GB236223A - Improvements in pipe bending machines - Google Patents
Improvements in pipe bending machinesInfo
- Publication number
- GB236223A GB236223A GB16417/25A GB1641725A GB236223A GB 236223 A GB236223 A GB 236223A GB 16417/25 A GB16417/25 A GB 16417/25A GB 1641725 A GB1641725 A GB 1641725A GB 236223 A GB236223 A GB 236223A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mandrel
- bending
- frame
- pipe
- stop
- 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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/05—Bending tubes using mandrels or the like co-operating with forming members
- B21D9/07—Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only
- B21D9/073—Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only with one swinging forming member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
236,223. M³ller, W. June 26, 1924, [Convention date]. Angular bending; rtandrels. - In a pipe-bending machine of the kind in which a bending member carrying a supporting mandrel is rotated round a stationary former, the mandrel is given by a stop mechanism a lead relatively to the bending member just prior to termination of the bending operation, so that bending is completed. with the mandrel out of action and bulging of the pipe thus prevented. The pipe a is secured by a clamp w to a stationary former b mounted on a base and the bending member c is carried by a frame d rotated round the former. The frame has an extension h for supporting the mandrel l which is secured to an arm k having a rod i with nuts t for adjusting the position of the mandrel. The mandrel is normally held in the dotted position by a spring n secured at v to the arm k, which is slotted to engage a pin p<1> on the frame d. The frame carries a lever q which is normally in engagement with a stop r. Just prior to completion of the bending operation the short arm of the lever q engages a stop g fixed in a groove f in the base and the mandrel is thus retracted to the position shown. Bending is continued until the lever engages a stop s on the frame d. On releasing the clamp w the pipe is removed and the frame returned to its initial position, the spring n during this operation resetting the mandrel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE236223X | 1924-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB236223A true GB236223A (en) | 1925-09-24 |
Family
ID=5900786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16417/25A Expired GB236223A (en) | 1924-06-26 | 1925-06-25 | Improvements in pipe bending machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB236223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252392A (en) * | 2012-11-06 | 2013-08-21 | 湖北江山液压科技有限公司 | Molding equipment for large-diameter thin-walled elbow pipe |
-
1925
- 1925-06-25 GB GB16417/25A patent/GB236223A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252392A (en) * | 2012-11-06 | 2013-08-21 | 湖北江山液压科技有限公司 | Molding equipment for large-diameter thin-walled elbow pipe |
| CN103252392B (en) * | 2012-11-06 | 2015-01-28 | 湖北江山液压科技有限公司 | Molding equipment for large-diameter thin-walled elbow pipe |
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