FR1123477A - étançon de mine métallique - Google Patents

étançon de mine métallique

Info

Publication number
FR1123477A
FR1123477A FR1123477DA FR1123477A FR 1123477 A FR1123477 A FR 1123477A FR 1123477D A FR1123477D A FR 1123477DA FR 1123477 A FR1123477 A FR 1123477A
Authority
FR
France
Prior art keywords
metal mine
mine prop
prop
metal
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)
Inventor
Karl Gerlach
Hans Gerlach
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 FR1123477A publication Critical patent/FR1123477A/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
    • 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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations

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)
FR1123477D 1954-05-08 1955-05-04 étançon de mine métallique Expired FR1123477A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1123477X 1954-05-08

Publications (1)

Publication Number Publication Date
FR1123477A true FR1123477A (fr) 1956-09-21

Family

ID=7724872

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1123477D Expired FR1123477A (fr) 1954-05-08 1955-05-04 étançon de mine métallique

Country Status (1)

Country Link
FR (1) FR1123477A (fr)

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