ZA85838B - Hydraulic valve control apparatus - Google Patents

Hydraulic valve control apparatus

Info

Publication number
ZA85838B
ZA85838B ZA85838A ZA85838A ZA85838B ZA 85838 B ZA85838 B ZA 85838B ZA 85838 A ZA85838 A ZA 85838A ZA 85838 A ZA85838 A ZA 85838A ZA 85838 B ZA85838 B ZA 85838B
Authority
ZA
South Africa
Prior art keywords
control apparatus
valve control
hydraulic valve
hydraulic
valve
Prior art date
Application number
ZA85838A
Other languages
English (en)
Inventor
Karl Krieger
Werner Reinelt
Original Assignee
Hemscheidt Maschf Hermann
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 Hemscheidt Maschf Hermann filed Critical Hemscheidt Maschf Hermann
Publication of ZA85838B publication Critical patent/ZA85838B/xx

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)
  • Fluid-Pressure Circuits (AREA)
  • Mechanical Control Devices (AREA)
ZA85838A 1984-02-08 1985-02-04 Hydraulic valve control apparatus ZA85838B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3404302A DE3404302C1 (de) 1984-02-08 1984-02-08 Steuervorrichtung fuer ein hydraulisches Schreitausbaugestell

Publications (1)

Publication Number Publication Date
ZA85838B true ZA85838B (en) 1985-09-25

Family

ID=6227038

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA85838A ZA85838B (en) 1984-02-08 1985-02-04 Hydraulic valve control apparatus

Country Status (6)

Country Link
US (1) US4676698A (cs)
CS (1) CS264116B2 (cs)
DE (1) DE3404302C1 (cs)
GB (1) GB2153978B (cs)
HU (1) HU191014B (cs)
ZA (1) ZA85838B (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4954617A (en) * 1986-07-07 1990-09-04 Trustees Of Dartmouth College Monoclonal antibodies to FC receptors for immunoglobulin G on human mononuclear phagocytes
US7472914B2 (en) * 2005-02-28 2009-01-06 Anderson Brian K Suspension system
DE102007058330C5 (de) * 2007-12-04 2014-05-08 Sartorius Lab Instruments Gmbh & Co. Kg Waage

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277786B (de) * 1958-09-18 1968-09-19 Bosch Gmbh Robert Steuergeraet fuer hydraulische Grubenausbaue
GB1023125A (en) * 1963-07-22 1966-03-16 Dowty Mining Equipment Ltd Mining apparatus
DE1201286B (de) * 1965-01-21 1965-09-23 Gewerk Eisenhuette Westfalia Rueckbarer hydraulischer Strebausbau
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
DE1277787B (de) * 1967-03-30 1968-09-19 Bergwerksverband Gmbh Einrichtung zur Zeitplansteuerung von hydraulischem Grubenausbau
BE794193A (fr) * 1972-03-16 1973-05-16 Gewerk Eisenhuette Westfalia Systeme de commande sequentielle pour le ripage automatique d'un groupe d'elements de soutenement
US3967534A (en) * 1974-10-25 1976-07-06 Caterpillar Tractor Co. Hydraulic control system with sequence hydraulic jacks
DE3012291A1 (de) * 1980-03-29 1981-10-15 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Ansteuerventilvorrichtung, insbesondere fuer untertaegige ausbausteuerung
DE3212747A1 (de) * 1982-04-06 1983-10-06 Gewerk Eisenhuette Westfalia Einrichtung zur hubsteuerung einer zylinddergruppe eines hydraulischen ausbausystems, insbesondere zum setzen der stempel einer schreitausbaueinheit
DE3214920A1 (de) * 1982-04-22 1983-10-27 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Steuerventil mit totmannschaltung, insbesondere fuer die ausbausteuerung

Also Published As

Publication number Publication date
CS84885A2 (en) 1988-09-16
GB2153978A (en) 1985-08-29
US4676698A (en) 1987-06-30
GB8502792D0 (en) 1985-03-06
DE3404302C1 (de) 1985-06-05
GB2153978B (en) 1987-02-18
CS264116B2 (en) 1989-06-13
HU191014B (en) 1986-12-28
HUT36559A (en) 1985-09-30

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