US2326908A - Drill bit - Google Patents
Drill bit Download PDFInfo
- Publication number
- US2326908A US2326908A US444955A US44495542A US2326908A US 2326908 A US2326908 A US 2326908A US 444955 A US444955 A US 444955A US 44495542 A US44495542 A US 44495542A US 2326908 A US2326908 A US 2326908A
- Authority
- US
- United States
- Prior art keywords
- segments
- drill
- bit
- head
- drill bit
- 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
Images
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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/81—Tool having crystalline cutting edge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/895—Having axial, core-receiving central portion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/907—Tool or Tool with support including detailed shank
Definitions
- the primary object of the invention is to provide a drill bit-constructed in sections or segments so that the cutting parts of the bit may be removed and repairs made in the field when required. 7
- Another object of the invention is the provisionof a drill bit constructed of a plurality of removable segments and wherein the segments are interlocked one with another and are interchangeable.
- the invention also includes such features as novel means for securing the segments to a drill head, and the elimination of reaming, all of which I will'b'e clearly understood from a perusal of the following-detailed description, taken in connection with the accompanying drawing, and in the drawing:
- Figure 1 is a side view of a drill head, partly broken'away and partly in section, and illustrating an embodiment of the segment bit;
- Figure 2 is a top plan view thereof; the view being partly broken away;
- Figure 3 is a rspective view of one of the segments showing the bottom thereof;
- Figure 4 is a View similar to Figure 3, but showing the upper portion of the segment.
- Figure 5 is a top plan view of one of thesegments, the broken lines indicating the means for securing the segments in position.
- i denotes a drill head with threaded portion 2 for connecting the head to a drill body.
- Formed on andfspaced around the head I are a plurality of ta red keys 3 for receiving and holding theme the segments for cutting.
- the segments show, at 4 in the several views of the drawing carry the abrasives such as diamonds of various grades, size and types, or steel alloys cast in the segments and indicated at A.
- the primary object of .the invention resides in the adaptability of the bit to be repaired in the field thus saving time, labor and cost.
- each of the segments 4 has a recess 5 which conforms to the tapered form of the keys 3, and the keys 3 are bored at 3-11 to receive screw bolts or pins 6.
- This formgof construction and arrangement of the keys and segments provides a practical and effective means for holding the segments in position as the more pressure is, had on the segments the tighter the same are held on the keys.
- each segment has a tongue or projecting portion 1 and its opposite end is forked or has the projecting spaced parts 8. These parts thus interlock, the tonguesfitting snugly in between the parts 8 as shown in Figure 2 and which prevents drill fiuid from flowing in between the parts. ,7
- the drill core bit with its removable, interchangeable and interlocking segments and the manner of mounting and removing them provides a practical and useful bit of this nature.
- the worn part can be removed and replaced with reinforced segments on the site, thus saving the usefulness and value in the unworn parts and thus cutting down cost of bits and drilling costs.
- the abrasives can thus also be removed and replaced with other segments, or adjusted on the site to meet'any drilling contingency arising in cutting the formations.
- a drill core bit comprising a hollow cylindrical head with a plurality of projecting tapered and arcuate keys spaced apart on one end of the head, a plurality of segments of arcuate form, each of which has a recess for complementally receiving the keys, each of the segments including tongue and groove means for connecting and interlocking the segments in a continuous rim on the head, the outer faces of the segments carrying abrasive elements.
- a drill core bit comprising a hollow cylindrical head, one end of the head being threaded tongue of substantially wedge shape on one end thereof and a forked formation on its opposite end, the tongue and the forked formation projecting beyond the abrasive-holding portion of the segment, the tongue being complementally receivable in between the forked formation to thereby interlock the segments in position on the'head and upon the projections, and means for securing the segments in said interlocked po- 10 sition on the head.
Description
1943- E. B. WILLIAMS, JR I v 2,326,908
DRILL BIT Filed May 29, 1942 INVENTOR.
Edward. BM illiamsJr. I
Patented Aug. 17, 1943 UNITED STATES PATENT OFFICE DRILL BIT Edward B. Williams, Jr., Greenville, Tex. Application May 29, 1942, Serial No. 444,955 3 Claims. (01. 255-72) This invention relates to well drilling tools and particularly to drill bits and in such connection it has more specific reference to the novel construction and arrangement thereof.
The primary object of the invention is to provide a drill bit-constructed in sections or segments so that the cutting parts of the bit may be removed and repairs made in the field when required. 7
Another object of the invention is the provisionof a drill bit constructed of a plurality of removable segments and wherein the segments are interlocked one with another and are interchangeable.
The invention also includes such features as novel means for securing the segments to a drill head, and the elimination of reaming, all of which I will'b'e clearly understood from a perusal of the following-detailed description, taken in connection with the accompanying drawing, and in the drawing:
Figure 1 is a side view of a drill head, partly broken'away and partly in section, and illustrating an embodiment of the segment bit;
Figure 2 is a top plan view thereof; the view being partly broken away;
Figure 3 is a rspective view of one of the segments showing the bottom thereof;
Figure 4 is a View similar to Figure 3, but showing the upper portion of the segment; and
' Figure 5 is a top plan view of one of thesegments, the broken lines indicating the means for securing the segments in position.
Having a more detailed reference to the drawing, i denotes a drill head with threaded portion 2 for connecting the head to a drill body. Formed on andfspaced around the head I are a plurality of ta red keys 3 for receiving and holding theme the segments for cutting. The segments show, at 4 in the several views of the drawing carry the abrasives such as diamonds of various grades, size and types, or steel alloys cast in the segments and indicated at A. The primary object of .the invention resides in the adaptability of the bit to be repaired in the field thus saving time, labor and cost. Toward this objective and as illustrated in the drawing each of the segments 4 has a recess 5 which conforms to the tapered form of the keys 3, and the keys 3 are bored at 3-11 to receive screw bolts or pins 6. This formgof construction and arrangement of the keys and segments provides a practical and effective means for holding the segments in position as the more pressure is, had on the segments the tighter the same are held on the keys.
This also prevents the segments from becoming dislodged or dropping off the keys when the drill Another important and particular feature of the drill bit is the manner of interlocking each segment with its adjacent segment. a For this purpose each segment has a tongue or projecting portion 1 and its opposite end is forked or has the projecting spaced parts 8. These parts thus interlock, the tonguesfitting snugly in between the parts 8 as shown in Figure 2 and which prevents drill fiuid from flowing in between the parts. ,7
From the foregoing it will be apparent that the drill core bit with its removable, interchangeable and interlocking segments and the manner of mounting and removing them provides a practical and useful bit of this nature. After drilling there is no reaming necessary as the hole will be cut full gauge, as, due to the segments being circular in form, in drilling the bit will slightly increase the diameter of the hole, and at the same time drill a perfectly circular hole. In case one portion of the bit becomes worn, the worn part can be removed and replaced with reinforced segments on the site, thus saving the usefulness and value in the unworn parts and thus cutting down cost of bits and drilling costs. The abrasives can thus also be removed and replaced with other segments, or adjusted on the site to meet'any drilling contingency arising in cutting the formations.
While the disclosure presents a practical working embodiment of a drill core bit embracing the features and advantages pointed out, it will be understood that the invention is not limited to the precise construction here shown, but is capable of some modifications and alterations in keeping with the inventive thought, and such as would be within the scope and meaning of the I following claims.
What is claimed is:
1. A drill core bit comprisinga hollow cylindrical head with a plurality of projecting tapered and arcuate keys spaced apart on one end of the head, a plurality of segments of arcuate form, each of which has a recess for complementally receiving the keys, each of the segments including tongue and groove means for connecting and interlocking the segments in a continuous rim on the head, the outer faces of the segments carrying abrasive elements.
2. A drill core bit comprising a hollow cylindrical head, one end of the head being threaded tongue of substantially wedge shape on one end thereof and a forked formation on its opposite end, the tongue and the forked formation projecting beyond the abrasive-holding portion of the segment, the tongue being complementally receivable in between the forked formation to thereby interlock the segments in position on the'head and upon the projections, and means for securing the segments in said interlocked po- 10 sition on the head.
EDWARD B. WILLIAMS, JR.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US444955A US2326908A (en) | 1942-05-29 | 1942-05-29 | Drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US444955A US2326908A (en) | 1942-05-29 | 1942-05-29 | Drill bit |
Publications (1)
Publication Number | Publication Date |
---|---|
US2326908A true US2326908A (en) | 1943-08-17 |
Family
ID=23767057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US444955A Expired - Lifetime US2326908A (en) | 1942-05-29 | 1942-05-29 | Drill bit |
Country Status (1)
Country | Link |
---|---|
US (1) | US2326908A (en) |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428823A (en) * | 1943-05-18 | 1947-10-14 | Thomas P Campbell | Method of producing drill bits |
US2506387A (en) * | 1948-10-20 | 1950-05-02 | Koebel Diamond Tool Co | Core bit |
US2506341A (en) * | 1948-10-28 | 1950-05-02 | Koebel Diamond Tool Co | Core bit |
US2506388A (en) * | 1948-10-20 | 1950-05-02 | Koebel Diamond Tool Co | Core bit |
US2671642A (en) * | 1948-11-12 | 1954-03-09 | Reed Roller Bit Co | Coring apparatus |
US2780896A (en) * | 1955-03-14 | 1957-02-12 | Jaye Corp | Apparatus for cutting pipe cover sections from cellular material |
US2946567A (en) * | 1958-08-11 | 1960-07-26 | Robert K Pepper | Casing installing machine |
US3306380A (en) * | 1964-01-27 | 1967-02-28 | Gen Automation Mfg Inc | Core drill |
US3382940A (en) * | 1965-10-21 | 1968-05-14 | Frank E. Stebley | Percussion drill bit |
US4208154A (en) * | 1978-03-21 | 1980-06-17 | Gundy William P | Core drill |
US4261620A (en) * | 1979-10-30 | 1981-04-14 | Carmet Company | Tapered lock pin for a cutter tool bit |
US4466498A (en) * | 1982-09-24 | 1984-08-21 | Bardwell Allen E | Detachable shoe plates for large diameter drill bits |
US4765333A (en) * | 1983-05-25 | 1988-08-23 | Bray Robert S | Surgical methods and apparatus for bone removal |
US4895146A (en) * | 1982-01-25 | 1990-01-23 | Klaus Draenert | Surgical bone-grinding instrument |
EP0352546A2 (en) * | 1988-07-25 | 1990-01-31 | HILTI Aktiengesellschaft | Core drill bit |
WO2000015942A1 (en) * | 1998-09-16 | 2000-03-23 | Baker Hughes Incorporated | Reinforced abrasive-impregnated cutting elements, drill bits including same and methods |
US20050105981A1 (en) * | 2003-09-26 | 2005-05-19 | The M. K. Morse Company | Hole cutter and method for producing |
US20080128170A1 (en) * | 2006-11-30 | 2008-06-05 | Drivdahl Kristian S | Fiber-Containing Diamond-Impregnated Cutting Tools |
US20110067924A1 (en) * | 2009-09-22 | 2011-03-24 | Longyear Tm, Inc. | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
US20110174546A1 (en) * | 2008-08-15 | 2011-07-21 | Sandvik Intellectual Property Ab | Core drill bit |
WO2013093041A1 (en) * | 2011-12-22 | 2013-06-27 | Hilti Aktiengesellschaft | Drill bit with an exchangeable cutting portion |
US8657894B2 (en) | 2011-04-15 | 2014-02-25 | Longyear Tm, Inc. | Use of resonant mixing to produce impregnated bits |
US8778259B2 (en) | 2011-05-25 | 2014-07-15 | Gerhard B. Beckmann | Self-renewing cutting surface, tool and method for making same using powder metallurgy and densification techniques |
US9267332B2 (en) | 2006-11-30 | 2016-02-23 | Longyear Tm, Inc. | Impregnated drilling tools including elongated structures |
US20170001249A1 (en) * | 2013-12-20 | 2017-01-05 | Hilti Aktiengesellschaft | Drill bit with a replaceable cutting portion |
US9540883B2 (en) | 2006-11-30 | 2017-01-10 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
NO20181642A1 (en) * | 2018-01-12 | 2019-07-15 | Comrod As | Slotted drill with interchangeable tooth ring |
WO2019207347A1 (en) * | 2018-04-27 | 2019-10-31 | Abu Dhabi National Oil Company | Oil well drill bit |
US10702975B2 (en) | 2015-01-12 | 2020-07-07 | Longyear Tm, Inc. | Drilling tools having matrices with carbide-forming alloys, and methods of making and using same |
-
1942
- 1942-05-29 US US444955A patent/US2326908A/en not_active Expired - Lifetime
Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428823A (en) * | 1943-05-18 | 1947-10-14 | Thomas P Campbell | Method of producing drill bits |
US2506387A (en) * | 1948-10-20 | 1950-05-02 | Koebel Diamond Tool Co | Core bit |
US2506388A (en) * | 1948-10-20 | 1950-05-02 | Koebel Diamond Tool Co | Core bit |
US2506341A (en) * | 1948-10-28 | 1950-05-02 | Koebel Diamond Tool Co | Core bit |
US2671642A (en) * | 1948-11-12 | 1954-03-09 | Reed Roller Bit Co | Coring apparatus |
US2780896A (en) * | 1955-03-14 | 1957-02-12 | Jaye Corp | Apparatus for cutting pipe cover sections from cellular material |
US2946567A (en) * | 1958-08-11 | 1960-07-26 | Robert K Pepper | Casing installing machine |
US3306380A (en) * | 1964-01-27 | 1967-02-28 | Gen Automation Mfg Inc | Core drill |
US3382940A (en) * | 1965-10-21 | 1968-05-14 | Frank E. Stebley | Percussion drill bit |
US4208154A (en) * | 1978-03-21 | 1980-06-17 | Gundy William P | Core drill |
US4261620A (en) * | 1979-10-30 | 1981-04-14 | Carmet Company | Tapered lock pin for a cutter tool bit |
US4895146A (en) * | 1982-01-25 | 1990-01-23 | Klaus Draenert | Surgical bone-grinding instrument |
US4466498A (en) * | 1982-09-24 | 1984-08-21 | Bardwell Allen E | Detachable shoe plates for large diameter drill bits |
US4765333A (en) * | 1983-05-25 | 1988-08-23 | Bray Robert S | Surgical methods and apparatus for bone removal |
EP0352546A2 (en) * | 1988-07-25 | 1990-01-31 | HILTI Aktiengesellschaft | Core drill bit |
EP0352546A3 (en) * | 1988-07-25 | 1991-03-13 | HILTI Aktiengesellschaft | Core drill bit |
WO2000015942A1 (en) * | 1998-09-16 | 2000-03-23 | Baker Hughes Incorporated | Reinforced abrasive-impregnated cutting elements, drill bits including same and methods |
US6241036B1 (en) | 1998-09-16 | 2001-06-05 | Baker Hughes Incorporated | Reinforced abrasive-impregnated cutting elements, drill bits including same |
US6458471B2 (en) | 1998-09-16 | 2002-10-01 | Baker Hughes Incorporated | Reinforced abrasive-impregnated cutting elements, drill bits including same and methods |
US6742611B1 (en) | 1998-09-16 | 2004-06-01 | Baker Hughes Incorporated | Laminated and composite impregnated cutting structures for drill bits |
US20050105981A1 (en) * | 2003-09-26 | 2005-05-19 | The M. K. Morse Company | Hole cutter and method for producing |
US20100008738A1 (en) * | 2006-11-30 | 2010-01-14 | Longyear Tm, Inc. | Fiber-containing sintered cutting tools |
US8783384B2 (en) | 2006-11-30 | 2014-07-22 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
US20090078469A1 (en) * | 2006-11-30 | 2009-03-26 | Longyear Tm, Inc. | Methods of forming and using fiber-containing diamond-impregnated cutting tools |
US20080128170A1 (en) * | 2006-11-30 | 2008-06-05 | Drivdahl Kristian S | Fiber-Containing Diamond-Impregnated Cutting Tools |
US7695542B2 (en) | 2006-11-30 | 2010-04-13 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools |
US9540883B2 (en) | 2006-11-30 | 2017-01-10 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
US7975785B2 (en) | 2006-11-30 | 2011-07-12 | Longyear Tm, Inc. | Drilling systems including fiber-containing diamond-impregnated cutting tools |
US20090071724A1 (en) * | 2006-11-30 | 2009-03-19 | Longyear Tm, Inc. | Drilling systems including fiber-containing diamond-impregnated cutting tools |
US8146686B2 (en) | 2006-11-30 | 2012-04-03 | Longyear Tm, Inc. | Fiber-containing cutting tools |
US8191445B2 (en) * | 2006-11-30 | 2012-06-05 | Longyear Tm, Inc. | Methods of forming fiber-containing diamond-impregnated cutting tools |
US9404311B2 (en) | 2006-11-30 | 2016-08-02 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
US9267332B2 (en) | 2006-11-30 | 2016-02-23 | Longyear Tm, Inc. | Impregnated drilling tools including elongated structures |
US20110174546A1 (en) * | 2008-08-15 | 2011-07-21 | Sandvik Intellectual Property Ab | Core drill bit |
US8684111B2 (en) * | 2008-08-15 | 2014-04-01 | Sandvik Intellectual Property Ab | Core drill bit |
EP2318640B1 (en) * | 2008-08-15 | 2018-08-15 | Sandvik Intellectual Property AB | Core drill bit |
US8590646B2 (en) | 2009-09-22 | 2013-11-26 | Longyear Tm, Inc. | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
US20110067924A1 (en) * | 2009-09-22 | 2011-03-24 | Longyear Tm, Inc. | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
US8657894B2 (en) | 2011-04-15 | 2014-02-25 | Longyear Tm, Inc. | Use of resonant mixing to produce impregnated bits |
US8778259B2 (en) | 2011-05-25 | 2014-07-15 | Gerhard B. Beckmann | Self-renewing cutting surface, tool and method for making same using powder metallurgy and densification techniques |
WO2013093041A1 (en) * | 2011-12-22 | 2013-06-27 | Hilti Aktiengesellschaft | Drill bit with an exchangeable cutting portion |
RU2609886C2 (en) * | 2011-12-22 | 2017-02-06 | Хильти Акциенгезельшафт | Drilling crown with replaceable cutting section |
US9687916B2 (en) | 2011-12-22 | 2017-06-27 | Hilti Aktiengesellschaft | Drill bit with an exchangeable cutting portion |
US20170001249A1 (en) * | 2013-12-20 | 2017-01-05 | Hilti Aktiengesellschaft | Drill bit with a replaceable cutting portion |
US10065252B2 (en) * | 2013-12-20 | 2018-09-04 | Hilti Aktiengesellschaft | Drill bit with a replaceable cutting portion |
US10702975B2 (en) | 2015-01-12 | 2020-07-07 | Longyear Tm, Inc. | Drilling tools having matrices with carbide-forming alloys, and methods of making and using same |
NO20181642A1 (en) * | 2018-01-12 | 2019-07-15 | Comrod As | Slotted drill with interchangeable tooth ring |
WO2019207347A1 (en) * | 2018-04-27 | 2019-10-31 | Abu Dhabi National Oil Company | Oil well drill bit |
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