US172529A - Improvement in bits for rock-drilling - Google Patents
Improvement in bits for rock-drilling Download PDFInfo
- Publication number
- US172529A US172529A US172529DA US172529A US 172529 A US172529 A US 172529A US 172529D A US172529D A US 172529DA US 172529 A US172529 A US 172529A
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- US
- United States
- Prior art keywords
- drilling
- rock
- improvement
- bits
- bit
- 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 - Lifetime
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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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
Definitions
- the object of my invention is to construct an efiicient drill-bit for drilling enlarged holes in rocks, for the reception of the explosive ,material for blasting purnoses, and this ob- J ment of the explosive material.
- This bit consists of a rod of steel, in the present instance of oetangular sectional form, and the lower portion of this rod is flattened and reduced to the shape shown in the drawmg.
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- 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)
Description
JL B. WARING.
BH Fon ROCK DRILLING. "N,172,529. mtentea :an.18,187e.
mma
UNITED S'rA'rEs PATEN'I' OFFICEa JOHN B. WARING, OF NEW YORK, N. Y.
IMPROVEMENT IN BlTS FOR RCK'DRILLING.
Specification forming part of Letters Patent No. 172,529, dated January 18, 1876; application filed January 23, 1875.
To all whom lit may concer'n Be it known that I` JOHN B. WARING, of the city, county, and State of New York, have invented an Improved Bit for Rock-Drilling,
of which the following` is a specification:
The object of my invention is to construct an efiicient drill-bit for drilling enlarged holes in rocks, for the reception of the explosive ,material for blasting purnoses, and this ob- J ment of the explosive material.
I make the drill-bitin the manner shown in the enlarged views, Figures 2, 3, 4, and 5, Fig. 2 being' a side view; Fig. 3. a view of the front edge; Fig. 4, a view of the rear edge, and Fig. 5 an inverted plan view of the cutting-hase. w
This bit consists of a rod of steel, in the present instance of oetangular sectional form, and the lower portion of this rod is flattened and reduced to the shape shown in the drawmg.
On the inclined Cutting base a are formed a number of V-shaped ribs, which are made tapering from the broad front edge m of the bit to the narrower rear edge a. i
ln the present instance there are four of these ribs, but their number-and size will depend in a great measure on the character of the rock to be drilled.
In the front edge m of the bit there are as many ribs as on the base, (see Fig. 3,) and these rihs coincide with and meet those of the base at the Cutting-edge b, where 'they form sharp Cutting-points.
I claim as my invention- A rock-drilling bit, having on its inclined base a number of cutting-ribs terminating in corresponding ribs on the Cutting-edge b, as set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
J. B. WARING.
Witnesses:
HUBERT HoWsoN., HARRY SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US172529A true US172529A (en) | 1876-01-18 |
Family
ID=2241936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US172529D Expired - Lifetime US172529A (en) | Improvement in bits for rock-drilling |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US172529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787463A (en) * | 1985-03-07 | 1988-11-29 | Flowmole Corporation | Method and apparatus for installment of underground utilities |
| US4867255A (en) * | 1988-05-20 | 1989-09-19 | Flowmole Corporation | Technique for steering a downhole hammer |
-
0
- US US172529D patent/US172529A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787463A (en) * | 1985-03-07 | 1988-11-29 | Flowmole Corporation | Method and apparatus for installment of underground utilities |
| US4867255A (en) * | 1988-05-20 | 1989-09-19 | Flowmole Corporation | Technique for steering a downhole hammer |
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