FR1442094A - Method and device for extracting coal in sizes by semi-straightening or straightening - Google Patents

Method and device for extracting coal in sizes by semi-straightening or straightening

Info

Publication number
FR1442094A
FR1442094A FR27150A FR27150A FR1442094A FR 1442094 A FR1442094 A FR 1442094A FR 27150 A FR27150 A FR 27150A FR 27150 A FR27150 A FR 27150A FR 1442094 A FR1442094 A FR 1442094A
Authority
FR
France
Prior art keywords
straightening
sizes
semi
extracting coal
coal
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
FR27150A
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Application granted granted Critical
Publication of FR1442094A publication Critical patent/FR1442094A/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
    • 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)
FR27150A 1964-08-29 1965-08-04 Method and device for extracting coal in sizes by semi-straightening or straightening Expired FR1442094A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR1442094A true FR1442094A (en) 1966-06-10

Family

ID=7126678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR27150A Expired FR1442094A (en) 1964-08-29 1965-08-04 Method and device for extracting coal in sizes by semi-straightening or straightening

Country Status (2)

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

Also Published As

Publication number Publication date
BE668857A (en) 1966-02-28

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