NL6500763A - - Google Patents

Info

Publication number
NL6500763A
NL6500763A NL6500763A NL6500763A NL6500763A NL 6500763 A NL6500763 A NL 6500763A NL 6500763 A NL6500763 A NL 6500763A NL 6500763 A NL6500763 A NL 6500763A NL 6500763 A NL6500763 A NL 6500763A
Authority
NL
Netherlands
Application number
NL6500763A
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 NL6500763A publication Critical patent/NL6500763A/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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
    • 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
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports

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)
  • Framework For Endless Conveyors (AREA)
NL6500763A 1964-01-21 1965-01-21 NL6500763A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB268264A GB1044071A (en) 1964-01-21 1964-01-21 Improvements in or relating to roof supports suitable for mines

Publications (1)

Publication Number Publication Date
NL6500763A true NL6500763A (zh) 1965-07-22

Family

ID=9743922

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6500763A NL6500763A (zh) 1964-01-21 1965-01-21

Country Status (5)

Country Link
AT (1) AT269034B (zh)
BE (1) BE658551A (zh)
FR (1) FR1421194A (zh)
GB (1) GB1044071A (zh)
NL (1) NL6500763A (zh)

Also Published As

Publication number Publication date
BE658551A (zh) 1965-05-17
FR1421194A (fr) 1965-12-10
AT269034B (de) 1969-03-10
GB1044071A (en) 1966-09-28

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