GB1470077A - Apparatus for raising and lowering a load - Google Patents

Apparatus for raising and lowering a load

Info

Publication number
GB1470077A
GB1470077A GB2458074A GB2458074A GB1470077A GB 1470077 A GB1470077 A GB 1470077A GB 2458074 A GB2458074 A GB 2458074A GB 2458074 A GB2458074 A GB 2458074A GB 1470077 A GB1470077 A GB 1470077A
Authority
GB
United Kingdom
Prior art keywords
load
lowering
raising
column
outer ring
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
GB2458074A
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Publication of GB1470077A publication Critical patent/GB1470077A/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
    • E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
    • E02B17/0854—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks with clamping wedges, eccentric clamping devices and so on

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Actuator (AREA)
  • Earth Drilling (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

1470077 Step-by-step Jacks MITSUI SHIPBUILDING & ENG CO Ltd 31 May 1974 [1 June 1973] 24580/74 Heading B8J Apparatus for raising and lowering a load I along a vertical column II includes a guide rail III disposed vertically along the periphery of the column II, an upper outer ring 1 vertically spaced from the lower outer ring 2, both surrounding the column II and provided with downwardly diverging inclined surfaces arranged to co-operate with respective wedges 3, 4 under the action of fluid-pressure cylinders 9, 10. Main raising and lowering fluid-pressure cylinders 17 act between the upper and lower rings 1, 2 in sequence with the cylinders 9, 10 to raise and lower the load I, suspended from the upper ring 1 by coupling bars 18, in step-by-step manner.
GB2458074A 1973-06-01 1974-05-31 Apparatus for raising and lowering a load Expired GB1470077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6234973A JPS5627645B2 (en) 1973-06-01 1973-06-01

Publications (1)

Publication Number Publication Date
GB1470077A true GB1470077A (en) 1977-04-14

Family

ID=13197544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2458074A Expired GB1470077A (en) 1973-06-01 1974-05-31 Apparatus for raising and lowering a load

Country Status (9)

Country Link
JP (1) JPS5627645B2 (en)
DE (1) DE2426539A1 (en)
DK (1) DK292474A (en)
FR (1) FR2231612B1 (en)
GB (1) GB1470077A (en)
IT (1) IT1014654B (en)
NL (1) NL7407372A (en)
NO (1) NO138370C (en)
SE (1) SE396358B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160278A (en) * 1984-06-12 1985-12-18 Vickers Plc Adjusting axial length of a marine platform tether line

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483111A (en) * 1977-12-16 1979-07-03 Sanfuremu Akiyumu Kk Pressure vessel assembling method
US4277051A (en) * 1978-04-24 1981-07-07 Marine Engineering Company, C. A. Tilt-up/jack-up off-shore drilling apparatus and method
US4405115A (en) * 1981-02-20 1983-09-20 Varco International, Inc. Gripping jack system
DE3765299D1 (en) * 1986-03-28 1990-11-08 Riva Calzoni Spa GRIP AND LIFTING PLIERS FOR TUBES AND CYLINDRICAL ITEMS WITH LARGE DIMENSIONS.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245658A (en) * 1965-04-12 1966-04-12 John R Sutton Offshore platform elevating equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160278A (en) * 1984-06-12 1985-12-18 Vickers Plc Adjusting axial length of a marine platform tether line

Also Published As

Publication number Publication date
NO138370B (en) 1978-05-16
DE2426539A1 (en) 1974-12-12
NO138370C (en) 1978-08-23
SE7407099L (en) 1974-12-02
NO741973L (en) 1974-12-03
DK292474A (en) 1975-01-20
JPS508251A (en) 1975-01-28
FR2231612B1 (en) 1977-10-07
SE396358B (en) 1977-09-19
NL7407372A (en) 1974-12-03
FR2231612A1 (en) 1974-12-27
JPS5627645B2 (en) 1981-06-26
AU6956974A (en) 1975-12-04
IT1014654B (en) 1977-04-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee