US48819A - Improvement in drills - Google Patents
Improvement in drills Download PDFInfo
- Publication number
- US48819A US48819A US48819DA US48819A US 48819 A US48819 A US 48819A US 48819D A US48819D A US 48819DA US 48819 A US48819 A US 48819A
- Authority
- US
- United States
- Prior art keywords
- drills
- improvement
- drill
- pivots
- oil
- 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
- 239000011435 rock Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000007787 solid Substances 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
- Thenature of my invention consists in drills working on pivots, with their cutting-edges on their frontend back faces, and dat incline bottoms, so as to cut upward and form a chamber when required to open the ssures of rocks that are frequently beyond the main bore ot' the well, for the purpose of facilitating and increasing the ow of the oil when an oil-ssure cannot otherwise be reached, though within a few inches of the main opening or bore ofthe well, this invention being an improvement on my pivoted chambering-drill patented in 1863.
- Figure 1 represents a side view of the drill
- Fig. 2 a front or back view, showing the cutting-edges
- Fig. 3 shows a side View of the drill expanded with its cuttingedges.
- A represents the rod with a female screw, into which the drillsstem O, with the mulescrew D and shoulder E, is attached.
- G G are the expansion drills attached t0 the stem O by pivots H. These drills have iat incline bottoms, so that the points J J spread and wolk outward. Their sides or front and back faces have three or more angular cuttingedges, I, each edge being a separate drill to cut upward as the bottom spreads and works outward. These drills may be made solid or in three pieces, each pie-ce having its own cuttingedge I.
- the tops of these drills G Work on the pivots H in a socket-joint, the tops being rounding, and the bottom of the stem C being concave for the round tops of the drills to work close, and by the shoulder E to take oft' the jar of the drill from the pivots H.
- Ay .tapering point, K projects downward between The obj ect of making these chambers is to openfmore fissures in the rocks, as the oil-fissuresV ⁇ prove to be more vertical than horizontal, and sometimes extend but a few inches beyond the main bore.
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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)
- Looms (AREA)
Description
UNITED STATES PATENT OFFICE.
LOOMIS G. MARSHALL, OF MOKENA, ILLINOIS.
IMPROVEMENT IN DRILLS.
Specification forming part of Letters Patent No. 48,819, dated July 18, i865.
To all whom it may concern:
Be it known that I, LooMIs G. MARSHALL, ot Mokena, Will county, State of Illinois, have invented new and useful Improvements in Ohambering-Drills for Widening Oavities in Oil-Wells; and I do hereby declare the following to be an exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.
Thenature of my invention consists in drills working on pivots, with their cutting-edges on their frontend back faces, and dat incline bottoms, so as to cut upward and form a chamber when required to open the ssures of rocks that are frequently beyond the main bore ot' the well, for the purpose of facilitating and increasing the ow of the oil when an oil-ssure cannot otherwise be reached, though within a few inches of the main opening or bore ofthe well, this invention being an improvement on my pivoted chambering-drill patented in 1863.
Figure 1 representsa side view of the drill; Fig. 2, a front or back view, showing the cutting-edges. Fig. 3 shows a side View of the drill expanded with its cuttingedges.
A represents the rod with a female screw, into which the drillsstem O, with the mulescrew D and shoulder E, is attached.
G G are the expansion drills attached t0 the stem O by pivots H. These drills have iat incline bottoms, so that the points J J spread and wolk outward. Their sides or front and back faces have three or more angular cuttingedges, I, each edge being a separate drill to cut upward as the bottom spreads and works outward. These drills may be made solid or in three pieces, each pie-ce having its own cuttingedge I. The tops of these drills G Work on the pivots H in a socket-joint, the tops being rounding, and the bottom of the stem C being concave for the round tops of the drills to work close, and by the shoulder E to take oft' the jar of the drill from the pivots H. Ay .tapering point, K, projects downward between The obj ect of making these chambers is to openfmore fissures in the rocks, as the oil-fissuresV` prove to be more vertical than horizontal, and sometimes extend but a few inches beyond the main bore.
What I claim as my invention, and desire to secure by Letters Patent, is-` The construction and combination of the pivoteddrills,havingfrontand back cutting-edges and dat incline bottoms for chambering and cutting outward and upward, as herein deA scribed.
LOOMIS G. MARSHALL.
Witnesses:
J. FRANKLIN BEIGAET, EDM. F. BROWN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US48819A true US48819A (en) | 1865-07-18 |
Family
ID=2118374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US48819D Expired - Lifetime US48819A (en) | Improvement in drills |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US48819A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2597263A (en) * | 1950-12-30 | 1952-05-20 | Elliott Co | Two-arm expanding head tube cleaner |
| US20130149058A1 (en) * | 2010-05-07 | 2013-06-13 | Pat Kelly | Undercutting Tool |
| US11045880B2 (en) * | 2017-07-12 | 2021-06-29 | Gary Richard ADAMS | Boring tool |
-
0
- US US48819D patent/US48819A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2597263A (en) * | 1950-12-30 | 1952-05-20 | Elliott Co | Two-arm expanding head tube cleaner |
| US20130149058A1 (en) * | 2010-05-07 | 2013-06-13 | Pat Kelly | Undercutting Tool |
| JP2013525647A (en) * | 2010-05-07 | 2013-06-20 | オベリックス ホールディングス ピーティーワイ リミテッド | Devaluation tool |
| AU2011250660B2 (en) * | 2010-05-07 | 2016-12-15 | Obelix Holdings Pty Ltd | Undercutting tool |
| US11045880B2 (en) * | 2017-07-12 | 2021-06-29 | Gary Richard ADAMS | Boring tool |
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