FR1144986A - Advanced machine for the extraction of coal and other mineral materials - Google Patents

Advanced machine for the extraction of coal and other mineral materials

Info

Publication number
FR1144986A
FR1144986A FR1144986DA FR1144986A FR 1144986 A FR1144986 A FR 1144986A FR 1144986D A FR1144986D A FR 1144986DA FR 1144986 A FR1144986 A FR 1144986A
Authority
FR
France
Prior art keywords
coal
extraction
mineral materials
advanced machine
advanced
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.)
Mavor and Coulson Ltd
Original Assignee
Mavor and Coulson Ltd
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 Mavor and Coulson Ltd filed Critical Mavor and Coulson Ltd
Application granted granted Critical
Publication of FR1144986A publication Critical patent/FR1144986A/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
    • E21C27/02—Machines which completely free the mineral from the seam solely by slitting
    • E21C27/04—Machines which completely free the mineral from the seam solely by slitting by a single chain guided on a frame with or without auxiliary slitting means
    • E21C27/06—Machines which completely free the mineral from the seam solely by slitting by a single chain guided on a frame with or without auxiliary slitting means with a slewing frame

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)
FR1144986D 1956-03-31 1956-03-31 Advanced machine for the extraction of coal and other mineral materials Expired FR1144986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1144986T 1956-03-31

Publications (1)

Publication Number Publication Date
FR1144986A true FR1144986A (en) 1957-10-21

Family

ID=9644599

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1144986D Expired FR1144986A (en) 1956-03-31 1956-03-31 Advanced machine for the extraction of coal and other mineral materials

Country Status (1)

Country Link
FR (1) FR1144986A (en)

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