FR1170009A - mine prop - Google Patents

mine prop

Info

Publication number
FR1170009A
FR1170009A FR1170009DA FR1170009A FR 1170009 A FR1170009 A FR 1170009A FR 1170009D A FR1170009D A FR 1170009DA FR 1170009 A FR1170009 A FR 1170009A
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
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.)
EWALD WIEMANN MASCHF
Original Assignee
EWALD WIEMANN MASCHF
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 EWALD WIEMANN MASCHF filed Critical EWALD WIEMANN MASCHF
Application granted granted Critical
Publication of FR1170009A publication Critical patent/FR1170009A/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)
FR1170009D 1956-03-24 1957-03-25 mine prop Expired FR1170009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1170009X 1956-03-24

Publications (1)

Publication Number Publication Date
FR1170009A true FR1170009A (en) 1959-01-08

Family

ID=7729223

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1170009D Expired FR1170009A (en) 1956-03-24 1957-03-25 mine prop

Country Status (1)

Country Link
FR (1) FR1170009A (en)

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