US1444305A - Drill bit - Google Patents
Drill bit Download PDFInfo
- Publication number
- US1444305A US1444305A US485564A US48556421A US1444305A US 1444305 A US1444305 A US 1444305A US 485564 A US485564 A US 485564A US 48556421 A US48556421 A US 48556421A US 1444305 A US1444305 A US 1444305A
- Authority
- US
- United States
- Prior art keywords
- bit
- blades
- drill bit
- ribs
- water
- 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
- 238000005520 cutting process Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method 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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
Definitions
- This invention relates to new and useful improvements in a drill bit.
- One object of the invention is to provide a bit of the character described which has specially formed water courses, which will cast the water onto the cutting points of the blades.
- Another object is to provide a bit which is so formed that it may be easily sharpened, as it wears away, and thus renewed for reuse, and the life of the bit thus materially lengthened.
- Figure 2 is an edge view
- Figure 3 is a point view, thereof.
- the numeral 1 designates the body of the bit whose upper end is reduced and formed into an outwardly threaded neck 2 for attachment to the drill stem.
- the lower end of the bit is formed with slightly flared, oppositely curved cutting blades 3, 3.
- the body 1 is flat and of substantially uniform thickness. 0n each side it is formed with a vertical integral rib 4 which extends down to the blades. Said ribs are centrally located and oppositely disposed and add strength to the blades where it is needed.
- ⁇ Vater courses 5 extend down through the body from the upper end, said water courses continuing on down lengthwise through said ribs to near the cutting edge of the bit. The lower ends of these water courses are curved, or deflected, toward the cutting points of the respective blades so that the water will be conducted down from the stem and thrown directly onto said cutting points under strong hydraulic pressure to carry away the cuttings. As the blades wear away, and the bit becomes shorter, the lower ends ofthe 1921. Serial No. 485,564.
- ribs may be cut off and the blades reformed and sharpened, thus producing a practically new bit. This process may be repeated as often as desired until the body of the bit is worn away.
- the lower ends of the ribs are cut off the lower ends of the water courses may be deflected, as above described, to throw the water to the cutting points of the blades for the purpose set forth.
- a drill bit including an elongated flat body having a centrally located vertical rib on each side formed integrally therewith and whose lower end is formed into cutting blades, said bit having vertical water courses which extend from the upper end thereof and continue on down through said ribs.
- a drill bit including a fiat body having a centrally located vertical rib on each side and whose lower end is formed into cutting blades, said ribs being integral with the body, said bit having vertical water courses which extend from the upper end thereof and continue on down through said ribs, the lower ends of said water courses being deflected toward the cutting points of the blades.
- a drill bit including a neck and a relatively flat elongated body whose lower end is formed into cutting blades, and oppositely disposed vertical ribs centrally located on each side thereof extending from said neck to near the cutting edge of said bit, said ribs being integral with the body, said bit having water courses extending through said neck, and ribs adapted to carry water to the edges of said cutting blades under pressure.
- Adrill bit including a neck, an elongated relatively flat body whose lower end is formed into cutting blades, a vertical rib centrally located on each side thereof and integral therewith, said bit having water courses extending through said neck and ribs and provided to carry water to the point of said cutting blades under pressure, the lower endsof said water courses being outwardly curved.
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)
- Earth Drilling (AREA)
Description
Feb. 5, 1923.. 1,14 ;-,3Z5 W. e. CHRISTIAN.
DRILL BIT Fl LED JULY 18, 192] 7 Wm A wQ Patented Feb. 6, 1923.
UNITED STATES earenr WALTON G. CHRISTIAN, 0F HOUSTON, TEXAS.
DRILL BIT.
Application filed July 18,
T 0 all whom it may concern:
Be it known that \VAL'roN G. CHRISTIAN, a citizen of the United States, residing at Houston, in the county of Harris and State of Texas, has invented certain new and useiul'lmprovements in a Drill Bit, of which the following is a specification.
This invention relates to new and useful improvements in a drill bit.
One object of the invention is to provide a bit of the character described which has specially formed water courses, which will cast the water onto the cutting points of the blades.
Another object is to provide a bit which is so formed that it may be easily sharpened, as it wears away, and thus renewed for reuse, and the life of the bit thus materially lengthened.
With the above and other objects in view the invention has particular relation to certain'novel features of construction, operation and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawings, wherein Figure 1, is a side view of the bit.
Figure 2, is an edge view, and
Figure 3, is a point view, thereof.
Referring now more particularly to the drawings the numeral 1, designates the body of the bit whose upper end is reduced and formed into an outwardly threaded neck 2 for attachment to the drill stem.
The lower end of the bit is formed with slightly flared, oppositely curved cutting blades 3, 3. The body 1 is flat and of substantially uniform thickness. 0n each side it is formed with a vertical integral rib 4 which extends down to the blades. Said ribs are centrally located and oppositely disposed and add strength to the blades where it is needed. \Vater courses 5 extend down through the body from the upper end, said water courses continuing on down lengthwise through said ribs to near the cutting edge of the bit. The lower ends of these water courses are curved, or deflected, toward the cutting points of the respective blades so that the water will be conducted down from the stem and thrown directly onto said cutting points under strong hydraulic pressure to carry away the cuttings. As the blades wear away, and the bit becomes shorter, the lower ends ofthe 1921. Serial No. 485,564.
ribs may be cut off and the blades reformed and sharpened, thus producing a practically new bit. This process may be repeated as often as desired until the body of the bit is worn away. When the lower ends of the ribs are cut off the lower ends of the water courses may be deflected, as above described, to throw the water to the cutting points of the blades for the purpose set forth.
What I claim is:
1. A drill bit including an elongated flat body having a centrally located vertical rib on each side formed integrally therewith and whose lower end is formed into cutting blades, said bit having vertical water courses which extend from the upper end thereof and continue on down through said ribs.
2. A drill bit including a fiat body having a centrally located vertical rib on each side and whose lower end is formed into cutting blades, said ribs being integral with the body, said bit having vertical water courses which extend from the upper end thereof and continue on down through said ribs, the lower ends of said water courses being deflected toward the cutting points of the blades.
3. A drill bit including a neck and a relatively flat elongated body whose lower end is formed into cutting blades, and oppositely disposed vertical ribs centrally located on each side thereof extending from said neck to near the cutting edge of said bit, said ribs being integral with the body, said bit having water courses extending through said neck, and ribs adapted to carry water to the edges of said cutting blades under pressure.
4. Adrill bit including a neck, an elongated relatively flat body whose lower end is formed into cutting blades, a vertical rib centrally located on each side thereof and integral therewith, said bit having water courses extending through said neck and ribs and provided to carry water to the point of said cutting blades under pressure, the lower endsof said water courses being outwardly curved. I
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
WALTON G. CHRISTIAN.
Witnesses:
E. V. HARDWAY, W. H. DUNLAY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US485564A US1444305A (en) | 1921-07-18 | 1921-07-18 | Drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US485564A US1444305A (en) | 1921-07-18 | 1921-07-18 | Drill bit |
Publications (1)
Publication Number | Publication Date |
---|---|
US1444305A true US1444305A (en) | 1923-02-06 |
Family
ID=23928640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US485564A Expired - Lifetime US1444305A (en) | 1921-07-18 | 1921-07-18 | Drill bit |
Country Status (1)
Country | Link |
---|---|
US (1) | US1444305A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2484365A (en) * | 1947-10-27 | 1949-10-11 | Charles E Seley | Rock drill bit |
US2800303A (en) * | 1953-05-12 | 1957-07-23 | Ingersoll Rand Co | Rock drilling tool |
-
1921
- 1921-07-18 US US485564A patent/US1444305A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2484365A (en) * | 1947-10-27 | 1949-10-11 | Charles E Seley | Rock drill bit |
US2800303A (en) * | 1953-05-12 | 1957-07-23 | Ingersoll Rand Co | Rock drilling tool |
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