GB624221A - Improvements in or relating to fluid operated rock drills - Google Patents
Improvements in or relating to fluid operated rock drillsInfo
- Publication number
- GB624221A GB624221A GB15808/47A GB1580847A GB624221A GB 624221 A GB624221 A GB 624221A GB 15808/47 A GB15808/47 A GB 15808/47A GB 1580847 A GB1580847 A GB 1580847A GB 624221 A GB624221 A GB 624221A
- Authority
- GB
- United Kingdom
- Prior art keywords
- passage
- valve
- drill
- piston
- cavity
- 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
Links
- 239000012530 fluid Substances 0.000 title abstract 6
- 239000011435 rock Substances 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
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)
Abstract
624.221. Percussive drills. INGERSOLLRAND CO. June 16, 1947, No. 15808. Convention date, July 23, 1942. [Class 124] In a fluid actuated rock drill a passage is provided from the exhaust port to a cavity in the drill body communicating with the drill hole and a valve is arranged selectively to prevent exhaust fluid passing to atmosphere, to cause the piston and distributing valves to assume positions for charging one end of the piston chamber and permit the pressure fluid to flow from such end of the piston chamber through the passage and into the cavity. As shown, pressure fluid enters a drill body through a valve 55 and is fed to either side of a piston 27 through distributing valves 40 and ports 41 and 42, finally exhausting through a port 26 and a valve 60. A passage 58 leads from the exhaust port to a cavity 31. Fig. 1 shows the normal operating position of the drill. If it is desired to blow out the drill hole the valve 60 is moved to the position of Fig. 2 which opens the face 44 of the distributing valve to atmosphere, causes the piston to assume a position in the front of its chamber and allows the pressure fluid to pass through the passage 58 into the cavity 31, finally to the drill hole through the passage 34 in the steel 33. Liquid may be supplied to the drill hole by the tube 52.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US624221XA | 1942-07-23 | 1942-07-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB624221A true GB624221A (en) | 1949-05-31 |
Family
ID=22042383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15808/47A Expired GB624221A (en) | 1942-07-23 | 1947-06-16 | Improvements in or relating to fluid operated rock drills |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB624221A (en) |
-
1947
- 1947-06-16 GB GB15808/47A patent/GB624221A/en not_active Expired
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