BE452706A - - Google Patents

Info

Publication number
BE452706A
BE452706A BE452706DA BE452706A BE 452706 A BE452706 A BE 452706A BE 452706D A BE452706D A BE 452706DA BE 452706 A BE452706 A BE 452706A
Authority
BE
Belgium
Prior art keywords
wedge
lock
friction
friction lining
lining
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE452706A publication Critical patent/BE452706A/fr

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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction

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)
  • Braking Arrangements (AREA)
BE452706D BE452706A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE452706A true BE452706A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=107267

Family Applications (1)

Application Number Title Priority Date Filing Date
BE452706D BE452706A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE452706A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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