GB101969A - Improvements in Pneumatic Drills. - Google Patents

Improvements in Pneumatic Drills.

Info

Publication number
GB101969A
GB101969A GB14684/16A GB1468416A GB101969A GB 101969 A GB101969 A GB 101969A GB 14684/16 A GB14684/16 A GB 14684/16A GB 1468416 A GB1468416 A GB 1468416A GB 101969 A GB101969 A GB 101969A
Authority
GB
United Kingdom
Prior art keywords
cylinder
ports
feed
drill
secured
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
GB14684/16A
Inventor
James Charles Hoskins Vaught
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 GB101969A publication Critical patent/GB101969A/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder

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)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)

Abstract

101,969. Vaught, J. C. H. Oct. 23, 1915. [Convention date]. Percussive drills.- A pneumatic - hammer drill is provided with an air-operated feed and withdrawal mechanism, the fluid being supplied to the feed cylinder independently of the hammer and from the same common source, and passing through passages carried on the exterior wall of the cylinder. The drill 1 is secured to the feed-cylinder 6 by a pin 9, and the feedpiston rod 14 is secured to a head 20 which is rigidly fixed to the cradle 16. The feed-cylinder ports 23, 24a may be formed by brazing or welding a tube or trough to the cylinder, and lead to a valve-chest 24 similarly secured to the cylinder and constantly receiving fluid under pressure through a conduit 46 from the main valve-chest 2. A spring-pressed valve 29 is arranged in the valvechest 24 and is adapted to close all the ports, or to open either of the ports 23, 24<a> to the inlet 25, while the other of the two ports is open to an exhaust port 33a or 28. When the drill is not operating, the cylinder 6 is locked to the cradle by a screw.
GB14684/16A 1915-10-23 1916-10-16 Improvements in Pneumatic Drills. Expired GB101969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US101969XA 1915-10-23 1915-10-23

Publications (1)

Publication Number Publication Date
GB101969A true GB101969A (en) 1917-08-16

Family

ID=32295939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14684/16A Expired GB101969A (en) 1915-10-23 1916-10-16 Improvements in Pneumatic Drills.

Country Status (1)

Country Link
GB (1) GB101969A (en)

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