DE202692C - - Google Patents

Info

Publication number
DE202692C
DE202692C DENDAT202692D DE202692DA DE202692C DE 202692 C DE202692 C DE 202692C DE NDAT202692 D DENDAT202692 D DE NDAT202692D DE 202692D A DE202692D A DE 202692DA DE 202692 C DE202692 C DE 202692C
Authority
DE
Germany
Prior art keywords
profiles
different
widths
interlock
reversing
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.)
Active
Application number
DENDAT202692D
Other languages
German (de)
Publication of DE202692C publication Critical patent/DE202692C/de
Active 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
    • B21C37/08—Making tubes with welded or soldered seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Description

Hierzu 1 Blatt Zeichnungen,1 sheet of drawings,

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-An speuch:Patent request: Vorrichtung zur Herstellung von Rohren mit überlappter Naht durch Rollen mit kurvenförmigen Halbprofilen verschiedener Weite, die an dem einen Rande ineinander übergehen, an dem anderen aber die zur Erzeugung eines spiraligen Querschnittes dienende Stufe miteinander bilden, dadurch gekennzeichnet, daß in jeder Rolle mehrere Halbprofile verschiedener Weite derart angeordnet sind, daß durch Umkehrung einer Rolle andere, untereinander verschiedene Profile gebildet werden.Device for making pipes with an overlapped seam by rolling with Curvilinear half-profiles of various widths that interlock at one edge pass over, but on the other one to generate a spiral cross-section Form serving level with each other, characterized in that several in each role Half profiles of different widths are arranged in such a way that by reversing one Other, different profiles are formed.
DENDAT202692D Active DE202692C (en)

Publications (1)

Publication Number Publication Date
DE202692C true DE202692C (en)

Family

ID=465167

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT202692D Active DE202692C (en)

Country Status (1)

Country Link
DE (1) DE202692C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639205A (en) * 1984-07-31 1987-01-27 E. I. Du Pont De Nemours And Company Pump shaft stirrer for grid melter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639205A (en) * 1984-07-31 1987-01-27 E. I. Du Pont De Nemours And Company Pump shaft stirrer for grid melter

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