GB772844A - Improvements relating to rock drilling machinery - Google Patents
Improvements relating to rock drilling machineryInfo
- Publication number
- GB772844A GB772844A GB7951/54A GB795154A GB772844A GB 772844 A GB772844 A GB 772844A GB 7951/54 A GB7951/54 A GB 7951/54A GB 795154 A GB795154 A GB 795154A GB 772844 A GB772844 A GB 772844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grooves
- bush
- chuck
- face
- march
- 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
- 239000011435 rock Substances 0.000 title 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Abstract
772,844. Percussive drills. CLIMAX ROCK DRILL & ENGINEERING WORKS, Ltd. March 11, 1955 [March 18, 1954], No. 7951/54. Class 124 A chuck for a drill bit having one or more lugs on the shank has a longitudinal groove for each lug provided in the inner wall leading to a stop face and a circumferential groove, wide enough to accommodate the lug, leading part of the way round the inner wall to a further longitudinal groove extending both forwards and rearwards from the circumferential groove. As shown, two diametrically opposed lugs 4 on a drill shank 3 enter grooves 10 in a chuck. The grooves end at the face of a bush 5 and circumferential grooves 11 formed in the inner end of the chuck lead to two second longitudinal grooves 12 extending forwardly to a face 13 and rearwardly into a slot 14 in the bush 5. The second grooves may lie in a plane at right angles to the plane of the first grooves. Exhaust gas from the tool may escape through grooves 15, 15<SP>1</SP> in the bush 5 into the grooves 14, 12, and to atmosphere through ports 18 and grooves 11 and 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7951/54A GB772844A (en) | 1954-03-18 | 1954-03-18 | Improvements relating to rock drilling machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7951/54A GB772844A (en) | 1954-03-18 | 1954-03-18 | Improvements relating to rock drilling machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB772844A true GB772844A (en) | 1957-04-17 |
Family
ID=9842914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7951/54A Expired GB772844A (en) | 1954-03-18 | 1954-03-18 | Improvements relating to rock drilling machinery |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB772844A (en) |
-
1954
- 1954-03-18 GB GB7951/54A patent/GB772844A/en not_active Expired
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