BE668857A - - Google Patents

Info

Publication number
BE668857A
BE668857A BE668857DA BE668857A BE 668857 A BE668857 A BE 668857A BE 668857D A BE668857D A BE 668857DA BE 668857 A BE668857 A BE 668857A
Authority
BE
Belgium
Prior art keywords
plane
size
chain
coal
return
Prior art date
Application number
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 BE668857A publication Critical patent/BE668857A/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/34—Machine propelled along the working face by cable or chain
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/34—Machine propelled along the working face by cable or chain
    • E21C27/35—Ram-ploughs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
BE668857D 1964-08-29 1965-08-27 BE668857A (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0041406 1964-08-29

Publications (1)

Publication Number Publication Date
BE668857A true BE668857A (OSRAM) 1966-02-28

Family

ID=7126678

Family Applications (1)

Application Number Title Priority Date Filing Date
BE668857D BE668857A (OSRAM) 1964-08-29 1965-08-27

Country Status (2)

Country Link
BE (1) BE668857A (OSRAM)
FR (1) FR1442094A (OSRAM)

Also Published As

Publication number Publication date
FR1442094A (fr) 1966-06-10

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