GB251553A - Improved appliance for drilling holes in rock, coal and like faces - Google Patents

Improved appliance for drilling holes in rock, coal and like faces

Info

Publication number
GB251553A
GB251553A GB30663/25A GB3066325A GB251553A GB 251553 A GB251553 A GB 251553A GB 30663/25 A GB30663/25 A GB 30663/25A GB 3066325 A GB3066325 A GB 3066325A GB 251553 A GB251553 A GB 251553A
Authority
GB
United Kingdom
Prior art keywords
coal
faces
rock
drilling holes
improved appliance
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
GB30663/25A
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
Priority to GB30663/25A priority Critical patent/GB251553A/en
Publication of GB251553A publication Critical patent/GB251553A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/006—Means for anchoring the drilling machine to the ground

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

251,553. Harris, B. Dec. 4, 1925. Drilling-machines.-A machine for drilling rock, coal, and like faces has a tubular support 15 secured in position by a pointed end 11 and a screwed end 13. A central slot 9 in the support carries front edge notches engaging trunnions on a feed nut 7. Within the latter works a screwed rod 1 with polygonal end 4 engaging a socket 5 carrying a drill 6.
GB30663/25A 1925-12-04 1925-12-04 Improved appliance for drilling holes in rock, coal and like faces Expired GB251553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30663/25A GB251553A (en) 1925-12-04 1925-12-04 Improved appliance for drilling holes in rock, coal and like faces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30663/25A GB251553A (en) 1925-12-04 1925-12-04 Improved appliance for drilling holes in rock, coal and like faces

Publications (1)

Publication Number Publication Date
GB251553A true GB251553A (en) 1926-05-06

Family

ID=10311160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30663/25A Expired GB251553A (en) 1925-12-04 1925-12-04 Improved appliance for drilling holes in rock, coal and like faces

Country Status (1)

Country Link
GB (1) GB251553A (en)

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