1251571A/en
Expired legal-status Critical Current

Links

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
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0809—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering the equipment being hydraulically actuated
    • 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
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
    • 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
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
    • E02B17/0872—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks with locking pins engaging holes or cam surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

1,251,571. Lifting jacks. MITSUBISHI JUKOGYO K.K. 27 Aug., 1969, No. 42647/69. Heading B8J. A structure 1, such as a floating barge, is provided with a plurality of vertical bores 2 each accommodating an elongated member 4, such as a spud, with a number of rows of protrusions 5 arranged to pass through guide channels 3 preventing rotation of the member 4 relative to the structure 1. Upper and lower rigid members 7, 8 surround the member 4 and are interconnected by hydraulic cylinders 10. Connecting rods 9 secure the upper rigid member 7 to the structure 1. Both members 7, 8 have clawed rotary members 11 each with a pair of claws 15 arranged to be rotated by hydraulic cylinders 12 from a locking position, Fig. 5, between two protrusions 5 and a position allowing relative movement between the member 7 or 8 and the member 4, Fig. 6. The engaging faces of the claws 15 and the protrusions 5 are plane, the claws 15 having sufficient rotary freedom to ensure full-face engagement with the protrusions 5 when in the locking position. By appropriate locking and unlocking of the various rotary locking members 11 by the cylinders 12 and extension and retraction of the cylinders 10 the structure 1 may be lifted or lowered with respect to the member 4 or vice versa.
GB1251571D 1969-08-27 1969-08-27 Expired GB1251571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4264769 1969-08-27

Publications (1)

Publication Number Publication Date
GB1251571A true GB1251571A (en) 1971-10-27

Family

ID=10425355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251571D Expired GB1251571A (en) 1969-08-27 1969-08-27

Country Status (2)

Country Link
GB (1) GB1251571A (en)
MY (1) MY7300034A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001181A1 (en) * 1978-12-06 1980-06-12 Durand Engrenages Elevator device for a sea platform
GB2178373A (en) * 1985-07-30 1987-02-11 Rsv Gusto Eng Bv Supporting leg for an artificial island
FR2679215A1 (en) * 1991-07-15 1993-01-22 Costard Marcel System for lifting a heavy load
FR2679214A1 (en) * 1991-07-15 1993-01-22 Costard Marcel System designed for raising heavy loads
WO2011059343A1 (en) * 2009-11-13 2011-05-19 Aker Mh As Jack - up platform and method of using the platform

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001181A1 (en) * 1978-12-06 1980-06-12 Durand Engrenages Elevator device for a sea platform
GB2178373A (en) * 1985-07-30 1987-02-11 Rsv Gusto Eng Bv Supporting leg for an artificial island
FR2679215A1 (en) * 1991-07-15 1993-01-22 Costard Marcel System for lifting a heavy load
FR2679214A1 (en) * 1991-07-15 1993-01-22 Costard Marcel System designed for raising heavy loads
WO2011059343A1 (en) * 2009-11-13 2011-05-19 Aker Mh As Jack - up platform and method of using the platform

Also Published As

Publication number Publication date
MY7300034A (en) 1973-12-31

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee