GB419246A - Improvements in or relating to drilling and like rotary spindle machines - Google Patents
Improvements in or relating to drilling and like rotary spindle machinesInfo
- Publication number
- GB419246A GB419246A GB601634A GB601634A GB419246A GB 419246 A GB419246 A GB 419246A GB 601634 A GB601634 A GB 601634A GB 601634 A GB601634 A GB 601634A GB 419246 A GB419246 A GB 419246A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drilling
- relating
- crofton
- rotary spindle
- coil spring
- 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 abstract 2
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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/035—Surface drives for rotary drilling with slipping or elastic transmission
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)
- Percussive Tools And Related Accessories (AREA)
Abstract
419,246. Portable drills. CROFTON & CO. (ENGINEERS), Ltd., C., and CROFTON, H. B., 11, Marden Road South, Whitley Bay, Northumberland. Feb. 23, 1934, No. 6016. [Class 83 (iii).] A drilling machine has driving means which allow of considerable relative rotation between the tool socket and the driving mechanism, for example, a coil spring. The machine is similar to that described in Specification 408,977 except that the spindle is arranged for rotary motion only ; the arrangement of the motor 3, toothed reduction gear 5, 4 and coil spring 11 is the same, but the spindle bearings 13, 15 are modified.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB601634A GB419246A (en) | 1934-02-23 | 1934-02-23 | Improvements in or relating to drilling and like rotary spindle machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB601634A GB419246A (en) | 1934-02-23 | 1934-02-23 | Improvements in or relating to drilling and like rotary spindle machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB419246A true GB419246A (en) | 1934-11-08 |
Family
ID=9806899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB601634A Expired GB419246A (en) | 1934-02-23 | 1934-02-23 | Improvements in or relating to drilling and like rotary spindle machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB419246A (en) |
-
1934
- 1934-02-23 GB GB601634A patent/GB419246A/en not_active Expired
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