GB688519A - Improvements in or relating to apparatus for and method of forming a reducing elbow - Google Patents
Improvements in or relating to apparatus for and method of forming a reducing elbowInfo
- Publication number
- GB688519A GB688519A GB11136/51A GB1113651A GB688519A GB 688519 A GB688519 A GB 688519A GB 11136/51 A GB11136/51 A GB 11136/51A GB 1113651 A GB1113651 A GB 1113651A GB 688519 A GB688519 A GB 688519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- elbow
- blank
- balls
- shaped
- 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
- B21D9/12—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die
- B21D9/125—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die by pushing through a curved die
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
688,519. Making pipe fittings. TUBE TURNS, Inc. May 11, 1951 [May 29, 1950], No. 11136/51. Classes 83 (ii) and 83 (iv). Drawing.-A method of forming a reducing elbow consists in externally supporting the outer surface of an elbow-shaped blank of uniform diameter and forcing the blank into a die of progressively diminishing cross-section. An elbow-shaped blank B of uniform diameter is positioned in a two-part die 7 and is forced into a portion of diminishing cross-section by a pusher 13 secured to a press head 12, through balls 15, 16, and a member 18 shaped to engage the trailing end of the blank and to contact the balls off the centre line. A guide member 9 for the pusher engages the die. On the upstroke of the press head cords from the head raise the guide 9 and cords 17 withdraw the balls. The die is raised by a member 25 and wedge surfaces on a sow-block 5 housing the die parts separate the die parts to allow extraction of the elbow and the member 18. Specification 107,768, [Class 83 (iv)], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US688519XA | 1950-05-29 | 1950-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB688519A true GB688519A (en) | 1953-03-11 |
Family
ID=22085122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11136/51A Expired GB688519A (en) | 1950-05-29 | 1951-05-11 | Improvements in or relating to apparatus for and method of forming a reducing elbow |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB688519A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2427859A1 (en) * | 1978-06-08 | 1980-01-04 | Siekmann & Co Rohrbogenwerk | Tapered pipe elbow making system - includes forcing straight pipe over rigidly supported tapered and curved mandrel ejected by ring |
| CN110756632A (en) * | 2018-07-25 | 2020-02-07 | 丛华 | Straight pipe elbow cold forming equipment with combined mold core structure |
| CN112007977A (en) * | 2019-05-31 | 2020-12-01 | 杭州三花微通道换热器有限公司 | Device for bending heat exchanger and bending method of heat exchanger |
-
1951
- 1951-05-11 GB GB11136/51A patent/GB688519A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2427859A1 (en) * | 1978-06-08 | 1980-01-04 | Siekmann & Co Rohrbogenwerk | Tapered pipe elbow making system - includes forcing straight pipe over rigidly supported tapered and curved mandrel ejected by ring |
| CN110756632A (en) * | 2018-07-25 | 2020-02-07 | 丛华 | Straight pipe elbow cold forming equipment with combined mold core structure |
| CN110756632B (en) * | 2018-07-25 | 2024-04-12 | 丛华 | Cold forming equipment with combined mold core structure and straight pipe elbow |
| CN112007977A (en) * | 2019-05-31 | 2020-12-01 | 杭州三花微通道换热器有限公司 | Device for bending heat exchanger and bending method of heat exchanger |
| CN112007977B (en) * | 2019-05-31 | 2022-03-25 | 杭州三花微通道换热器有限公司 | Device for bending heat exchanger and bending method of heat exchanger |
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