BE400267A - - Google Patents

Info

Publication number
BE400267A
BE400267A BE400267DA BE400267A BE 400267 A BE400267 A BE 400267A BE 400267D A BE400267D A BE 400267DA BE 400267 A BE400267 A BE 400267A
Authority
BE
Belgium
Prior art keywords
wedge
prop
strut
housing
lock
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE400267A publication Critical patent/BE400267A/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)
BE400267D BE400267A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE400267A true BE400267A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=66414

Family Applications (1)

Application Number Title Priority Date Filing Date
BE400267D BE400267A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE400267A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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