FR1484272A - mine prop for remote-controlled support frames - Google Patents

mine prop for remote-controlled support frames

Info

Publication number
FR1484272A
FR1484272A FR66391A FR66391A FR1484272A FR 1484272 A FR1484272 A FR 1484272A FR 66391 A FR66391 A FR 66391A FR 66391 A FR66391 A FR 66391A FR 1484272 A FR1484272 A FR 1484272A
Authority
FR
France
Prior art keywords
remote
support frames
controlled support
mine prop
prop
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
FR66391A
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.)
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
Priority claimed from DEG44042A external-priority patent/DE1215634B/en
Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Priority to FR66391A priority Critical patent/FR1484272A/en
Application granted granted Critical
Publication of FR1484272A publication Critical patent/FR1484272A/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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/60—Devices for withdrawing props or chocks
    • E21D15/603—Devices for withdrawing props or chocks by means of hydraulic 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)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
FR66391A 1965-07-01 1966-06-22 mine prop for remote-controlled support frames Expired FR1484272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR66391A FR1484272A (en) 1965-07-01 1966-06-22 mine prop for remote-controlled support frames

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG44042A DE1215634B (en) 1965-07-01 1965-07-01 Pit stamp for remote-controlled support frames
FR66391A FR1484272A (en) 1965-07-01 1966-06-22 mine prop for remote-controlled support frames

Publications (1)

Publication Number Publication Date
FR1484272A true FR1484272A (en) 1967-06-09

Family

ID=25978720

Family Applications (1)

Application Number Title Priority Date Filing Date
FR66391A Expired FR1484272A (en) 1965-07-01 1966-06-22 mine prop for remote-controlled support frames

Country Status (1)

Country Link
FR (1) FR1484272A (en)

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