FR1107421A - étançon de mine - Google Patents

étançon de mine

Info

Publication number
FR1107421A
FR1107421A FR1107421DA FR1107421A FR 1107421 A FR1107421 A FR 1107421A FR 1107421D A FR1107421D A FR 1107421DA FR 1107421 A FR1107421 A FR 1107421A
Authority
FR
France
Prior art keywords
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
English (en)
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents 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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Application granted granted Critical
Publication of FR1107421A publication Critical patent/FR1107421A/fr
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)
FR1107421D 1953-09-09 1954-09-09 étançon de mine Expired FR1107421A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1107421X 1953-09-09

Publications (1)

Publication Number Publication Date
FR1107421A true FR1107421A (fr) 1955-12-30

Family

ID=10874532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1107421D Expired FR1107421A (fr) 1953-09-09 1954-09-09 étançon de mine

Country Status (1)

Country Link
FR (1) FR1107421A (fr)

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