GB707255A - Improvements in internal combustion drills - Google Patents
Improvements in internal combustion drillsInfo
- Publication number
- GB707255A GB707255A GB25001/51A GB2500151A GB707255A GB 707255 A GB707255 A GB 707255A GB 25001/51 A GB25001/51 A GB 25001/51A GB 2500151 A GB2500151 A GB 2500151A GB 707255 A GB707255 A GB 707255A
- Authority
- GB
- United Kingdom
- Prior art keywords
- space
- air
- flange
- exhaust gas
- port
- 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
- 238000002485 combustion reaction Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
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
- E21B1/00—Percussion drilling
- E21B1/12—Percussion drilling with a reciprocating impulse member
- E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
- E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
- E21B1/32—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure working with pulses
- E21B1/34—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure working with pulses the impulse member being a piston of an internal-combustion engine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (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)
- Portable Nailing Machines And Staplers (AREA)
Abstract
707,255. Percussive tools. WARSOP POWER TOOLS, Ltd. Oct. 24, 1952 [Oct. 25, 1951], No. 25001/51. Class 124 A percussive tool with an internal combustion power unit comprising a single cylinder with a free cylinder head acting as a hammer piston and having a flange of larger diameter operating in an enlarged extension of the engine cylinder, is provided with non- return valves arranged in such a manner that air is admitted to the space above the ham. mer piston and air and exhaust gas are delivered to a space in the front end of the tool and then through a hollow steel. As shown, Fig. 2, during the upward stroke of the hammer piston 14, when exhaust gas is forced through a passage 26 into a space below the flange 14, air is driven out of the space above the flange by way of port 44, non-return valve 54, and pipe 50 to a space 52 from which it flows through a hollow steel 30. On the downward stroke, Fig. 3, exhaust gas is expelled from the lower space through port 46, valve 48, and pipe 50 and air is drawn into the upper space through port 44 and valve 42. The valves may be arranged in a chamber 56 attached to the side of the machine. This arrangement of valves is stated to give a steady stream of clearing gases through the steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25001/51A GB707255A (en) | 1951-10-25 | 1951-10-25 | Improvements in internal combustion drills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25001/51A GB707255A (en) | 1951-10-25 | 1951-10-25 | Improvements in internal combustion drills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB707255A true GB707255A (en) | 1954-04-14 |
Family
ID=10220616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25001/51A Expired GB707255A (en) | 1951-10-25 | 1951-10-25 | Improvements in internal combustion drills |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB707255A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2854962A (en) * | 1955-05-17 | 1958-10-07 | Bergman Gustav Albert | Explosion percussion machines with a freely running striking piston |
| US2923280A (en) * | 1957-10-22 | 1960-02-02 | Kagitani Takeo | Portable power tool |
| US2926637A (en) * | 1956-02-15 | 1960-03-01 | Syntron Co | Portable internal combustion percussion tools |
-
1951
- 1951-10-25 GB GB25001/51A patent/GB707255A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2854962A (en) * | 1955-05-17 | 1958-10-07 | Bergman Gustav Albert | Explosion percussion machines with a freely running striking piston |
| US2926637A (en) * | 1956-02-15 | 1960-03-01 | Syntron Co | Portable internal combustion percussion tools |
| US2923280A (en) * | 1957-10-22 | 1960-02-02 | Kagitani Takeo | Portable power tool |
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