NL6412978A - - Google Patents

Info

Publication number
NL6412978A
NL6412978A NL6412978A NL6412978A NL6412978A NL 6412978 A NL6412978 A NL 6412978A NL 6412978 A NL6412978 A NL 6412978A NL 6412978 A NL6412978 A NL 6412978A NL 6412978 A NL6412978 A NL 6412978A
Authority
NL
Netherlands
Application number
NL6412978A
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 FR953120A external-priority patent/FR1382331A/fr
Priority claimed from FR970082A external-priority patent/FR85959E/fr
Application filed filed Critical
Publication of NL6412978A publication Critical patent/NL6412978A/xx

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/16Making tubes with varying diameter in longitudinal direction
    • B21C37/18Making tubes with varying diameter in longitudinal direction conical tubes
    • B21C37/185Making tubes with varying diameter in longitudinal direction conical tubes starting from sheet material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials For Medical Uses (AREA)
  • Moulding By Coating Moulds (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Treatment Of Fiber Materials (AREA)
NL6412978A 1963-11-08 1964-11-06 NL6412978A (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR953120A FR1382331A (fr) 1963-11-08 1963-11-08 Procédé pour la fabrication des tubes coniques et tubes fabriqués par ce procédé
FR970082A FR85959E (fr) 1964-04-08 1964-04-08 Procédé pour la fabrication des tubes coniques et tubes fabriqués par ce procédé

Publications (1)

Publication Number Publication Date
NL6412978A true NL6412978A (xx) 1965-05-10

Family

ID=26204239

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6412978A NL6412978A (xx) 1963-11-08 1964-11-06

Country Status (7)

Country Link
BE (1) BE655373A (xx)
CH (1) CH447991A (xx)
DE (2) DE1452196A1 (xx)
ES (1) ES305719A1 (xx)
GB (1) GB1075548A (xx)
LU (1) LU47290A1 (xx)
NL (1) NL6412978A (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815477A1 (de) * 1978-04-10 1979-10-18 Vulkan Werk Gmbh Rohr aus schraubenfoermig gewickeltem bandmaterial
EP0201729A3 (de) * 1985-04-12 1987-04-29 Horst Hano Vorrichtung zur Herstellung von Wickelrohr sowie Wickelrohr
US8720153B2 (en) 2010-01-25 2014-05-13 Keystone Tower Systems, Inc. Tapered spiral welded structure
US10189064B2 (en) 2010-01-25 2019-01-29 Keystone Tower Systems, Inc. Control system and method for tapered structure construction
KR102056034B1 (ko) 2011-09-20 2019-12-13 키스톤 타워 시스템스, 인코포레이티드 테이퍼 구조체 구성

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH396A (de) * 1889-01-30 1889-09-11 Wilhelm Lorenz Werkzeugscheibe mit zentralem Hohlraum und mit im Kreise angeordneten, nach dem Hohlraum hin gerichteten vor- und zurückbewegbaren Werkzeugen
FR1294632A (fr) * 1961-07-11 1962-05-26 Machine pour la fabrication de tubes de différents diamètres à partir d'une bande enroulée en hélice

Also Published As

Publication number Publication date
DE1777330B1 (de) 1972-03-16
ES305719A1 (es) 1965-05-01
GB1075548A (en) 1967-07-12
LU47290A1 (xx) 1965-05-05
BE655373A (xx) 1965-05-06
CH447991A (fr) 1967-12-15
DE1452196A1 (de) 1969-03-27

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