GB1420862A - Control systems for controlling the shifting of mineral mining apparatus - Google Patents

Control systems for controlling the shifting of mineral mining apparatus

Info

Publication number
GB1420862A
GB1420862A GB1261473A GB1261473A GB1420862A GB 1420862 A GB1420862 A GB 1420862A GB 1261473 A GB1261473 A GB 1261473A GB 1261473 A GB1261473 A GB 1261473A GB 1420862 A GB1420862 A GB 1420862A
Authority
GB
United Kingdom
Prior art keywords
conduit
shifting
disc
locking
rotated
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
GB1261473A
Other languages
English (en)
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 GB1420862A publication Critical patent/GB1420862A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members

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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Chain Conveyers (AREA)
GB1261473A 1972-03-16 1973-03-15 Control systems for controlling the shifting of mineral mining apparatus Expired GB1420862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2212686A DE2212686C3 (de) 1972-03-16 1972-03-16 Gruppenfolgesteuerung zum automatischen Rücken einer Ausbaugruppe

Publications (1)

Publication Number Publication Date
GB1420862A true GB1420862A (en) 1976-01-14

Family

ID=5839079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1261473A Expired GB1420862A (en) 1972-03-16 1973-03-15 Control systems for controlling the shifting of mineral mining apparatus

Country Status (5)

Country Link
US (1) US3906738A (de)
BE (1) BE794193A (de)
DE (1) DE2212686C3 (de)
FR (1) FR2175735B1 (de)
GB (1) GB1420862A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159671A (en) * 1974-08-20 1979-07-03 Allen Archelaius D Self-advancing mine roof supports
GB1531246A (en) * 1975-07-29 1978-11-08 Gullick Dobson Ltd Mine roof support control systems
DE2700829C2 (de) * 1977-01-11 1986-04-17 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulische Ausbausteuerung
JPS53114704A (en) * 1977-02-28 1978-10-06 Taiheiyo Eng Operating device of selfftravelling frame* etc*
DE2851937C2 (de) * 1978-12-01 1986-05-28 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Steuerventil, insbesondere für einen hydraulischen Schreitausbau in Bergbaubetrieben
GB2095425B (en) * 1981-02-25 1984-06-27 Dobson Park Ind Mine roof support control systems
DE3111875A1 (de) * 1981-03-26 1982-10-14 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Elektrohydraulische ausbausteuerung fuer untertaegige gewinnungsbetriebe
GB2142074B (en) * 1983-06-21 1987-04-23 Dobson Park Ind Control of mine roof supports
DE3404302C1 (de) * 1984-02-08 1985-06-05 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Steuervorrichtung fuer ein hydraulisches Schreitausbaugestell
DE3801593A1 (de) * 1988-01-21 1989-08-03 Hemscheidt Maschf Hermann Gruppensteuerung fuer hydraulischen schreitausbau
DE3824522A1 (de) * 1988-07-20 1990-01-25 Kloeckner Becorit Gmbh Verfahren zum ruecken eines strebausbaues
US5428959A (en) * 1994-08-01 1995-07-04 Illinois Tool Works Inc. Pneumatic control circuit
CN112524109A (zh) * 2020-12-02 2021-03-19 辽宁工程技术大学 一种液压支架四点起吊平衡的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548198A (en) * 1945-11-15 1951-04-10 Charles H Cosnett Dual control for the throttle and reversing means of pressure fluid engines
US2540710A (en) * 1947-08-21 1951-02-06 Westinghouse Air Brake Co Fluid pressure control apparatus
US2940428A (en) * 1954-08-10 1960-06-14 Bendix Aviat Corp Parallel hydraulic control system
GB961225A (en) * 1961-06-12 1964-06-17 Electro Hydraulics Ltd Hydraulically operated advancing roof support systems
GB959492A (en) * 1961-11-21 1964-06-03 Dowty Technical Developements Mining apparatus
GB1023827A (en) * 1963-06-21 1966-03-23 Dowty Mining Equipment Ltd Roof support assembly
DE1249796B (de) * 1963-09-06 1967-09-14

Also Published As

Publication number Publication date
DE2212686C3 (de) 1979-03-22
DE2212686A1 (de) 1973-09-20
FR2175735A1 (de) 1973-10-26
US3906738A (en) 1975-09-23
FR2175735B1 (de) 1976-08-27
BE794193A (fr) 1973-05-16
DE2212686B2 (de) 1978-07-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee