FR1466803A - Appareil de mine - Google Patents

Appareil de mine

Info

Publication number
FR1466803A
FR1466803A FR47991A FR47991A FR1466803A FR 1466803 A FR1466803 A FR 1466803A FR 47991 A FR47991 A FR 47991A FR 47991 A FR47991 A FR 47991A FR 1466803 A FR1466803 A FR 1466803A
Authority
FR
France
Prior art keywords
mine apparatus
mine
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
FR47991A
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.)
Joy Manufacturing Co
Original Assignee
Joy Manufacturing Co
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 Joy Manufacturing Co filed Critical Joy Manufacturing Co
Priority to FR47991A priority Critical patent/FR1466803A/fr
Application granted granted Critical
Publication of FR1466803A publication Critical patent/FR1466803A/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
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/22—Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills, i.e. the rotary axis of the tool carrier being substantially perpendicular to the working face, e.g. MARIETTA-type

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)
FR47991A 1966-02-01 1966-02-01 Appareil de mine Expired FR1466803A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR47991A FR1466803A (fr) 1966-02-01 1966-02-01 Appareil de mine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR47991A FR1466803A (fr) 1966-02-01 1966-02-01 Appareil de mine

Publications (1)

Publication Number Publication Date
FR1466803A true FR1466803A (fr) 1967-01-20

Family

ID=8600252

Family Applications (1)

Application Number Title Priority Date Filing Date
FR47991A Expired FR1466803A (fr) 1966-02-01 1966-02-01 Appareil de mine

Country Status (1)

Country Link
FR (1) FR1466803A (fr)

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