GB678020A - Improvements relating to the bending of concentric tubes - Google Patents
Improvements relating to the bending of concentric tubesInfo
- Publication number
- GB678020A GB678020A GB30434/49A GB3043449A GB678020A GB 678020 A GB678020 A GB 678020A GB 30434/49 A GB30434/49 A GB 30434/49A GB 3043449 A GB3043449 A GB 3043449A GB 678020 A GB678020 A GB 678020A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- tube
- bending
- bend
- concentric tubes
- 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
- B21D7/00—Bending rods, profiles, or tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
678,020. Making heating &c. coils. HUET, A., and COMPAGNIE DES SURCHAUFFEURS. Nov. 28, 1949 [Dec. 1, 1948], No. 30434/49. Classes 83 (ii) and 83 (iv). Angular bending.-A method of bending two concentric tubes comprises creating on each tube prior to assembly a difference of temperature between the sides of the tube and bending the tubes with the hotter part of the tube on the inside of the bend. Tubes a, b are heated in the regions AD, BC and the tube b inserted in the tube a. Spacers may be inserted between the tubes which are then bent in a known machine. Serpentines for heat-exchange apparatus are made by welding straight concentric tubes to the bend, Fig. 6. Straight inner tubes d are welded to the inner bend b and the outer tubes and the outer bend be connected by a sleeve f<SP>1</SP>, f<SP>2</SP> which may be split and lapped or butted to the parts. Specification 678,002 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR678020X | 1948-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB678020A true GB678020A (en) | 1952-08-27 |
Family
ID=9020784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30434/49A Expired GB678020A (en) | 1948-12-01 | 1949-11-28 | Improvements relating to the bending of concentric tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB678020A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2897872A (en) * | 1956-06-13 | 1959-08-04 | Huet Andre | Methods and apparatus for bending tubes |
| CN102389915A (en) * | 2011-09-26 | 2012-03-28 | 江苏奔宇车身制造有限公司 | Bend forming method for symmetrical framework section bars of cab of large-sized construction machine |
-
1949
- 1949-11-28 GB GB30434/49A patent/GB678020A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2897872A (en) * | 1956-06-13 | 1959-08-04 | Huet Andre | Methods and apparatus for bending tubes |
| CN102389915A (en) * | 2011-09-26 | 2012-03-28 | 江苏奔宇车身制造有限公司 | Bend forming method for symmetrical framework section bars of cab of large-sized construction machine |
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