DE1963805B2 - - Google Patents
Info
- Publication number
- DE1963805B2 DE1963805B2 DE19691963805 DE1963805A DE1963805B2 DE 1963805 B2 DE1963805 B2 DE 1963805B2 DE 19691963805 DE19691963805 DE 19691963805 DE 1963805 A DE1963805 A DE 1963805A DE 1963805 B2 DE1963805 B2 DE 1963805B2
- Authority
- DE
- Germany
- 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.)
- Granted
Links
Classifications
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- 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
- B21C37/123—Making tubes or metal hoses with helically arranged seams of coated strip material; Making multi-wall tubes
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- 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
- B21C37/126—Supply, or operations combined with supply, of strip material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Manufacturing Of Electric Cables (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU681293037A SU276895A1 (en) | 1968-12-27 | 1968-12-27 | Mill for manufacturing double-layer spiral-seamed pipes |
SU1293037 | 1968-12-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1963805A1 DE1963805A1 (en) | 1970-11-26 |
DE1963805B2 true DE1963805B2 (en) | 1972-10-05 |
DE1963805C DE1963805C (en) | 1973-04-19 |
Family
ID=
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2745389C2 (en) * | 1977-10-08 | 1984-03-08 | Hoesch Werke Ag, 4600 Dortmund | Method and device for the production of multilayer screw sutures |
EP0141897A2 (en) * | 1983-08-30 | 1985-05-22 | Hoesch Aktiengesellschaft | Method of making multi-layered tubes with helically arranged seams, and apparatus for carrying out the method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2745389C2 (en) * | 1977-10-08 | 1984-03-08 | Hoesch Werke Ag, 4600 Dortmund | Method and device for the production of multilayer screw sutures |
EP0141897A2 (en) * | 1983-08-30 | 1985-05-22 | Hoesch Aktiengesellschaft | Method of making multi-layered tubes with helically arranged seams, and apparatus for carrying out the method |
EP0141897A3 (en) * | 1983-08-30 | 1987-05-27 | Hoesch Aktiengesellschaft | Method of making multi-layered tubes with helically arranged seams, and apparatus for carrying out the method |
Also Published As
Publication number | Publication date |
---|---|
FR2027218A1 (en) | 1970-09-25 |
DE1963805A1 (en) | 1970-11-26 |
GB1266399A (en) | 1972-03-08 |
SU276895A1 (en) | 1986-11-15 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |