GB191312560A - Improvements in Roller Boring Drills. - Google Patents
Improvements in Roller Boring Drills.Info
- Publication number
- GB191312560A GB191312560A GB191312560DA GB191312560A GB 191312560 A GB191312560 A GB 191312560A GB 191312560D A GB191312560D A GB 191312560DA GB 191312560 A GB191312560 A GB 191312560A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- drill
- head
- roller
- cutting
- 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
- 239000011324 bead Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B10/10—Roller bits with roller axle supported at both ends
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
12,560. Hughes, H. R. May 29. Bore-hole apparatus.- A roller boring - drill comprises a head, a revoluble cutter extending diametrically across the head, and side cutters revolving in planes converging into the head, all but the active portions of the drill being housed in the head. As shown, the drill bead A carries cutting-rollers B, C on spindles 11, and also carries, on an horizontal shaft 3, tapered cutting- rollers D, E with interposed washers 7; the rollers D, E form a conical recess and tte rollers B, C cut a path around the recess, the teeth 9 of the latter rollers also cleaning the side of the hole. The cutting-surface of the roller C is wider and extends farther from the drill axis than that of the roller B, so as to cut a hole which allows clearance for the drill, or to under-ream a hole. The rollers B, C have conical recesses to receive wearing-blocks 10, between which b'ocks and washers 15 the rollers are secured by threaded spindles 11 which are locked by set-screws 16. Water passages 18 are provided, and also ducts 17 by which lubricant is led to the cutting-rollers from a holder secured to a flange 2. In a modification, the blocks 10 are provided with roller bearings or other frictionreducing devices.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191312560T | 1913-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191312560A true GB191312560A (en) | 1914-05-28 |
Family
ID=32371298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191312560D Expired GB191312560A (en) | 1913-05-29 | 1913-05-29 | Improvements in Roller Boring Drills. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191312560A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102400646A (en) * | 2011-11-30 | 2012-04-04 | 四川深远石油钻井工具有限公司 | Composite bit formed by rotary cut bit and roller bit |
-
1913
- 1913-05-29 GB GB191312560D patent/GB191312560A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102400646A (en) * | 2011-11-30 | 2012-04-04 | 四川深远石油钻井工具有限公司 | Composite bit formed by rotary cut bit and roller bit |
CN102400646B (en) * | 2011-11-30 | 2015-05-20 | 四川深远石油钻井工具股份有限公司 | Composite bit formed by rotary cut bit and roller bit |
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