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FR839659A - Perfectionnements aux haveuses et machines analogues ou aux machines combinées pourle havage et le chargement - Google Patents

Perfectionnements aux haveuses et machines analogues ou aux machines combinées pourle havage et le chargement

Info

Publication number
FR839659A
FR839659A FR839659DA FR839659A FR 839659 A FR839659 A FR 839659A FR 839659D A FR839659D A FR 839659DA FR 839659 A FR839659 A FR 839659A
Authority
FR
France
Prior art keywords
machines
cutters
loading
cutting
combined
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
English (en)
Inventor
Oswald Floyd Lewis
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.)
Newton Chambers and Co Ltd
NEWTON
Original Assignee
Newton Chambers and Co Ltd
NEWTON
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 Newton Chambers and Co Ltd, NEWTON filed Critical Newton Chambers and Co Ltd
Application granted granted Critical
Publication of FR839659A publication Critical patent/FR839659A/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
    • E21C27/02—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)
FR839659D 1937-06-24 1938-06-23 Perfectionnements aux haveuses et machines analogues ou aux machines combinées pourle havage et le chargement Expired FR839659A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB839659X 1937-06-24

Publications (1)

Publication Number Publication Date
FR839659A true FR839659A (fr) 1939-04-07

Family

ID=10554463

Family Applications (1)

Application Number Title Priority Date Filing Date
FR839659D Expired FR839659A (fr) 1937-06-24 1938-06-23 Perfectionnements aux haveuses et machines analogues ou aux machines combinées pourle havage et le chargement

Country Status (1)

Country Link
FR (1) FR839659A (fr)

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