GB722040A - Improvements in and relating to tools for sealing the ends of tubular elements subjected to internal pressure - Google Patents

Improvements in and relating to tools for sealing the ends of tubular elements subjected to internal pressure

Info

Publication number
GB722040A
GB722040A GB8858/52A GB885852A GB722040A GB 722040 A GB722040 A GB 722040A GB 8858/52 A GB8858/52 A GB 8858/52A GB 885852 A GB885852 A GB 885852A GB 722040 A GB722040 A GB 722040A
Authority
GB
United Kingdom
Prior art keywords
spindle
tube
cross
jaws
piece
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
GB8858/52A
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.)
Svenska Maskinverken AB
Original Assignee
Svenska Maskinverken AB
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 Svenska Maskinverken AB filed Critical Svenska Maskinverken AB
Publication of GB722040A publication Critical patent/GB722040A/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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/115—Caps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Joints With Sleeves (AREA)

Abstract

722,040. Devices for stopping pipes. AKTIEBOLAGET SVENSKA MASKINVERKEN April 7, 1952. [April 16, 1951] No. 8858/52. Class 99 (2). A tool for removably securing a sealing block 25 over the open end of a tube 12 subjected to internal pressure comprises a body 1 having rigid, spacedapart side walls 30, 31 provided with opposed wedge surfaces 3, 4 which may be plain or constitute parts of a cone, converging towards each other and spaced axially from a transverse member 15 connecting the walls 30, 31, and jaw members 10, 11 which slidably engage the surfaces 3, 4 and have inner gripping surfaces 33, e.g. formed by teeth. There are means, such as a spindle 13 screwed into the member 15, which are operable to press the block 25 into sealing engagement with the end of the tube and which by reaction on the member 15 urge the body 1 in a direction to force the jaws 10, 11 into gripping engagement with the wall of the tube. The jaws 10, 11 may be curved in cross-section and secured to resilient arms 6, 7 connected by a cross-piece 5, and a compression spring 21 may be disposed about the spindle 13 and between the member 15 and the cross-piece 5. A head 22 of the spindle 13 may bear on the block 25 which may be provided with a passage 34 for a pressure medium and seat on the end of the tube with the interposition of a sealing washer 26. In operation, the jaws 10, 11 are opened by turning the spindle 13 to draw up the head 22 into contact with the cross-piece 5 and compress the spring 21, the tool then being positioned over the end of the tube 12. By turning the spindle 13 in the opposite direction and with the block 25 in place the spring expands to depress the cross-piece 5 and the arms 6, 7 so that the wedge-action of the surfaces 3, 4 presses the jaws 10, 11 against the tube, and the spindle exerts pressure on the block. In a modification, the spring 21 is replaced by a sleeve screwed into the cross-piece 5 and into which the spindle is screwed, the sleeve being turned independently of the spindle 13 to operate the jaws 10, 11.
GB8858/52A 1951-04-16 1952-04-07 Improvements in and relating to tools for sealing the ends of tubular elements subjected to internal pressure Expired GB722040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE722040X 1951-04-16

Publications (1)

Publication Number Publication Date
GB722040A true GB722040A (en) 1955-01-19

Family

ID=20316020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8858/52A Expired GB722040A (en) 1951-04-16 1952-04-07 Improvements in and relating to tools for sealing the ends of tubular elements subjected to internal pressure

Country Status (1)

Country Link
GB (1) GB722040A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959955A (en) * 1957-04-16 1960-11-15 R C M Revisione Costruzione Ma Press for testing pressure-tightness of pipes and tubes
GB2342970A (en) * 1998-10-24 2000-04-26 David Mchale Mains water pipe terminating end cap
WO2014044468A1 (en) * 2012-09-19 2014-03-27 Areva Gmbh Device for closing a drive casing pipe
GB2554935A (en) * 2016-10-14 2018-04-18 Mcgarian Bruce An apparatus for sealing a pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959955A (en) * 1957-04-16 1960-11-15 R C M Revisione Costruzione Ma Press for testing pressure-tightness of pipes and tubes
GB2342970A (en) * 1998-10-24 2000-04-26 David Mchale Mains water pipe terminating end cap
GB2342970B (en) * 1998-10-24 2000-10-18 David Mchale Apparatus and methodology for terminating a mains water pipe
WO2014044468A1 (en) * 2012-09-19 2014-03-27 Areva Gmbh Device for closing a drive casing pipe
US9922735B2 (en) 2012-09-19 2018-03-20 Areva Gmbh Device for closing a drive casing pipe
GB2554935A (en) * 2016-10-14 2018-04-18 Mcgarian Bruce An apparatus for sealing a pipe

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