FR727171A - Method and device for the manufacture of spiral grooved endless tubes or pipes - Google Patents

Method and device for the manufacture of spiral grooved endless tubes or pipes

Info

Publication number
FR727171A
FR727171A FR727171DA FR727171A FR 727171 A FR727171 A FR 727171A FR 727171D A FR727171D A FR 727171DA FR 727171 A FR727171 A FR 727171A
Authority
FR
France
Prior art keywords
pipes
manufacture
spiral grooved
endless tubes
grooved endless
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
French (fr)
Inventor
Josef Kopetz
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 FR727171A publication Critical patent/FR727171A/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
    • B21C37/124—Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
FR727171D 1930-11-10 1931-11-07 Method and device for the manufacture of spiral grooved endless tubes or pipes Expired FR727171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT727171X 1930-11-10

Publications (1)

Publication Number Publication Date
FR727171A true FR727171A (en) 1932-06-14

Family

ID=3680018

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727171D Expired FR727171A (en) 1930-11-10 1931-11-07 Method and device for the manufacture of spiral grooved endless tubes or pipes

Country Status (1)

Country Link
FR (1) FR727171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755206C (en) * 1933-07-06 1953-07-20 Helene Hussnigg Flexible tube made of two or more straps wound on a fixed mandrel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755206C (en) * 1933-07-06 1953-07-20 Helene Hussnigg Flexible tube made of two or more straps wound on a fixed mandrel

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