NL6510418A - - Google Patents

Info

Publication number
NL6510418A
NL6510418A NL6510418A NL6510418A NL6510418A NL 6510418 A NL6510418 A NL 6510418A NL 6510418 A NL6510418 A NL 6510418A NL 6510418 A NL6510418 A NL 6510418A NL 6510418 A NL6510418 A NL 6510418A
Authority
NL
Netherlands
Application number
NL6510418A
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
Priority to NL6510418A priority Critical patent/NL6510418A/xx
Publication of NL6510418A publication Critical patent/NL6510418A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
NL6510418A 1965-08-10 1965-08-10 NL6510418A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL6510418A NL6510418A (zh) 1965-08-10 1965-08-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6510418A NL6510418A (zh) 1965-08-10 1965-08-10

Publications (1)

Publication Number Publication Date
NL6510418A true NL6510418A (zh) 1967-02-13

Family

ID=19793855

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6510418A NL6510418A (zh) 1965-08-10 1965-08-10

Country Status (1)

Country Link
NL (1) NL6510418A (zh)

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