US2040263A - Detachable blade bit - Google Patents

Detachable blade bit Download PDF

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Publication number
US2040263A
US2040263A US655198A US65519833A US2040263A US 2040263 A US2040263 A US 2040263A US 655198 A US655198 A US 655198A US 65519833 A US65519833 A US 65519833A US 2040263 A US2040263 A US 2040263A
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United States
Prior art keywords
blade
head
socket
shank
bit
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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
Application number
US655198A
Inventor
Leslie A Layne
Harold C Block
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LAYNE
Original Assignee
LAYNE
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Publication date
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Priority to US655198A priority Critical patent/US2040263A/en
Application granted granted Critical
Publication of US2040263A publication Critical patent/US2040263A/en
Anticipated expiration legal-status Critical
Assigned to CITICORP NORTH AMERICA, INC., AS "AGENT" reassignment CITICORP NORTH AMERICA, INC., AS "AGENT" SECURITY AGREEMENT Assignors: HAYES LEMMERZ INTERNATIONAL, INC., HAYES LEMMERZ INTERNATIONAL-CMI, INC., HAYES LEMMERZ INTERNATIONAL-EQUIPMENT & ENGINEERING, INC., HAYES LEMMERZ INTERNATIONAL-OHIO, INC., HLI OPERATING COMPANY, INC.
Assigned to CITICORP NORTH AMERICA, INC. reassignment CITICORP NORTH AMERICA, INC. SECURITY AGREEMENT Assignors: HAYES-LEMMERZ INTERNATIONAL, INC., HAYES-LEMMERZ INTERNATIONAL-EQUIPMENT AND ENGINEERING, INC., HLI OPERATING COMPANY, INC., HLI SUSPENSION HOLDING COMPANY, INC.
Expired - Lifetime legal-status Critical Current

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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
    • E21B10/62—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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/16—Longitudinal screw clamp
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908—Face or end mill
    • Y10T407/192—Face or end mill with separate means to fasten tool to holder

Definitions

  • Our invention relates to well drills, and more particularly to the type of scraping bits known generally as fishtail bits.
  • Another object of the invention is to provi'de means for securing the blade frictionally in position, and, in addition thereto, to provide a holding means which will hold the-blade positively against removal of the-blade-irom the head.
  • the invention further resides in the general arrangementandconstruction of the blade and the-head an understanding of which will appear more clearly from the description which follows.
  • Fig. 1 is a side View showing the blade in elevation and the head in central longitudinal section, a portion of the shank of the bit being broken away.
  • Fig. 2 is a side elevation of the blade detached from the head.
  • Fig. 3 is a top plan view of the blade shown in Fig. 2.
  • Fig. 4 is an edge view of the blade member shown in Fig. 2.
  • a head I which may be cylindrical in outline but having a reduced upper end 2 for connection with the drill stem.
  • a downwardly tapered box 3 in the neck 2 of the bit to connect with a tool joint or drill collar, by means of which connection is made with the drill stem.
  • a chamber 4 At the lower end of the threaded socket 3 is a chamber 4, having a lower shoulder 5 therein, upon which the blade attaching means may contact.
  • the lower end of the head is formed with a transverse slot 6 therein to receive the blade I.
  • This slot is extended upwardly at each side, as
  • the bit has an axial opening l0 therein extending from the chamber 4 through to the lower end. This opening is tapered upwardly so as to form a wedging fit with the shank H of the blade.
  • the blade 'I is of the usual fish tail form having its lower end divided at l2 midway of the 55 width thereof and one edge of the blade is curved in one direction and the other edge in the other, both sides of the blade being extended in a forward directionrelative to the rotation of the bit.
  • the shank H of the bit is tapered upwardly to fit the opening or socket l0 and is of sufiicient 5 length to project upwardly to a point spaced somewhat from the upper shoulder 5, as will be seen in Fig. 1.
  • the shank has an axial recess at its upper end, threaded at I3 to receive a locking bolt Hi. It will 10 be noted that when the shank II of the blade is in .a wedging position within the opening or socket l ii, the upper end I 5 of each wing of the blade isspaced downwardly from the upper end of the openingzB into which it fits. Likewise, the upper 15 portion iii of the blade,adjacent the lower end of the head is spaced from the head so that in case of wear of the shank in the socket the blade may be wedged further upwardly into position without coming to a stop against the upper por- 20 tions of theslot in the head which receives the blade.
  • the locking bolt l4 may be screwed in place in the upper end of the shank by tools inserted downwardly through the upper socket 3 in the 25 head.
  • an annular plate or washer I! having its lower end fitted within the opening I0 and adapted to receive the upper end of the bolt.
  • the advantage of this construction lies in the fact that it is easily and quickly secured in po-. 45 sition.
  • the blade is inserted into the position shown in Fig. 1 and driven in place with a wedging fit of the shank in the socket ID.
  • the wings 9 of the blade fit within the slot but have no action to secure the blade in position, the shank H being relied upon entirely to hold the blade in place.
  • the locking bolt M is then inserted downwardly through the socket 3 and through the washer I1 and screwed within the threaded recess I3 in the shank. As the bolt is tightened in position it will be seen that it will exert a further pull upon the blade, tending to move it into a rigid fit with the head from which it will not be removed in operation.
  • the bolt may be unscrewed and withdrawn and a driving force exerted upon the upper end of the shank II, forcing the blade from its position in the head so that it may be replaced by a newly sharpened blade.
  • a fish tail well drill including a head having a diametrical slot at its lower end, an axial upwardly-tapered socket in said head, a shoulder in said head at the upper end of said socket, a fishtail blade, a tapered shank thereon shaped to form a Wedging fit in said socket when the upper end of said blade is spaced below the upper end of said slot, a plate in said head engaging said shoulder, and a bolt extending through said plate and screwed within the upper end of said shank to secure said blade to said head.
  • a fish tail well drill including a head having a diametrical slot at its lower end, upward extensions in said slot at its ends, an axial upwardly-tapered socket in said head, a shoulder in said head at the upper end of said socket, a fishtail blade, a tapered shank thereon shaped to form a wedging fit in said socket when the upper end of said blade is spaced below the upper end of said slot, lateral, upwardly extending wings on said blade fitting within said extensions in said slot, adapted to take the driving torque from said head in the rotation of the drill, and means to fix said blade in rigid engagement with said head.
  • a fish tail Well drill including a head having a diametrical slot at its lower end, an axial upwardly-tapered socket in said head, a shoulder in said head at the upper end of said socket, a fishtail blade, a tapered shank thereon shaped to form a wedging fit in said socket when the upper end of said blade is spaced below the upper end of said slot, channels for flushing fluid in said head extending from said shoulder downwardly on each side of said blade to discharge on the advancing sides of said blade above the cutting edges thereof, and means to fix said blade in rigid engagement with said head.
  • a fish tail bit for use with rotary drill stems including a head, a blade fitting within a diametrical slot at the lower end of said head, an upper threaded socket in said head to receive the drill stem, an axial opening through said head communicating with said socket and forming a shoulder at the lower end of said socket, a central upwardly tapered shank on said blade having a frictional fit in the opening in said head, means to hold said blade in said head including a plate on said shoulder closing the upper end of said opening, and a cap screw accessible through said socket and engaging through said plate to screw into said shank.

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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

May 12, 1936.
L. A. PAYNE ET AL 2,040,263
DETACHABLE BLADE BIT 2 Sheets-Sheet 1 Filed Feb. 4, 1933 I INVENTORS. g- LESLIE A. LAYNE & HAROLD CBLOCK.
BY vi/25116 cw ATTORNEYS.
May 12, 1936 L. A LAYNE ET AL I 2,040,263
DETACHABLE BLADE' BIT Filed Feb. 4, 1933 2 Sheets-Sheet 2 JINVENTORS. LESLIE A. L4 YNE 8: Hmzow CBL OCK.
A'TTORNEYS.
Patented May 12 1936 UNITED PATENT OFFICE DETACHABLE BLADE BIT Application February 4, 1933, Serial No. 655,198
4 .Glaims.
Our invention relates to well drills, and more particularly to the type of scraping bits known generally as fishtail bits.
It is an object of our invention to provide a fish tail bit wherein the *bladeportion-thereof is "detachable andto provide means in-such a structure for easily and securelypattachingtm -blade to the head.
It is a further object ofthe invention to provide means'ior securing the blade in position, which will allowfor adjustment due to wear, 'so that the blade will constantly be held rigid even-after wear hasoccurred.
Another object of the invention is to provi'de means for securing the blade frictionally in position, and, in addition thereto, to provide a holding means which will hold the-blade positively against removal of the-blade-irom the head.
The invention further resides in the general arrangementandconstruction of the blade and the-head an understanding of which will appear more clearly from the description which follows.
In the drawings herewith, Fig. 1 is a side View showing the blade in elevation and the head in central longitudinal section, a portion of the shank of the bit being broken away.
Fig. 2 is a side elevation of the blade detached from the head.
Fig. 3 is a top plan view of the blade shown in Fig. 2.
Fig. 4 is an edge view of the blade member shown in Fig. 2.
In constructing our improved bit we form a head I which may be cylindrical in outline but having a reduced upper end 2 for connection with the drill stem. Instead of the usual upwardly tapered shank we provide a downwardly tapered box 3 in the neck 2 of the bit to connect with a tool joint or drill collar, by means of which connection is made with the drill stem. At the lower end of the threaded socket 3 is a chamber 4, having a lower shoulder 5 therein, upon which the blade attaching means may contact.
The lower end of the head is formed with a transverse slot 6 therein to receive the blade I.
This slot is extended upwardly at each side, as
shown at 8, to receive the upwardly extending wings 9 on the blade. The bit has an axial opening l0 therein extending from the chamber 4 through to the lower end. This opening is tapered upwardly so as to form a wedging fit with the shank H of the blade.
The blade 'I is of the usual fish tail form having its lower end divided at l2 midway of the 55 width thereof and one edge of the blade is curved in one direction and the other edge in the other, both sides of the blade being extended in a forward directionrelative to the rotation of the bit. The shank H of the bit is tapered upwardly to fit the opening or socket l0 and is of sufiicient 5 length to project upwardly to a point spaced somewhat from the upper shoulder 5, as will be seen in Fig. 1.
The shank has an axial recess at its upper end, threaded at I3 to receive a locking bolt Hi. It will 10 be noted that when the shank II of the blade is in .a wedging position within the opening or socket l ii, the upper end I 5 of each wing of the blade isspaced downwardly from the upper end of the openingzB into which it fits. Likewise, the upper 15 portion iii of the blade,adjacent the lower end of the head is spaced from the head so that in case of wear of the shank in the socket the blade may be wedged further upwardly into position without coming to a stop against the upper por- 20 tions of theslot in the head which receives the blade.
The locking bolt l4 may be screwed in place in the upper end of the shank by tools inserted downwardly through the upper socket 3 in the 25 head. We contemplate the use of an annular plate or washer I! having its lower end fitted within the opening I0 and adapted to receive the upper end of the bolt. We may provide a looking ring I8 between the head of the bolt and the plate or washer l1, so that when the bolt is tightened in the socket [3 it may serve to draw the shank more securely in position in the head and prevent any tendency of the bit to be lost in the hole. 35
The flushing fiuid in this tool will pass from the chamber 4 through downwardly inclined water courses shown at IS in dotted lines in Fig.
1. It is to be understood that there are two oppositely inclined water courses one on each 40 side of the head, which tend todischarge the flushing fluid in front of the cutting edges of the blade.
The advantage of this construction lies in the fact that it is easily and quickly secured in po-. 45 sition. The blade is inserted into the position shown in Fig. 1 and driven in place with a wedging fit of the shank in the socket ID. The wings 9 of the blade fit within the slot but have no action to secure the blade in position, the shank H being relied upon entirely to hold the blade in place. The locking bolt M is then inserted downwardly through the socket 3 and through the washer I1 and screwed within the threaded recess I3 in the shank. As the bolt is tightened in position it will be seen that it will exert a further pull upon the blade, tending to move it into a rigid fit with the head from which it will not be removed in operation.
Due to the fact that the driving torque of the head relative to the blade is taken up by the sides of the slot 8, into which the blade fits, there will be no relative rotation of the blade relative to the head. Furthermore, due to the fact that the weight of the head rests upon the blade there will be no heavy force tending to remove the blade from the head. The driving fit of the tapered shank H in the socket [0 will be entirely sufiicient to hold the same against removal. The locking bolt I4 is an extra provision which is made to prevent any accidental loosening of the shank in the socket. It is, therefore, simply a safety measure but ordinarily will not be necessary. It will be easily seen that when the blade is to be removed the bolt may be unscrewed and withdrawn and a driving force exerted upon the upper end of the shank II, forcing the blade from its position in the head so that it may be replaced by a newly sharpened blade.
Having described our invention, what we claim as new is:
1. A fish tail well drill including a head having a diametrical slot at its lower end, an axial upwardly-tapered socket in said head, a shoulder in said head at the upper end of said socket, a fishtail blade, a tapered shank thereon shaped to form a Wedging fit in said socket when the upper end of said blade is spaced below the upper end of said slot, a plate in said head engaging said shoulder, and a bolt extending through said plate and screwed within the upper end of said shank to secure said blade to said head.
2. A fish tail well drill including a head having a diametrical slot at its lower end, upward extensions in said slot at its ends, an axial upwardly-tapered socket in said head, a shoulder in said head at the upper end of said socket, a fishtail blade, a tapered shank thereon shaped to form a wedging fit in said socket when the upper end of said blade is spaced below the upper end of said slot, lateral, upwardly extending wings on said blade fitting within said extensions in said slot, adapted to take the driving torque from said head in the rotation of the drill, and means to fix said blade in rigid engagement with said head.
3. A fish tail Well drill including a head having a diametrical slot at its lower end, an axial upwardly-tapered socket in said head, a shoulder in said head at the upper end of said socket, a fishtail blade, a tapered shank thereon shaped to form a wedging fit in said socket when the upper end of said blade is spaced below the upper end of said slot, channels for flushing fluid in said head extending from said shoulder downwardly on each side of said blade to discharge on the advancing sides of said blade above the cutting edges thereof, and means to fix said blade in rigid engagement with said head.
4. A fish tail bit for use with rotary drill stems including a head, a blade fitting within a diametrical slot at the lower end of said head, an upper threaded socket in said head to receive the drill stem, an axial opening through said head communicating with said socket and forming a shoulder at the lower end of said socket, a central upwardly tapered shank on said blade having a frictional fit in the opening in said head, means to hold said blade in said head including a plate on said shoulder closing the upper end of said opening, and a cap screw accessible through said socket and engaging through said plate to screw into said shank.
LESLIE A. LAYNE. HAROLD C. BLOCK.
US655198A 1933-02-04 1933-02-04 Detachable blade bit Expired - Lifetime US2040263A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507439A (en) * 1946-09-28 1950-05-09 Reed Roller Bit Co Drill bit
US2667687A (en) * 1950-12-04 1954-02-02 Clarkson Frank Henry Toolholder
US2817496A (en) * 1954-08-06 1957-12-24 Edmund E Jones Expendable drill bit and adapter
US3139149A (en) * 1959-03-31 1964-06-30 Dionisotti Joseph Rock drilling tool
US4799838A (en) * 1985-04-16 1989-01-24 Daishowa Seiki Co., Ltd. Milling cutter
US5607263A (en) * 1993-04-14 1997-03-04 Zettl Gmbh Cnc Prazisions-Und Sonderwerkzuege Cutting tool
US20080115978A1 (en) * 2006-08-11 2008-05-22 Hall David R Shank Assembly with a Tensioned Element
US8007051B2 (en) 2006-08-11 2011-08-30 Schlumberger Technology Corporation Shank assembly
US8573912B2 (en) 2011-02-03 2013-11-05 Kennametal Inc. Fastener for attaching a milling cutter body to an adaptor and method of installing same
US8701799B2 (en) 2009-04-29 2014-04-22 Schlumberger Technology Corporation Drill bit cutter pocket restitution
US20190051994A1 (en) * 2016-04-15 2019-02-14 Bayerische Motoren Werke Aktiengesellschaft Connection Arrangement of a First Component on a Second Component, in Particular for a Vehicle, and Connection Device, in Particular for a Vehicle

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507439A (en) * 1946-09-28 1950-05-09 Reed Roller Bit Co Drill bit
US2667687A (en) * 1950-12-04 1954-02-02 Clarkson Frank Henry Toolholder
US2817496A (en) * 1954-08-06 1957-12-24 Edmund E Jones Expendable drill bit and adapter
US3139149A (en) * 1959-03-31 1964-06-30 Dionisotti Joseph Rock drilling tool
US4799838A (en) * 1985-04-16 1989-01-24 Daishowa Seiki Co., Ltd. Milling cutter
US5607263A (en) * 1993-04-14 1997-03-04 Zettl Gmbh Cnc Prazisions-Und Sonderwerkzuege Cutting tool
US20080115978A1 (en) * 2006-08-11 2008-05-22 Hall David R Shank Assembly with a Tensioned Element
US8007051B2 (en) 2006-08-11 2011-08-30 Schlumberger Technology Corporation Shank assembly
US8414085B2 (en) * 2006-08-11 2013-04-09 Schlumberger Technology Corporation Shank assembly with a tensioned element
US8701799B2 (en) 2009-04-29 2014-04-22 Schlumberger Technology Corporation Drill bit cutter pocket restitution
US8573912B2 (en) 2011-02-03 2013-11-05 Kennametal Inc. Fastener for attaching a milling cutter body to an adaptor and method of installing same
US20190051994A1 (en) * 2016-04-15 2019-02-14 Bayerische Motoren Werke Aktiengesellschaft Connection Arrangement of a First Component on a Second Component, in Particular for a Vehicle, and Connection Device, in Particular for a Vehicle
US10756451B2 (en) * 2016-04-15 2020-08-25 Bayerische Motoren Werke Aktiengesellschaft Connection arrangement of a first component on a second component, in particular for a vehicle, and connection device, in particular for a vehicle

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Owner name: CITICORP NORTH AMERICA, INC., AS "AGENT", NEW YORK

Free format text: SECURITY AGREEMENT;ASSIGNORS:HLI OPERATING COMPANY, INC.;HAYES LEMMERZ INTERNATIONAL, INC.;HAYES LEMMERZ INTERNATIONAL-OHIO, INC.;AND OTHERS;REEL/FRAME:014178/0834

Effective date: 20030603

AS Assignment

Owner name: CITICORP NORTH AMERICA, INC.,NEW YORK

Free format text: SECURITY AGREEMENT;ASSIGNORS:HAYES-LEMMERZ INTERNATIONAL, INC.;HLI OPERATING COMPANY, INC.;HAYES-LEMMERZ INTERNATIONAL-EQUIPMENT AND ENGINEERING, INC.;AND OTHERS;REEL/FRAME:015991/0242

Effective date: 20050411

Owner name: CITICORP NORTH AMERICA, INC., NEW YORK

Free format text: SECURITY AGREEMENT;ASSIGNORS:HAYES-LEMMERZ INTERNATIONAL, INC.;HLI OPERATING COMPANY, INC.;HAYES-LEMMERZ INTERNATIONAL-EQUIPMENT AND ENGINEERING, INC.;AND OTHERS;REEL/FRAME:015991/0242

Effective date: 20050411