FR1546467A - Ore mining machine head - Google Patents

Ore mining machine head

Info

Publication number
FR1546467A
FR1546467A FR69198A FR69198A FR1546467A FR 1546467 A FR1546467 A FR 1546467A FR 69198 A FR69198 A FR 69198A FR 69198 A FR69198 A FR 69198A FR 1546467 A FR1546467 A FR 1546467A
Authority
FR
France
Prior art keywords
machine head
mining machine
ore mining
ore
head
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
FR69198A
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.)
Salem Tool Co
Original Assignee
Salem Tool 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
Priority claimed from US475688A external-priority patent/US3395941A/en
Application filed by Salem Tool Co filed Critical Salem Tool Co
Priority to FR69198A priority Critical patent/FR1546467A/en
Application granted granted Critical
Publication of FR1546467A publication Critical patent/FR1546467A/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
    • E21C27/22—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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/58—Machines slitting by drilling hole on hole

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)
FR69198A 1965-07-29 1966-07-12 Ore mining machine head Expired FR1546467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR69198A FR1546467A (en) 1965-07-29 1966-07-12 Ore mining machine head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US475688A US3395941A (en) 1965-07-29 1965-07-29 Rotary auger mining barrel head
FR69198A FR1546467A (en) 1965-07-29 1966-07-12 Ore mining machine head

Publications (1)

Publication Number Publication Date
FR1546467A true FR1546467A (en) 1968-11-22

Family

ID=26171939

Family Applications (1)

Application Number Title Priority Date Filing Date
FR69198A Expired FR1546467A (en) 1965-07-29 1966-07-12 Ore mining machine head

Country Status (1)

Country Link
FR (1) FR1546467A (en)

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