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FR947455A - Further training in devices for mining for coal - Google Patents

Further training in devices for mining for coal

Info

Publication number
FR947455A
FR947455A FR947455DA FR947455A FR 947455 A FR947455 A FR 947455A FR 947455D A FR947455D A FR 947455DA FR 947455 A FR947455 A FR 947455A
Authority
FR
France
Prior art keywords
mining
coal
devices
further training
training
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 FR947455A publication Critical patent/FR947455A/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
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/42—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements combined with scraper or collector box

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)
FR947455D 1945-07-02 1947-06-02 Further training in devices for mining for coal Expired FR947455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB947455X 1945-07-02

Publications (1)

Publication Number Publication Date
FR947455A true FR947455A (en) 1949-07-04

Family

ID=10767314

Family Applications (1)

Application Number Title Priority Date Filing Date
FR947455D Expired FR947455A (en) 1945-07-02 1947-06-02 Further training in devices for mining for coal

Country Status (1)

Country Link
FR (1) FR947455A (en)

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