GB1211770A - A device for restoring the circular cross-section of pipes and/or to reinforce pipes - Google Patents

A device for restoring the circular cross-section of pipes and/or to reinforce pipes

Info

Publication number
GB1211770A
GB1211770A GB6183168A GB6183168A GB1211770A GB 1211770 A GB1211770 A GB 1211770A GB 6183168 A GB6183168 A GB 6183168A GB 6183168 A GB6183168 A GB 6183168A GB 1211770 A GB1211770 A GB 1211770A
Authority
GB
United Kingdom
Prior art keywords
segments
pipe
pipes
reinforce
section
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
GB6183168A
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of GB1211770A publication Critical patent/GB1211770A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/30—Finishing tubes, e.g. sizing, burnishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06—Removing local distortions
    • B21D1/08—Removing local distortions of hollow bodies made from sheet metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/16—Straightening or flattening
    • B29C53/20—Straightening or flattening of tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

1,211,770. Tube expanders. GEWERK-SCHAFT EISENHUTTE WESTFALIA. 31 Dec., 1968 [10 June, 1968], No. 61831/68. Headings B3J and B3Q. [Also in Division F2] A device, which is insertable in a pipe 1 to restore its circular cross-section and/or to reinforce the pipe comprises at least three segments 2-7 which are pivoted together at 5, 6 so as to be collapsible and also formable into an open circular ring and a locking arrangement which, when the device is positioned within the pipe, locks the free ends of the segments 3, 4 together to constrain the device into circular ring shape. The adjacent ends of the segments 3, 4 are apertured to receive the offset journal portions of an eccentric locking pin 12-15 which, when rotated through 90 degrees by a ram 16, locks the device securely within the pipe, an aperture 17 in a locking pin arm 17 coinciding with an aperture in the segment 3 to receive a holding pin, (not shown). Alternative locking arrangements include a curved wedge (29), Fig. 5, (not shown), driven into engagement with the two ends of the segments (3, 4) by a ram (16); or a scissor, or togglelike, device disposed between the ends of the segments 3, 4.
GB6183168A 1968-06-10 1968-12-31 A device for restoring the circular cross-section of pipes and/or to reinforce pipes Expired GB1211770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681752527 DE1752527A1 (en) 1968-06-10 1968-06-10 Clamping device to restore the circular cross-section of pipes or to stiffen pipes

Publications (1)

Publication Number Publication Date
GB1211770A true GB1211770A (en) 1970-11-11

Family

ID=5692832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6183168A Expired GB1211770A (en) 1968-06-10 1968-12-31 A device for restoring the circular cross-section of pipes and/or to reinforce pipes

Country Status (3)

Country Link
DE (1) DE1752527A1 (en)
FR (1) FR1595191A (en)
GB (1) GB1211770A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101653897B (en) * 2009-08-26 2011-09-07 重庆斯沃德光电设备设计制造有限公司 Large-scale pipeline jig
CN106626398A (en) * 2016-12-17 2017-05-10 国网湖北省电力公司宜昌供电公司 Welding and circle-supporting device for power transmission cable pipeline, and operating method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104625532A (en) * 2014-12-15 2015-05-20 中国重汽集团柳州运力专用汽车有限公司 Rapid sizing and connecting device for can-type semitrailer can body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101653897B (en) * 2009-08-26 2011-09-07 重庆斯沃德光电设备设计制造有限公司 Large-scale pipeline jig
CN106626398A (en) * 2016-12-17 2017-05-10 国网湖北省电力公司宜昌供电公司 Welding and circle-supporting device for power transmission cable pipeline, and operating method

Also Published As

Publication number Publication date
DE1752527A1 (en) 1971-06-03
FR1595191A (en) 1970-06-08

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Legal Events

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