GB822029A - Improvements in or relating to scroll-type drilling tools - Google Patents
Improvements in or relating to scroll-type drilling toolsInfo
- Publication number
- GB822029A GB822029A GB818256A GB818256A GB822029A GB 822029 A GB822029 A GB 822029A GB 818256 A GB818256 A GB 818256A GB 818256 A GB818256 A GB 818256A GB 822029 A GB822029 A GB 822029A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bit
- scroll
- relating
- spigot
- shank
- 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 1
- 241000242541 Trematoda Species 0.000 abstract 1
- 239000003245 coal Substances 0.000 abstract 1
- 239000011435 rock Substances 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
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
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
822,029. Drills and bits. COAL INDUSTRY (PATENTS) Ltd. March 13, 1957 [March 15, 1956], No. 8182/56. Class 83 (3). A rotary drill-bit for rock has a recess 3 fitting a spigot 2 in a shank 1 and is held by a pin (not shown), passing through a hole 6 in the bit and a slot 7 in the spigot. The recess and spigot are of square crosssection and effect alignment of flukes on the bit and shank. Water is supplied to holes 11 in the bit through an axial hole 12 in the shank.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB818256A GB822029A (en) | 1956-03-15 | 1956-03-15 | Improvements in or relating to scroll-type drilling tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB818256A GB822029A (en) | 1956-03-15 | 1956-03-15 | Improvements in or relating to scroll-type drilling tools |
Publications (1)
Publication Number | Publication Date |
---|---|
GB822029A true GB822029A (en) | 1959-10-21 |
Family
ID=9847410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB818256A Expired GB822029A (en) | 1956-03-15 | 1956-03-15 | Improvements in or relating to scroll-type drilling tools |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB822029A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2149329A (en) * | 1983-10-03 | 1985-06-12 | Kennametal Inc | A two-prong rotary bit, especially for use with roof drills, and insert therefor |
US4550791A (en) * | 1983-10-03 | 1985-11-05 | Kennametal Inc. | Two-prong rotary bit, especially for use with roof drills, and insert therefor |
GB2199520A (en) * | 1986-12-29 | 1988-07-13 | Boart Int Ltd | Boring bit for coal or soft rock |
GB2212091A (en) * | 1987-11-12 | 1989-07-19 | Boart Hardmetals | Drilling equipment |
-
1956
- 1956-03-15 GB GB818256A patent/GB822029A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2149329A (en) * | 1983-10-03 | 1985-06-12 | Kennametal Inc | A two-prong rotary bit, especially for use with roof drills, and insert therefor |
US4550791A (en) * | 1983-10-03 | 1985-11-05 | Kennametal Inc. | Two-prong rotary bit, especially for use with roof drills, and insert therefor |
GB2199520A (en) * | 1986-12-29 | 1988-07-13 | Boart Int Ltd | Boring bit for coal or soft rock |
GB2212091A (en) * | 1987-11-12 | 1989-07-19 | Boart Hardmetals | Drilling equipment |
GB2212091B (en) * | 1987-11-12 | 1992-01-22 | Boart Hardmetals | Drilling equipment |
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