GB328977A - Improvements in or relating to reciprocating or percussive tools - Google Patents
Improvements in or relating to reciprocating or percussive toolsInfo
- Publication number
- GB328977A GB328977A GB33836/29A GB3383629A GB328977A GB 328977 A GB328977 A GB 328977A GB 33836/29 A GB33836/29 A GB 33836/29A GB 3383629 A GB3383629 A GB 3383629A GB 328977 A GB328977 A GB 328977A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduit
- supply
- holman
- class
- percussive
- 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
- 238000007664 blowing Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 230000001050 lubricating effect Effects 0.000 abstract 2
- 239000011435 rock 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
- E21B21/011—Dust eliminating or dust removing while drilling
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)
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Abstract
328,977. Holman, A. T., and Holman, K. J. Feb. 4, 1929, Divided on 328,685, [Class 12 (ii), Lubricating passages &c.]. Percussive drills. - In rock drills and like percussive tools which are provided with a conduit for conveying compressed air to the inner end of the hollow tool, the air supply thereto is controlled by the main tumbler in a manner whereby the blowing conduit is only open to the supply when the supply of driving fluid to the main cylinder is closed. The blowing conduit 40 is arranged in the bottom of the drill casing and passes by a port 41 to the main valve 24 by which it is controlled. The driving fluid passage 25 enters the valve casing opposite the port 41. The conduit at the front end communicates with an annular chamber 42 between the bush 18 and chuck sleeve 19, and branch pipes 43 lead therefrom to the space behind the anvil block. The oiling conduit 30 and system is identical with that described in Specification 328,685, [Class 12 (ii), Lubricating passages &c.].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33836/29A GB328977A (en) | 1929-02-04 | 1929-02-04 | Improvements in or relating to reciprocating or percussive tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33836/29A GB328977A (en) | 1929-02-04 | 1929-02-04 | Improvements in or relating to reciprocating or percussive tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB328977A true GB328977A (en) | 1930-05-05 |
Family
ID=10358075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33836/29A Expired GB328977A (en) | 1929-02-04 | 1929-02-04 | Improvements in or relating to reciprocating or percussive tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB328977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1176587B (en) * | 1957-10-16 | 1964-08-27 | Preussische Bergwerks Und Huet | Rotary hammer with coaxial detergent tube |
-
1929
- 1929-02-04 GB GB33836/29A patent/GB328977A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1176587B (en) * | 1957-10-16 | 1964-08-27 | Preussische Bergwerks Und Huet | Rotary hammer with coaxial detergent tube |
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