GB2118689B - Improvements in hydraulic control devices for use with mining apparatus - Google Patents

Improvements in hydraulic control devices for use with mining apparatus

Info

Publication number
GB2118689B
GB2118689B GB08310412A GB8310412A GB2118689B GB 2118689 B GB2118689 B GB 2118689B GB 08310412 A GB08310412 A GB 08310412A GB 8310412 A GB8310412 A GB 8310412A GB 2118689 B GB2118689 B GB 2118689B
Authority
GB
United Kingdom
Prior art keywords
control devices
hydraulic control
mining apparatus
mining
hydraulic
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB08310412A
Other languages
English (en)
Other versions
GB8310412D0 (en
GB2118689A (en
Inventor
Walter Weirich
Willy Kussel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of GB8310412D0 publication Critical patent/GB8310412D0/en
Publication of GB2118689A publication Critical patent/GB2118689A/en
Application granted granted Critical
Publication of GB2118689B publication Critical patent/GB2118689B/en
Expired legal-status Critical Current

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)
GB08310412A 1982-04-22 1983-04-18 Improvements in hydraulic control devices for use with mining apparatus Expired GB2118689B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823214920 DE3214920A1 (de) 1982-04-22 1982-04-22 Steuerventil mit totmannschaltung, insbesondere fuer die ausbausteuerung

Publications (3)

Publication Number Publication Date
GB8310412D0 GB8310412D0 (en) 1983-05-25
GB2118689A GB2118689A (en) 1983-11-02
GB2118689B true GB2118689B (en) 1985-07-24

Family

ID=6161595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08310412A Expired GB2118689B (en) 1982-04-22 1983-04-18 Improvements in hydraulic control devices for use with mining apparatus

Country Status (7)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404302C1 (de) * 1984-02-08 1985-06-05 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Steuervorrichtung fuer ein hydraulisches Schreitausbaugestell
JPH07103938B2 (ja) * 1990-01-31 1995-11-08 株式会社コスメック 開弁機能付き逆止弁

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1137337A (en) * 1966-07-05 1968-12-18 Gewerk Eisenhuette Westfalia Improvements in or relating to apparatus for controlling the distribution of hydraulic liquid
DE2851937C2 (de) * 1978-12-01 1986-05-28 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Steuerventil, insbesondere für einen hydraulischen Schreitausbau in Bergbaubetrieben

Also Published As

Publication number Publication date
FR2525723B1 (fr) 1987-04-17
BE896506A (fr) 1983-08-16
DE3214920A1 (de) 1983-10-27
AU554692B2 (en) 1986-08-28
GB8310412D0 (en) 1983-05-25
GB2118689A (en) 1983-11-02
ES8402396A1 (es) 1984-01-16
DE3214920C2 (enrdf_load_stackoverflow) 1990-08-30
ES521766A0 (es) 1984-01-16
AU1343683A (en) 1983-10-27
ZA832626B (en) 1983-12-28
FR2525723A1 (fr) 1983-10-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee