GB2198203A - Breaking flanged joints - Google Patents
Breaking flanged joints Download PDFInfo
- Publication number
- GB2198203A GB2198203A GB08628816A GB8628816A GB2198203A GB 2198203 A GB2198203 A GB 2198203A GB 08628816 A GB08628816 A GB 08628816A GB 8628816 A GB8628816 A GB 8628816A GB 2198203 A GB2198203 A GB 2198203A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gripping
- pipes
- members
- displacing
- away
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/16—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same abutted flanges
-
- 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
- F16L23/00—Flanged joints
- F16L23/003—Auxiliary devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention provides apparatus 10 for displacing the juxtaposed ends of pipes 12, 14 towards or away from one another e.g. for replacing a gasket 18A; the apparatus 10 comprises a first gripping member 22 engageable with a first pipe 12; a second gripping member 24 engageable with a second pipe 14; a first and second clamping means by chains 30 for clamping the first and second pipes 12, 14 to the first and second gripping members e.g. pivoted jaw blocks 22, 24 respectively; a guide means e.g. piston 38/cylinder 36 for permitting movement of the gripping members towards and away from one another in a guided manner; and a displacing means e.g. turn buckle 44 for displacing the gripping members 22, 24 towards and away from one another. <IMAGE>
Description
AN APPARATUS FOR REPLACING PIPE GASKETS
BACKGROUND TO THE INVENTION
THIS INVENTION relates to an apparatus for separating pipe flanges for example for purposes of replacing a gasket. The apparatus is particularly suitable for use with pipes that have end flanges which may be coupled together by means of nuts and bolts, a clamping collar or the like. Where long lengths of pipeline are encountered it is often problematical to separate pipe flanges and it is an object of the invention to provide apparatus which will facilitate the separation and drawing together of pipe flanges.
SUMMARY OF INVENTION
According to the invention there is provided an apparatus for displacing the juxtaposed ends of pipes towards or away from one another including:
a first gripping member engageable with a
first pipe;
a second gripping member engageable with a
second pipe;
a first and second clamping means for clamping
the first and second pipes to the first and
second gripping members respectively;
a guide means for permitting movement of the
gripping members towards and away from one
another in a guided manner; and
a displacing means for displacing the gripping
members together and away from one another.
Conveniently the guide means may be such that the gripping members are linearly displaceable towards and away from one another. Preferably, the guide means will operate telescopically. In one form it may comprise a telescoping piston and cylinder arrangement, one gripping member being coupled to the piston and the other gripping member being coupled to the cylinder.
As the pipes are not necessarily aligned, and are often at an angle to one another, the gripping members may be pivotally mounted on mounting members and there may also be a locking means for locking the gripping members at selected angles on the mounting members.
In a preferred form the displacing means may comprise a turn buckle, the turn buckle being coupled to either the gripping members or the mounting members.
DESCRIPTION OF INVENTION
The invention is now described, by way of an example, with reference to the accompanying drawings, in which:
Figure 1 is an elevation of a gasket replacing
apparatus in accordance with the
invention engaged with two pipes that
are coupled together,
Figure 2 is an elevation of the apparatus and
the pipes in Figure 1 with the pipes
separated,
Figure 3 is a section on line Ill-Ill in Figure
1; and
Figure 4 is a view from below of the apparatus
in Figure 1, partly sectioned, on line
IV-IV in Figure 1.
Referring to the drawings, an apparatus for replacing a gasket between two pipes is designated generally by reference numeral 10, the pipes being designated by numerals 12 and 14. The pipes 12 and 14 have end flanges 16 between which a gasket 18 is located. The pipes 12 and 14 are coupled together by means of a a two-part clamping ring 20.
The apparatus 10 has a first jaw-block 22 and a second jaw-block 24 that are pivotally mounted on arms 26 and 28 respectively. The jaw-blocks 22 and 24 have serrated gripping surfaces 29 which are curved so as to grip the pipes 12 and 14 better.
The jaw-blocks 22 and 24 have clamping chains 30 by means of which the pipes 12 and 14 may be clamped against the surfaces 29. The jaw-blocks 22 and 24 carry chain locks 32 with which the chains 30 may be engaged and disengaged, and tightening nut and bolt arrangements 34. The arms 26 and 28 are fast with a slide arrangement formed by a hollow tube 36 and a rod 38 that slides within the tube 36. Thus, the arm 26 is secured to the rod 38 by means of a bar 40, to be spaced therefrom, and the arm 28 is similarly secured to the tube 36 by means of a bar 42. The arms 26 and 28 are internally screw-threaded and are engaged with a turn buckle 44 by means of which the arms 26 and 28 are displaced towards and away from one another, their motion being guided by the tube and rod 36, 38.
The jaw-blocks 22 and 24 are pivotally mounted on the arms 26 and 28, being held in position by an upper bolt 46 with a further lower bolt 48 being provided to lock the jaw-blocks 22, 24 in any particular angular position.
In use, the turn buckle 44 is rotated to bring the jaw-blocks 22 and 24 towards one another until they are a suitable distance apart, the chains 30 are disengaged from the jaw-blocks 22 and 24 and the surfaces 29 are brought into engagement with the pipes 12 and 14. Normally, the pipes 12 and 14 are elavated and accordingly the apparatus 10 is located below the pipes 12 and 14 and can be held in position by a suitable prop or jack (not shown). The chains 30are then engaged with the locks 32 and the chains 30 are tightened by means of the nut and bolt arrangements 34. Once the pipes 12 and 14 have been securely clamped the bolts 48 are tightened to lock the jaw-blocks 22 and 24 in the particular angular positions they have attained, which are determined by the angle between the pipes 12 and 14. The turn buckle 44 is then rotated to move the jaw-blocks 22 and 24 slightly towards one another thereby compressing the gasket 18. The collar 20 is removed and the turn buckle 44 is then rotated in the opposite direction to move the pipes 12 and 14 apart in a controlled manner. When they are sufficiently far apart the old gasket 18 is removed and a new gasket is inserted between the flanges 16. The turn buckle 44 is then again rotated in the appropriate direction to bring the pipes 12 and 14 together so that the collar 20 may be replaced. The chains 30 are then loosened and disengaged and the apparatus removed.
Claims (8)
1. Apparatus for separating and drawing
together the juxtaposed ends of pipes
comprising:
a first gripping member engageable with a
first pipe;
a second gripping member engageable with
a second pipe;
a first and second clamping means for
clamping the first and second pipes to
the first and second gripping members
respectively;
a guide means for permitting movement of
the gripping members towards and away
from one another in a guided manner; and
a displacing means for displacing the
gripping members towards and away from
one another.
2. Apparatus according to claim 1 wherein
the guide means operates to cause the
gripping members to be displaced towards
and away from one another linearly.
3. Apparatus according to claim 2 wherein
the guide means comprises a first
telescoping member and a second
telescoping member, the first telescoping
member being coupled to the first
gripping member and the second
telescoping member being coupled to the
second gripping member.
4. Apparatus according to claim 3 wherein
the guide means comprises a telescoping
piston and cylinder arrangement with one
gripping member being coupled to the
piston and the other gripping member
being coupled to the cylinder.
5. Apparatus according to claim 1 wherein
the first gripping member and a second
gripping member are pivotally mounted on
a first mounting member and a second
mounting member respectively.
6. Apparatus according to claim 5 wherein
locking means is provided for locking the
gripping members at selected angles on
the mounting members.
7. Apparatus according to claim 1 wherein
the displacing means comprises a turn
buckle which engages the first and the
second gripping members.
8. Apparatus according to claim 1 wherein
the gripping members are pivotally
mounted on mounting members and the
displacing means comprises a turn buckle
coupled such mounting members.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8628816A GB2198203B (en) | 1986-12-02 | 1986-12-02 | Separating and drawing together pipe flanges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8628816A GB2198203B (en) | 1986-12-02 | 1986-12-02 | Separating and drawing together pipe flanges |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8628816D0 GB8628816D0 (en) | 1987-01-07 |
GB2198203A true GB2198203A (en) | 1988-06-08 |
GB2198203B GB2198203B (en) | 1991-02-20 |
Family
ID=10608324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8628816A Expired - Lifetime GB2198203B (en) | 1986-12-02 | 1986-12-02 | Separating and drawing together pipe flanges |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2198203B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8814872U1 (en) * | 1988-11-30 | 1989-01-26 | Holten, Karl-Heinz von, 45327 Essen | Set for repairing damaged flexible pressure lines of vehicles, especially motor vehicles and ships |
GB2200963B (en) * | 1987-01-21 | 1990-10-24 | William Stead Masters | Parting tool |
GB2240599A (en) * | 1989-09-29 | 1991-08-07 | Welsh Water Plc | Apparatus and fitting for coupling plastics pipes |
GB2253889A (en) * | 1991-03-19 | 1992-09-23 | Jack Ross | Pipe restraint systems |
JP2010151243A (en) * | 2008-12-25 | 2010-07-08 | Cosmo Koki Co Ltd | Attaching/detaching device of pipe connection member |
EP2522949A3 (en) * | 2011-05-11 | 2014-12-17 | Krauss-Maffei Wegmann GmbH & Co. KG | Device and propellant portioning method |
FR3055683A1 (en) * | 2016-09-07 | 2018-03-09 | Grtgaz | DEVICE FOR MAINTENANCE OF A CHANNEL |
WO2022076003A1 (en) * | 2020-10-07 | 2022-04-14 | Saudi Arabian Oil Company | Flange management and services tool |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106142534A (en) * | 2015-04-24 | 2016-11-23 | 中国三冶集团有限公司 | New-type heat-melting device and application thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB524244A (en) * | 1939-01-25 | 1940-08-01 | Polaris Ltd | An improved method and means for separating the sections of tubular sectional masts or poles |
GB1289732A (en) * | 1969-03-25 | 1972-09-20 | ||
GB1428583A (en) * | 1973-06-26 | 1976-03-17 | Amp Inc | Hand tool for assembling tubes |
GB1554807A (en) * | 1977-10-14 | 1979-10-31 | Tesson P A | Pipe handling method and appartus |
GB2077381A (en) * | 1980-06-05 | 1981-12-16 | Gibson Jack Edward | Pipe joining and pipeline fabricating apparatus |
GB2112484A (en) * | 1981-12-10 | 1983-07-20 | Jan Rehnman | A tool for bringing two heavy tubular members into abutment |
US4530522A (en) * | 1983-09-06 | 1985-07-23 | Remote Technology Corp. | Releasable connector for conduit components |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI77311C (en) * | 1985-09-02 | 1989-02-10 | Veikko Salo | Rörläggningsarbetsredskap. |
-
1986
- 1986-12-02 GB GB8628816A patent/GB2198203B/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB524244A (en) * | 1939-01-25 | 1940-08-01 | Polaris Ltd | An improved method and means for separating the sections of tubular sectional masts or poles |
GB1289732A (en) * | 1969-03-25 | 1972-09-20 | ||
GB1428583A (en) * | 1973-06-26 | 1976-03-17 | Amp Inc | Hand tool for assembling tubes |
GB1554807A (en) * | 1977-10-14 | 1979-10-31 | Tesson P A | Pipe handling method and appartus |
GB2077381A (en) * | 1980-06-05 | 1981-12-16 | Gibson Jack Edward | Pipe joining and pipeline fabricating apparatus |
GB2112484A (en) * | 1981-12-10 | 1983-07-20 | Jan Rehnman | A tool for bringing two heavy tubular members into abutment |
US4530522A (en) * | 1983-09-06 | 1985-07-23 | Remote Technology Corp. | Releasable connector for conduit components |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2200963B (en) * | 1987-01-21 | 1990-10-24 | William Stead Masters | Parting tool |
DE8814872U1 (en) * | 1988-11-30 | 1989-01-26 | Holten, Karl-Heinz von, 45327 Essen | Set for repairing damaged flexible pressure lines of vehicles, especially motor vehicles and ships |
GB2240599A (en) * | 1989-09-29 | 1991-08-07 | Welsh Water Plc | Apparatus and fitting for coupling plastics pipes |
GB2253889A (en) * | 1991-03-19 | 1992-09-23 | Jack Ross | Pipe restraint systems |
US5249786A (en) * | 1991-03-19 | 1993-10-05 | British Gas Plc | Pipe restraint system |
GB2253889B (en) * | 1991-03-19 | 1994-07-20 | Jack Ross | Pipe restraint system |
JP2010151243A (en) * | 2008-12-25 | 2010-07-08 | Cosmo Koki Co Ltd | Attaching/detaching device of pipe connection member |
EP2522949A3 (en) * | 2011-05-11 | 2014-12-17 | Krauss-Maffei Wegmann GmbH & Co. KG | Device and propellant portioning method |
FR3055683A1 (en) * | 2016-09-07 | 2018-03-09 | Grtgaz | DEVICE FOR MAINTENANCE OF A CHANNEL |
WO2022076003A1 (en) * | 2020-10-07 | 2022-04-14 | Saudi Arabian Oil Company | Flange management and services tool |
US11346465B2 (en) | 2020-10-07 | 2022-05-31 | Saudi Arabian Oil Company | Flange management and services tool |
Also Published As
Publication number | Publication date |
---|---|
GB2198203B (en) | 1991-02-20 |
GB8628816D0 (en) | 1987-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20011202 |