GB190912893A - Improvements in Hammer Drills. - Google Patents
Improvements in Hammer Drills.Info
- Publication number
- GB190912893A GB190912893A GB190912893DA GB190912893A GB 190912893 A GB190912893 A GB 190912893A GB 190912893D A GB190912893D A GB 190912893DA GB 190912893 A GB190912893 A GB 190912893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tool
- supply
- exhaust
- feed
- ports
- 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
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)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
12,893. Lake, W. E., [Ingersoll-Rand Co.]. June 1. Percussive drills.-In hammer drills &c. with fluid-pressure feeds, the controlling-valve 8 is arranged so that in one position it closes direct communication from the supply 16 to the tool 1 and opens communication from the supply to the tool through the feeding-means 23. The valve is held in one of four positions by a spring-pressed pin 15 engaging recesses in the handle 10. In the first position, Figs. 1, 2, 3, and 4, the valve closes supply to the feedcylinder 23 and the tool 1, opens the feedcylinder to exhaust through ports 22, 24, and opens the tool to exhaust through ports 20, 21, 19. When moving to the second position, Figs. 6, 7, and 8, supply is gradually opened to the feed-cylinder through a port 29 and graduated ports 26, and from the feed-cylinder through ports 30, 32, 27 to the tool, direct supply to the tool and exhaust being closed. In the third position, Figs. 10, 11, and 12, the supply to the tool and the exhaust are closed, and supply to the feed-cylinder is opened through a port 31, a cut-away part of the valve, and the port 30. In the fourth position, Figs. 14, 15, and 16, exhaust is closed, and direct supply is opened to the feed-cylinder and tool through the ports 31, 30 and 29, 27 respectively. Either the feedcylinder or the feed-piston may be secured to the head block 2, the other member being movable and forming the rear support.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190912893T | 1909-06-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190912893A true GB190912893A (en) | 1910-06-01 |
Family
ID=32555208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190912893D Expired GB190912893A (en) | 1909-06-01 | 1909-06-01 | Improvements in Hammer Drills. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190912893A (en) |
-
1909
- 1909-06-01 GB GB190912893D patent/GB190912893A/en not_active Expired
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