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
Application number
DE19691963805
Other languages
German (de)
Other versions
DE1963805A1 (en
DE1963805C (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of DE1963805A1 publication Critical patent/DE1963805A1/en
Publication of DE1963805B2 publication Critical patent/DE1963805B2/de
Application granted granted Critical
Publication of DE1963805C publication Critical patent/DE1963805C/en
Expired legal-status Critical Current

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
    • B21C37/123—Making tubes or metal hoses with helically arranged seams of coated strip material; Making multi-wall tubes
    • 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)
DE19691963805 1968-12-27 1969-12-19 Device for the production of two-layer pipes by winding two strips in a screw-shaped manner Expired DE1963805C (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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