BE453989A - - Google Patents

Info

Publication number
BE453989A
BE453989A BE453989DA BE453989A BE 453989 A BE453989 A BE 453989A BE 453989D A BE453989D A BE 453989DA BE 453989 A BE453989 A BE 453989A
Authority
BE
Belgium
Prior art keywords
ribs
mine shaft
conical
harness
keys
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE453989A publication Critical patent/BE453989A/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D7/00—Shaft equipment, e.g. timbering within the shaft
    • E21D7/02—Arrangement of guides for cages in shafts; Connection of guides for cages to shaft walls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Railway Tracks (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
BE453989D BE453989A (forum.php)

Publications (1)

Publication Number Publication Date
BE453989A true BE453989A (forum.php)

Family

ID=108240

Family Applications (1)

Application Number Title Priority Date Filing Date
BE453989D BE453989A (forum.php)

Country Status (1)

Country Link
BE (1) BE453989A (forum.php)

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