GB967164A - Mine roof support systems - Google Patents

Mine roof support systems

Info

Publication number
GB967164A
GB967164A GB34500/59A GB3450059A GB967164A GB 967164 A GB967164 A GB 967164A GB 34500/59 A GB34500/59 A GB 34500/59A GB 3450059 A GB3450059 A GB 3450059A GB 967164 A GB967164 A GB 967164A
Authority
GB
United Kingdom
Prior art keywords
valve
props
ram
pressure
conduit
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
GB34500/59A
Other languages
English (en)
Inventor
John Dunbar Kibble
Morgan James Williams
Ronald George Penn
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
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
Priority to DENDAT1251256D priority Critical patent/DE1251256B/de
Priority to NL256743D priority patent/NL256743A/xx
Application filed by Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB34500/59A priority patent/GB967164A/en
Priority to US61210A priority patent/US3216201A/en
Priority to FR841010A priority patent/FR1271386A/fr
Publication of GB967164A publication Critical patent/GB967164A/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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
    • 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
    • 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)
GB34500/59A 1959-10-12 1959-10-12 Mine roof support systems Expired GB967164A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DENDAT1251256D DE1251256B (de) 1959-10-12 Wandernder Strebausbau
NL256743D NL256743A (enrdf_load_stackoverflow) 1959-10-12
GB34500/59A GB967164A (en) 1959-10-12 1959-10-12 Mine roof support systems
US61210A US3216201A (en) 1959-10-12 1960-10-07 Mine roof supports
FR841010A FR1271386A (fr) 1959-10-12 1960-10-12 Supports du toit des galeries de mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34500/59A GB967164A (en) 1959-10-12 1959-10-12 Mine roof support systems

Publications (1)

Publication Number Publication Date
GB967164A true GB967164A (en) 1964-08-19

Family

ID=10366423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34500/59A Expired GB967164A (en) 1959-10-12 1959-10-12 Mine roof support systems

Country Status (4)

Country Link
US (1) US3216201A (enrdf_load_stackoverflow)
DE (1) DE1251256B (enrdf_load_stackoverflow)
GB (1) GB967164A (enrdf_load_stackoverflow)
NL (1) NL256743A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259024A (en) * 1963-03-08 1966-07-05 Coal Industry Patents Ltd Mine roof support remote control systems
DE1258371B (de) * 1964-02-04 1968-01-11 Gullick Ltd Wandernder hydraulischer Strebausbau
DE1290505B (de) * 1967-03-30 1969-03-13 Bergwerksverband Gmbh Einrichtung zur Zeitplansteuerung von hydraulischem Grubenausbau
CN102635382A (zh) * 2011-02-12 2012-08-15 淮南矿业(集团)有限责任公司 煤矿悬移支架调架工具
US11512717B2 (en) * 2019-03-15 2022-11-29 Yanming Wei Digital-switching fluidic power supply and hydrostatic transmission with regenerative brake

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1016061A (en) * 1963-04-04 1966-01-05 Dowty Technical Dev Ltd Mine roof support
BE697578A (enrdf_load_stackoverflow) * 1966-05-14 1967-10-02
DE1583080A1 (de) * 1966-10-14 1970-04-23 Dowty Mining Equipment Ltd Grubendeckenausbau
US3505823A (en) * 1967-07-19 1970-04-14 Gunter Bell Hydraulic support systems for mine workings
US3601998A (en) * 1969-02-19 1971-08-31 Wild A G & Co Ltd Control of mine roof support assemblies
GB1261110A (en) * 1969-03-26 1972-01-19 Gullick Dobson Ltd Improvements in or relating to fluidic logic controlled hydraulic mine roof support systems
GB1571503A (en) * 1976-01-24 1980-07-16 Dowty Mining Equipment Ltd Longwall mining apparatus
AU8549282A (en) * 1981-07-16 1983-01-20 Dowty Mining Equipment Ltd. Hydraulically operated mine roof support
PL2378060T3 (pl) * 2010-04-16 2013-05-31 S A Armstrong Ltd Usprawnienia dotyczące układów hydraulicznych zasilania przodków ścianowych

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2301028A (en) * 1940-07-27 1942-11-03 Vickers Inc Power transmission
US2698517A (en) * 1952-05-21 1955-01-04 Kenneth F Witt Automatic means to control and reverse fluid-operated cylinder-and-piston units
GB781643A (en) * 1954-04-12 1957-08-21 Klockner Bergbau Victor Ickern Mobile system of mine roof support
GB823128A (en) * 1955-02-23 1959-11-04 Dowty Mining Equipment Ltd Improvements in and relating to mine roof support systems
FR1190532A (fr) * 1957-07-05 1959-10-13 Dobson Ltd W E & F Perfectionnements apportés aux supports de plafonds pour mines souterraines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259024A (en) * 1963-03-08 1966-07-05 Coal Industry Patents Ltd Mine roof support remote control systems
DE1258371B (de) * 1964-02-04 1968-01-11 Gullick Ltd Wandernder hydraulischer Strebausbau
DE1290505B (de) * 1967-03-30 1969-03-13 Bergwerksverband Gmbh Einrichtung zur Zeitplansteuerung von hydraulischem Grubenausbau
CN102635382A (zh) * 2011-02-12 2012-08-15 淮南矿业(集团)有限责任公司 煤矿悬移支架调架工具
US11512717B2 (en) * 2019-03-15 2022-11-29 Yanming Wei Digital-switching fluidic power supply and hydrostatic transmission with regenerative brake

Also Published As

Publication number Publication date
NL256743A (enrdf_load_stackoverflow)
DE1251256B (de) 1967-10-05
US3216201A (en) 1965-11-09

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