FR1083882A - Extension for mine prop - Google Patents

Extension for mine prop

Info

Publication number
FR1083882A
FR1083882A FR1083882DA FR1083882A FR 1083882 A FR1083882 A FR 1083882A FR 1083882D A FR1083882D A FR 1083882DA FR 1083882 A FR1083882 A FR 1083882A
Authority
FR
France
Prior art keywords
extension
mine prop
prop
mine
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
Other languages
French (fr)
Inventor
Jean-Marc Breschard
Michel Breschard
Jacques-Francois Michel
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
Application granted granted Critical
Publication of FR1083882A publication Critical patent/FR1083882A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/581—Devices for setting props or chocks in which the props are pre- loaded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR1083882D 1953-09-22 1953-09-22 Extension for mine prop Expired FR1083882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1083882T 1953-09-22

Publications (1)

Publication Number Publication Date
FR1083882A true FR1083882A (en) 1955-01-13

Family

ID=9611351

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1083882D Expired FR1083882A (en) 1953-09-22 1953-09-22 Extension for mine prop

Country Status (1)

Country Link
FR (1) FR1083882A (en)

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