FR1271386A - Roof supports for mining galleries - Google Patents

Roof supports for mining galleries

Info

Publication number
FR1271386A
FR1271386A FR841010A FR841010A FR1271386A FR 1271386 A FR1271386 A FR 1271386A FR 841010 A FR841010 A FR 841010A FR 841010 A FR841010 A FR 841010A FR 1271386 A FR1271386 A FR 1271386A
Authority
FR
France
Prior art keywords
roof supports
mining galleries
galleries
mining
roof
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
FR841010A
Other languages
French (fr)
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 claimed from GB34500/59A external-priority patent/GB967164A/en
Application filed by Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to FR841010A priority Critical patent/FR1271386A/en
Application granted granted Critical
Publication of FR1271386A publication Critical patent/FR1271386A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006Mine 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
    • E21D23/0073Mine 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
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16Hydraulic 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR841010A 1959-10-12 1960-10-12 Roof supports for mining galleries Expired FR1271386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR841010A FR1271386A (en) 1959-10-12 1960-10-12 Roof supports for mining galleries

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB34500/59A GB967164A (en) 1959-10-12 1959-10-12 Mine roof support systems
FR841010A FR1271386A (en) 1959-10-12 1960-10-12 Roof supports for mining galleries

Publications (1)

Publication Number Publication Date
FR1271386A true FR1271386A (en) 1961-09-08

Family

ID=26187791

Family Applications (1)

Application Number Title Priority Date Filing Date
FR841010A Expired FR1271386A (en) 1959-10-12 1960-10-12 Roof supports for mining galleries

Country Status (1)

Country Link
FR (1) FR1271386A (en)

Cited By (10)

* 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
DE1237041B (en) * 1964-10-12 1967-03-23 Dowty Electrics Ltd Device for displaying the advance process of a migrating longwall structure
DE1254563B (en) * 1963-09-03 1967-11-23 Dowty Mining Equipment Ltd Wandering longwall mining
DE1254564B (en) * 1964-05-15 1967-11-23 Dowty Mining Equipment Ltd Wandering longwall mining
DE1255613B (en) * 1963-04-22 1967-12-07 Dowty Mining Equipment Ltd Wandering longwall mining
DE1258371B (en) * 1964-02-04 1968-01-11 Gullick Ltd Migrating hydraulic longwall mining
DE1279582B (en) * 1964-01-14 1968-10-10 Dowty Mining Equipment Ltd Wandering longwall mining
DE1280786B (en) * 1964-02-07 1968-10-24 Gullick Ltd Wandering longwall mining for underground mining operations
DE1292605B (en) * 1964-03-20 1969-04-17 Coal Industry Patents Ltd Wandering pit support
DE1608492B1 (en) * 1963-04-04 1970-06-18 Dowty Technical Dev Ltd Control device for a longwall expansion

Cited By (11)

* 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
DE1608492B1 (en) * 1963-04-04 1970-06-18 Dowty Technical Dev Ltd Control device for a longwall expansion
DE1255613B (en) * 1963-04-22 1967-12-07 Dowty Mining Equipment Ltd Wandering longwall mining
DE1254563B (en) * 1963-09-03 1967-11-23 Dowty Mining Equipment Ltd Wandering longwall mining
DE1279582B (en) * 1964-01-14 1968-10-10 Dowty Mining Equipment Ltd Wandering longwall mining
DE1258371B (en) * 1964-02-04 1968-01-11 Gullick Ltd Migrating hydraulic longwall mining
DE1280786B (en) * 1964-02-07 1968-10-24 Gullick Ltd Wandering longwall mining for underground mining operations
DE1292605B (en) * 1964-03-20 1969-04-17 Coal Industry Patents Ltd Wandering pit support
DE1292605C2 (en) * 1964-03-20 1973-05-17 Coal Industry Patents Ltd Wandering pit support
DE1254564B (en) * 1964-05-15 1967-11-23 Dowty Mining Equipment Ltd Wandering longwall mining
DE1237041B (en) * 1964-10-12 1967-03-23 Dowty Electrics Ltd Device for displaying the advance process of a migrating longwall structure

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