FR975039A - Machine pour la fabrication de tubes en hélice - Google Patents

Machine pour la fabrication de tubes en hélice

Info

Publication number
FR975039A
FR975039A FR975039DA FR975039A FR 975039 A FR975039 A FR 975039A FR 975039D A FR975039D A FR 975039DA FR 975039 A FR975039 A FR 975039A
Authority
FR
France
Prior art keywords
manufacture
machine
helical tubes
helical
tubes
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
Application number
Other languages
English (en)
Inventor
Anders Rosen
Ernst Ragnar Rosen
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
Application granted granted Critical
Publication of FR975039A publication Critical patent/FR975039A/fr
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
    • B21C37/121—Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR975039D 1948-09-21 1948-09-21 Machine pour la fabrication de tubes en hélice Expired FR975039A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR975039T 1948-09-21

Publications (1)

Publication Number Publication Date
FR975039A true FR975039A (fr) 1951-02-28

Family

ID=9517857

Family Applications (1)

Application Number Title Priority Date Filing Date
FR975039D Expired FR975039A (fr) 1948-09-21 1948-09-21 Machine pour la fabrication de tubes en hélice

Country Status (1)

Country Link
FR (1) FR975039A (fr)

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