GB892892A - Improvements in or relating to percussive drill bits - Google Patents
Improvements in or relating to percussive drill bitsInfo
- Publication number
- GB892892A GB892892A GB481459A GB481459A GB892892A GB 892892 A GB892892 A GB 892892A GB 481459 A GB481459 A GB 481459A GB 481459 A GB481459 A GB 481459A GB 892892 A GB892892 A GB 892892A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shank
- face
- relating
- insert
- percussive
- 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
- 238000005219 brazing Methods 0.000 abstract 1
- 238000004519 manufacturing process 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
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/58—Chisel-type inserts
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
892,892. Percussive tools. PRODUCTION TOOL ALLOY CO. May 10, 1960 [Feb. 11, 1959], No. 4814/59. Class 124. A percussive drill insert has cutting edges extending in at least two directions across the front face and the rear face has the same shape and dimensions as the end face of the shank or drill rod to which it is secured by brazing. As shown, a cruciform drill insert 23 has shallow V-shaped projections 24 on its near face which are accommodated in similar V-shaped recesses 22 in the end of a shank 21, a locating pin 25 being provided and the insert brazed to the shank. The interengaging projections and recesses may be of any desired shape, e.g. flat, Fig. 1 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB481459A GB892892A (en) | 1959-02-11 | 1959-02-11 | Improvements in or relating to percussive drill bits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB481459A GB892892A (en) | 1959-02-11 | 1959-02-11 | Improvements in or relating to percussive drill bits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB892892A true GB892892A (en) | 1962-04-04 |
Family
ID=9784309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB481459A Expired GB892892A (en) | 1959-02-11 | 1959-02-11 | Improvements in or relating to percussive drill bits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB892892A (en) |
-
1959
- 1959-02-11 GB GB481459A patent/GB892892A/en not_active Expired
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