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FR436093A - Improvements to the knife bars of coal cutters and other ores - Google Patents

Improvements to the knife bars of coal cutters and other ores

Info

Publication number
FR436093A
FR436093A FR436093A FR436093DA FR436093A FR 436093 A FR436093 A FR 436093A FR 436093 A FR436093 A FR 436093A FR 436093D A FR436093D A FR 436093DA FR 436093 A FR436093 A FR 436093A
Authority
FR
France
Prior art keywords
ores
knife bars
coal cutters
cutters
coal
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
FR436093A
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 FR436093A publication Critical patent/FR436093A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E21C25/10—Rods; Drums

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)
  • Crushing And Pulverization Processes (AREA)
  • Milling Processes (AREA)
FR436093A 1910-12-10 1911-11-08 Improvements to the knife bars of coal cutters and other ores Expired FR436093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191028731T 1910-12-10

Publications (1)

Publication Number Publication Date
FR436093A true FR436093A (en) 1912-03-16

Family

ID=32495493

Family Applications (1)

Application Number Title Priority Date Filing Date
FR436093A Expired FR436093A (en) 1910-12-10 1911-11-08 Improvements to the knife bars of coal cutters and other ores

Country Status (3)

Country Link
DE (1) DE260055C (en)
FR (1) FR436093A (en)
GB (1) GB191028731A (en)

Also Published As

Publication number Publication date
GB191028731A (en) 1911-09-07
DE260055C (en)

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