BE415637A - - Google Patents

Info

Publication number
BE415637A
BE415637A BE415637A BE415637A BE415637A BE 415637 A BE415637 A BE 415637A BE 415637 A BE415637 A BE 415637A BE 415637 A BE415637 A BE 415637A BE 415637 A BE415637 A BE 415637A
Authority
BE
Belgium
Prior art keywords
wings
internal element
internal
prop
core
Prior art date
Application number
BE415637A
Other languages
English (en)
French (fr)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BE415637A publication Critical patent/BE415637A/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)
  • Braking Arrangements (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
BE415637A 1934-12-25 1936-05-20 BE415637A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET44766D DE636452C (de) 1934-12-25 1934-12-25 Nachgiebiger Grubenstempel

Publications (1)

Publication Number Publication Date
BE415637A true BE415637A (enrdf_load_html_response) 1936-06-30

Family

ID=7561847

Family Applications (1)

Application Number Title Priority Date Filing Date
BE415637A BE415637A (enrdf_load_html_response) 1934-12-25 1936-05-20

Country Status (2)

Country Link
BE (1) BE415637A (enrdf_load_html_response)
DE (1) DE636452C (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975087C (de) * 1951-05-18 1961-08-10 Bochumer Eisen Heintzmann Gleitbogen, insbesondere fuer den Streckenausbau

Also Published As

Publication number Publication date
DE636452C (de) 1936-10-08

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