GB735969A - Improvements relating to pneumatic drills or hammers - Google Patents
Improvements relating to pneumatic drills or hammersInfo
- Publication number
- GB735969A GB735969A GB18350/53A GB1835053A GB735969A GB 735969 A GB735969 A GB 735969A GB 18350/53 A GB18350/53 A GB 18350/53A GB 1835053 A GB1835053 A GB 1835053A GB 735969 A GB735969 A GB 735969A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bit
- bores
- piston
- chamber
- suction
- 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
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000428 dust 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
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
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
735,969. Percussive tools. JOLY, R. S. July 2, 1953 [July 4, 1952], No. 18350/53. Class 124. A pneumatic percussive drill having a hollow bit carried by a piston moving in a cylindrical support is provided with a duct generating suction through the bit by means of air radially deflected at the tool base towards a chamber having an exhaust orifice, the duct and chamber being arranged within the zone of a conical wedge holding the bit in the piston. As shown, a bit 1 has a bore 7 and radial holes 6 in a tapered portion holding the bit in a piston 3. Holes 8 in the piston lead from a chamber 5 in the piston to a chamber 9 in the support 4. Bores 11, 10 lead from the live air side of the piston to the chamber 9, terminating close to the bores 8 and setting up a suction effect through bores 8, chamber 5, and bores 6 and 7, thus drawing dust from the cutting edge of the bit and discharging it through an exhaust outlet 15. In a modification, Fig. 3, the bit is screwed to a tapered portion 16 having bores 20 from the front end terminating in radial bores 21a. A central bore 18 from the live air side of the piston also terminates in the bores 21a and sets up a suction through the bit. Washers 13, 14 in each modification prevent escape of air.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT735969X | 1952-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB735969A true GB735969A (en) | 1955-08-31 |
Family
ID=11315335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18350/53A Expired GB735969A (en) | 1952-07-04 | 1953-07-02 | Improvements relating to pneumatic drills or hammers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB735969A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980001838A1 (en) * | 1979-02-26 | 1980-09-04 | Luossavaara Kiirunavaara Ab | Device for sampling dust from minerals |
| EP3333356A1 (en) * | 2016-12-07 | 2018-06-13 | BAUER Maschinen GmbH | Rotary drilling tool and method for creating a hole in the soil |
-
1953
- 1953-07-02 GB GB18350/53A patent/GB735969A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980001838A1 (en) * | 1979-02-26 | 1980-09-04 | Luossavaara Kiirunavaara Ab | Device for sampling dust from minerals |
| US4558752A (en) * | 1979-02-26 | 1985-12-17 | Luossavaara Kiirunavaara Ab | Device for obtaining dust from minerals |
| EP3333356A1 (en) * | 2016-12-07 | 2018-06-13 | BAUER Maschinen GmbH | Rotary drilling tool and method for creating a hole in the soil |
| WO2018103919A1 (en) * | 2016-12-07 | 2018-06-14 | Bauer Maschinen Gmbh | Drilling tool and method for producing a bore in the ground |
| CN110036177A (en) * | 2016-12-07 | 2019-07-19 | 包尔机械有限公司 | For generating the boring bar tool and method in hole in ground |
| US10927624B2 (en) | 2016-12-07 | 2021-02-23 | Bauer Maschinen Gmbh | Rotary drilling tool and method for producing a bore in the ground |
| CN110036177B (en) * | 2016-12-07 | 2021-06-04 | 包尔机械有限公司 | Rotary drilling tool and method for producing a hole in the ground |
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