GB809874A - Flexible metallic tubes - Google Patents
Flexible metallic tubesInfo
- Publication number
- GB809874A GB809874A GB3084356A GB3084356A GB809874A GB 809874 A GB809874 A GB 809874A GB 3084356 A GB3084356 A GB 3084356A GB 3084356 A GB3084356 A GB 3084356A GB 809874 A GB809874 A GB 809874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- rib
- swages
- decreases
- depth
- 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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Joints Allowing Movement (AREA)
Abstract
809,874. Making corrugated tubes; jointing. ACCLES & POLLOCK Ltd. Sept. 26, 1957 [Oct. 10, 1956], No. 30843/56. Addition to 769,728. Classes 83 (2) and 83 (4). In an improvement or modification of the method of manufacturing a flexible metallic tube as disclosed in the parent Specification, wherein there is pressed up in the wall of the tube a helically extending rib, a cylindrical tube 3, without internal support, is rotatably fed through a plurality of swages 4 which when brought together define a substantially cylindrical operating surface on which is formed a helically extending rib 5 which decreases in width, increases in depth and decreases in helix angle in the direction of feed of the tube. The swages may be formed as a plurality of parts 4a detachably connected together, each part having a recess 4b and a rib 5 of constant depth, the parts being assembled so that the rib of the swaging assembly gradually increases in depth and decreases in width and helix angle. Since no mandrel is used a flexible tube can be produced having a plain portion at either end or at an intermediate position. Further, by introducing the end of a second tube into the trailing end of the tube being operated upon the two tubes can be joined together by the complementary groove and rib formed in the tube as the overlapping parts are passed through the swages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3084356A GB809874A (en) | 1956-10-10 | 1956-10-10 | Flexible metallic tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3084356A GB809874A (en) | 1956-10-10 | 1956-10-10 | Flexible metallic tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB809874A true GB809874A (en) | 1959-03-04 |
Family
ID=10314013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3084356A Expired GB809874A (en) | 1956-10-10 | 1956-10-10 | Flexible metallic tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB809874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148426A (en) * | 1976-09-10 | 1979-04-10 | Nippon Steel Corporation | Method and apparatus for manufacturing metal pipe |
-
1956
- 1956-10-10 GB GB3084356A patent/GB809874A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148426A (en) * | 1976-09-10 | 1979-04-10 | Nippon Steel Corporation | Method and apparatus for manufacturing metal pipe |
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