GB1404467A - Means for blanking-off the interior of hollow members - Google Patents

Means for blanking-off the interior of hollow members

Info

Publication number
GB1404467A
GB1404467A GB3772972A GB3772972A GB1404467A GB 1404467 A GB1404467 A GB 1404467A GB 3772972 A GB3772972 A GB 3772972A GB 3772972 A GB3772972 A GB 3772972A GB 1404467 A GB1404467 A GB 1404467A
Authority
GB
United Kingdom
Prior art keywords
bung
gas
passage
pipes
tandem
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
GB3772972A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3772972A priority Critical patent/GB1404467A/en
Publication of GB1404467A publication Critical patent/GB1404467A/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
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/162—Arc welding or cutting making use of shielding gas making use of a stationary fluid
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
    • B23K9/0282—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • B23K9/325—Devices for supplying or evacuating shielding gas
    • B23K9/326—Purge gas rings, i.e. devices for supplying or evacuating shielding gas inside of hollow or tubular articles, e.g. pipes, vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

1404467 Welding by fusion J ASHCROFT 5 Nov 1973 [12 Aug 1972] 37729/72 Heading B3R A backing gas chamber within pipes to be gas-shielded are welded end-to-end is defined by two sealing bungs each comprising an inflatable member 4, of rubber or resilient plastics, supported on an impervious member 2 preferably of metal (e.g. pressed steel) or rigid non-metal (e.g. plastics). Each bung has a passage 5 therethrough, that in one bung being connected to a source, such as 9, of inert gas e.g. argon) and that in the other bung providing for exhaust. The exhaust passage may be open, for continuous gas flushing, or provided with a valve, preferably spring-loaded and one-way to determine pressure level in the backing gas chamber. The exhaust passage may also have disposed therein an audible device signalling gas presence. One bung may have an inspection window. The bungs are coupled in tandem, by a means 10, and secured to a pusher rod 11 which may be supported in a cruciform member fitted in a pipe end. A roller arrangement 12 provides for tandem passage through the pipes. Each member 4 may be inflated by a simple foot pump or by compressed air. The means 10 may be rigid for straight pipe connections or flexible, e.g. a coil spring, for angular pipe connections.
GB3772972A 1972-08-12 1972-08-12 Means for blanking-off the interior of hollow members Expired GB1404467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3772972A GB1404467A (en) 1972-08-12 1972-08-12 Means for blanking-off the interior of hollow members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3772972A GB1404467A (en) 1972-08-12 1972-08-12 Means for blanking-off the interior of hollow members

Publications (1)

Publication Number Publication Date
GB1404467A true GB1404467A (en) 1975-08-28

Family

ID=10398622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3772972A Expired GB1404467A (en) 1972-08-12 1972-08-12 Means for blanking-off the interior of hollow members

Country Status (1)

Country Link
GB (1) GB1404467A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2752526A1 (en) * 1976-11-24 1978-06-01 Hallenbeck Emerson CLEANING DEVICE FOR WELDING SITES
US4101067A (en) * 1976-07-23 1978-07-18 Sloan Purge Products Co., Inc. Heat sink welding and purging apparatus
US4413655A (en) * 1981-04-14 1983-11-08 Brown George T Pipe repair bypass system
GB2119687A (en) * 1982-04-28 1983-11-23 British Nuclear Fuels Ltd Method of and apparatus for orbital welding
GB2201623A (en) * 1987-02-25 1988-09-07 Anthony Francis Silmon Improvements in and relating to the purging of pipework
EP0335305A1 (en) * 1988-03-31 1989-10-04 STEIN INDUSTRIE Société Anonyme dite: Closed enclosure forming device inside two metal pipe works to be connected by shielding gas arc welding
GB2327480A (en) * 1997-07-18 1999-01-27 James Holland Inflatable plug assembly for sealing and purging of air internal pipe area for welding
GB2396393A (en) * 2002-12-16 2004-06-23 Lattice Intellectual Property A method of sealing a pipeline
GB2420837A (en) * 2004-12-01 2006-06-07 Martyn James Smith Inflatable pipe welding back shield device
DE102009051512A1 (en) * 2009-11-01 2011-05-12 Krüger Schweiß- und Industriebedarf GmbH Device for gas flooding of sealed volumes inside hollow portions that are welded with one another, comprises flexible ductile sealing element, which is positioned inside hollow portions
CN107355544A (en) * 2017-08-11 2017-11-17 岳阳高澜节能装备制造有限公司 A kind of air inflation sealing device for stainless steel pipes welding
CN112605505A (en) * 2020-11-30 2021-04-06 成都飞机工业（集团）有限责任公司 Welding gas protection and air pressure regulation and control device for inner wall of pipe
CN112719516A (en) * 2020-12-10 2021-04-30 渤海造船厂集团有限公司 Flexible adjustable type cylindrical structure girth welding protection air sealing device and method
CN115194634A (en) * 2022-07-19 2022-10-18 安徽中科大禹科技有限公司 Polishing equipment for inner surface of special-shaped pipe

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101067A (en) * 1976-07-23 1978-07-18 Sloan Purge Products Co., Inc. Heat sink welding and purging apparatus
DE2752526A1 (en) * 1976-11-24 1978-06-01 Hallenbeck Emerson CLEANING DEVICE FOR WELDING SITES
US4413655A (en) * 1981-04-14 1983-11-08 Brown George T Pipe repair bypass system
GB2119687A (en) * 1982-04-28 1983-11-23 British Nuclear Fuels Ltd Method of and apparatus for orbital welding
GB2201623A (en) * 1987-02-25 1988-09-07 Anthony Francis Silmon Improvements in and relating to the purging of pipework
GB2201623B (en) * 1987-02-25 1990-07-04 Anthony Francis Silmon Improvements in and relating to the purging of pipework
EP0335305A1 (en) * 1988-03-31 1989-10-04 STEIN INDUSTRIE Société Anonyme dite: Closed enclosure forming device inside two metal pipe works to be connected by shielding gas arc welding
FR2629378A1 (en) * 1988-03-31 1989-10-06 Stein Industrie DEVICE FOR FORMING A CLOSED ENCLOSURE WITHIN TWO METAL PIPES TO BE CONNECTED BY ARC WELDING WITH PROTECTIVE GAS
GB2327480A (en) * 1997-07-18 1999-01-27 James Holland Inflatable plug assembly for sealing and purging of air internal pipe area for welding
GB2396393A (en) * 2002-12-16 2004-06-23 Lattice Intellectual Property A method of sealing a pipeline
GB2420837A (en) * 2004-12-01 2006-06-07 Martyn James Smith Inflatable pipe welding back shield device
GB2420837B (en) * 2004-12-01 2010-03-03 Martyn James Smith Device for blocking-off part of interior of a pipe
DE102009051512A1 (en) * 2009-11-01 2011-05-12 Krüger Schweiß- und Industriebedarf GmbH Device for gas flooding of sealed volumes inside hollow portions that are welded with one another, comprises flexible ductile sealing element, which is positioned inside hollow portions
CN107355544A (en) * 2017-08-11 2017-11-17 岳阳高澜节能装备制造有限公司 A kind of air inflation sealing device for stainless steel pipes welding
CN107355544B (en) * 2017-08-11 2023-09-29 岳阳高澜节能装备制造有限公司 Be used for stainless steel pipeline welded inflatable seal device
CN112605505A (en) * 2020-11-30 2021-04-06 成都飞机工业（集团）有限责任公司 Welding gas protection and air pressure regulation and control device for inner wall of pipe
CN112719516A (en) * 2020-12-10 2021-04-30 渤海造船厂集团有限公司 Flexible adjustable type cylindrical structure girth welding protection air sealing device and method
CN112719516B (en) * 2020-12-10 2022-06-14 渤海造船厂集团有限公司 Flexible adjustable type cylindrical structure girth welding protection air sealing device and method
CN115194634A (en) * 2022-07-19 2022-10-18 安徽中科大禹科技有限公司 Polishing equipment for inner surface of special-shaped pipe
CN115194634B (en) * 2022-07-19 2023-06-20 安徽中科大禹科技有限公司 Special-shaped pipe inner surface polishing equipment

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Legal Events

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