GB325383A - Improved bit for rock drills - Google Patents
Improved bit for rock drillsInfo
- Publication number
- GB325383A GB325383A GB4440/29A GB444029A GB325383A GB 325383 A GB325383 A GB 325383A GB 4440/29 A GB4440/29 A GB 4440/29A GB 444029 A GB444029 A GB 444029A GB 325383 A GB325383 A GB 325383A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bit
- rock drills
- improved bit
- cutter
- drills
- 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
- 239000002184 metal 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
- E21B10/44—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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
325,383. Siemens - Schuckertwerke Akt.-Ges. Jan. 31, 1929, [Convention date]. Drills and cutters. - A bit for a rotary rock drill has an undivided cutter 13 of chilled metal soldered into a transverse slot in the end of the bit 12. Shoulders 14 project upwards from the bit to support the cutter behind the cutting edges and have inclined rear surfaces making an angle with the axis of the bit. The bit is stated to be capable of a high speed of rotation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE325383X | 1929-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB325383A true GB325383A (en) | 1930-02-20 |
Family
ID=6182857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4440/29A Expired GB325383A (en) | 1929-01-31 | 1929-02-09 | Improved bit for rock drills |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB325383A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2673714A (en) * | 1950-08-05 | 1954-03-30 | John M Hargrave | Rock or masonry drill |
US2902260A (en) * | 1957-07-16 | 1959-09-01 | Carl V Tilden | Drill bit |
-
1929
- 1929-02-09 GB GB4440/29A patent/GB325383A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2673714A (en) * | 1950-08-05 | 1954-03-30 | John M Hargrave | Rock or masonry drill |
US2902260A (en) * | 1957-07-16 | 1959-09-01 | Carl V Tilden | Drill bit |
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