GB512932A - Improvements in or relating to the application of power to hand tools such as drilling machines, coal cutters and the like and mechanism for operating against varying loads - Google Patents
Improvements in or relating to the application of power to hand tools such as drilling machines, coal cutters and the like and mechanism for operating against varying loadsInfo
- Publication number
- GB512932A GB512932A GB372338A GB372338A GB512932A GB 512932 A GB512932 A GB 512932A GB 372338 A GB372338 A GB 372338A GB 372338 A GB372338 A GB 372338A GB 512932 A GB512932 A GB 512932A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotation
- drilling
- hand wheel
- casing
- gear
- 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 3
- 239000003245 coal Substances 0.000 title 1
- 241000549194 Euonymus europaeus Species 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 230000000452 restraining effect Effects 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/081—Screw-and-nut feed mechanisms
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)
- Drilling And Boring (AREA)
Abstract
512,932. Drilling - machines. CROFTON & CO. (ENGINEERS), Ltd., C., and MANN, .R. W. Feb, 5, 1938, No. 3723. [Class 83 (iii)] [Also in Group XXIV] In a portable power-driven machine such as a mineral boring or drilling machine, a reaction member is provided between the motor and driven member and is adapted to be held against rotation directly by hand so that the operator may control the rotation of the tool by wholly or partially restraining rotation of the reaction member. The portable drilling- machine comprises casings 1 .. 3 enclosing the driving gear and forming a bearing for one end of the motor shaft 5 which carries a pinion 13 engaging planet pinions 12 mounted on a sleeve 10. The sleeve is provided with a pinion 14 engaging a gear 15 splined at 16a to' the drill &c. spindle 17. The planet pinions 'mesh with internal teeth on a casing 7 rotatably mounted in the casing 1. and having a smooth hand wheel 9 secured thereto. Normally, rotation of the motor will rotate the drill spindle 17 whilst the hand wheel is held stationary by the operator, but if excessive resistance is encountered' the hand wheel may be allowed to rotate more or less and thus relieve the driving torque. If the gearing is other than epicyclic, the reaction member may be attached to the gear-box casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB372338A GB512932A (en) | 1938-02-05 | 1938-02-05 | Improvements in or relating to the application of power to hand tools such as drilling machines, coal cutters and the like and mechanism for operating against varying loads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB372338A GB512932A (en) | 1938-02-05 | 1938-02-05 | Improvements in or relating to the application of power to hand tools such as drilling machines, coal cutters and the like and mechanism for operating against varying loads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB512932A true GB512932A (en) | 1939-09-29 |
Family
ID=9763740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB372338A Expired GB512932A (en) | 1938-02-05 | 1938-02-05 | Improvements in or relating to the application of power to hand tools such as drilling machines, coal cutters and the like and mechanism for operating against varying loads |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB512932A (en) |
-
1938
- 1938-02-05 GB GB372338A patent/GB512932A/en not_active Expired
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