GB191309448A - Coal Cutting Machine. - Google Patents

Coal Cutting Machine.

Info

Publication number
GB191309448A
GB191309448A GB191309448DA GB191309448A GB 191309448 A GB191309448 A GB 191309448A GB 191309448D A GB191309448D A GB 191309448DA GB 191309448 A GB191309448 A GB 191309448A
Authority
GB
United Kingdom
Prior art keywords
shaft
cutting machine
machine
disks
driven
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
Inventor
August Scharf
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191309448A publication Critical patent/GB191309448A/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
    • E21C25/16—Machines slitting solely by one or more rotating saws, cutting discs, or wheels

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)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Gear Transmission (AREA)

Abstract

9448. Scharf, A. April 22, 1912, [Convention date]. Coal-cutting machines. - A slotting-machine, of the type comprising two cutting-disks driven by a shaft between them, is provided with milling-cutters g arranged between the disks f on either side of the main shaft t revolubly mounted on shafts perpendicular to the main shaft. The gearing is protected by a close-fitting casing (not shown). The hollow shaft t is driven by compressed air, and dust is blown out of the slot by air forced through the shaft. A handle k is grasped by the miner to prevent the machine from twisting round the shaft.
GB191309448D 1912-04-22 1913-04-22 Coal Cutting Machine. Expired GB191309448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE257965T 1912-04-22

Publications (1)

Publication Number Publication Date
GB191309448A true GB191309448A (en) 1913-10-09

Family

ID=32604561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191309448D Expired GB191309448A (en) 1912-04-22 1913-04-22 Coal Cutting Machine.

Country Status (3)

Country Link
DE (1) DE257965C (en)
FR (1) FR456816A (en)
GB (1) GB191309448A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1006435A (en) * 1948-01-14 1952-04-23 Drilling machine

Also Published As

Publication number Publication date
FR456816A (en) 1913-09-05
DE257965C (en)

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