GB739960A - Improvements in or relating to core samplers - Google Patents
Improvements in or relating to core samplersInfo
- Publication number
- GB739960A GB739960A GB790754A GB790754A GB739960A GB 739960 A GB739960 A GB 739960A GB 790754 A GB790754 A GB 790754A GB 790754 A GB790754 A GB 790754A GB 739960 A GB739960 A GB 739960A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- relating
- slots
- bit
- 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
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 239000010959 steel 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
- E21B10/00—Drill bits
- E21B10/02—Core bits
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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
739,960. Borehole apparatus. CURTIS, L. C. March 18, 1954, No. 7907/54. Class 85. A core sampler comprises a hollow steel cutting bit 11 screwed into the lower end of a core barrel 20 and outwardly tapered at the upper end of its inner surface 14, to cooperate with a core lifter 21, and an adaptor 25 at the upper end for fitting into the chuck of a percussive rock drill. The bit 11 has a number of hard metal inserts 15 shaped to form a series of cutting and reaming edges, and also sludgeflushing slots and water-flushing slots on its outer and inner surfaces respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB790754A GB739960A (en) | 1954-03-18 | 1954-03-18 | Improvements in or relating to core samplers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB790754A GB739960A (en) | 1954-03-18 | 1954-03-18 | Improvements in or relating to core samplers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB739960A true GB739960A (en) | 1955-11-02 |
Family
ID=9842101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB790754A Expired GB739960A (en) | 1954-03-18 | 1954-03-18 | Improvements in or relating to core samplers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB739960A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280925A (en) * | 1961-06-19 | 1966-10-25 | Becker Drilling Alberta Ltd | Method and apparatus for impact drilling of overburden |
| DE1558958B2 (en) * | 1966-02-02 | 1970-08-27 | Becker Drilling Alberta Ltd | Drill bit for a hammering or pushing core drill |
| CN105134082A (en) * | 2015-07-24 | 2015-12-09 | 盐城市鑫源铜业有限公司 | Heavy-duty annular drill bit and manufacturing method for same |
-
1954
- 1954-03-18 GB GB790754A patent/GB739960A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280925A (en) * | 1961-06-19 | 1966-10-25 | Becker Drilling Alberta Ltd | Method and apparatus for impact drilling of overburden |
| DE1558958B2 (en) * | 1966-02-02 | 1970-08-27 | Becker Drilling Alberta Ltd | Drill bit for a hammering or pushing core drill |
| CN105134082A (en) * | 2015-07-24 | 2015-12-09 | 盐城市鑫源铜业有限公司 | Heavy-duty annular drill bit and manufacturing method for same |
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