US178220A - Improvement in double-bitted drills - Google Patents
Improvement in double-bitted drills Download PDFInfo
- Publication number
- US178220A US178220A US178220DA US178220A US 178220 A US178220 A US 178220A US 178220D A US178220D A US 178220DA US 178220 A US178220 A US 178220A
- Authority
- US
- United States
- Prior art keywords
- bitted
- double
- improvement
- drills
- drill
- 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
Links
- 238000005553 drilling Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical compound C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
Definitions
- the object of my invention is to provide an easy mode of straightening wells while drilling themthrough-rock or earth, and also for enlarging the same into a cistern when it is desired to keep on hand a large supply of water.
- This I am enabled to accomplish with the double-bitted drill, hereinafter more fully described, consisting of a vertical stem, a, and two curved cutting-bits 0r chisels, b b, constructed as shown in the vertical side view, Figure 1, and front view, Fig. 2, of the accompanying drawing.
- the top of the stem at is provided with an eye, through a hole in which passes a rope, that is prevented from drawing through by a knot upon the under side.
- Thisrope should extend upward over a pulley and connect with any suitable mechanism that will raise the drill and let it fall.
- the bottom of the stem is forked, to receive the bits or chisels forcing them apart in opposite directions, and
- a double-bitted drill consisting of a stem, a, and two curved cutters, b b, pivoted as shown, and operated as and for the purpose herein set forth.
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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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
UNITED STATES PATENT OFFIoEr WILLIAM H. YARBOROUGH, OF SHERMAN, TEXAS.
IMPROVEMENT IN DOUBLE-BITTED DRlLLS.
Specification forming part of Letters Patent No. 178,220, dated May 30, 1876; application filed October 20, 1875.
To all whom it may concern:
Be it known that I, WILLIAM H. YARBOR- 0UGH,of Sherman,Grayson county, and State of Texas, have invented a new and useful Improvement in Double-Bitted Drills, which improvement is fully set forth, in the following specification, reference being had to the accompanyin g drawings. 7
The object of my invention is to provide an easy mode of straightening wells while drilling themthrough-rock or earth, and also for enlarging the same into a cistern when it is desired to keep on hand a large supply of water. This I am enabled to accomplish with the double-bitted drill, hereinafter more fully described, consisting of a vertical stem, a, and two curved cutting-bits 0r chisels, b b, constructed as shown in the vertical side view, Figure 1, and front view, Fig. 2, of the accompanying drawing.
It has not been deemed necessary to show the drill attached to any particular well-boring machine, as it may be operated by any wellknown apparatus for that purpose.
The top of the stem at is provided with an eye, through a hole in which passes a rope, that is prevented from drawing through by a knot upon the under side. Thisrope should extend upward over a pulley and connect with any suitable mechanism that will raise the drill and let it fall. The bottom of the stemis forked, to receive the bits or chisels forcing them apart in opposite directions, and
also forcing their sharp edges against the sides of the well, cutting it away in a circular form, by its weight and momentum. A sufficient quantity being chipped off and mixed with the water, that is always used when drilling in rock, the drill is drawn out and a.
sand-bucket is let down and the drillings taken out, when the operation is repeated.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
A double-bitted drill, consisting of a stem, a, and two curved cutters, b b, pivoted as shown, and operated as and for the purpose herein set forth.
WILLIAM H. YABBOROUGH.
Witnesses:
EMILE J OUVENAL, ALVIN R. ANDREWS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US178220A true US178220A (en) | 1876-05-30 |
Family
ID=2247627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US178220D Expired - Lifetime US178220A (en) | Improvement in double-bitted drills |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US178220A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3522852A (en) * | 1967-08-18 | 1970-08-04 | Trident Ind Inc | Expandable drill bit and reamer construction |
-
0
- US US178220D patent/US178220A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3522852A (en) * | 1967-08-18 | 1970-08-04 | Trident Ind Inc | Expandable drill bit and reamer construction |
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