NL249704A - - Google Patents

Info

Publication number
NL249704A
NL249704A NL249704DA NL249704A NL 249704 A NL249704 A NL 249704A NL 249704D A NL249704D A NL 249704DA NL 249704 A NL249704 A NL 249704A
Authority
NL
Netherlands
Application number
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.)
Publication of NL249704A publication Critical patent/NL249704A/xx

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
    • E21D15/14Telescopic props
    • E21D15/44Hydraulic, pneumatic, or hydraulic-pneumatic props

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)
  • Lining And Supports For Tunnels (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Connection Of Plates (AREA)
NL249704D 1959-03-23 NL249704A (enrdf_load_html_response)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DESCH25772A DE1080499B (de) 1959-03-23 1959-03-23 Nachgiebiges hydraulisches Stuetzelement fuer den Bergbau unter Tage
DESCH25993A DE1089350B (de) 1959-03-23 1959-05-02 Nachgiebiges hydraulisches Stuetzelement fuer den Bergbau unter Tage

Publications (1)

Publication Number Publication Date
NL249704A true NL249704A (enrdf_load_html_response)

Family

ID=25992768

Family Applications (1)

Application Number Title Priority Date Filing Date
NL249704D NL249704A (enrdf_load_html_response) 1959-03-23

Country Status (3)

Country Link
DE (2) DE1080499B (enrdf_load_html_response)
GB (1) GB942471A (enrdf_load_html_response)
NL (1) NL249704A (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665719A (en) * 1969-05-28 1972-05-30 Atlantic Richfield Co Apparatus for counterstressing in situ rock for support of underground openings
DE4224852C2 (de) * 1992-07-28 1997-06-12 Langerbein Scharf Gmbh & Co Kg Rohrstütze, insbesondere für den untertägigen Berg- und Tunnelbau
AU2011216967B2 (en) 2010-02-19 2016-10-20 Council Of Scientific & Industrial Research A device for roof support of underground mine/tunnel

Also Published As

Publication number Publication date
DE1080499B (de) 1960-04-28
DE1089350B (de) 1960-09-22
GB942471A (en) 1963-11-20

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