FR1261780A - Improvements to coal cutters - Google Patents

Improvements to coal cutters

Info

Publication number
FR1261780A
FR1261780A FR832170A FR832170A FR1261780A FR 1261780 A FR1261780 A FR 1261780A FR 832170 A FR832170 A FR 832170A FR 832170 A FR832170 A FR 832170A FR 1261780 A FR1261780 A FR 1261780A
Authority
FR
France
Prior art keywords
coal cutters
cutters
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
FR832170A
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.)
Austin Hoy and Co Ltd
Original Assignee
Austin Hoy and Co 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 Austin Hoy and Co Ltd filed Critical Austin Hoy and Co Ltd
Priority to FR832170A priority Critical patent/FR1261780A/en
Application granted granted Critical
Publication of FR1261780A publication Critical patent/FR1261780A/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

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)
FR832170A 1960-07-06 1960-07-06 Improvements to coal cutters Expired FR1261780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR832170A FR1261780A (en) 1960-07-06 1960-07-06 Improvements to coal cutters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR832170A FR1261780A (en) 1960-07-06 1960-07-06 Improvements to coal cutters

Publications (1)

Publication Number Publication Date
FR1261780A true FR1261780A (en) 1961-05-19

Family

ID=8734960

Family Applications (1)

Application Number Title Priority Date Filing Date
FR832170A Expired FR1261780A (en) 1960-07-06 1960-07-06 Improvements to coal cutters

Country Status (1)

Country Link
FR (1) FR1261780A (en)

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