GB876766A - Improvements in or relating to drill hammers - Google Patents
Improvements in or relating to drill hammersInfo
- Publication number
- GB876766A GB876766A GB40418/58A GB4041858A GB876766A GB 876766 A GB876766 A GB 876766A GB 40418/58 A GB40418/58 A GB 40418/58A GB 4041858 A GB4041858 A GB 4041858A GB 876766 A GB876766 A GB 876766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- supply pipe
- hammer
- drill steel
- small
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 239000000463 material 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
- 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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
876,766. Percussive tools. FLOTTMANN, F. H., [trading as INGENIEURBURO DIPLING. F. H. FLOTTMANN.]. Dec. 15, 1958 [Dec. 14, 1957; Feb. 10, 1958; Sept. 12, 1958], No. 40418/58. Class 124. A drill hammer has a small tube in a central clearing water supply pipe, the end of the tube being forced by water pressure into a recess in the end of the drill steel. As shown, a central water supply pipe 2 passing through the hammer piston 1 has a small pipe 3, for example of plastic material, fitted internally, the end 6 of conical or globular shape entering a recess 7 in the drill steel, and making a watertight connection therewith. The small tube may be fitted externally of the supply pipe and in either case a spring may be used to assist the water pressure in urging the tube towards the drill steel. A bush 11 may be provided with grooves to allow any air leaking into the space in front of the hammer to escape. The end of the tube may be removable and may be screwed or clipped on to the tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE876766X | 1957-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB876766A true GB876766A (en) | 1961-09-06 |
Family
ID=6817816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40418/58A Expired GB876766A (en) | 1957-12-14 | 1958-12-15 | Improvements in or relating to drill hammers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB876766A (en) |
-
1958
- 1958-12-15 GB GB40418/58A patent/GB876766A/en not_active Expired
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