GB1242395A - Improved clamping device - Google Patents

Improved clamping device

Info

Publication number
GB1242395A
GB1242395A GB4027167A GB4027167A GB1242395A GB 1242395 A GB1242395 A GB 1242395A GB 4027167 A GB4027167 A GB 4027167A GB 4027167 A GB4027167 A GB 4027167A GB 1242395 A GB1242395 A GB 1242395A
Authority
GB
United Kingdom
Prior art keywords
load transmitting
annular
members
openings
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
GB4027167A
Inventor
Joseph Edward Domagala
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.)
Cementation Co Ltd
Original Assignee
Cementation 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 Cementation Co Ltd filed Critical Cementation Co Ltd
Priority to GB4027167A priority Critical patent/GB1242395A/en
Publication of GB1242395A publication Critical patent/GB1242395A/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
    • F16B4/00—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
    • F16B4/002—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings engaging or disengaging by means of fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/12—Rope clamps ; Rod, casings or tube clamps not secured to elevators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

1,242,395. Releasable fastenings; boring earth etc. CEMENTATION CO., Ltd 19 Aug., 1968 [4 Sept., 1967], No. 40271/67. Headings E1F and E2A. A clamping device comprises a ring-like structure carrying, in a plurality of openings at respective spaced apart positions therearound, respective load transmitting members 9 each of which is arranged for sliding movement in one of said openings in opposite directions i.e. towards and away from the structure axis, the member being substantially immovable relative to structure in all other directions, the load transmitting members backing onto flexible means contained within the structure and to which pressure fluid can be supplied to distend the flexible means and thereby cause sliding movement of each load transmitting member in one of said opposite directions whereby in use each load transmitting member can be brought into clamping engagement with a driven member 5a. In the construction shown where the device forms part of a vibrating machine for driving the driven member into the ground or for extracting it from the ground, the ring like structure consists of an annular member 1, a second annular member 2 of greater diameter and plates 4 and 5 which with the members 1 and 2 define an annular cavity 3 in which the flexible member is contained. The openings for the load transmitting members 9 are in the member 1, the driven member 5a being inside the member 1. The flexible means consists of an inner tube 6 and an outer protective cover 7, fluid being supplied to the inner tube via a connection 8. The members 9 include plates 12 which are arranged to present a substantially continuous surface to the outer cover 7 of the flexible member. Instead of the ring-like structure being annular as shown it can have a non- annular configuration. Instead of there being a common cover 7 and tubes 6, each load transmitting member can have its own cover and tube, alternatively there can be a plurality of annular covers and tubes therefore either concentrically or coaxially arranged.
GB4027167A 1967-09-04 1967-09-04 Improved clamping device Expired GB1242395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4027167A GB1242395A (en) 1967-09-04 1967-09-04 Improved clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4027167A GB1242395A (en) 1967-09-04 1967-09-04 Improved clamping device

Publications (1)

Publication Number Publication Date
GB1242395A true GB1242395A (en) 1971-08-11

Family

ID=10414056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4027167A Expired GB1242395A (en) 1967-09-04 1967-09-04 Improved clamping device

Country Status (1)

Country Link
GB (1) GB1242395A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340122A1 (en) * 1988-04-27 1989-11-02 Agenstub S.A. Quick connecting device for connecting elements of structures, scaffolds, supports and other assemblies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340122A1 (en) * 1988-04-27 1989-11-02 Agenstub S.A. Quick connecting device for connecting elements of structures, scaffolds, supports and other assemblies
FR2630789A1 (en) * 1988-04-27 1989-11-03 Charondiere Georges DEVICE FOR QUICKLY ASSEMBLING CONNECTING ELEMENTS FOR STRUCTURES, STRUCTURES, SUPPORTS, AND OTHER ASSEMBLIES

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