FR2249719B1 - - Google Patents

Info

Publication number
FR2249719B1
FR2249719B1 FR7338861A FR7338861A FR2249719B1 FR 2249719 B1 FR2249719 B1 FR 2249719B1 FR 7338861 A FR7338861 A FR 7338861A FR 7338861 A FR7338861 A FR 7338861A FR 2249719 B1 FR2249719 B1 FR 2249719B1
Authority
FR
France
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
FR7338861A
Other versions
FR2249719A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VI METALLURG
Original Assignee
VI METALLURG
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 to US525146A priority Critical patent/US2874212A/en
Priority to DE2349757A priority patent/DE2349757C3/de
Priority to US403622A priority patent/US3874212A/en
Application filed by VI METALLURG filed Critical VI METALLURG
Priority to FR7338861A priority patent/FR2249719B1/fr
Publication of FR2249719A1 publication Critical patent/FR2249719A1/fr
Application granted granted Critical
Publication of FR2249719B1 publication Critical patent/FR2249719B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
    • B21B21/005—Pilgrim-step tube-rolling, i.e. pilger mills with reciprocating stand, e.g. driving the stand
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/43—Conversion of monochrome picture signals to colour picture signals for colour picture display
FR7338861A 1955-07-29 1973-10-31 Expired FR2249719B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US525146A US2874212A (en) 1955-07-29 1955-07-29 Generator of color images from monochrome television signals
DE2349757A DE2349757C3 (de) 1973-10-03 1973-10-03 Rohrkaltwalzverfahren und Rohrkaltwalzwerk zur Durchführung des Verfahrens
US403622A US3874212A (en) 1973-10-03 1973-10-04 Tube cold rolling method
FR7338861A FR2249719B1 (fr) 1973-10-03 1973-10-31

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2349757A DE2349757C3 (de) 1973-10-03 1973-10-03 Rohrkaltwalzverfahren und Rohrkaltwalzwerk zur Durchführung des Verfahrens
US403622A US3874212A (en) 1973-10-03 1973-10-04 Tube cold rolling method
FR7338861A FR2249719B1 (fr) 1973-10-03 1973-10-31

Publications (2)

Publication Number Publication Date
FR2249719A1 FR2249719A1 (fr) 1975-05-30
FR2249719B1 true FR2249719B1 (fr) 1976-11-19

Family

ID=27185545

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7338861A Expired FR2249719B1 (fr) 1955-07-29 1973-10-31

Country Status (3)

Country Link
US (1) US3874212A (fr)
DE (1) DE2349757C3 (fr)
FR (1) FR2249719B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1565436A (en) * 1977-10-10 1980-04-23 Gni I Pi Splav I Obrabot Tsvet Pilger rolling of tubes
US4255970A (en) * 1978-12-13 1981-03-17 Pottelberg Gaston C Van Barometer mechanism
DE3826120A1 (de) * 1988-08-01 1990-02-08 Kabelmetal Ag Vorrichtung zum pilgerwalzen von rohren
DE19527795C2 (de) * 1995-07-19 1999-11-18 Mannesmann Ag Rohrkaltwalzwerk
RU2156174C2 (ru) * 1998-12-25 2000-09-20 Открытое акционерное общество "Чепецкий механический завод" Калибровка инструмента для холодной прокатки труб
CN102548677B (zh) * 2009-09-30 2014-05-14 新日铁住金株式会社 拉回式芯棒式无缝管轧机及管材的轧制方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE155227C (fr) *
DE495246C (de) * 1928-06-26 1930-04-04 Mannesmann Ag Verfahren zum Glaett- und Masswalzen von Rohren an Pilgerschrittwalzwerken
DE604909C (de) * 1932-01-01 1934-11-02 Hirsch Verfahren zum Auswalzen von Rohren auf Pilgerschrittwalzwerken
US2161065A (en) * 1936-12-02 1939-06-06 Frank R Krause Apparatus for reducing tubular blanks
DE891532C (de) * 1943-05-04 1953-09-28 Wieland Werke Ag Verfahren und Vorrichtung zum Herstellen kaltgepilgerter metallischer Hohlwerkstuecke
FR1228595A (fr) * 1958-06-06 1960-08-31

Also Published As

Publication number Publication date
DE2349757B2 (de) 1980-11-20
DE2349757A1 (de) 1975-04-17
DE2349757C3 (de) 1981-07-23
US3874212A (en) 1975-04-01
FR2249719A1 (fr) 1975-05-30

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Legal Events

Date Code Title Description
ST Notification of lapse