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FR922311A - Improvements in or relating to mining machinery - Google Patents

Improvements in or relating to mining machinery

Info

Publication number
FR922311A
FR922311A FR922311DA FR922311A FR 922311 A FR922311 A FR 922311A FR 922311D A FR922311D A FR 922311DA FR 922311 A FR922311 A FR 922311A
Authority
FR
France
Prior art keywords
relating
mining machinery
mining
machinery
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 FR922311A publication Critical patent/FR922311A/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
    • E21C27/10—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
    • E21C27/128—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 breaking-down members functioning on the slitting level
    • 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
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements

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)
FR922311D 1943-11-20 1945-11-23 Improvements in or relating to mining machinery Expired FR922311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB922311X 1943-11-20

Publications (1)

Publication Number Publication Date
FR922311A true FR922311A (en) 1947-06-05

Family

ID=10724530

Family Applications (1)

Application Number Title Priority Date Filing Date
FR922311D Expired FR922311A (en) 1943-11-20 1945-11-23 Improvements in or relating to mining machinery

Country Status (1)

Country Link
FR (1) FR922311A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974235C (en) * 1951-04-14 1960-10-27 Eisengiesserei A Beien Peeling extraction device (coal plow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974235C (en) * 1951-04-14 1960-10-27 Eisengiesserei A Beien Peeling extraction device (coal plow)

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