FR1505297A - Method for advancing a movable hydraulic support for underground mining operations and device for its implementation - Google Patents

Method for advancing a movable hydraulic support for underground mining operations and device for its implementation

Info

Publication number
FR1505297A
FR1505297A FR88392A FR88392A FR1505297A FR 1505297 A FR1505297 A FR 1505297A FR 88392 A FR88392 A FR 88392A FR 88392 A FR88392 A FR 88392A FR 1505297 A FR1505297 A FR 1505297A
Authority
FR
France
Prior art keywords
advancing
implementation
hydraulic support
underground mining
mining operations
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
FR88392A
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.)
Gullick Ltd
Original Assignee
Gullick 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
Application filed by Gullick Ltd filed Critical Gullick Ltd
Application granted granted Critical
Publication of FR1505297A publication Critical patent/FR1505297A/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

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)
  • Fluid-Pressure Circuits (AREA)
  • Framework For Endless Conveyors (AREA)
FR88392A 1965-12-22 1966-12-21 Method for advancing a movable hydraulic support for underground mining operations and device for its implementation Expired FR1505297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0085095 1965-12-22

Publications (1)

Publication Number Publication Date
FR1505297A true FR1505297A (en) 1967-12-08

Family

ID=6982747

Family Applications (1)

Application Number Title Priority Date Filing Date
FR88392A Expired FR1505297A (en) 1965-12-22 1966-12-21 Method for advancing a movable hydraulic support for underground mining operations and device for its implementation

Country Status (4)

Country Link
US (1) US3395616A (en)
AT (1) AT274711B (en)
FR (1) FR1505297A (en)
GB (1) GB1108710A (en)

Also Published As

Publication number Publication date
AT274711B (en) 1969-09-25
US3395616A (en) 1968-08-06
GB1108710A (en) 1968-04-03

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