US1506119A - Core-drill bit - Google Patents
Core-drill bit Download PDFInfo
- Publication number
- US1506119A US1506119A US616310A US61631023A US1506119A US 1506119 A US1506119 A US 1506119A US 616310 A US616310 A US 616310A US 61631023 A US61631023 A US 61631023A US 1506119 A US1506119 A US 1506119A
- Authority
- US
- United States
- Prior art keywords
- bit
- core
- cutter
- holes
- pins
- 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 13
- 239000010432 diamond Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 3
- 241001164374 Calyx Species 0.000 description 1
- 241000287181 Sturnus vulgaris Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance 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
- E21B10/46—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
-
- 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S76/00—Metal tools and implements, making
- Y10S76/12—Diamond tools
Definitions
- Drill Bits of which the following is a specification accompanied by drawings.
- This invention relates to core drills, and particularly to the rotary cutting bits forming a part of such drills.
- One type of core drill which possesses certain advantages due to its ability to drill holes at any angle is the so-called diamond drill.
- This type of core drill is adapted to use black diamonds or carbons as the cutting medium, and these diamonds are usually mounted in the end of the rotary cutting bit.
- the proper setting of the stones in the end of the bit is a matter of difiiculty and it is particularly diflicult to properly reset or replace stones which have become loosened or lost.
- One object of this invention is to enable the cutting elements of a coredrill of the above type to be set in individual cutter pins or mountings, so that comparatively inexpensive chips or small pieces of diamonds may be used and the mountings containing the cutting elements will be detachably secured in the end of the rotary cutting bit.
- a further object is to position the cutter pins or mountings so that they will perform their work most eiiectively.
- a still further and most important object is to firmly secure the cutter pins within the end of the bit p against longitudinal or rotative movement by positive locking means which eliminate I the use of separate looking or securing devices.
- Figure l is a sectional elevation of the bit end of a core drill, showing a preferred form of the present invention. 7
- Figure 2 is a side view, partly in section, or the cutting end of the bit
- Figure 3 is an end face view of the cut ting end of the bit
- Figure 4 is an enlarged perspective view of one of the detachable cutter points showing a modification of the securing groove.
- ll have illustrated the bit end of a typical diamond drill, including a hollow cylindrical core barrel A, one end of which is adapted to be 101ned to a so-called calyx barrel B by D adapted to be threaded to. the core barrel A as shown at E.
- the usual hollow drill rod F is adapted to be threaded in the plug C and the plug C has an axial bore G communicating with the interior of the core barrel A, so that liquid may be forced under pressure through the drill rod F, plug C, core barrelA, and bit D to the cutting end H of the bit D to facilitate th'e cutting of the core J in a manner which is well known.
- the end surface Sr of the bit l) is provided with a longitudina ly extendin K, which holes may be Tocated at any suit able angle so that the cylindrical cutters or pins L which are inserted in the holes K may be inclined to the proper degree for satisfactory cutting during the rotation of the bit D.
- the holes K, and hence the cutter pins L have referably been positioned in three series. 11 one series indicated at Q, the holes K are positioned so that the ends of the cutter pins are located substantially at the center of the end face of the bit, the holes for the cutter ins of this series being preferably parallel with the longitudinal axis of the bit.
- the holes K are inclined diametrically inwardly at an angle tothe longitudinal axis of the bit, and
- the holes are inclined diametrically outwardl at substantiall the same angle.
- the en 5 of the cutter pins L are provided with the cutting material U, which may be diamond or some other substance, set into the ends of the cutter pins L in any suitable manner.
- the cutter pins are each provided with a locking notch R intermediate the length of the pin.
- This notch R is preferably formed relatively close to the outer end of the cutter pin and may be substantially aligned with the end face of the bit when the cutter pin has been inserted in the hole K, as indicated at R in Figure 2, or a relatively short distance from the end of the bit as indicated at P in Figure 2.
- the notch B may be formed with lurality of series of generally cylindrical holes I straight end surfaces S as shown in Figure 4, or inclined end surfaces T as seen in Figure 2.
- the cutter pins L are firmly secured in the holes K by driving or forcing the metal of the body of the bit from the end face of the bit at a point V adjacent to the cutter pin into the notches with a chisel W or other suitable tool so that the force of the blow displaces the metal and causes it to flow into the notches and form locking keys.
- a chisel W or other suitable tool so that the force of the blow displaces the metal and causes it to flow into the notches and form locking keys.
- the cutter ins may be removed from the bit when desired by drivin a narrow chisel or other small suitably shaped implement alongside the cutter pin L so that the metal holding the pin is chipped ofi or otherwise removed from the
- a rotary cutting bit for a core drill having removable cylindrical cutter pins inserted in longitudinally extending holes in the end face of the bit, each pin having a locking notch intermediate its length, and the metal of the body portion of the bit being driven or forced from the end face of the bit into said locking notches to form looking ke s to hold the pins in place and prevent t em from turning during operation of the bit.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling Tools (AREA)
- Earth Drilling (AREA)
Description
Aug, 26, 1924.
C. C. HANSEN CORE DRILL BIT Filed Feb. 1, 1923 INVENTOR Cfimdes (7 Hermie/1 m5 ATT NEY Patented Aug. 26, lg lo untrue stares ant onAnLEs c. HANSEN, or EASTON, PENNSYLVANIA, ASSIGNOR ro rnennsonn-nnnn COMPANY, or JERSEY crrv, NEW JERSEY, a oonrona'rron on NEW aErs/sEY.
conn-nnrtn err.
Application filed February 1, 1928. Serial No. 616,310.
To all whom it may concern:
Be' it known that T, CHARLES C. HANSEN, a citizen of the United States, and a resident of Easton, county of Northampton, State of Pennsylvama, have in'vented certain Core,
Drill Bits, of which the following is a specification accompanied by drawings.
This invention relates to core drills, and particularly to the rotary cutting bits forming a part of such drills. One type of core drill which possesses certain advantages due to its ability to drill holes at any angle is the so-called diamond drill. This type of core drill is adapted to use black diamonds or carbons as the cutting medium, and these diamonds are usually mounted in the end of the rotary cutting bit. The proper setting of the stones in the end of the bit is a matter of difiiculty and it is particularly diflicult to properly reset or replace stones which have become loosened or lost.
. One object of this invention is to enable the cutting elements of a coredrill of the above type to be set in individual cutter pins or mountings, so that comparatively inexpensive chips or small pieces of diamonds may be used and the mountings containing the cutting elements will be detachably secured in the end of the rotary cutting bit. A further object is to position the cutter pins or mountings so that they will perform their work most eiiectively. A still further and most important object is to firmly secure the cutter pins within the end of the bit p against longitudinal or rotative movement by positive locking means which eliminate I the use of separate looking or securing devices.
With the above and other 0b18CtS 1n view my invention consists in the features of construction and operation set forth in the following specification and illustrated on the accompanying drawing, forming a part hereof.
Figure l is a sectional elevation of the bit end of a core drill, showing a preferred form of the present invention; 7
Figure 2 is a side view, partly in section, or the cutting end of the bit;
Figure 3 is an end face view of the cut ting end of the bit;
Figure 4 is an enlarged perspective view of one of the detachable cutter points showing a modification of the securing groove.
Referring to the drawings, ll have illustrated the bit end of a typical diamond drill, including a hollow cylindrical core barrel A, one end of which is adapted to be 101ned to a so-called calyx barrel B by D adapted to be threaded to. the core barrel A as shown at E. The usual hollow drill rod F is adapted to be threaded in the plug C and the plug C has an axial bore G communicating with the interior of the core barrel A, so that liquid may be forced under pressure through the drill rod F, plug C, core barrelA, and bit D to the cutting end H of the bit D to facilitate th'e cutting of the core J in a manner which is well known.
The end surface Sr of the bit l) is provided with a longitudina ly extendin K, which holes may be Tocated at any suit able angle so that the cylindrical cutters or pins L which are inserted in the holes K may be inclined to the proper degree for satisfactory cutting during the rotation of the bit D. In the present instance the holes K, and hence the cutter pins L have referably been positioned in three series. 11 one series indicated at Q, the holes K are positioned so that the ends of the cutter pins are located substantially at the center of the end face of the bit, the holes for the cutter ins of this series being preferably parallel with the longitudinal axis of the bit. In the second series, indicated at P, the holes K are inclined diametrically inwardly at an angle tothe longitudinal axis of the bit, and
in the third series, indicated at- Q, the holes are inclined diametrically outwardl at substantiall the same angle. The en 5 of the cutter pins L are provided with the cutting material U, which may be diamond or some other substance, set into the ends of the cutter pins L in any suitable manner.
The cutter pins are each provided with a locking notch R intermediate the length of the pin. This notch R is preferably formed relatively close to the outer end of the cutter pin and may be substantially aligned with the end face of the bit when the cutter pin has been inserted in the hole K, as indicated at R in Figure 2, or a relatively short distance from the end of the bit as indicated at P in Figure 2. The notch B may be formed with lurality of series of generally cylindrical holes I straight end surfaces S as shown in Figure 4, or inclined end surfaces T as seen in Figure 2. The cutter pins L are firmly secured in the holes K by driving or forcing the metal of the body of the bit from the end face of the bit at a point V adjacent to the cutter pin into the notches with a chisel W or other suitable tool so that the force of the blow displaces the metal and causes it to flow into the notches and form locking keys. When thus secured the cutter pins are rigidly heldagainst longitudinal and rotative movement. The cutter ins may be removed from the bit when desired by drivin a narrow chisel or other small suitably shaped implement alongside the cutter pin L so that the metal holding the pin is chipped ofi or otherwise removed from the A rotary cutting bit for a core drill, having removable cylindrical cutter pins inserted in longitudinally extending holes in the end face of the bit, each pin having a locking notch intermediate its length, and the metal of the body portion of the bit being driven or forced from the end face of the bit into said locking notches to form looking ke s to hold the pins in place and prevent t em from turning during operation of the bit.
In testimony whereof I have signed this specification.
CHARLES C. HANSEN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US616310A US1506119A (en) | 1923-02-01 | 1923-02-01 | Core-drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US616310A US1506119A (en) | 1923-02-01 | 1923-02-01 | Core-drill bit |
Publications (1)
Publication Number | Publication Date |
---|---|
US1506119A true US1506119A (en) | 1924-08-26 |
Family
ID=24468886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US616310A Expired - Lifetime US1506119A (en) | 1923-02-01 | 1923-02-01 | Core-drill bit |
Country Status (1)
Country | Link |
---|---|
US (1) | US1506119A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2638021A (en) * | 1951-10-20 | 1953-05-12 | Vof A G F Knopenfabriek | Crown drill and method of making same |
US2725216A (en) * | 1951-07-20 | 1955-11-29 | Philip B Brown | Drilling bit |
US2980098A (en) * | 1958-07-11 | 1961-04-18 | Ty Sa Man Machine Company | Grinding wheels |
US4006788A (en) * | 1975-06-11 | 1977-02-08 | Smith International, Inc. | Diamond cutter rock bit with penetration limiting |
DE2723932A1 (en) * | 1976-06-24 | 1978-01-05 | Gen Electric | ROTARY DRILL CHISEL |
FR2358537A1 (en) * | 1976-07-12 | 1978-02-10 | Christensen Inc | DIAMOND TREPAN FOR SOIL DRILLING |
FR2388983A1 (en) * | 1977-04-30 | 1978-11-24 | Christensen Inc | DRILLING TREPAN, DRILLING CONE OR OTHER DRILLING TOOLS INCLUDING INSERT DIAMOND PARTS |
US4148368A (en) * | 1976-09-27 | 1979-04-10 | Smith International, Inc. | Rock bit with wear resistant inserts |
EP0029535A1 (en) * | 1979-11-19 | 1981-06-03 | General Electric Company | Compacts for diamond drill and saw applications |
US4325439A (en) * | 1979-05-02 | 1982-04-20 | Smith International, Inc. | Diamond insert stud for a drag bit |
FR2504589A1 (en) * | 1981-04-24 | 1982-10-29 | Vennin Henri | One-piece hardened steel rotating drilling tool - having diamond cutting studs and lubricant injection ports |
US4574895A (en) * | 1982-02-22 | 1986-03-11 | Hughes Tool Company - Usa | Solid head bit with tungsten carbide central core |
US4667755A (en) * | 1984-02-29 | 1987-05-26 | Hawera Probst Gmbh & Co. | Drill bit having hollow cylindrical body and a plurality of PCD cutting elements |
EP0356657A2 (en) * | 1988-07-06 | 1990-03-07 | Eastman Teleco Company | Apparatus for taking core samples |
US5823276A (en) * | 1996-12-24 | 1998-10-20 | Beck, Iii; August H. | Diamond-tipped core barrel and method of using same |
GB2426988A (en) * | 2005-11-18 | 2006-12-13 | Geoffrey Kevin Ellison | Tubular drill shoe |
-
1923
- 1923-02-01 US US616310A patent/US1506119A/en not_active Expired - Lifetime
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2725216A (en) * | 1951-07-20 | 1955-11-29 | Philip B Brown | Drilling bit |
US2638021A (en) * | 1951-10-20 | 1953-05-12 | Vof A G F Knopenfabriek | Crown drill and method of making same |
US2980098A (en) * | 1958-07-11 | 1961-04-18 | Ty Sa Man Machine Company | Grinding wheels |
US4006788A (en) * | 1975-06-11 | 1977-02-08 | Smith International, Inc. | Diamond cutter rock bit with penetration limiting |
DE2723932A1 (en) * | 1976-06-24 | 1978-01-05 | Gen Electric | ROTARY DRILL CHISEL |
US4109737A (en) * | 1976-06-24 | 1978-08-29 | General Electric Company | Rotary drill bit |
FR2358537A1 (en) * | 1976-07-12 | 1978-02-10 | Christensen Inc | DIAMOND TREPAN FOR SOIL DRILLING |
US4148368A (en) * | 1976-09-27 | 1979-04-10 | Smith International, Inc. | Rock bit with wear resistant inserts |
FR2388983A1 (en) * | 1977-04-30 | 1978-11-24 | Christensen Inc | DRILLING TREPAN, DRILLING CONE OR OTHER DRILLING TOOLS INCLUDING INSERT DIAMOND PARTS |
US4200159A (en) * | 1977-04-30 | 1980-04-29 | Christensen, Inc. | Cutter head, drill bit and similar drilling tools |
US4325439A (en) * | 1979-05-02 | 1982-04-20 | Smith International, Inc. | Diamond insert stud for a drag bit |
EP0029535A1 (en) * | 1979-11-19 | 1981-06-03 | General Electric Company | Compacts for diamond drill and saw applications |
FR2473106A1 (en) * | 1979-11-19 | 1981-07-10 | Gen Electric | COMPOSITE DIAMOND COMPRESSES FOR TREPANS AND SAWS |
FR2504589A1 (en) * | 1981-04-24 | 1982-10-29 | Vennin Henri | One-piece hardened steel rotating drilling tool - having diamond cutting studs and lubricant injection ports |
US4574895A (en) * | 1982-02-22 | 1986-03-11 | Hughes Tool Company - Usa | Solid head bit with tungsten carbide central core |
US4667755A (en) * | 1984-02-29 | 1987-05-26 | Hawera Probst Gmbh & Co. | Drill bit having hollow cylindrical body and a plurality of PCD cutting elements |
EP0356657A2 (en) * | 1988-07-06 | 1990-03-07 | Eastman Teleco Company | Apparatus for taking core samples |
EP0356657A3 (en) * | 1988-07-06 | 1991-04-17 | Eastman Teleco Company | Apparatus for taking core samples |
US5823276A (en) * | 1996-12-24 | 1998-10-20 | Beck, Iii; August H. | Diamond-tipped core barrel and method of using same |
GB2426988A (en) * | 2005-11-18 | 2006-12-13 | Geoffrey Kevin Ellison | Tubular drill shoe |
GB2426988B (en) * | 2005-11-18 | 2007-05-30 | Geoffrey Kevin Ellison | A core tube or drill barrel and shoe |
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