FR1195777A - Machines d'abattage de charbon - Google Patents

Machines d'abattage de charbon

Info

Publication number
FR1195777A
FR1195777A FR1195777DA FR1195777A FR 1195777 A FR1195777 A FR 1195777A FR 1195777D A FR1195777D A FR 1195777DA FR 1195777 A FR1195777 A FR 1195777A
Authority
FR
France
Prior art keywords
coal mining
mining machines
machines
coal
mining
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
English (en)
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents 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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Application granted granted Critical
Publication of FR1195777A publication Critical patent/FR1195777A/fr
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
    • E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
    • E21C27/12—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools
    • E21C27/124—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools with rotatable cutters provided with breaking-down members

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)
FR1195777D 1957-05-16 1958-05-09 Machines d'abattage de charbon Expired FR1195777A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1195777X 1957-05-16

Publications (1)

Publication Number Publication Date
FR1195777A true FR1195777A (fr) 1959-11-19

Family

ID=10881477

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1195777D Expired FR1195777A (fr) 1957-05-16 1958-05-09 Machines d'abattage de charbon

Country Status (1)

Country Link
FR (1) FR1195777A (fr)

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