GB662714A - Improved machine for use in the production of return bends in tubes - Google Patents
Improved machine for use in the production of return bends in tubesInfo
- Publication number
- GB662714A GB662714A GB20152/49A GB2015249A GB662714A GB 662714 A GB662714 A GB 662714A GB 20152/49 A GB20152/49 A GB 20152/49A GB 2015249 A GB2015249 A GB 2015249A GB 662714 A GB662714 A GB 662714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bend
- stressing
- die
- members
- operated via
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
- B21C37/283—Making U-pieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
662,714. Making superheater and like return bends. HUET, A., and COMPAGNIE DES SURCHAUFFEURS. Aug. 2, 1949 [Aug. 4, 1948], No. 20152/49. Classes 83 (ii) and 83 (iv). Angular bending; corrugating.-A machine for reducing the radius of previously formed return bends in tubes comprises a frame 1 supporting a fixed bend clamping member 3, a vertically movable bend clamping member 4 operated via a fluid-pressure cylinder 5, and a bend stressing die 23 operated via a fluid pressure cylinder 14 to move relatively to the bend clamping members 3, 4 to force the limbs of the bend under treatment towards each other. Fig. 1 shows the cylinders 5, 14 pivoted to the frame 1 and having their respective piston rods 7, 15 connected via toggle members 9, 10 and 17, 18 to the movable holding member 4 and stressing die 23. The cylinder 14 may be arranged so that the maximum pressure exerted by the toggle 17, 18 (members aligned) occurs at either half or full piston stroke. Where a single stressing die 23 is used the members 3, 4 may be profiled to form, when closed together, a die block against which the bend is pressed. Fig. 6 shows an arrangement wherein two stressing dies 23, 23a engage opposite limbs of a bend 28, the clamping members 3, 4 being formed as flat plates and the dies being operated via pivoted levers 29, 29a. Fig. 7 shows an arrangement for treating a succession of return bends 34, the clamping members 3, 4 being positioned to allow provision of bend support tables 35, 36 on each side thereof. The stressing die 23 is operated via a pivoted cranked lever 37 so that it is withdrawn, after each working stroke, below the level of the surfaces 35, 36 to allow advancement of the bends 34. Specifications 649,638 and 663,427 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR662714X | 1948-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB662714A true GB662714A (en) | 1951-12-12 |
Family
ID=9011654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20152/49A Expired GB662714A (en) | 1948-08-04 | 1949-08-02 | Improved machine for use in the production of return bends in tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB662714A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1080837B (en) * | 1957-07-17 | 1960-04-28 | Andre Huet | Machine for messaging pipe coils |
-
1949
- 1949-08-02 GB GB20152/49A patent/GB662714A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1080837B (en) * | 1957-07-17 | 1960-04-28 | Andre Huet | Machine for messaging pipe coils |
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