BE481661A - - Google Patents

Info

Publication number
BE481661A
BE481661A BE481661DA BE481661A BE 481661 A BE481661 A BE 481661A BE 481661D A BE481661D A BE 481661DA BE 481661 A BE481661 A BE 481661A
Authority
BE
Belgium
Prior art keywords
calibration
lock
pocket
barrel
carried out
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE481661A publication Critical patent/BE481661A/fr

Links

Classifications

    • 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
    • E21D15/50Component parts or details of props
    • E21D15/56Details of locks of telescopic props
    • 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
    • E21D15/50Component parts or details of props
    • E21D15/56Details of locks of telescopic props
    • E21D15/563Details of locks of telescopic props by which a series of similarly shaped props can obtain an almost equal load-capacity

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)
  • Connection Of Plates (AREA)
  • Forging (AREA)
BE481661D BE481661A (cs)

Publications (1)

Publication Number Publication Date
BE481661A true BE481661A (cs)

Family

ID=128566

Family Applications (1)

Application Number Title Priority Date Filing Date
BE481661D BE481661A (cs)

Country Status (1)

Country Link
BE (1) BE481661A (cs)

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