GB740468A - Improvements in and relating to drilling in rock and other hard substances - Google Patents
Improvements in and relating to drilling in rock and other hard substancesInfo
- Publication number
- GB740468A GB740468A GB3133/53A GB313353A GB740468A GB 740468 A GB740468 A GB 740468A GB 3133/53 A GB3133/53 A GB 3133/53A GB 313353 A GB313353 A GB 313353A GB 740468 A GB740468 A GB 740468A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rock
- drill
- per minute
- rotary
- speed
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B6/00—Drives for drilling with combined rotary and percussive action
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
740,468. Percussive drills. MEUTSCH, A. Feb. 4, 1953 [Nov. 25, 1952], No. 3133/53. Drawings to Specification. Class 124. Rock and like hard material is bored by a rotary and percussive drill in which the speed of rotation and the number of blows struck per minute is such that the notch spacing at the periphery of the drill is regulated according to the hardness of the rock and is for'soft rock 6-9 m.ms, for medium rock 3-6 m.ms, and for hard rock 1-3 m.ms. A drill of the type described in Specification 686,185 having valves controlling the supply of air to the rotary motor and the percussive motor may be used, and such drill may be modified by the addition of gearing to the rotary motor. With 3,000 blows per minute the rotary speed may be 220 r.p.m. and with 6,000 blows per minute the rotary speed may be 440 r.p.m. for a rock having a hardness of 70 Shore. A formula is given for determining the notching space from the drill diameter, the number of blows per minute, and speed of rotation. Reference has been directed by the Comptroller to Specification 686,185.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE740468X | 1952-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB740468A true GB740468A (en) | 1955-11-16 |
Family
ID=6643694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3133/53A Expired GB740468A (en) | 1952-11-25 | 1953-02-04 | Improvements in and relating to drilling in rock and other hard substances |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB740468A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3030715A (en) * | 1959-09-10 | 1962-04-24 | Albert G Bodine | Sonic wave earth digging and moving machines |
| US3211243A (en) * | 1960-06-08 | 1965-10-12 | Jr Albert G Bodine | Sonic drilling by rotating the tool |
-
1953
- 1953-02-04 GB GB3133/53A patent/GB740468A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3030715A (en) * | 1959-09-10 | 1962-04-24 | Albert G Bodine | Sonic wave earth digging and moving machines |
| US3211243A (en) * | 1960-06-08 | 1965-10-12 | Jr Albert G Bodine | Sonic drilling by rotating the tool |
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