FR443627A - Perfectionnements aux perforatrices pour mines - Google Patents

Perfectionnements aux perforatrices pour mines

Info

Publication number
FR443627A
FR443627A FR443627DA FR443627A FR 443627 A FR443627 A FR 443627A FR 443627D A FR443627D A FR 443627DA FR 443627 A FR443627 A FR 443627A
Authority
FR
France
Prior art keywords
punches
mine
mine punches
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
Louis Frank Hess
Raleigh Colston Taylor
Edwin Randolph Page
William Henry Evans
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.)
EDWIN RANDOLPH PAGE
RALEIGH COLSTON TAYLOR
Original Assignee
EDWIN RANDOLPH PAGE
RALEIGH COLSTON TAYLOR
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 EDWIN RANDOLPH PAGE, RALEIGH COLSTON TAYLOR filed Critical EDWIN RANDOLPH PAGE
Application granted granted Critical
Publication of FR443627A publication Critical patent/FR443627A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor

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)
FR443627D 1912-05-09 1912-05-09 Perfectionnements aux perforatrices pour mines Expired FR443627A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR443627T 1912-05-09

Publications (1)

Publication Number Publication Date
FR443627A true FR443627A (fr) 1912-09-28

Family

ID=1484672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR443627D Expired FR443627A (fr) 1912-05-09 1912-05-09 Perfectionnements aux perforatrices pour mines

Country Status (1)

Country Link
FR (1) FR443627A (fr)

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