DE239413C - - Google Patents

Info

Publication number
DE239413C
DE239413C DENDAT239413D DE239413DA DE239413C DE 239413 C DE239413 C DE 239413C DE NDAT239413 D DENDAT239413 D DE NDAT239413D DE 239413D A DE239413D A DE 239413DA DE 239413 C DE239413 C DE 239413C
Authority
DE
Germany
Prior art keywords
edges
strips
strip
shows
bent
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
DENDAT239413D
Other languages
German (de)
English (en)
Publication of DE239413C publication Critical patent/DE239413C/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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheet Holders (AREA)
DENDAT239413D Active DE239413C (enExample)

Publications (1)

Publication Number Publication Date
DE239413C true DE239413C (enExample)

Family

ID=498861

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT239413D Active DE239413C (enExample)

Country Status (1)

Country Link
DE (1) DE239413C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692119A (en) * 1952-02-26 1954-10-19 Addison Prod Spirally wound refrigeration evaporator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692119A (en) * 1952-02-26 1954-10-19 Addison Prod Spirally wound refrigeration evaporator

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