ZA77558B - Hydraulic cylinder control valve - Google Patents

Hydraulic cylinder control valve

Info

Publication number
ZA77558B
ZA77558B ZA770558A ZA77558A ZA77558B ZA 77558 B ZA77558 B ZA 77558B ZA 770558 A ZA770558 A ZA 770558A ZA 77558 A ZA77558 A ZA 77558A ZA 77558 B ZA77558 B ZA 77558B
Authority
ZA
South Africa
Prior art keywords
control valve
hydraulic cylinder
cylinder control
hydraulic
valve
Prior art date
Application number
ZA770558A
Inventor
H Schuermann
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 ZA77558B publication Critical patent/ZA77558B/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

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)
ZA770558A 1976-02-13 1977-02-01 Hydraulic cylinder control valve ZA77558B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762605758 DE2605758B1 (en) 1976-02-13 1976-02-13 CONTROL VALVE FOR HYDRAULICALLY STEPPING STRUCTURE

Publications (1)

Publication Number Publication Date
ZA77558B true ZA77558B (en) 1977-12-28

Family

ID=5969808

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA770558A ZA77558B (en) 1976-02-13 1977-02-01 Hydraulic cylinder control valve

Country Status (4)

Country Link
JP (1) JPS52148835A (en)
DE (1) DE2605758B1 (en)
FR (1) FR2341037A1 (en)
ZA (1) ZA77558B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851937C2 (en) * 1978-12-01 1986-05-28 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Control valve, especially for hydraulic support in mining operations
JPS593070U (en) * 1982-06-29 1984-01-10 株式会社藤井合金製作所 Dual channel simultaneous opening/closing device
DE3315313A1 (en) * 1983-04-27 1984-10-31 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen CONTROL VALVE WITH DEAD MAN CONTROL
DE3428652A1 (en) * 1984-08-03 1986-02-13 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Mechanically operable, hydraulic directional-control-valve combination
CN106838367B (en) * 2016-10-17 2018-05-08 东莞市倍益清环保科技有限公司 It is a kind of can 360 ° rotate and realize the faucet type water purifier devices of three kinds of water outlet forms
CN107489789A (en) * 2017-09-25 2017-12-19 鸿大智能机械有限公司 Hard sealing low discharge reversal valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1400568A1 (en) * 1960-03-24 1969-02-06 Aurora Corp Valve device
DE1920858A1 (en) * 1969-04-24 1970-11-19 Gewerk Eisenhuette Westfalia Equalization control valve device

Also Published As

Publication number Publication date
JPS52148835A (en) 1977-12-10
DE2605758B1 (en) 1977-07-21
FR2341037A1 (en) 1977-09-09

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