FR1063874A - Method and apparatus for the extraction of coals and ores - Google Patents

Method and apparatus for the extraction of coals and ores

Info

Publication number
FR1063874A
FR1063874A FR1063874DA FR1063874A FR 1063874 A FR1063874 A FR 1063874A FR 1063874D A FR1063874D A FR 1063874DA FR 1063874 A FR1063874 A FR 1063874A
Authority
FR
France
Prior art keywords
coals
ores
extraction
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOHLENBERGBAU LEITUNG DEUTSCHE
Original Assignee
KOHLENBERGBAU LEITUNG DEUTSCHE
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 by KOHLENBERGBAU LEITUNG DEUTSCHE filed Critical KOHLENBERGBAU LEITUNG DEUTSCHE
Application granted granted Critical
Publication of FR1063874A publication Critical patent/FR1063874A/en
Expired legal-status Critical Current

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

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)
FR1063874D 1951-06-13 1952-06-09 Method and apparatus for the extraction of coals and ores Expired FR1063874A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1063874X 1951-06-13

Publications (1)

Publication Number Publication Date
FR1063874A true FR1063874A (en) 1954-05-07

Family

ID=7718886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1063874D Expired FR1063874A (en) 1951-06-13 1952-06-09 Method and apparatus for the extraction of coals and ores

Country Status (1)

Country Link
FR (1) FR1063874A (en)

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