CH441200A - Formgerüst zur Herstellung von Schraubennahtrohren - Google Patents
Formgerüst zur Herstellung von SchraubennahtrohrenInfo
- Publication number
- CH441200A CH441200A CH1489764A CH1489764A CH441200A CH 441200 A CH441200 A CH 441200A CH 1489764 A CH1489764 A CH 1489764A CH 1489764 A CH1489764 A CH 1489764A CH 441200 A CH441200 A CH 441200A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- forming frame
- sutures
- screw
- screw sutures
- Prior art date
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
- B21C37/12—Making tubes or metal hoses with helically arranged seams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESC034387 | 1963-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH441200A true CH441200A (de) | 1967-08-15 |
Family
ID=7433122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1489764A CH441200A (de) | 1963-12-27 | 1964-11-18 | Formgerüst zur Herstellung von Schraubennahtrohren |
Country Status (3)
Country | Link |
---|---|
US (1) | US3355921A (de) |
CH (1) | CH441200A (de) |
GB (1) | GB1055829A (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4249406A (en) * | 1978-09-05 | 1981-02-10 | Anderson Frohman C | Line pipe forming apparatus and method |
CA2753990C (en) * | 2008-03-05 | 2017-11-21 | X-Ray Optical Systems, Inc. | Xrf system having multiple excitation energy bands in highly aligned package |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3093103A (en) * | 1958-02-10 | 1963-06-11 | Florence B Berkeley | Method of producing spiral pipe |
US3092056A (en) * | 1959-01-30 | 1963-06-04 | American Pipe & Constr Co | Apparatus for forming welded helical seam tubing from metal strip |
-
1964
- 1964-11-18 CH CH1489764A patent/CH441200A/de unknown
- 1964-11-26 GB GB48065/64A patent/GB1055829A/en not_active Expired
- 1964-12-16 US US418782A patent/US3355921A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB1055829A (en) | 1967-01-18 |
US3355921A (en) | 1967-12-05 |
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