GB190926240A - Improvements in Drill Heads. - Google Patents
Improvements in Drill Heads.Info
- Publication number
- GB190926240A GB190926240A GB190926240DA GB190926240A GB 190926240 A GB190926240 A GB 190926240A GB 190926240D A GB190926240D A GB 190926240DA GB 190926240 A GB190926240 A GB 190926240A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindles
- rollers
- grooves
- cup
- lubricant
- 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
- 239000000314 lubricant Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 210000002105 tongue Anatomy 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
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)
- Earth Drilling (AREA)
Abstract
26,240. Hughes, H. R. Nov. 20, 1908, [Convention date]. Bore-hole apparatus.- Relates to drill heads for rock and other substances, of the type carrying frusto-conical rolling cutters. Blocks 1, having spindles 6 for the cutting- rollers 4, are secured to a driving-spindle 3 by a sleeve 2, and may be held against relative lateral movement by tongues and grooves or the like. The spindles 6 are stepped, and project inwards, the rollers 4 thus being prevented from falling off. If a shearing action is required, the axis of each roller extends slightly to one side of the axis of the head. The outer ends of the rollers have grooves or recesses 7 to grind the material ; and the other ends of the chisel teeth 5 are formed as side cutting-edges 5<a>, the hole cut being substantially greater than the head. Water is passed through the driving spindle 3, and passes, preferably through inwardly-directed channels, to the point between the rollers. A cup 10 is provided for compressed lubricant, from which cup ducts 11 with branches 12 pass to the outer surfaces and ends of the spindles 6. Grooves 13, preferably spiral, are provided, in the rollers or on the spindles to spread the lubricant, which is supplied by water pressure only or by a plunger 14 pressed forward by a spring 15 or by water. The spindles may consist of separate pieces 20, Fig. 3, which may contain the lubricant cup, and the cutters may be secured against displacement by screws 21 projecting into grooves 22.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US190926240XA | 1908-11-20 | 1908-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190926240A true GB190926240A (en) | 1910-02-24 |
Family
ID=32596467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190926240D Expired GB190926240A (en) | 1908-11-20 | 1909-11-12 | Improvements in Drill Heads. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190926240A (en) |
-
1909
- 1909-11-12 GB GB190926240D patent/GB190926240A/en not_active Expired
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