ZA802130B - Impovements in hydraulic control apparatus for controlling the operation of mine roof support props - Google Patents

Impovements in hydraulic control apparatus for controlling the operation of mine roof support props

Info

Publication number
ZA802130B
ZA802130B ZA00802130A ZA802130A ZA802130B ZA 802130 B ZA802130 B ZA 802130B ZA 00802130 A ZA00802130 A ZA 00802130A ZA 802130 A ZA802130 A ZA 802130A ZA 802130 B ZA802130 B ZA 802130B
Authority
ZA
South Africa
Prior art keywords
impovements
controlling
control apparatus
hydraulic control
roof support
Prior art date
Application number
ZA00802130A
Other languages
English (en)
Inventor
H Grisebach
W Weirich
K Beckmann
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 ZA802130B publication Critical patent/ZA802130B/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
    • 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)
  • Safety Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Presses (AREA)
ZA00802130A 1979-04-12 1980-04-10 Impovements in hydraulic control apparatus for controlling the operation of mine roof support props ZA802130B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792914884 DE2914884A1 (de) 1979-04-12 1979-04-12 Einrichtung zum setzen hydraulischer grubenstempel mit hoher und gleichmaessiger setzkraft

Publications (1)

Publication Number Publication Date
ZA802130B true ZA802130B (en) 1981-05-27

Family

ID=6068183

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00802130A ZA802130B (en) 1979-04-12 1980-04-10 Impovements in hydraulic control apparatus for controlling the operation of mine roof support props

Country Status (8)

Country Link
AU (1) AU533562B2 (no)
BE (1) BE882725A (no)
CA (1) CA1138303A (no)
DE (1) DE2914884A1 (no)
FR (1) FR2455673B2 (no)
GB (2) GB2096223B (no)
PL (1) PL125322B1 (no)
ZA (1) ZA802130B (no)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128279A1 (de) * 1981-07-17 1983-02-03 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Nachsetzsteuerung fuer einen hydraulischen stempelausbau sowie hydraulisch ansteuerbares rueckschlagventil
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
DE3301674C1 (de) * 1983-01-20 1984-01-05 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Steuerung fuer hydraulische Stempel von Schreitausbaugestellen
GB2137314B (en) * 1983-03-26 1986-07-23 Dobson Park Ind Valve for mine support
PL146170B1 (en) * 1984-12-10 1989-01-31 Ct Kt Maszyn Gorniczych Komag Apparatus for changing curability and mineablity of a mineral deposit
DE3546278C1 (de) * 1985-12-28 1987-07-02 Bergwerksverband Gmbh Nachsetzsteuerung fuer den Strebausbau
DE3931625C1 (en) * 1989-09-22 1990-08-09 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal, De Underground mine roof support - maintains constant residual pressure during advance
GB9009859D0 (en) * 1990-05-02 1990-06-27 Meco Mining Equip A mine roof support
GB2274325B (en) * 1993-01-13 1996-04-03 Meco Mining Equip A yield valve
CN103775115A (zh) * 2014-01-21 2014-05-07 焦作欣扬程煤矿设备有限公司 侧摆移位立式压缸机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1024167A (en) * 1964-02-14 1966-03-30 Dowty Mining Equipment Ltd Roof support assembly suitable for use in mines
GB1135942A (en) * 1964-12-07 1968-12-11 Groetschel Karl Maria Improvements relating to roof supports for mine workings
GB1180578A (en) * 1967-03-06 1970-02-04 Podmoskovny G Pk I Exi Gornogo Advancing Mine Roof Supports
DE1290109B (de) * 1967-10-21 1969-03-06 Gewerk Eisenhuette Westfalia Stempel fuer den Ausbau bzw. zur Abspannung im Streb/Streckenuebergang
DE1750834A1 (de) * 1968-06-10 1971-04-29 Gewerk Eisenhuette Westfalia UEberdruckventilpatrone mit Kolben-O-Ring-Dichtung
DE2146502C3 (de) * 1971-09-17 1982-04-29 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Ventilanordnung zum Setzen hydraulischer Grubenstempel mit hoher Setzkraft
DE2749312C2 (de) * 1977-11-04 1984-12-20 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Steuereinrichtung mit Nachsetzautomatik für einen hydraulischen Stempelausbau
DE2803283C2 (de) * 1978-01-26 1992-12-10 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Überdruckventil für hydraulische Grubenstempel

Also Published As

Publication number Publication date
DE2914884A1 (de) 1980-10-30
FR2455673B2 (fr) 1987-05-07
CA1138303A (en) 1982-12-28
BE882725A (fr) 1980-07-31
DE2914884C2 (no) 1987-05-14
AU533562B2 (en) 1983-12-01
GB2047316B (en) 1983-04-20
GB2096223B (en) 1983-05-11
GB2047316A (en) 1980-11-26
FR2455673A2 (fr) 1980-11-28
GB2096223A (en) 1982-10-13
AU5710080A (en) 1980-10-16
PL125322B1 (en) 1983-04-30
PL223346A1 (no) 1981-01-30

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