BE505173A - - Google Patents

Info

Publication number
BE505173A
BE505173A BE505173DA BE505173A BE 505173 A BE505173 A BE 505173A BE 505173D A BE505173D A BE 505173DA BE 505173 A BE505173 A BE 505173A
Authority
BE
Belgium
Prior art keywords
wedge
clamping
counter
support
loosening
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE505173A publication Critical patent/BE505173A/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
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
  • Clamps And Clips (AREA)
BE505173D BE505173A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
BE505173A true BE505173A (enrdf_load_html_response)

Family

ID=145792

Family Applications (1)

Application Number Title Priority Date Filing Date
BE505173D BE505173A (enrdf_load_html_response)

Country Status (1)

Country Link
BE (1) BE505173A (enrdf_load_html_response)

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