GB928736A - An improved reciprocating rock drill - Google Patents
An improved reciprocating rock drillInfo
- Publication number
- GB928736A GB928736A GB2037/60A GB203760A GB928736A GB 928736 A GB928736 A GB 928736A GB 2037/60 A GB2037/60 A GB 2037/60A GB 203760 A GB203760 A GB 203760A GB 928736 A GB928736 A GB 928736A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- piston
- tube
- pressure
- steel
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 6
- 229910000831 Steel Inorganic materials 0.000 abstract 4
- 239000010959 steel Substances 0.000 abstract 4
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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
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)
Abstract
928,736. Percussive tools. BOHLER & CO. A.G. GEB. Jan. 20, 1960 [Jan. 28, 1959], No. 2037/60. Class 124. A percussive drill comprises a drill piston, and a water duct extending from the back-head, through the piston, to a duct in the steel shank, the end of the tube in the back-head being connected to a piston defining a pressure chamber on the side remote from the drill piston in which water pressure urges the other end of the tube into contact with the steel shank. As shown, water under pressure enters a chamber formed above a piston 5 which is connected to a tube 6 extending through the tool and ending in a flexible portion 14, the end of which enters the water duct in a steel 10. The pressure of water on the piston 5 maintains the end of the tube 14 in water-tight connection with the steel, but, if desired, a spring 9 may be inserted in the chamber to augment the water pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT61259A AT233499B (en) | 1959-01-28 | 1959-01-28 | Flushing arrangement for rock drills |
Publications (1)
Publication Number | Publication Date |
---|---|
GB928736A true GB928736A (en) | 1963-06-12 |
Family
ID=3495199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2037/60A Expired GB928736A (en) | 1959-01-28 | 1960-01-20 | An improved reciprocating rock drill |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT233499B (en) |
FR (1) | FR1245994A (en) |
GB (1) | GB928736A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1232090B (en) * | 1961-02-27 | 1967-01-12 | Ingersoll Rand Co | Hammer drill |
FR2316431A1 (en) * | 1975-07-04 | 1977-01-28 | Montabert Roger | IMPROVEMENT IN DRILLING HAMMERS |
-
1959
- 1959-01-28 AT AT61259A patent/AT233499B/en active
-
1960
- 1960-01-20 GB GB2037/60A patent/GB928736A/en not_active Expired
- 1960-01-23 FR FR816500A patent/FR1245994A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1245994A (en) | 1960-11-10 |
AT233499B (en) | 1964-05-11 |
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