FR53306E - iron prop for mining galleries - Google Patents

iron prop for mining galleries

Info

Publication number
FR53306E
FR53306E FR53306DA FR53306E FR 53306 E FR53306 E FR 53306E FR 53306D A FR53306D A FR 53306DA FR 53306 E FR53306 E FR 53306E
Authority
FR
France
Prior art keywords
iron prop
mining galleries
galleries
mining
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
Other languages
French (fr)
Inventor
Arnold Koepe
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 FR53306E publication Critical patent/FR53306E/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
    • E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section

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)
FR53306D 1944-01-19 1944-01-19 iron prop for mining galleries Expired FR53306E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR53306T 1944-01-19

Publications (1)

Publication Number Publication Date
FR53306E true FR53306E (en) 1945-10-16

Family

ID=8687883

Family Applications (1)

Application Number Title Priority Date Filing Date
FR53306D Expired FR53306E (en) 1944-01-19 1944-01-19 iron prop for mining galleries

Country Status (1)

Country Link
FR (1) FR53306E (en)

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