GB1319238A - Internal line-up clamps for pipelines - Google Patents
Internal line-up clamps for pipelinesInfo
- Publication number
- GB1319238A GB1319238A GB1319238DA GB1319238A GB 1319238 A GB1319238 A GB 1319238A GB 1319238D A GB1319238D A GB 1319238DA GB 1319238 A GB1319238 A GB 1319238A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- clamp
- disc
- pivot
- expansion arm
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
1319238 Clamps A LONG & CO Ltd 9 Dec 1970 [22 Sept 1969 18 May 1970] 46564/ 69 and 23871/70 Heading E2B [Also in Division B3] An internal line up clamp for aligning pipe sections 12, 14 prior to welding includes levers 36 formed with clamping members 38, 39 which engage respectively the pipes 12, 14 to be joined and one moved under the influence of a single expansion mechanism. As shown a hydraulic cylinder 18 has an annular piston (not shown) attached to disc 20 pivotally connected link 44. The opposite end of link 44, which is bifurcated, is connected by a pivot pin 34 to an expansion arm 30 and the lever 36. In operation the clamp is pulled by means of rod 46 to the end of pipe 12 which is already welded to the previous pipe length and the next pipe length 14 placed around the rod 46 as shown. Fluid pressure is supplied through lines 50, 49 to the cylinder 18 which moves disc 20 against the action of spring 48. Expansion arm 30 then begins to rotate about pivot 35 and clamping member 38 then contacts the pipe 12. Further movement of disc 20 causes clamping member 39 to pivot about the point of contact of member 38 with the pipe 12 against the action of spring 42 until member 39 contacts pipe 14. Further pressure may be applied to firmly locate the clamp. For the sake of clarity the drawing only shows one expansion arm 30 and its associated parts whereas the device has several such arms 30 circumferentially located about the pipe's axis. Each lever 36 may have one or more contact points with the pipe walls and rollers may be fitted at these points to facilitate engaging movement of the clamp.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4656469 | 1969-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1319238A true GB1319238A (en) | 1973-06-06 |
Family
ID=10441739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1319238D Expired GB1319238A (en) | 1969-09-22 | 1969-09-22 | Internal line-up clamps for pipelines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1319238A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2511279A1 (en) * | 1981-08-13 | 1983-02-18 | Inst Elektroswarki Patona | SOLDERING MACHINE FOR END-TO-END PIPES |
| GB2156468A (en) * | 1984-03-31 | 1985-10-09 | Okamoto Kogyo Kk | Internally clamping pipes |
| CN113857741A (en) * | 2021-12-01 | 2021-12-31 | 徐州航天美利达自动焊接设备有限公司 | Automatic welding robot for curved-surface tube plates |
| CN117450143A (en) * | 2023-12-26 | 2024-01-26 | 华海通信技术有限公司 | Tensioning structure of inner unit of cylinder and inner unit of cylinder |
-
1969
- 1969-09-22 GB GB1319238D patent/GB1319238A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2511279A1 (en) * | 1981-08-13 | 1983-02-18 | Inst Elektroswarki Patona | SOLDERING MACHINE FOR END-TO-END PIPES |
| GB2156468A (en) * | 1984-03-31 | 1985-10-09 | Okamoto Kogyo Kk | Internally clamping pipes |
| CN113857741A (en) * | 2021-12-01 | 2021-12-31 | 徐州航天美利达自动焊接设备有限公司 | Automatic welding robot for curved-surface tube plates |
| CN113857741B (en) * | 2021-12-01 | 2022-02-11 | 徐州航天美利达自动焊接设备有限公司 | Automatic welding robot for curved-surface tube plates |
| CN117450143A (en) * | 2023-12-26 | 2024-01-26 | 华海通信技术有限公司 | Tensioning structure of inner unit of cylinder and inner unit of cylinder |
| CN117450143B (en) * | 2023-12-26 | 2024-03-05 | 华海通信技术有限公司 | Tensioning structure of inner unit of cylinder and inner unit of cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |