BE896506A - CONTROL VALVE WITH DEAD MAN CIRCUIT, PARTICULARLY FOR CONTROLLING SUPPORTS - Google Patents

CONTROL VALVE WITH DEAD MAN CIRCUIT, PARTICULARLY FOR CONTROLLING SUPPORTS

Info

Publication number
BE896506A
BE896506A BE0/210586A BE210586A BE896506A BE 896506 A BE896506 A BE 896506A BE 0/210586 A BE0/210586 A BE 0/210586A BE 210586 A BE210586 A BE 210586A BE 896506 A BE896506 A BE 896506A
Authority
BE
Belgium
Prior art keywords
control valve
dead man
man circuit
supports
controlling
Prior art date
Application number
BE0/210586A
Other languages
French (fr)
Original Assignee
Gewerk Eisenhuette Westfalia
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 Gewerk Eisenhuette Westfalia filed Critical Gewerk Eisenhuette Westfalia
Publication of BE896506A publication Critical patent/BE896506A/en

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)
  • Valve Device For Special Equipments (AREA)
BE0/210586A 1982-04-22 1983-04-19 CONTROL VALVE WITH DEAD MAN CIRCUIT, PARTICULARLY FOR CONTROLLING SUPPORTS BE896506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823214920 DE3214920A1 (en) 1982-04-22 1982-04-22 CONTROL VALVE WITH DEAD MAN, IN PARTICULAR FOR THE REMOVAL CONTROL

Publications (1)

Publication Number Publication Date
BE896506A true BE896506A (en) 1983-08-16

Family

ID=6161595

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/210586A BE896506A (en) 1982-04-22 1983-04-19 CONTROL VALVE WITH DEAD MAN CIRCUIT, PARTICULARLY FOR CONTROLLING SUPPORTS

Country Status (7)

Country Link
AU (1) AU554692B2 (en)
BE (1) BE896506A (en)
DE (1) DE3214920A1 (en)
ES (1) ES521766A0 (en)
FR (1) FR2525723B1 (en)
GB (1) GB2118689B (en)
ZA (1) ZA832626B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404302C1 (en) * 1984-02-08 1985-06-05 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Control device for a hydraulic stepping frame
JPH07103938B2 (en) * 1990-01-31 1995-11-08 株式会社コスメック Check valve with valve opening function

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1548341A (en) * 1966-07-05 1968-12-06
DE2851937C2 (en) * 1978-12-01 1986-05-28 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Control valve, especially for hydraulic support in mining operations

Also Published As

Publication number Publication date
FR2525723B1 (en) 1987-04-17
AU1343683A (en) 1983-10-27
DE3214920C2 (en) 1990-08-30
ES8402396A1 (en) 1984-01-16
GB2118689A (en) 1983-11-02
DE3214920A1 (en) 1983-10-27
FR2525723A1 (en) 1983-10-28
GB8310412D0 (en) 1983-05-25
GB2118689B (en) 1985-07-24
ZA832626B (en) 1983-12-28
ES521766A0 (en) 1984-01-16
AU554692B2 (en) 1986-08-28

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GEWERKSCHAFT EISENHUTTE WESTFALIA

Effective date: 19900430