GB760646A - Improved perforated caisson jack assembly - Google Patents
Improved perforated caisson jack assemblyInfo
- Publication number
- GB760646A GB760646A GB25229/54A GB2522954A GB760646A GB 760646 A GB760646 A GB 760646A GB 25229/54 A GB25229/54 A GB 25229/54A GB 2522954 A GB2522954 A GB 2522954A GB 760646 A GB760646 A GB 760646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caisson
- platform
- ring
- rings
- locked
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/30—Constructional features with positive brakes or locks
-
- 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)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
760,646. Caissons. DE LONG CORPORATION. Aug. 31, 1954 [Sept. 2, 1953], No. 25229/54. Class 68 (2). Apparatus for raising or lowering a tubular caisson 14 relatively to a platform 11 (e.g. the deck of a drilling barge), or the platform relatively to the caisson, comprises two rings 15, 16 vertically spaced apart and encircling the caisson which passes through an aperture 13 in the platform. Nuts on the lower ends of rods 34 engage the under face of the platform, the rods passing through apertures in the platform and rings, and the heads 35 of the rods are normally engaged by the upper face of the ring 15, whilst nuts 38 may be moved into and out of contact with the upper face of the ring 16 according to requirements. Fluid-pressure-operated jacks 26 and other piston-and-cylinder mechanisms 41 are positioned between the rings which are alternately locked to and released from the caisson, one being locked and the other unlocked. Locking is effected by fluid-pressure-operated bolts projected radially from the rings into engagement with apertures 21 in the caisson. For example if ring 16 is locked, operation of the jacks 26 raises ring 15 which is then locked, ring 16 unlocked and raised by the mechanism 41, and the cycle repeated as often as necessary.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US760646XA | 1953-09-02 | 1953-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB760646A true GB760646A (en) | 1956-11-07 |
Family
ID=22129718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25229/54A Expired GB760646A (en) | 1953-09-02 | 1954-08-31 | Improved perforated caisson jack assembly |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB760646A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2954676A (en) * | 1957-05-13 | 1960-10-04 | Jersey Prod Res Co | Lifting assembly for structures |
| US4083191A (en) * | 1977-01-14 | 1978-04-11 | Donnelly Emmett F | Pier for foundation leveling |
| WO2000076844A1 (en) * | 1999-06-10 | 2000-12-21 | Zf Luftfahrttechnik Gmbh | Device for simultaneously interlocking a plurality of actuators |
-
1954
- 1954-08-31 GB GB25229/54A patent/GB760646A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2954676A (en) * | 1957-05-13 | 1960-10-04 | Jersey Prod Res Co | Lifting assembly for structures |
| US4083191A (en) * | 1977-01-14 | 1978-04-11 | Donnelly Emmett F | Pier for foundation leveling |
| WO2000076844A1 (en) * | 1999-06-10 | 2000-12-21 | Zf Luftfahrttechnik Gmbh | Device for simultaneously interlocking a plurality of actuators |
| US6676377B1 (en) | 1999-06-10 | 2004-01-13 | Zf Luftfahrttechnik Gmbh | Device for simultaneously interlocking a plurality of actuators |
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