GB401892A - Improvements in hammer rock drills - Google Patents
Improvements in hammer rock drillsInfo
- Publication number
- GB401892A GB401892A GB33265/32A GB3326532A GB401892A GB 401892 A GB401892 A GB 401892A GB 33265/32 A GB33265/32 A GB 33265/32A GB 3326532 A GB3326532 A GB 3326532A GB 401892 A GB401892 A GB 401892A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contained
- motive fluid
- chuck
- nov
- passages
- 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 abstract 2
- 239000012530 fluid Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000004519 grease Substances 0.000 abstract 2
- 239000000314 lubricant Substances 0.000 abstract 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000004575 stone 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)
- Lubricants (AREA)
- Earth Drilling (AREA)
Abstract
401,892. Percussive drills. POTTER, H. S., Lower Ross Street, Doornfontein, Johannesburg, South Africa. Nov. 24, 1932, No. 33265. Convention date, Nov. 25, 1931. [Class 124.] The supply of motive fluid and of cleaning water to a rock drill are simultaneously controlled by the valve 8, the cam surface 23 of which pinches the water hose 16. This valve is situated at about the middle of length of the machine. An ejector 65, Fig. V, worked by exhaust motive fluid from the port 64 draws water which has leaked into the chuck 66 through the passages 69, 71 to the atmosphere through the orifice 74. The tool chuck 61 has a hard metal bearing 85 at its front end. Grease for the front end, chuck, &c. is contained in longitudinal grooves 53 under the flexible sleeve 51, each groove being connected to a separate part which it is desired to lubricate, the external surface of the sleeve bearing an indication of the destination of the grease contained in the groove under. Thick lubricant for the twist mechanism is contained in the handle 7 and is forced through the passages 44, 49 by the spring pressed plunger 43. Thin lubricant is contained in the handle 6 and is fed by gravity to a wad surrounding the tube 38, Fig. VII, in the motive fluid line. Specifications 157,487, 251,686, 320,907 and 338,792, [all in Class 124, Stone &c.], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA401892X | 1931-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB401892A true GB401892A (en) | 1933-11-23 |
Family
ID=25560310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33265/32A Expired GB401892A (en) | 1931-11-25 | 1932-11-24 | Improvements in hammer rock drills |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB401892A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2725854A (en) * | 1953-04-20 | 1955-12-06 | Chicago Pneumatic Tool Co | Combination air and water valve for rock drills |
-
1932
- 1932-11-24 GB GB33265/32A patent/GB401892A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2725854A (en) * | 1953-04-20 | 1955-12-06 | Chicago Pneumatic Tool Co | Combination air and water valve for rock drills |
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