GB280532A - Improvements in apparatus for earth and rock drilling - Google Patents
Improvements in apparatus for earth and rock drillingInfo
- Publication number
- GB280532A GB280532A GB29410/27A GB2941027A GB280532A GB 280532 A GB280532 A GB 280532A GB 29410/27 A GB29410/27 A GB 29410/27A GB 2941027 A GB2941027 A GB 2941027A GB 280532 A GB280532 A GB 280532A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cutter
- head
- cutters
- spindle
- cutting
- 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
- 238000005553 drilling Methods 0.000 title 1
- 238000005520 cutting process Methods 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/12—Roller bits with discs cutters
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
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
280,532. Gildersleeve, A. M., and Dean, C. L. Nov. 10, 1926, [Convention date]. Borehole apparatus. - A drill for boring earth and rock has a number of frusto-conical rolling cutters of which the cutting edges engage the material at an angle less than 90‹ and the axes are skewed relative to their direction of travel; the cutters cut in annular paths of successively increasing diameters. As shown, the drill head 10 carries flat-bottomed frusto-conical cutters 15 - - 18 which cut a hole with a base as in Fig. 4, the cutter 15 cutting the inner annulus and the cutter 16, 17, 18 respectively cutting successively greater annuli. Each cutter has a shank 19 entering a bushed aperture in the head and bearing against a ball 22 which is retained in place by a plate 23; a pin 24, Fig. 3, is pressed by a spring 26 into engagement with an annular recess 25 in the spindle to retain the latter in the head. Each spindle 19 is inclined upwardly in the direction of rotation of the head; the spindle of the cutter 16 also inclines upwardly away from the axis of the head, and those of the cutters 15, 17, 18 towards the axis. More than one cutter may be provided to work in the same annular path. The hole drilled is of larger diameter than the bit. Water &c. is supplied through a central passage 31 and ports 32 - - 36 to remove cuttings &c.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US280532XA | 1926-11-10 | 1926-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB280532A true GB280532A (en) | 1928-12-27 |
Family
ID=21841304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29410/27A Expired GB280532A (en) | 1926-11-10 | 1927-11-03 | Improvements in apparatus for earth and rock drilling |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB280532A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2851214A1 (en) * | 1977-11-29 | 1979-06-07 | Vedecko Vyzk Uhelny Ustav | KNIFE WITH KNIFE HOLDER FOR SEPARATING MATERIAL, ESPECIALLY ROCK |
EP0347033A2 (en) * | 1988-06-16 | 1989-12-20 | Smith International, Inc. | Borehole underreamers |
WO2017017106A1 (en) * | 2015-07-27 | 2017-02-02 | John Barry | Hole forming tool with at least one rotatable cutting member |
CN110410012A (en) * | 2019-07-27 | 2019-11-05 | 邹城兖矿泰德工贸有限公司 | High-strength rock drill device |
-
1927
- 1927-11-03 GB GB29410/27A patent/GB280532A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2851214A1 (en) * | 1977-11-29 | 1979-06-07 | Vedecko Vyzk Uhelny Ustav | KNIFE WITH KNIFE HOLDER FOR SEPARATING MATERIAL, ESPECIALLY ROCK |
EP0347033A2 (en) * | 1988-06-16 | 1989-12-20 | Smith International, Inc. | Borehole underreamers |
EP0347033A3 (en) * | 1988-06-16 | 1991-03-20 | Smith International, Inc. | Borehole underreamers |
WO2017017106A1 (en) * | 2015-07-27 | 2017-02-02 | John Barry | Hole forming tool with at least one rotatable cutting member |
CN110410012A (en) * | 2019-07-27 | 2019-11-05 | 邹城兖矿泰德工贸有限公司 | High-strength rock drill device |
CN110410012B (en) * | 2019-07-27 | 2020-10-09 | 邹城兖矿泰德工贸有限公司 | High-strength rock drilling rig |
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