GB1379643A - Chuckds for climbing jacks - Google Patents

Chuckds for climbing jacks

Info

Publication number
GB1379643A
GB1379643A GB3049172A GB3049172A GB1379643A GB 1379643 A GB1379643 A GB 1379643A GB 3049172 A GB3049172 A GB 3049172A GB 3049172 A GB3049172 A GB 3049172A GB 1379643 A GB1379643 A GB 1379643A
Authority
GB
United Kingdom
Prior art keywords
rollers
climbing
housing
chuckds
radius
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
GB3049172A
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.)
Brooker Pty Ltd N F
Original Assignee
Brooker Pty Ltd N F
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 Brooker Pty Ltd N F filed Critical Brooker Pty Ltd N F
Publication of GB1379643A publication Critical patent/GB1379643A/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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/14—Telescoping systems locking in intermediate non-discrete positions
    • F16B7/1409—Telescoping systems locking in intermediate non-discrete positions with balls or rollers urged by an axial displacement of a wedge or a conical member
    • 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
    • B66F1/00—Devices, e.g. jacks, for lifting loads in predetermined steps
    • B66F1/02—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts
    • B66F1/025—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the devices being operated by fluid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Clamps And Clips (AREA)

Abstract

1379643 Climbing jack clamps N F BROOKER PTY Ltd 29 June 1972 [30 Sept 1971] 30491/72 Heading B8J [Also in Division E2] A clamp for a fluid pressure operated climbing jack comprises a plurality of rollers 3 adapted to wedge between a climbing rod (Fig. 2, not shown) and the tapered inner wall (2) of a housing 1. The rollers 3 are a free sliding fit in castellations 4 of a roller holder 5 and the axial section of the curved surface of each roller 3 is an arc of a circle with a radius corresponding to the radius of the housing 1 where the rollers 3 contact. Studs 11 are provided to indicate the amount of piston displacement as described in Specification 1,216,650.
GB3049172A 1971-09-30 1972-06-29 Chuckds for climbing jacks Expired GB1379643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPA648371 1971-09-30

Publications (1)

Publication Number Publication Date
GB1379643A true GB1379643A (en) 1975-01-08

Family

ID=3764830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3049172A Expired GB1379643A (en) 1971-09-30 1972-06-29 Chuckds for climbing jacks

Country Status (2)

Country Link
JP (1) JPS5540515B2 (en)
GB (1) GB1379643A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254233A2 (en) * 1986-07-21 1988-01-27 Mueller, Warren A. Quick release collar
GB2335181A (en) * 1998-03-13 1999-09-15 Resource Marginal Systems Ltd Travelling jacking arrangement for offshore platform
EP2381117A3 (en) * 2010-04-09 2013-06-05 Ming Ren Hang Co. Ltd. Lifting-adjusting assembly for a shaft

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345797B2 (en) * 1974-06-08 1978-12-08

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254233A2 (en) * 1986-07-21 1988-01-27 Mueller, Warren A. Quick release collar
EP0254233A3 (en) * 1986-07-21 1989-02-01 Specialized Mechanisms Incorporated Quick release collar
GB2335181A (en) * 1998-03-13 1999-09-15 Resource Marginal Systems Ltd Travelling jacking arrangement for offshore platform
EP2381117A3 (en) * 2010-04-09 2013-06-05 Ming Ren Hang Co. Ltd. Lifting-adjusting assembly for a shaft

Also Published As

Publication number Publication date
JPS5540515B2 (en) 1980-10-18
JPS4842545A (en) 1973-06-20

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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