GB521018A - Improvements in and relating to rock and like drills - Google Patents
Improvements in and relating to rock and like drillsInfo
- Publication number
- GB521018A GB521018A GB3255838A GB3255838A GB521018A GB 521018 A GB521018 A GB 521018A GB 3255838 A GB3255838 A GB 3255838A GB 3255838 A GB3255838 A GB 3255838A GB 521018 A GB521018 A GB 521018A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindle
- drill
- vibration
- reciprocation
- axial
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/025—Surface drives for rotary drilling with a to-and-fro rotation of the tool
Abstract
521,018. Drilling-machines. HOLMAN BROS, Ltd., and RULE, J. Nov. 9, 1938, No. 32558. [Class 83 (iii)] A rotary rock drill, particularly one that employs a diamond core drill, has the spindle oscillated through an arc of about one revolution or less, and at the same time it is given an axial reciprocation or vibration to clear the drill. A fluid pressure motor 11 of the crescent shaped chamber type has its speed regulated by a throttle valve 11c centrifugally controlled at 13 through a rocker 13b. Drive is transmitted to the spindle from a balanced crank 15a through a rack and pinion 16 geared at 19 to the spindle which runs in ball bearings 20 and has a water supply to the drill at 19b. A cam on the end of the spindle, which is splined at 19c to the driving sleeve, engages a roller 24 screw-adjusted at 24b for the axial motion. The handles are in the form of bell cranks, the shorter arms 25b being held against an interposed cushioning washer by springs. This reduces the vibration caused by the longitudinal reciprocation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3255838A GB521018A (en) | 1938-11-09 | 1938-11-09 | Improvements in and relating to rock and like drills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3255838A GB521018A (en) | 1938-11-09 | 1938-11-09 | Improvements in and relating to rock and like drills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB521018A true GB521018A (en) | 1940-05-09 |
Family
ID=10340503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3255838A Expired GB521018A (en) | 1938-11-09 | 1938-11-09 | Improvements in and relating to rock and like drills |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB521018A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021929A1 (en) * | 1999-09-21 | 2001-03-29 | Well Engineering Partners B.V. | Method and device for moving a tube in a borehole in the ground |
-
1938
- 1938-11-09 GB GB3255838A patent/GB521018A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021929A1 (en) * | 1999-09-21 | 2001-03-29 | Well Engineering Partners B.V. | Method and device for moving a tube in a borehole in the ground |
| US6796390B1 (en) | 1999-09-21 | 2004-09-28 | Shell Oil Company | Method and device for moving a tube in a borehole in the ground |
| CN100416039C (en) * | 1999-09-21 | 2008-09-03 | 威尔工程合作公司 | Method and device for moving tube in borehole in ground |
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