GB1225775A - - Google Patents
Info
- Publication number
- GB1225775A GB1225775A GB1225775DA GB1225775A GB 1225775 A GB1225775 A GB 1225775A GB 1225775D A GB1225775D A GB 1225775DA GB 1225775 A GB1225775 A GB 1225775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipes
- operated
- jaws
- clamp
- piston
- 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
Links
Classifications
-
- 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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
1,225,775. Tube expanders; welding by fusion. BRITISH STEEL CORP. 27 May, 1968 [2 June, 1967], No. 25549/67. Addition to 1,078,646. Headings B3J and B3R. A tool for aligning metal pipes 33, 34, e.g. to be joined by welding, comprises a tapered plug 4 operated by a piston and cylinder 7, 8 for expanding means 1 engaging in the pipe ends, and a clamp 27 operated independently of the means 1 for clamping the tool in one of the pipes. The pipe-ends may also be expanded by the jaws 1 which are returned by springs 5, Fig. 2 (not shown), connected to securing bolts 24 for guide plates 18. A tube 29 inflatable by compressed-air expanding the clamp 27, the piston 7 being operated by oil pressure. Angularly-spaced guide wheels 32 engage both pipes. A recess in the jaws 1 receives a weld backing ring 35.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2554967 | 1967-06-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1225775A true GB1225775A (en) | 1971-03-24 |
Family
ID=10229486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1225775D Expired GB1225775A (en) | 1967-06-02 | 1967-06-02 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1225775A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4262517A (en) * | 1978-08-07 | 1981-04-21 | Hitachi, Ltd. | Method of correcting distorted pipe end |
EP0154030A1 (en) * | 1984-03-05 | 1985-09-11 | Siemens Aktiengesellschaft | Apparatus for enlarging tube ends |
GB2175833A (en) * | 1985-05-23 | 1986-12-10 | Rolls Royce | Welding jig |
GB2184810A (en) * | 1985-10-05 | 1987-07-01 | Insituform Group Ltd | Remote controlled sealing/welding equipment in pipes |
GB2205143A (en) * | 1987-05-07 | 1988-11-30 | Houlder Offshore Ltd | Joining pipes together |
-
1967
- 1967-06-02 GB GB1225775D patent/GB1225775A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4262517A (en) * | 1978-08-07 | 1981-04-21 | Hitachi, Ltd. | Method of correcting distorted pipe end |
EP0154030A1 (en) * | 1984-03-05 | 1985-09-11 | Siemens Aktiengesellschaft | Apparatus for enlarging tube ends |
GB2175833A (en) * | 1985-05-23 | 1986-12-10 | Rolls Royce | Welding jig |
GB2175833B (en) * | 1985-05-23 | 1989-07-19 | Rolls Royce Plc | Welding apparatus and jig. |
GB2184810A (en) * | 1985-10-05 | 1987-07-01 | Insituform Group Ltd | Remote controlled sealing/welding equipment in pipes |
GB2184810B (en) * | 1985-10-05 | 1989-10-18 | Insituform Group Ltd | Improvements relating to remote controlled sealing/welding equipment |
GB2205143A (en) * | 1987-05-07 | 1988-11-30 | Houlder Offshore Ltd | Joining pipes together |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |