GB1319238A - Internal line-up clamps for pipelines - Google Patents

Internal line-up clamps for pipelines

Info

Publication number
GB1319238A
GB1319238A GB1319238DA GB1319238A GB 1319238 A GB1319238 A GB 1319238A GB 1319238D A GB1319238D A GB 1319238DA GB 1319238 A GB1319238 A GB 1319238A
Authority
GB
United Kingdom
Prior art keywords
pipe
clamp
disc
pivot
expansion arm
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
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.)
LONG CO Ltd A
Original Assignee
LONG CO Ltd A
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 LONG CO Ltd A filed Critical LONG CO Ltd A
Publication of GB1319238A publication Critical patent/GB1319238A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

1319238 Clamps A LONG & CO Ltd 9 Dec 1970 [22 Sept 1969 18 May 1970] 46564/ 69 and 23871/70 Heading E2B [Also in Division B3] An internal line up clamp for aligning pipe sections 12, 14 prior to welding includes levers 36 formed with clamping members 38, 39 which engage respectively the pipes 12, 14 to be joined and one moved under the influence of a single expansion mechanism. As shown a hydraulic cylinder 18 has an annular piston (not shown) attached to disc 20 pivotally connected link 44. The opposite end of link 44, which is bifurcated, is connected by a pivot pin 34 to an expansion arm 30 and the lever 36. In operation the clamp is pulled by means of rod 46 to the end of pipe 12 which is already welded to the previous pipe length and the next pipe length 14 placed around the rod 46 as shown. Fluid pressure is supplied through lines 50, 49 to the cylinder 18 which moves disc 20 against the action of spring 48. Expansion arm 30 then begins to rotate about pivot 35 and clamping member 38 then contacts the pipe 12. Further movement of disc 20 causes clamping member 39 to pivot about the point of contact of member 38 with the pipe 12 against the action of spring 42 until member 39 contacts pipe 14. Further pressure may be applied to firmly locate the clamp. For the sake of clarity the drawing only shows one expansion arm 30 and its associated parts whereas the device has several such arms 30 circumferentially located about the pipe's axis. Each lever 36 may have one or more contact points with the pipe walls and rollers may be fitted at these points to facilitate engaging movement of the clamp.
GB1319238D 1969-09-22 1969-09-22 Internal line-up clamps for pipelines Expired GB1319238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4656469 1969-09-22

Publications (1)

Publication Number Publication Date
GB1319238A true GB1319238A (en) 1973-06-06

Family

ID=10441739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1319238D Expired GB1319238A (en) 1969-09-22 1969-09-22 Internal line-up clamps for pipelines

Country Status (1)

Country Link
GB (1) GB1319238A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511279A1 (en) * 1981-08-13 1983-02-18 Inst Elektroswarki Patona SOLDERING MACHINE FOR END-TO-END PIPES
GB2156468A (en) * 1984-03-31 1985-10-09 Okamoto Kogyo Kk Internally clamping pipes
CN113857741A (en) * 2021-12-01 2021-12-31 徐州航天美利达自动焊接设备有限公司 Automatic welding robot for curved-surface tube plates
CN117450143A (en) * 2023-12-26 2024-01-26 华海通信技术有限公司 Tensioning structure of inner unit of cylinder and inner unit of cylinder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511279A1 (en) * 1981-08-13 1983-02-18 Inst Elektroswarki Patona SOLDERING MACHINE FOR END-TO-END PIPES
GB2156468A (en) * 1984-03-31 1985-10-09 Okamoto Kogyo Kk Internally clamping pipes
CN113857741A (en) * 2021-12-01 2021-12-31 徐州航天美利达自动焊接设备有限公司 Automatic welding robot for curved-surface tube plates
CN113857741B (en) * 2021-12-01 2022-02-11 徐州航天美利达自动焊接设备有限公司 Automatic welding robot for curved-surface tube plates
CN117450143A (en) * 2023-12-26 2024-01-26 华海通信技术有限公司 Tensioning structure of inner unit of cylinder and inner unit of cylinder
CN117450143B (en) * 2023-12-26 2024-03-05 华海通信技术有限公司 Tensioning structure of inner unit of cylinder and inner unit of cylinder

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee