US2519861A - Double-acting drill bit - Google Patents
Double-acting drill bit Download PDFInfo
- Publication number
- US2519861A US2519861A US722003A US72200347A US2519861A US 2519861 A US2519861 A US 2519861A US 722003 A US722003 A US 722003A US 72200347 A US72200347 A US 72200347A US 2519861 A US2519861 A US 2519861A
- Authority
- US
- United States
- Prior art keywords
- bit
- drill bit
- double
- cutters
- hole
- 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/003—Drill bits with cutting edges facing in opposite axial directions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
Definitions
- My present invention relates generally to earth boring tools, and more specifically to an improved double acting drill bit of the type havingan impact or vibratorystroke and rotary action, for drilling wells and similar earth drilling or boring operations.
- the primary purpose of my invention is the provision of a bit that is capable of cutting itself clear of such excess material as the bit is being removed from the hole; and to this end the bit of my invention is equipped with double acting cutters, including a set of auxiliary cutters designed for action in breaking and pulverizing any excess material lodged above the bit. This action is attained by elevating the drive shaft and the bit mounted thereon, and the resulting debris may be disposed of in usual manner.
- Figure 1 is a top plan view of a drill bit in which my invention is embodied.
- Figure 2 is a side view of the drill bit; and Figure 3 is a bottom plan view of the bit.
- Figure 4 is a side view of the bit as seen from line l4 of Fig. 1.
- Figure 5 is a central vertical sectional view of the bit; and Figure 6 is a perspective view of the bit of my invention.
- the tubular steel drive shaft in-addition to operating the bit, is designed to convey air and water under pressure to the bit, and the latter is fashioned with a laterally extending conduit or duct 3 from the bottom of the socket which terminates in a discharge port 4 for blowing out the powdered rock and other debris resulting from the impact or vibratory strokes and the rotary action of the drill hit.
- the integral bit stock or body is equipped with four circumferentially spaced lobes 5, each having an outer segmental or arcuate face conforming to the annular wall of the hole being drilled, and these four lobes form diametrically arranged vertical recesses, flutes, or grooves 6 for upward movement of the debris as it is cleared from beneath the bit.
- Each lobe at its lower end, terminates in a radially extending main cutter or cutting edge I, and these four diametrically arranged cutters merge with the walls of a central clearance recess 9 of rectangular shape located in the working face of the tool.
- each lobe 5 at its upper portion is formed with two acutely arranged angular faces that'merge to provide a horizontally extending radial auxiliary cutter or cutting edge [0, and these auxiliary cutters, adapted to cut upwardly, extend inwardly from the outer convex faces of the lobes to the exterior surface of the collar l.
- auxiliary cutters or cutting edges are shorter than the main cutters, and the auxiliary cutters have less width than the main cutters; but all of the cutters have the same overall exterior diameter that permits ready withdrawal of the tool from a bored hole.
- auxiliary cutters Between the circumferentially spaced auxiliary cutters clearance spaces are provided over the main cutters into which spaces debris from the grooves or channels 6 flows, upwardly, and exterior ribs H arranged vertically on the collar above the channels, divide and aid in clearing the debris on its way up through the bored hole exterior of the drive shaft.
- a body provideii with eantupper cylindrical collar, said collar being threaded interiorly to define an attachingsocket there being a laterally extending duct leading from said socket, a plurality of circumferentially spaced arcuate lobes arranged :Im the exterior of said body, said lobes having a .smooth iextenior :surface lying in a.circle of a commonradiuspsaid lobes defining spaced, parallel :grooves therebetween, the :lower :end 0faCh1Of :said lobes terminating in a main cutting sedge, said main nutting "edges extending radially of zthB longi- .tudinal a-xis of the :bit, lthe inner portion at the main .cutting edges being cut :away :to define -a :rality of spaced parallel vertically disposed ribs arranged on the
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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
' Aug. 22, 1950 F. G. TURNER 2,519,861 I DOUBLE-ACTING DRILL BIT,
Filed Jan. 14, 1947 I N VEN TOR.
Frargl}. Turner ATTD RN EYE Patented Aug. 22, 1950 UNITED STATES PATENT" OFFICE M I I 2,519,861 7 v DOUBLE-ACTING DRILL BIT Frank G. Turner, Twin Falls, Idaho, assignor, by direct and mesne assignments, of nine-twentieths to John D. Bilbao and two-twentieths to Harry Povey, both of Twin Falls, Idaho Application January 14, 19-47, Serial No. 722,003
I My present invention relates generally to earth boring tools, and more specifically to an improved double acting drill bit of the type havingan impact or vibratorystroke and rotary action, for drilling wells and similar earth drilling or boring operations.
As iswell known to those'familiar with boring, fragments of-rock from the wall of the hole being drilled, and other undesirable materials, frequently fall into the hole as it is being drilled, and lodge on top of the bit and within the wall of the hole. This excess material becomes wedged in the hole above the bit, impedes the operation of the bit, and frequently results in loss and abandonment of the bit due to the inability of the operator to extricate the bit from the jammed material.
The primary purpose of my invention is the provision of a bit that is capable of cutting itself clear of such excess material as the bit is being removed from the hole; and to this end the bit of my invention is equipped with double acting cutters, including a set of auxiliary cutters designed for action in breaking and pulverizing any excess material lodged above the bit. This action is attained by elevating the drive shaft and the bit mounted thereon, and the resulting debris may be disposed of in usual manner.
The invention consists in certain novel features of construction and combinations and arrangements of parts as will hereinafter be described and more specifically pointed out in the appended claim.
In the accompanying drawings I have illustrated one complete example of a physical embodiment of my invention wherein the parts are combined and arranged in accord with one mode I have devised for the practical application of the principles of my invention. It will however, be understood that changes and alterations are contemplated and may be made in these exemplifying drawings and mechanical structures within the scope of my claim, without departing from the principles of the invention.
Figure 1 is a top plan view of a drill bit in which my invention is embodied.
Figure 2 is a side view of the drill bit; and Figure 3 is a bottom plan view of the bit.
Figure 4 is a side view of the bit as seen from line l4 of Fig. 1.
Figure 5 is a central vertical sectional view of the bit; and Figure 6 is a perspective view of the bit of my invention.
In carrying out my invention I employ an integral bit, or bit stock, of generally cylindrical 1 Claim. (CL 255-64) shape and fashioned of tool steel, with an upper cylindrical central collar I that is internally threaded to form an attaching socket for-a conventional tubular drive shaft 2 which is shown in dotted lines in Figs. 2 and 4. I
The tubular steel drive shaft in-addition to operating the bit, is designed to convey air and water under pressure to the bit, and the latter is fashioned with a laterally extending conduit or duct 3 from the bottom of the socket which terminates in a discharge port 4 for blowing out the powdered rock and other debris resulting from the impact or vibratory strokes and the rotary action of the drill hit.
As here shown the integral bit stock or body is equipped with four circumferentially spaced lobes 5, each having an outer segmental or arcuate face conforming to the annular wall of the hole being drilled, and these four lobes form diametrically arranged vertical recesses, flutes, or grooves 6 for upward movement of the debris as it is cleared from beneath the bit.
Each lobe, at its lower end, terminates in a radially extending main cutter or cutting edge I, and these four diametrically arranged cutters merge with the walls of a central clearance recess 9 of rectangular shape located in the working face of the tool.
In addition to the main cutters, each lobe 5, at its upper portion is formed with two acutely arranged angular faces that'merge to provide a horizontally extending radial auxiliary cutter or cutting edge [0, and these auxiliary cutters, adapted to cut upwardly, extend inwardly from the outer convex faces of the lobes to the exterior surface of the collar l.
The auxiliary cutters or cutting edges are shorter than the main cutters, and the auxiliary cutters have less width than the main cutters; but all of the cutters have the same overall exterior diameter that permits ready withdrawal of the tool from a bored hole.
Between the circumferentially spaced auxiliary cutters clearance spaces are provided over the main cutters into which spaces debris from the grooves or channels 6 flows, upwardly, and exterior ribs H arranged vertically on the collar above the channels, divide and aid in clearing the debris on its way up through the bored hole exterior of the drive shaft.
From this description taken in connection with my drawings it will be apparent that, in it's drilling operation as it vibrates or reciprocates with a rotary action, the bit is effective in pulverizing rock and other hard materials and in disposing of the debris in usual manner. In the drilling operations the auxiliary cutters on the upper parts of the lobes tend to clear the material flowing upwardly from the bit, and to prevent clogging or jamming of the bit. Should, however, excess material above the bit and within the bored :hole mecomelodged orwedged-over the bit and .in -.the bored hole, thebit .may be activated with upward strokes for dislodging any accumulated material that would impede removal of the bit fromthe bored hole.
Having thus fully described my invention what I claim as new and desire to .secure byrLetters Patent is:
In a drill bit, a body provideii with eantupper cylindrical collar, said collar being threaded interiorly to define an attachingsocket there being a laterally extending duct leading from said socket, a plurality of circumferentially spaced arcuate lobes arranged :Im the exterior of said body, said lobes having a .smooth iextenior :surface lying in a.circle of a commonradiuspsaid lobes defining spaced, parallel :grooves therebetween, the :lower :end 0faCh1Of :said lobes terminating in a main cutting sedge, said main nutting "edges extending radially of zthB longi- .tudinal a-xis of the :bit, lthe inner portion at the main .cutting edges being cut :away :to define -a :rality of spaced parallel vertically disposed ribs arranged on the exterior of said collar, said ribs being positioned intermediate the auxiliary cutters.
FRANK G. TURNER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number .Name Date 54,199 Palmer Apr.l4,1866 54,226 Smith .Apr. 24, .1866
658,060 \Dudley .Sept. 18,1900 :80 3;9L1 iLeymer ..Nov. 7, 19 05 1,859,342 Rez ,May 24, 1932 2,368,512 Zimmerman .Jan...30, 1945 2,499,282 Roberts Feb. 28, .1950
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US722003A US2519861A (en) | 1947-01-14 | 1947-01-14 | Double-acting drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US722003A US2519861A (en) | 1947-01-14 | 1947-01-14 | Double-acting drill bit |
Publications (1)
Publication Number | Publication Date |
---|---|
US2519861A true US2519861A (en) | 1950-08-22 |
Family
ID=24900134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US722003A Expired - Lifetime US2519861A (en) | 1947-01-14 | 1947-01-14 | Double-acting drill bit |
Country Status (1)
Country | Link |
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US (1) | US2519861A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2679382A (en) * | 1950-01-07 | 1954-05-25 | Hemscheidt Maschf Hermann | Rock drill |
US2734725A (en) * | 1956-02-14 | Ctatfs patfnts | ||
US2746722A (en) * | 1950-07-17 | 1956-05-22 | Schneider Jacob | Reversible drill bit |
US2766013A (en) * | 1952-02-06 | 1956-10-09 | George A Hertzke | Drill guide |
US2821364A (en) * | 1954-07-01 | 1958-01-28 | Godfrey Grant | Two-way bit |
US2971594A (en) * | 1958-08-22 | 1961-02-14 | Spencer Rock Drill Co Inc | Rock drill bit |
US3094180A (en) * | 1960-05-23 | 1963-06-18 | William J Haith | Rock drilling bit |
US3128835A (en) * | 1964-04-14 | Rock drill bit | ||
US3339649A (en) * | 1965-01-19 | 1967-09-05 | Atlas Copco Ab | Rock drill bits |
DE2917292A1 (en) * | 1979-04-27 | 1980-11-06 | Inst Gornogo Dela Sibirskogo O | Cutting head for rotary and impact operated coal drill - has cross-shaped tip and wedge-shaped upper part |
FR2458669A1 (en) * | 1979-04-02 | 1981-01-02 | Inst Gornogo Dela Sibirskogo O | DRILLING TOOL FOR A MACHINE FOR REALIZING PERCUSSION SURVEYS |
US4953642A (en) * | 1989-03-20 | 1990-09-04 | Skaggs Roger D | Rock drill bit |
US5366032A (en) * | 1993-06-09 | 1994-11-22 | Kay Mark A | Rock bit |
US20060180355A1 (en) * | 2002-11-01 | 2006-08-17 | Masaaki Miyanaga | Drill bit |
CN107989550A (en) * | 2017-12-28 | 2018-05-04 | 山东里能鲁西矿业有限公司 | A kind of bidirectional drill |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US54199A (en) * | 1866-04-24 | Improved drill for artesian wells | ||
US54526A (en) * | 1866-05-08 | Improvement in coal-stoves | ||
US658060A (en) * | 1900-07-21 | 1900-09-18 | William Archer Dudley | Rock-drill head. |
US803911A (en) * | 1903-09-02 | 1905-11-07 | John George Leyner | Rock-cutting drill-bit. |
US1859342A (en) * | 1930-04-08 | 1932-05-24 | Detachable Bit Corp | Drill |
US2368512A (en) * | 1942-09-14 | 1945-01-30 | Ingersoll Rand Co | Drilling implement |
US2499282A (en) * | 1946-07-11 | 1950-02-28 | William A Roberts | Rock bit |
-
1947
- 1947-01-14 US US722003A patent/US2519861A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US54199A (en) * | 1866-04-24 | Improved drill for artesian wells | ||
US54526A (en) * | 1866-05-08 | Improvement in coal-stoves | ||
US658060A (en) * | 1900-07-21 | 1900-09-18 | William Archer Dudley | Rock-drill head. |
US803911A (en) * | 1903-09-02 | 1905-11-07 | John George Leyner | Rock-cutting drill-bit. |
US1859342A (en) * | 1930-04-08 | 1932-05-24 | Detachable Bit Corp | Drill |
US2368512A (en) * | 1942-09-14 | 1945-01-30 | Ingersoll Rand Co | Drilling implement |
US2499282A (en) * | 1946-07-11 | 1950-02-28 | William A Roberts | Rock bit |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734725A (en) * | 1956-02-14 | Ctatfs patfnts | ||
US3128835A (en) * | 1964-04-14 | Rock drill bit | ||
US2679382A (en) * | 1950-01-07 | 1954-05-25 | Hemscheidt Maschf Hermann | Rock drill |
US2746722A (en) * | 1950-07-17 | 1956-05-22 | Schneider Jacob | Reversible drill bit |
US2766013A (en) * | 1952-02-06 | 1956-10-09 | George A Hertzke | Drill guide |
US2821364A (en) * | 1954-07-01 | 1958-01-28 | Godfrey Grant | Two-way bit |
US2971594A (en) * | 1958-08-22 | 1961-02-14 | Spencer Rock Drill Co Inc | Rock drill bit |
US3094180A (en) * | 1960-05-23 | 1963-06-18 | William J Haith | Rock drilling bit |
US3339649A (en) * | 1965-01-19 | 1967-09-05 | Atlas Copco Ab | Rock drill bits |
FR2458669A1 (en) * | 1979-04-02 | 1981-01-02 | Inst Gornogo Dela Sibirskogo O | DRILLING TOOL FOR A MACHINE FOR REALIZING PERCUSSION SURVEYS |
US4291774A (en) * | 1979-04-02 | 1981-09-29 | Sudnishnikov Boris V | Rock-breaking implement for percussive machines |
DE2917292A1 (en) * | 1979-04-27 | 1980-11-06 | Inst Gornogo Dela Sibirskogo O | Cutting head for rotary and impact operated coal drill - has cross-shaped tip and wedge-shaped upper part |
US4953642A (en) * | 1989-03-20 | 1990-09-04 | Skaggs Roger D | Rock drill bit |
US5366032A (en) * | 1993-06-09 | 1994-11-22 | Kay Mark A | Rock bit |
US20060180355A1 (en) * | 2002-11-01 | 2006-08-17 | Masaaki Miyanaga | Drill bit |
US7137462B2 (en) * | 2002-11-01 | 2006-11-21 | Kabushiki Kaisha Miyanaga | Drill bit |
CN107989550A (en) * | 2017-12-28 | 2018-05-04 | 山东里能鲁西矿业有限公司 | A kind of bidirectional drill |
CN107989550B (en) * | 2017-12-28 | 2020-01-24 | 山东里能鲁西矿业有限公司 | Bidirectional drill bit |
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