FR1067744A - advanced mine prop - Google Patents

advanced mine prop

Info

Publication number
FR1067744A
FR1067744A FR1067744DA FR1067744A FR 1067744 A FR1067744 A FR 1067744A FR 1067744D A FR1067744D A FR 1067744DA FR 1067744 A FR1067744 A FR 1067744A
Authority
FR
France
Prior art keywords
mine prop
advanced mine
advanced
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
John Handley
Jack Nixon Browne
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 FR1067744A publication Critical patent/FR1067744A/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
    • E21D15/14—Telescopic props
    • E21D15/46—Telescopic props with load-measuring devices; with alarm devices

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)
FR1067744D 1951-12-17 1952-12-16 advanced mine prop Expired FR1067744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1067744X 1951-12-17

Publications (1)

Publication Number Publication Date
FR1067744A true FR1067744A (en) 1954-06-17

Family

ID=10871779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1067744D Expired FR1067744A (en) 1951-12-17 1952-12-16 advanced mine prop

Country Status (1)

Country Link
FR (1) FR1067744A (en)

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