GB191502779A - Improvements in Rock-drilling and other Pneumatic and like Tools. - Google Patents

Improvements in Rock-drilling and other Pneumatic and like Tools.

Info

Publication number
GB191502779A
GB191502779A GB191502779DA GB191502779A GB 191502779 A GB191502779 A GB 191502779A GB 191502779D A GB191502779D A GB 191502779DA GB 191502779 A GB191502779 A GB 191502779A
Authority
GB
United Kingdom
Prior art keywords
piston
rock
drilling
pneumatic
tools
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
James Hamilton Anstrut Macadam
John Thirlwell
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
Publication of GB191502779A publication Critical patent/GB191502779A/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
    • E21B1/00—Percussion drilling
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
    • E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure

Landscapes

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

Abstract

2779. Macadam, J. H. A., and Thirlwell, J. Feb. 20. Percussive drills.-In a percussive rock drill, a tube 13 screwed into the piston 6 is rifled and passes through a nut 14, which is correspondingly rifled and non-rotatably mounted in a ratchet-wheel 15 controlled by pawls, so that, during movement in one direction, the tube 13, piston 6, piston-rod 11, and tool are rotated. T h e cylinder has a recessed projection 4 to carry the feed-nut for the feed-screw.
GB191502779D 1915-02-20 1915-02-20 Improvements in Rock-drilling and other Pneumatic and like Tools. Expired GB191502779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191502779T 1915-02-20

Publications (1)

Publication Number Publication Date
GB191502779A true GB191502779A (en) 1916-02-17

Family

ID=32649052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191502779D Expired GB191502779A (en) 1915-02-20 1915-02-20 Improvements in Rock-drilling and other Pneumatic and like Tools.

Country Status (1)

Country Link
GB (1) GB191502779A (en)

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