CH561089A5 - - Google Patents

Info

Publication number
CH561089A5
CH561089A5 CH219973A CH219973A CH561089A5 CH 561089 A5 CH561089 A5 CH 561089A5 CH 219973 A CH219973 A CH 219973A CH 219973 A CH219973 A CH 219973A CH 561089 A5 CH561089 A5 CH 561089A5
Authority
CH
Switzerland
Application number
CH219973A
Original Assignee
Schwarz Walter
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
Priority claimed from AT136872A external-priority patent/AT316283B/de
Priority claimed from AT110373A external-priority patent/AT325391B/de
Application filed by Schwarz Walter filed Critical Schwarz Walter
Publication of CH561089A5 publication Critical patent/CH561089A5/xx

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)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
CH219973A 1972-02-21 1973-02-15 CH561089A5 (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT136872A AT316283B (de) 1972-02-21 1972-02-21 Verfahren und Vorrichtung zum Herstellen von Rohren
AT110373A AT325391B (de) 1973-02-07 1973-02-07 Verfahren zum herstellen von rohren

Publications (1)

Publication Number Publication Date
CH561089A5 true CH561089A5 (xx) 1975-04-30

Family

ID=25594909

Family Applications (1)

Application Number Title Priority Date Filing Date
CH219973A CH561089A5 (xx) 1972-02-21 1973-02-15

Country Status (3)

Country Link
CH (1) CH561089A5 (xx)
DE (1) DE2307228C3 (xx)
SE (1) SE403977B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2077486A1 (es) * 1991-07-19 1995-11-16 Garcia Cesareo Rivas Maquina conformadora de tubos de chapa.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858517A (en) * 1988-06-08 1989-08-22 Rick Coker Fire damper kit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1964591C3 (de) * 1969-12-23 1973-09-20 Emil 6603 Sulzbach Siegwart Falzrollen einer Vorrichtung zur Hmrstellung von Wendelfalzrohren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2077486A1 (es) * 1991-07-19 1995-11-16 Garcia Cesareo Rivas Maquina conformadora de tubos de chapa.

Also Published As

Publication number Publication date
DE2307228A1 (de) 1973-08-30
SE403977B (sv) 1978-09-18
DE2307228C3 (de) 1981-05-14
DE2307228B2 (de) 1980-09-25

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Legal Events

Date Code Title Description
PL Patent ceased