FR1195296A - Method and device for the automatic extraction of coal from the seams by straightening, in particular by means of a plane - Google Patents

Method and device for the automatic extraction of coal from the seams by straightening, in particular by means of a plane

Info

Publication number
FR1195296A
FR1195296A FR1195296DA FR1195296A FR 1195296 A FR1195296 A FR 1195296A FR 1195296D A FR1195296D A FR 1195296DA FR 1195296 A FR1195296 A FR 1195296A
Authority
FR
France
Prior art keywords
straightening
seams
coal
plane
automatic 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.)
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 FR1195296A publication Critical patent/FR1195296A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
    • E21C29/14—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
    • E21C29/145—Means for tensioning the haulage chains or cables

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)
FR1195296D 1957-01-24 1957-12-11 Method and device for the automatic extraction of coal from the seams by straightening, in particular by means of a plane Expired FR1195296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1195296X 1957-01-24

Publications (1)

Publication Number Publication Date
FR1195296A true FR1195296A (en) 1959-11-16

Family

ID=7731608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1195296D Expired FR1195296A (en) 1957-01-24 1957-12-11 Method and device for the automatic extraction of coal from the seams by straightening, in particular by means of a plane

Country Status (1)

Country Link
FR (1) FR1195296A (en)

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