GB962127A - Earth and the like boring or drilling apparatus - Google Patents
Earth and the like boring or drilling apparatusInfo
- Publication number
- GB962127A GB962127A GB4675461A GB4675461A GB962127A GB 962127 A GB962127 A GB 962127A GB 4675461 A GB4675461 A GB 4675461A GB 4675461 A GB4675461 A GB 4675461A GB 962127 A GB962127 A GB 962127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- ports
- air
- piston
- chamber
- 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
- 238000005553 drilling Methods 0.000 title abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
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)
- Earth Drilling (AREA)
Abstract
962,127. Percussive drills. ENGLISH DRILLING EQUIPMENT CO. Ltd., and F. WALMSLEY. March 18, 1963 [Dec. 29, 1961], No. 46754/61. Heading B4C. [Also in Division E1] A pneumatic earth boring drill comprises a cylinder a adapted for connection to a drill string (not shown), a hammer-piston k in the cylinder, inlet and outlet ports r, s in the cylinder wall, and passages m, o in the piston for flow of air from and to the ports, the opening and closing of the ports being controlled by the piston. The drill string which is rotated is fixed to a connector c attached to a cushion assembly d which in turn is fixed to the cylinder, the connections being capable of resisting torque. Air from the drill string passes through passages c<SP>2</SP>, b<SP>2</SP> to an annular chamber e connected to the inlet ports r. The outlet ports s lead to an annular chamber e<SP>1</SP> connected to a passage f<SP>1</SP> through which air is discharged to remove cuttings and cool the bit g which is rotationally fixed to cylinder but has limited axial movement relative to the cylinder. In the lower position of the piston shown, air from the ports r passes through the passage m to the cylinder chamber n to raise the piston and air from the cylinder chamber p passes through the passage o to the ports s for exhaust. In the upper position of the piston, air from the ports r flows through the passage m to the chamber p and air from the chamber n is exhausted through the ports s. In a modification (Figs. 3, 4, not shown), the positions of the inlet and outlet ports are reversed. In the construction shown in Fig. 5 the piston 19 strikes a member 17 rotationally fixed to the cylinder 2 but having a limited axial movement relative thereto, and the member 17 is connected to the drill string which carries the bit. The cylinder is rotated by a shaft 3 and air is supplied to and exhausted from the cylinder by a non-rotary sleeve 28 having supply and exhaust connections 34, 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4675461A GB962127A (en) | 1961-12-29 | 1961-12-29 | Earth and the like boring or drilling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4675461A GB962127A (en) | 1961-12-29 | 1961-12-29 | Earth and the like boring or drilling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB962127A true GB962127A (en) | 1964-06-24 |
Family
ID=10442461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4675461A Expired GB962127A (en) | 1961-12-29 | 1961-12-29 | Earth and the like boring or drilling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB962127A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662180A (en) * | 1995-10-17 | 1997-09-02 | Dresser-Rand Company | Percussion drill assembly |
| US5957220A (en) * | 1995-10-17 | 1999-09-28 | Dresser-Rand Company | Percussion drill assembly |
| US7040417B2 (en) | 2003-12-11 | 2006-05-09 | Cct Technologies, L.L.C. | Drilling systems |
| CN101832099A (en) * | 2010-04-03 | 2010-09-15 | 金小明 | Special drilling machine applied to coal mine getting working face |
| GB2620417A (en) * | 2022-07-07 | 2024-01-10 | Rotojar Innovations Ltd | Drilling apparatus |
-
1961
- 1961-12-29 GB GB4675461A patent/GB962127A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662180A (en) * | 1995-10-17 | 1997-09-02 | Dresser-Rand Company | Percussion drill assembly |
| US5957220A (en) * | 1995-10-17 | 1999-09-28 | Dresser-Rand Company | Percussion drill assembly |
| US7040417B2 (en) | 2003-12-11 | 2006-05-09 | Cct Technologies, L.L.C. | Drilling systems |
| CN101832099A (en) * | 2010-04-03 | 2010-09-15 | 金小明 | Special drilling machine applied to coal mine getting working face |
| CN101832099B (en) * | 2010-04-03 | 2013-01-23 | 金小明 | Special drilling machine applied to coal mine getting working face |
| GB2620417A (en) * | 2022-07-07 | 2024-01-10 | Rotojar Innovations Ltd | Drilling apparatus |
| WO2024008585A1 (en) * | 2022-07-07 | 2024-01-11 | Rotojar Innovations Limited | Percussive drilling apparatus |
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