FR1421913A - Improvements in support devices for mines - Google Patents

Improvements in support devices for mines

Info

Publication number
FR1421913A
FR1421913A FR2903A FR2903A FR1421913A FR 1421913 A FR1421913 A FR 1421913A FR 2903 A FR2903 A FR 2903A FR 2903 A FR2903 A FR 2903A FR 1421913 A FR1421913 A FR 1421913A
Authority
FR
France
Prior art keywords
mines
support devices
devices
support
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
FR2903A
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to FR2903A priority Critical patent/FR1421913A/en
Application granted granted Critical
Publication of FR1421913A publication Critical patent/FR1421913A/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
    • E21D15/50—Component parts or details of props
    • E21D15/54—Details of the ends of props

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)
FR2903A 1965-01-22 1965-01-22 Improvements in support devices for mines Expired FR1421913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2903A FR1421913A (en) 1965-01-22 1965-01-22 Improvements in support devices for mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2903A FR1421913A (en) 1965-01-22 1965-01-22 Improvements in support devices for mines

Publications (1)

Publication Number Publication Date
FR1421913A true FR1421913A (en) 1965-12-17

Family

ID=8568937

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2903A Expired FR1421913A (en) 1965-01-22 1965-01-22 Improvements in support devices for mines

Country Status (1)

Country Link
FR (1) FR1421913A (en)

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