FR2123240A2 - - Google Patents

Info

Publication number
FR2123240A2
FR2123240A2 FR7121030A FR7121030A FR2123240A2 FR 2123240 A2 FR2123240 A2 FR 2123240A2 FR 7121030 A FR7121030 A FR 7121030A FR 7121030 A FR7121030 A FR 7121030A FR 2123240 A2 FR2123240 A2 FR 2123240A2
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.)
Granted
Application number
FR7121030A
Other languages
French (fr)
Other versions
FR2123240B2 (enrdf_load_stackoverflow
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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
Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of FR2123240A2 publication Critical patent/FR2123240A2/fr
Application granted granted Critical
Publication of FR2123240B2 publication Critical patent/FR2123240B2/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/26—Hydraulic or pneumatic control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
FR7121030A 1970-10-10 1971-06-10 Expired FR2123240B2 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702049869 DE2049869C3 (de) 1970-10-10 1970-10-10 Steuergerät, insbesondere für hydraulische Grubenausbaugespanne

Publications (2)

Publication Number Publication Date
FR2123240A2 true FR2123240A2 (enrdf_load_stackoverflow) 1972-09-08
FR2123240B2 FR2123240B2 (enrdf_load_stackoverflow) 1976-05-28

Family

ID=5784768

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7121030A Expired FR2123240B2 (enrdf_load_stackoverflow) 1970-10-10 1971-06-10

Country Status (4)

Country Link
JP (1) JPS559589B1 (enrdf_load_stackoverflow)
CS (1) CS212728B2 (enrdf_load_stackoverflow)
DE (1) DE2049869C3 (enrdf_load_stackoverflow)
FR (1) FR2123240B2 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640185C3 (de) * 1976-09-07 1986-07-10 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Mehrfachsteuergerät für hydraulischen Schreitausbau
DE2851937C2 (de) 1978-12-01 1986-05-28 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Steuerventil, insbesondere für einen hydraulischen Schreitausbau in Bergbaubetrieben
DE19844860A1 (de) * 1998-09-30 2000-04-06 Mannesmann Rexroth Ag Handbetätigtes Steuergerät, insbesondere zur hydraulischen Betätigung von hydraulischen Ventilen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1022816A (en) * 1964-01-01 1966-03-16 Taylair Control Ltd Improvements relating to fluid control valve assemblies
FR1548341A (enrdf_load_stackoverflow) * 1966-07-05 1968-12-06

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499318A (en) * 1943-09-17 1950-02-28 Jan Jongerius N V Liquid cock or valve
GB727804A (en) * 1952-03-15 1955-04-06 Electraulic Presses Ltd Improvements in and relating to hydraulic systems and control valves therefor
US2844167A (en) * 1954-09-17 1958-07-22 Donald G Griswold Pilot valve construction
DE1217907B (de) * 1958-12-20 1966-06-02 Bosch Gmbh Robert Anwendung einer Schalteinrichtung mit mehreren Armaturen
FR1302642A (fr) * 1961-07-21 1962-08-31 Entpr D Equipements Mecaniques Dispositif de commande hydraulique applicable notamment aux écluses
JPS4423106Y1 (enrdf_load_stackoverflow) * 1964-02-02 1969-09-30
DE1550310C3 (de) * 1966-09-17 1974-01-31 Gewerkschaft Eisenhuette Westfalia, 4628 Altluenen Steuerventil, insbesondere für Grubenausbaugespanne
DE1483931C3 (de) * 1966-11-09 1974-03-14 Kloeckner-Werke Ag, 4100 Duisburg Schaltgerät zur Steuerung des hydraulischen Strebausbaus und/oder der Rückeinrichtung eines Strebförderers
GB1261129A (en) * 1969-10-30 1972-01-19 Gullick Dobson Ltd Improvements in or relating to fluid-flow control means

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1022816A (en) * 1964-01-01 1966-03-16 Taylair Control Ltd Improvements relating to fluid control valve assemblies
FR1548341A (enrdf_load_stackoverflow) * 1966-07-05 1968-12-06

Also Published As

Publication number Publication date
DE2049869B2 (de) 1978-06-01
DE2049869A1 (de) 1972-04-13
JPS559589B1 (enrdf_load_stackoverflow) 1980-03-11
CS212728B2 (cs) 1982-03-26
FR2123240B2 (enrdf_load_stackoverflow) 1976-05-28
DE2049869C3 (de) 1984-11-08

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