BE491324A - - Google Patents

Info

Publication number
BE491324A
BE491324A BE491324DA BE491324A BE 491324 A BE491324 A BE 491324A BE 491324D A BE491324D A BE 491324DA BE 491324 A BE491324 A BE 491324A
Authority
BE
Belgium
Prior art keywords
conveyor
return
wedge
racks
shoring
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE491324A publication Critical patent/BE491324A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00Transport specially adapted to underground conditions
    • E21F13/08Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086Armoured conveyors shifting devices
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/60Devices for withdrawing props or chocks
    • E21D15/606Devices for withdrawing props or chocks the props being moved systematically

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)
  • Structural Engineering (AREA)
  • Intermediate Stations On Conveyors (AREA)
BE491324D BE491324A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
BE491324A true BE491324A (enrdf_load_html_response)

Family

ID=135812

Family Applications (1)

Application Number Title Priority Date Filing Date
BE491324D BE491324A (enrdf_load_html_response)

Country Status (1)

Country Link
BE (1) BE491324A (enrdf_load_html_response)

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