US1292842A - Rotary drilling-tool. - Google Patents

Rotary drilling-tool. Download PDF

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Publication number
US1292842A
US1292842A US22038818A US22038818A US1292842A US 1292842 A US1292842 A US 1292842A US 22038818 A US22038818 A US 22038818A US 22038818 A US22038818 A US 22038818A US 1292842 A US1292842 A US 1292842A
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United States
Prior art keywords
bit
rod
head
shank
tool
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
Application number
US22038818A
Inventor
Charles P Mayner
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Individual
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Individual
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Priority to US22038818A priority Critical patent/US1292842A/en
Application granted granted Critical
Publication of US1292842A publication Critical patent/US1292842A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
    • B23B31/10741—Retention by substantially radially oriented pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
    • B23B31/1072—Retention by axially or circumferentially oriented cylindrical elements
    • 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
    • Y10T279/17—Socket type
    • Y10T279/17923—Transverse pin
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7075—Interfitted members including discrete retainer
    • Y10T403/7077—Interfitted members including discrete retainer for telescoping members
    • Y10T403/7079—Transverse pin
    • Y10T403/7084—Bolt, rivet, or screw

Definitions

  • My invention relates to rotary drills, being more particularly a form of fish tail bit, ⁇ and the mountin of the same.
  • the bits are provided at their upper end with a threaded shank which is threaded into a collar mounted on the lower end of the drill pipe.
  • One of the main objects of my invention is to produce a bit which may be quickly attached and detached, the bit being of extremely simple form and construction, having therein a minimum amount of metal.
  • Figure 1 is a vertical sectional view of a drilling device embodying a form of my invention.
  • Fig. 2 is a view similar to Fig. 1 showing the bit in the position for removing the same.
  • Fig. 3 is a vertical 3-3, Fi 1.
  • Fig. 4 is a sectional plan view on line 4-4 of Fig. 1.
  • Fig. 5 is a sectional Fig. 1, and
  • Fig. 6 is a sectional plan view on line 6-6 of Fig. 1.
  • Fig. 7 is a fragmentary perspective view of the bit and its supporting rod.
  • 10 designates a bit, the blade of which is of the common fish tail variety, having a flat shank 11 which fits into a recess 12 formed in the lower end of a head 13.
  • 14 designates a rod which slidably extends through a. central bore in the head 13, the lower end of the rod 14 extending into a hole formed in the upper end of the bit.
  • 16 designates a pin which extendsv through a hole 17 formed in the shank 11, the pin 16 extending through a hole 18 formed in the rod 14 thereby fixing the bit to the rod 14.
  • Ihe head 13 is recessedat its upper end, as indicated at 20, and is exteriorly threaded, as indicated at 21, for attachment to the lower end of a barrel 22 which may be sea shoulder 26 formed in the head 13, the
  • tension of the spring 25 being sufficient to hold the shank 11 firmly in the recess 12 in the lower end of the head.
  • the upper end of the rod 14 and the spring 25 are prcferably protected from dirt and other objectionable matter by means of a section of pipe 30 threaded into the upper end of the head 13, the upper end of the pipe 30 being closed by a cap 31.
  • the lower end of the head 13 is slotted as indicated at which receives a shouldered portion 34 of the bit 10, such construction giving additional strength in the connection between the bit and head.
  • the bit When it is desired to replace a bit, the bit is pulled downwardly from the position shown in Fig. 1 to that shown in Fig. 2 by placing a hook or other suitable fastening means through an eye 35 formed in the bit.
  • a bar or pin 36 When the bit is so extended a bar or pin 36 is inserted through an opening 37 in one side of the head 13, the bar 36 extending into an elongated slot or opening 38 in the rod 14, as shown in Fig. 2, in which position the tension of the spring 25 is taken by the bar 36.
  • the pin 16 may now be easily removed as the same is in the slotted portion 33 of the head 13, a suitable tool, as indicated at 40, being placed in the position shown and the pin 16 driven out after which the bit 10 may be removed from the rod 14 and a new one placed upon the rod, the pin 16 being driven into place, the tension against the bar 36 relieved by pulling the bit slightly downwardly, the bar 36 removed and the shank of the bit allowed to enter the recess in the lower end of the head until the shouldered portion 34 of the bit is seated in the slotted portion 33 of the head 13.
  • a suitable tool as indicated at 40
  • a bit so made and mounted may be very quickly replaced and the amount of metal in the shank 11 being materially reduced over that in the common forms of bit.
  • a bit so formed is economical and ⁇ superior to the common forms of bit now same.
  • a drilling tool comprising a head hav'- ing a recess in its lower end, a bit, a shank on the bit slidably extending into the recess, means forsecuring the bit to-the head,
  • said means comprising a rod slidably ex- ⁇ tending into the head, elastic means for holding the rod in upward position and a removable pin extending through the shank i and rod, and means for holding said rod in extended position to permit said bit to be removed from. the rod.
  • a ldrilling tool comprising a head having a recess in its lower end, a bit, a shank on the bit slidably extending into the recess, means for securing the bit Ato the head, said means-comprising a rod slidably extending through the head, a removable pinextending through the shank and rod, a coiled spring on said rod, and means on the upper end of said rod for confining said spring to exert an upward tension on the rod, and means for holding said rod in extended position to permit said bit to be removed from the rod.
  • a drilling tool comprising a head having a recess in its lower end, a bit, a shank on the bit slidably extending into the recess, and means for securing the bit to the head, said means comprising a rod slidably extending through the head, a removable pm extending through the shank and rod, a coiled spring ⁇ on said rod, and means on the upper end of said, rod f or confining said spring to exert an upwardtension on the rod, said rod having an elongated opening therein and said head having a tool receiving opening therein to register with the elongated opening in the rod when the bit is in extended position.
  • a drilling tool comprising a head having a recess 1n its lower end, a removable bit, a shank on the bit slidably extending into the recess, means for securing the bitl to the head, said means comprising arod slidably extending centrally into the head,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Description

C. P. MAYNER.` .ROTARY DRILLING TOOL.
APPLICATION msu MAR. 4, ma.
Patented Jan. 28,1919.
CHARLES P. MAYNEI'B., OF MONTEBELLO, CALIFORNIA.
ROTARY DBILLINGMTOOL.
Specication of Letters Patent.
Patented J an. 28, 1919.
Application led March 4, 1918. Serial No. 220,388.
To all whoml z't may concern:
Be it known that I, CHARLES P. MAYNER, a citizen of the United States, residing at Montebello, in the county of Los Angeles and State of California, have invented a new and useful Rotary Drilling-Tool, of which the following is a specication.
My invention relates to rotary drills, being more particularly a form of fish tail bit,` and the mountin of the same. In common forms of fish tail bits the bits are provided at their upper end with a threaded shank which is threaded into a collar mounted on the lower end of the drill pipe.
This shank is of considerable size, and when the bit is worn down toV a point where the same is useless for drilling purposes the discarding of such a bit entails a loss of considerable metal.
One of the main objects of my invention is to produce a bit which may be quickly attached and detached, the bit being of extremely simple form and construction, having therein a minimum amount of metal.
Referring to the drawings, which are for illustrative purposes only,
Figure 1 is a vertical sectional view of a drilling device embodying a form of my invention.
Fig. 2 is a view similar to Fig. 1 showing the bit in the position for removing the same.
Fig. 3 is a vertical 3-3, Fi 1.
Fig. 4 is a sectional plan view on line 4-4 of Fig. 1.
Fig. 5 is a sectional Fig. 1, and
Fig. 6 is a sectional plan view on line 6-6 of Fig. 1.
Fig. 7 is a fragmentary perspective view of the bit and its supporting rod.
10 designates a bit, the blade of which is of the common fish tail variety, having a flat shank 11 which fits into a recess 12 formed in the lower end of a head 13. 14 designates a rod which slidably extends through a. central bore in the head 13, the lower end of the rod 14 extending into a hole formed in the upper end of the bit. 16 designates a pin which extendsv through a hole 17 formed in the shank 11, the pin 16 extending through a hole 18 formed in the rod 14 thereby fixing the bit to the rod 14. y
sectional view on line plan view on line 5 5,
' Ihe head 13 is recessedat its upper end, as indicated at 20, and is exteriorly threaded, as indicated at 21, for attachment to the lower end of a barrel 22 which may be sea shoulder 26 formed in the head 13, the
tension of the spring 25 being sufficient to hold the shank 11 firmly in the recess 12 in the lower end of the head. The upper end of the rod 14 and the spring 25 are prcferably protected from dirt and other objectionable matter by means of a section of pipe 30 threaded into the upper end of the head 13, the upper end of the pipe 30 being closed by a cap 31. The lower end of the head 13 is slotted as indicated at which receives a shouldered portion 34 of the bit 10, such construction giving additional strength in the connection between the bit and head.
When it is desired to replace a bit, the bit is pulled downwardly from the position shown in Fig. 1 to that shown in Fig. 2 by placing a hook or other suitable fastening means through an eye 35 formed in the bit. When the bit is so extended a bar or pin 36 is inserted through an opening 37 in one side of the head 13, the bar 36 extending into an elongated slot or opening 38 in the rod 14, as shown in Fig. 2, in which position the tension of the spring 25 is taken by the bar 36. The pin 16 may now be easily removed as the same is in the slotted portion 33 of the head 13, a suitable tool, as indicated at 40, being placed in the position shown and the pin 16 driven out after which the bit 10 may be removed from the rod 14 and a new one placed upon the rod, the pin 16 being driven into place, the tension against the bar 36 relieved by pulling the bit slightly downwardly, the bar 36 removed and the shank of the bit allowed to enter the recess in the lower end of the head until the shouldered portion 34 of the bit is seated in the slotted portion 33 of the head 13.
A bit so made and mounted may be very quickly replaced and the amount of metal in the shank 11 being materially reduced over that in the common forms of bit. A bit so formed is economical and `superior to the common forms of bit now same.
What ll claim is 1. A drilling tool comprising a head hav'- ing a recess in its lower end, a bit, a shank on the bit slidably extending into the recess, means forsecuring the bit to-the head,
said means comprising a rod slidably ex-` tending into the head, elastic means for holding the rod in upward position and a removable pin extending through the shank i and rod, and means for holding said rod in extended position to permit said bit to be removed from. the rod. Y,
2. A ldrilling tool comprising a head having a recess in its lower end, a bit, a shank on the bit slidably extending into the recess, means for securing the bit Ato the head, said means-comprising a rod slidably extending through the head, a removable pinextending through the shank and rod, a coiled spring on said rod, and means on the upper end of said rod for confining said spring to exert an upward tension on the rod, and means for holding said rod in extended position to permit said bit to be removed from the rod.
3. A drilling tool comprising a head having a recess in its lower end, a bit, a shank on the bit slidably extending into the recess, and means for securing the bit to the head, said means comprising a rod slidably extending through the head, a removable pm extending through the shank and rod, a coiled spring` on said rod, and means on the upper end of said, rod f or confining said spring to exert an upwardtension on the rod, said rod having an elongated opening therein and said head having a tool receiving opening therein to register with the elongated opening in the rod when the bit is in extended position. Y
4. A drilling tool comprising a head having a recess 1n its lower end, a removable bit, a shank on the bit slidably extending into the recess, means for securing the bitl to the head, said means comprising arod slidably extending centrally into the head,
elasticmeans for holding the rod in upward position and a removable' pin extendlng through the shank and rod, a shouldered portion on said bit, said head having a slotted portion adapted to receive the shouldered. portion of the bit, and means whereby said rod may be retained in extended position in the head to permit said bit to be removed from the rod.
In testimony whereof, I have hereunto s et l my hand at Los Angeles, California, this 20th day of February, 1918.
CHARLES MAYNER.
US22038818A 1918-03-04 1918-03-04 Rotary drilling-tool. Expired - Lifetime US1292842A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869387A (en) * 1952-08-15 1959-01-20 Louden Russell Lee Television aerial mast turner
US3069875A (en) * 1962-03-26 1962-12-25 Logan Gear Company Inc Quick-change universal drive shaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869387A (en) * 1952-08-15 1959-01-20 Louden Russell Lee Television aerial mast turner
US3069875A (en) * 1962-03-26 1962-12-25 Logan Gear Company Inc Quick-change universal drive shaft

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