GB700855A - Improvements in or relating to methods and apparatus for making branched pipe fittings - Google Patents
Improvements in or relating to methods and apparatus for making branched pipe fittingsInfo
- Publication number
- GB700855A GB700855A GB2286650A GB2286650A GB700855A GB 700855 A GB700855 A GB 700855A GB 2286650 A GB2286650 A GB 2286650A GB 2286650 A GB2286650 A GB 2286650A GB 700855 A GB700855 A GB 700855A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blank
- branch
- plungers
- cavity
- support member
- 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
- B21C37/29—Making branched pieces, e.g. T-pieces
- B21C37/294—Forming collars by compressing a fluid or a yieldable or resilient mass in the tube
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Forging (AREA)
Abstract
700,855. Making pipe fittings. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 17, 1951 [Sept. 18, 1950], No. 22866/50. Classes 83 (2) and 83 (4) A method of forming a branched pipe fitting from a substantially tubular blank comprises positioning said blank in a die cavity having at least one branch cavity, applying endwise pressure to said blank and at the same time continuously applying, from an external liquid source, high hydraulic pressure to the interior of the blank whereby part of said blank is extruded into the branch cavity to form a branch portion and continuously supporting the end of said branch throughout the forming operation. A tubular blank 1 is placed in a cavity 2 in a die block 3 and a pair of opposed plungers 4 and 4a are brought into contact with the blank. Hydraulic fluid is introduced into the blank through axial holes 7 and 7a in the plungers. As the compression load of the plungers is increased the hydraulic pressure deforms the blank so that part is forced into a second radial cavity 8 to form a branch portion 9 of the pipe fitting. The second cavity 8 houses a support member 10 slidably mounted therein and which provides a support for the end portion 11 of the branch 9 throughout the forming operation. The support member may be energized by a coil spring or by a second hydraulic system in association with the main hydraulic system. Alternatively, the support member may be mechanically controlled by the plungers 4 and 4a and adapted to retract as the plungers advance within the die. The head of the support member may be flat, concave or convex or any other shape according to the required shape of the branch end 11. In a further modification a cruciform branch fitting may be formed by utilizing two plungers and two support members or a T-shaped fitting may be formed from a cup-shaped blank utilizing one plunger in conjunction with two support members. Solid types of filler material may be used as well as liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2286650A GB700855A (en) | 1950-09-18 | 1950-09-18 | Improvements in or relating to methods and apparatus for making branched pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2286650A GB700855A (en) | 1950-09-18 | 1950-09-18 | Improvements in or relating to methods and apparatus for making branched pipe fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB700855A true GB700855A (en) | 1953-12-09 |
Family
ID=10186284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2286650A Expired GB700855A (en) | 1950-09-18 | 1950-09-18 | Improvements in or relating to methods and apparatus for making branched pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB700855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986001752A1 (en) * | 1984-09-21 | 1986-03-27 | Saga Petroleum A.S | Method for providing a tubular node in a frame work truss structure such as offshore platforms for oil drilling and production |
| CN108127004A (en) * | 2017-12-04 | 2018-06-08 | 李穆艳 | A kind of processing technology of extruded piping branch tee part and the filler of extruded piping branch tee part |
-
1950
- 1950-09-18 GB GB2286650A patent/GB700855A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986001752A1 (en) * | 1984-09-21 | 1986-03-27 | Saga Petroleum A.S | Method for providing a tubular node in a frame work truss structure such as offshore platforms for oil drilling and production |
| US4790172A (en) * | 1984-09-21 | 1988-12-13 | Saga Petroleum A.S. | Method for providing a tubular node in a framework truss structure such as offshore platforms for oil drilling and production |
| CN108127004A (en) * | 2017-12-04 | 2018-06-08 | 李穆艳 | A kind of processing technology of extruded piping branch tee part and the filler of extruded piping branch tee part |
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