GB138556A - Improvements in valves and valve gear for rock drills and like percussive tools - Google Patents
Improvements in valves and valve gear for rock drills and like percussive toolsInfo
- Publication number
- GB138556A GB138556A GB18645/19A GB1864519A GB138556A GB 138556 A GB138556 A GB 138556A GB 18645/19 A GB18645/19 A GB 18645/19A GB 1864519 A GB1864519 A GB 1864519A GB 138556 A GB138556 A GB 138556A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- fluid
- valves
- cylinder
- valve gear
- 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
- 239000011435 rock Substances 0.000 title 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 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)
- Compressor (AREA)
Abstract
138,556. Rayner, G. H. T., and Rayner, P. July 28, 1919. Fluid-actuated gears.-The valve is provided with an enlarged central head a, which controls the admission and upon which the fluid-pressure acts to lock the valve, and with ends b, b<1> which control the exhaust through annular ports g<2>, h<2>. The ends of the valve chambers communicate with the cylinder by ports g, g<1>, h, h'. When the piston during its motion to the left uncovers the port g, fluid-pressure acts upon the head b, and this together with the compression in the right-hand end of the cylinder acting on the annular collar a throws the valve. In a modification, the shape of the valve is modified and additional ports provided, to provide a supplementary exhaust from each end of the cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB18645/19A GB138556A (en) | 1919-07-28 | 1919-07-28 | Improvements in valves and valve gear for rock drills and like percussive tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB18645/19A GB138556A (en) | 1919-07-28 | 1919-07-28 | Improvements in valves and valve gear for rock drills and like percussive tools |
Publications (1)
Publication Number | Publication Date |
---|---|
GB138556A true GB138556A (en) | 1920-02-12 |
Family
ID=10116007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18645/19A Expired GB138556A (en) | 1919-07-28 | 1919-07-28 | Improvements in valves and valve gear for rock drills and like percussive tools |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB138556A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2453812A (en) * | 1944-05-15 | 1948-11-16 | Chrysler Corp | Actuating valve with opposed unequal areas |
-
1919
- 1919-07-28 GB GB18645/19A patent/GB138556A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2453812A (en) * | 1944-05-15 | 1948-11-16 | Chrysler Corp | Actuating valve with opposed unequal areas |
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