NL6600841A - - Google Patents

Info

Publication number
NL6600841A
NL6600841A NL6600841A NL6600841A NL6600841A NL 6600841 A NL6600841 A NL 6600841A NL 6600841 A NL6600841 A NL 6600841A NL 6600841 A NL6600841 A NL 6600841A NL 6600841 A NL6600841 A NL 6600841A
Authority
NL
Netherlands
Application number
NL6600841A
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 filed Critical
Publication of NL6600841A publication Critical patent/NL6600841A/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
    • E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
    • 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
    • E21D23/12—Control, e.g. using remote 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
    • E21D23/12—Control, e.g. using remote control
    • E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
    • E21D23/148—Wireless transmission of signals or commands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H01H43/16—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after a predetermined plurality of cycles of operation

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)
  • Computer Networks & Wireless Communication (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Selective Calling Equipment (AREA)
  • Earth Drilling (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
NL6600841A 1965-01-21 1966-01-21 NL6600841A (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG0042622 1965-01-21
DEG42952A DE1201286B (de) 1965-01-21 1965-02-27 Rueckbarer hydraulischer Strebausbau

Publications (1)

Publication Number Publication Date
NL6600841A true NL6600841A (sv) 1966-07-22

Family

ID=25978659

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6600841A NL6600841A (sv) 1965-01-21 1966-01-21

Country Status (6)

Country Link
US (1) US3434389A (sv)
BE (1) BE675336A (sv)
DE (1) DE1201286B (sv)
FR (1) FR1464327A (sv)
GB (1) GB1111605A (sv)
NL (1) NL6600841A (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1583072B1 (de) * 1967-10-18 1970-01-15 Bergwerksverband Gmbh Schaltung,insbesondere zum Steuern von Ausbaurahmen oder -boecken des hydraulischen Strebausbaus im Untertagebergbau
GB1295079A (sv) * 1969-05-28 1972-11-01
SU797601A3 (ru) * 1970-08-04 1981-01-15 Геверкшафт Эйзенхютте Вестфалия (Фирма) Гидравлическое устройство дл управ-лЕНи пЕРЕдВигАЕМыХ СЕКций КРЕпи ВшАХТАХ
DE2250296C3 (de) * 1972-10-13 1978-03-16 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Messerschild-Vortriebseinrichtung zum Vortrieb unterirdischer Hohlräume, wie insbesondere Tunnel, Stollen u.dgl
GB1571503A (en) * 1976-01-24 1980-07-16 Dowty Mining Equipment Ltd Longwall mining apparatus
GB2142074B (en) * 1983-06-21 1987-04-23 Dobson Park Ind Control of mine roof supports
GB2153971B (en) * 1984-02-08 1988-01-13 Dobson Park Ind Valve assembly
DE3404302C1 (de) * 1984-02-08 1985-06-05 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Steuervorrichtung fuer ein hydraulisches Schreitausbaugestell
CN101864975B (zh) * 2010-06-04 2012-06-27 中煤北京煤矿机械有限责任公司 后架变前架式连续支护超前支架及其移架方法
CN101871354A (zh) * 2010-06-04 2010-10-27 中煤北京煤矿机械有限责任公司 大步距连续支护式超前支架及其移架方法
DE102011012655B4 (de) * 2011-02-28 2015-09-24 Kruno Pranjic Verfahren zum Betrieb eines untertägigen hydraulischen Schreitausbaus
CN103114867B (zh) * 2013-02-22 2015-07-22 广州日滨科技发展有限公司 综采工作面液压支架和刮板输送机自动调直方法及系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
GB1111605A (en) 1968-05-01
US3434389A (en) 1969-03-25
DE1608504B1 (de) 1970-09-24
DE1201286B (de) 1965-09-23
FR1464327A (fr) 1966-12-30
BE675336A (sv) 1966-07-19

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