FR1201983A - Coal plane with sharp-edged picks at its two ends for cutting by abrasion alternately in both directions of movement, usable in particular in mines - Google Patents

Coal plane with sharp-edged picks at its two ends for cutting by abrasion alternately in both directions of movement, usable in particular in mines

Info

Publication number
FR1201983A
FR1201983A FR1201983DA FR1201983A FR 1201983 A FR1201983 A FR 1201983A FR 1201983D A FR1201983D A FR 1201983DA FR 1201983 A FR1201983 A FR 1201983A
Authority
FR
France
Prior art keywords
mines
edged
picks
abrasion
usable
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 FR1201983A publication Critical patent/FR1201983A/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)
FR1201983D 1957-09-26 1958-09-04 Coal plane with sharp-edged picks at its two ends for cutting by abrasion alternately in both directions of movement, usable in particular in mines Expired FR1201983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1201983X 1957-09-26

Publications (1)

Publication Number Publication Date
FR1201983A true FR1201983A (en) 1960-01-07

Family

ID=7732327

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1201983D Expired FR1201983A (en) 1957-09-26 1958-09-04 Coal plane with sharp-edged picks at its two ends for cutting by abrasion alternately in both directions of movement, usable in particular in mines

Country Status (1)

Country Link
FR (1) FR1201983A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208267B (en) * 1961-07-22 1966-01-05 Gewerk Eisenhuette Westfalia Plane for peeling extraction and loading of coal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208267B (en) * 1961-07-22 1966-01-05 Gewerk Eisenhuette Westfalia Plane for peeling extraction and loading of coal

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