ZA832626B - Hydraulic control devices for use with mining apparatus - Google Patents

Hydraulic control devices for use with mining apparatus

Info

Publication number
ZA832626B
ZA832626B ZA832626A ZA832626A ZA832626B ZA 832626 B ZA832626 B ZA 832626B ZA 832626 A ZA832626 A ZA 832626A ZA 832626 A ZA832626 A ZA 832626A ZA 832626 B ZA832626 B ZA 832626B
Authority
ZA
South Africa
Prior art keywords
control devices
hydraulic control
mining apparatus
mining
hydraulic
Prior art date
Application number
ZA832626A
Inventor
Walter Weirich
Willy Kussel
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 ZA832626B publication Critical patent/ZA832626B/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)
ZA832626A 1982-04-22 1983-04-14 Hydraulic control devices for use with mining apparatus ZA832626B (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
ZA832626B true ZA832626B (en) 1983-12-28

Family

ID=6161595

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA832626A ZA832626B (en) 1982-04-22 1983-04-14 Hydraulic control devices for use with mining apparatus

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
GB2118689B (en) 1985-07-24
DE3214920A1 (en) 1983-10-27
DE3214920C2 (en) 1990-08-30
ES8402396A1 (en) 1984-01-16
AU554692B2 (en) 1986-08-28
FR2525723A1 (en) 1983-10-28
GB2118689A (en) 1983-11-02
AU1343683A (en) 1983-10-27
BE896506A (en) 1983-08-16
GB8310412D0 (en) 1983-05-25
FR2525723B1 (en) 1987-04-17
ES521766A0 (en) 1984-01-16

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