US369403A - Expansion well-drill - Google Patents
Expansion well-drill Download PDFInfo
- Publication number
- US369403A US369403A US369403DA US369403A US 369403 A US369403 A US 369403A US 369403D A US369403D A US 369403DA US 369403 A US369403 A US 369403A
- Authority
- US
- United States
- Prior art keywords
- drill
- shank
- threaded
- bit
- expansion
- 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
- 238000010276 construction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 244000191502 Chenopodium murale Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005553 drilling Methods 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
- WITNESSES JV N To B NV PETIRS. Phuwmho n nw. Washinglan. D. C.
- My invention relates to expansion welldrills, the object being to provide a device of this character of cheap and durable construction.
- Figure I represents a side elevation of my improved drill with the bits in closed position.
- Fig. II is a similar view with the bits expanded; and Figs. Ill, IV, V, VI, and VII show the parts of the improve ments detached.
- A represents the drill-shank, connected by a coupling, a, to a drill-rod, B.
- the shank A is screw-threaded, as shown at a, and is provided at its lower end with a contracted or reduced portion, 0, which terminates in a head or enlargement, D.
- the shank A is also formed with diametrically opposite depressions 0r slots 0 c.
- E E represent the bit-sections of the drill, each of which is recessed 011 its inner side to receive the head D of the shank, to which the bits are pivoted by pins (1.
- Each bit is provided with an upper threaded extension, F, which is inclined on its inner side and provided with a log, f, adapted to enter the slots 0 c of the shank.
- C- represents an internally-threaded thimble arranged upon the shank A,and provided with oppositely-arranged wings or lugs 9, adapted to enter grooves or guides in the drill-tube within which the device works, to prevent the thimble from turning.
- the thiinble is also adapted to inclose the upper threaded ends of Serial No. 220,410. (No model.)
- bitsections are grooved on their outer sides to form V-shaped ends; but any preferred form of cutting or drilling points may be employed.
- bit-sections pivoted on each side of the head of the shank and provided with threaded upper ends, and an internally threaded thiinble to engage said upper ends of the bit-sections and formed with oppositelyprojecting lugs or fins, substantially as described.
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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)
- Surgical Instruments (AREA)
Description
(No Model.)
W. S. GREEN.
EXPANSION WELL'DRILL. No. 369,403. I Patented Sept. 6, 1887.
WITNESSES [JV N To B NV PETIRS. Phuwmho n nw. Washinglan. D. C.
UNITED STATES WILLIAM S. GREEN, OF ELLSW'ORTH, KANSAS.
EXPANSION WELL DRlLL.
SPECIFICATION forming part of Letters Patent No. 369,403, dated September 6, 1887.
Application filed December 1, 1886.
To aZZ whom it may concern:
Be it known that 1, WILLIAM S. GREEN, of Ellsworth, in the county of Ellsworth and State of Kansas, have invented certain new and useful Improvements in Expansion Vell- Drills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same. a
My invention relates to expansion welldrills, the object being to provide a device of this character of cheap and durable construction.
The invention consists in the features of construction and combination of parts, hereinafter fully described, and pointed out in the claims.
In the drawings, Figure I represents a side elevation of my improved drill with the bits in closed position. Fig. II is a similar view with the bits expanded; and Figs. Ill, IV, V, VI, and VII show the parts of the improve ments detached.
A represents the drill-shank, connected by a coupling, a, to a drill-rod, B. The shank A is screw-threaded, as shown at a, and is provided at its lower end with a contracted or reduced portion, 0, which terminates in a head or enlargement, D. The shank A is also formed with diametrically opposite depressions 0r slots 0 c.
E E represent the bit-sections of the drill, each of which is recessed 011 its inner side to receive the head D of the shank, to which the bits are pivoted by pins (1. Each bit is provided with an upper threaded extension, F, which is inclined on its inner side and provided with a log, f, adapted to enter the slots 0 c of the shank.
C- represents an internally-threaded thimble arranged upon the shank A,and provided with oppositely-arranged wings or lugs 9, adapted to enter grooves or guides in the drill-tube within which the device works, to prevent the thimble from turning. The thiinble is also adapted to inclose the upper threaded ends of Serial No. 220,410. (No model.)
(not shown,) and the thimble is brought in contact with the threaded upper ends by turning the drill-rod. The bitsections are grooved on their outer sides to form V-shaped ends; but any preferred form of cutting or drilling points may be employed.
Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. The combination, with a screw-threaded shank, of bitscctions pivotally secured to the lower end of said shank and provided with threaded upper ends, and a threaded thinible arranged upon the shank to engage the upper ends of the bit-sections, substantially as described.
2. The combination, with the screw-shank and drill-rod, of bit-sections pivoted on each side of the head of the shank and provided with threaded upper ends, and an internally threaded thiinble to engage said upper ends of the bit-sections and formed with oppositelyprojecting lugs or fins, substantially as described.
3. The combination, with the screw-shank provided with a head and a contracted lower end, as described, and formed with opposite depressions, of the bit-sections pivotally secured to said head and having the threaded upper ends and projecting lugs, substantially as described, and a threaded thimble to engage the uppercnds of thebit-sections to cause their lower ends to expand, substantially as described.
In testimony whereof I have signed this specification in the presence of two subscribing witnesses.
WILLIAM S. GREEN.
Vitnesses:
W. T. Annnnson, W. F. INGRAM.
Publications (1)
Publication Number | Publication Date |
---|---|
US369403A true US369403A (en) | 1887-09-06 |
Family
ID=2438419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US369403D Expired - Lifetime US369403A (en) | Expansion well-drill |
Country Status (1)
Country | Link |
---|---|
US (1) | US369403A (en) |
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0
- US US369403D patent/US369403A/en not_active Expired - Lifetime
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