US205218A - Improvement in augers - Google Patents

Improvement in augers Download PDF

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Publication number
US205218A
US205218A US205218DA US205218A US 205218 A US205218 A US 205218A US 205218D A US205218D A US 205218DA US 205218 A US205218 A US 205218A
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United States
Prior art keywords
screw
improvement
slide
lip
augers
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Expired - Lifetime
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/03—Boring heads
    • B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
    • B23B29/03403—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing
    • B23B29/03407—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of screws and nuts
    • B23B29/0341—Cartridges
    • 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
    • Y10T408/83—Tool-support with means to move Tool relative to tool-support
    • 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
    • Y10T408/901—Having axially extending peripheral cutting spur

Definitions

  • My improvement relates to angers which have a cutting-lip upon the circumference of the twisted shank to form a circular cut or groove, from which theinterior is removed by a horizontal radial edge, and in which the said cuttinglip is made adjustable.
  • the object of my invention is to provide a cutting-lip which can be readily adjustable by means of a screw, and can be easily removed for the purpose of sharpening.
  • My invention consists in the construction and arrangement of the several parts, as will be hereinafter described.
  • Figurel is a side View of the end of the twisted shank of an auger provided with my improvement.
  • Fig. 2 is a vertical section through the same from front to rear of the view shown in Fig. 1.
  • Fig. 3 is a bottom View of the same.
  • A is the twisted shank of the auger, constructed in the usual manner, except that the web at the bottom is thickened in the portion to which the cutting-lip is attached.
  • B is the horizontal cutting-edge for removing the wood from the hole bored.
  • C is a central leadingscrew of the ordinary construction.
  • D is a slide, upon the lower end of which is formed the cutting-lip, which cuts the circumferential in the slot, and cannot be pressed out laterally. Upon the inner side of the slide D there is a part of the circumference of ahollow nut which fits upon the screw.
  • E is a screw, which rests in asocket in the shank A, as shown in Fig. 2, and projec s sufficiently to engage with the hollow thread upon the inner side of the slide D.
  • the screw E is held in place and prevented from moving longitudinally by means of a pin, G, the end of which projects into a groove in the body of the screw, and also by the end of the screw resting against the end of the socket, as shown in Fig. 2.
  • the screw E is turned sufficiently to draw the slide down until it is released from the slot in which it moves. It is replaced by again inserting the end and turning the screw back.
  • the screw is turned by means of an ordinary screw-driver inserted in a slot in the end of the screw.
  • the lip and slide D can be firmly held in any desired position without danger of slipping by any pressure that can come upon the lip.

Description

G. P. EARNS.
. BI'S.
No. 205,218. Patented June 25; I878."
UNITED STATES PATENT OFFICE.
GEORGE F. STEARNS, OF FORESTVILLE, ASSIGNOR TO HIMSELF AND RICHARD J. ALLYN, OF HARTFORD, CONNECTICUT.
IMPROVEMENT IN AUGERS.
Specification forming part of Letters Patent No. 205,218, dated June 25, 1878; application filed May 22, 1878.
To all whom it may concern:
Be it known that I, GEORGE F. STEARNS, of Forestville, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Angers and I do hereby declare that the following is a full, clear, and exact description thereof, whereby a person skilled in the art can make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
Like letters in the figures indicate the same parts.
My improvement relates to angers which have a cutting-lip upon the circumference of the twisted shank to form a circular cut or groove, from which theinterior is removed by a horizontal radial edge, and in which the said cuttinglip is made adjustable.
The object of my invention is to provide a cutting-lip which can be readily adjustable by means of a screw, and can be easily removed for the purpose of sharpening.
My invention consists in the construction and arrangement of the several parts, as will be hereinafter described.
1n the accompanying drawing, Figurel is a side View of the end of the twisted shank of an auger provided with my improvement. Fig. 2 is a vertical section through the same from front to rear of the view shown in Fig. 1. Fig. 3 is a bottom View of the same.
A is the twisted shank of the auger, constructed in the usual manner, except that the web at the bottom is thickened in the portion to which the cutting-lip is attached. B is the horizontal cutting-edge for removing the wood from the hole bored. C is a central leadingscrew of the ordinary construction. D is a slide, upon the lower end of which is formed the cutting-lip, which cuts the circumferential in the slot, and cannot be pressed out laterally. Upon the inner side of the slide D there is a part of the circumference of ahollow nut which fits upon the screw.
E is a screw, which rests in asocket in the shank A, as shown in Fig. 2, and projec s sufficiently to engage with the hollow thread upon the inner side of the slide D.
The screw E is held in place and prevented from moving longitudinally by means of a pin, G, the end of which projects into a groove in the body of the screw, and also by the end of the screw resting against the end of the socket, as shown in Fig. 2.
The operation of my invention is as follows: When it is desired to advance the cuttinglip upon the lower end of D, so as to make a deeper out around the circumference of the hole, the screw E is turned as if to force it inward. This draws out the slide as desired. A reverse motion of the screw throws the slide upward.
If it is desired to remove the slide entirely for the purpose of sharpening or otherwise, the screw E is turned sufficiently to draw the slide down until it is released from the slot in which it moves. It is replaced by again inserting the end and turning the screw back. The screw is turned by means of an ordinary screw-driver inserted in a slot in the end of the screw.
By means of my improvement the lip and slide D can be firmly held in any desired position without danger of slipping by any pressure that can come upon the lip.
What I claim as my invention is- The combination, with the shank of an auger, of the longitudinally-moving lip-slide I), having a thread upon its inner side, and the adjusting-screw E, engaging in said thread and turning in 'a socket in the shank, substantially as herein described.
GEORGE F. STEARNS. Witnesses:
THEO. G. ELLIs, EDWIN S. WEsTooTT.
US205218D Improvement in augers Expired - Lifetime US205218A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090087273A1 (en) * 2006-03-02 2009-04-02 Douglas Allen Cutting tool
US9500038B2 (en) 2013-02-01 2016-11-22 Milwaukee Electric Tool Corporation Auger bit with replaceable cutting bit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090087273A1 (en) * 2006-03-02 2009-04-02 Douglas Allen Cutting tool
US20100322733A1 (en) * 2006-03-02 2010-12-23 Douglas Allen Cutting tool
US8328477B2 (en) 2006-03-02 2012-12-11 Milwaukee Electric Tool Corporation Cutting tool
US8371777B2 (en) * 2006-03-02 2013-02-12 Milwaukee Electric Tool Corporation Cutting tool
US9339874B2 (en) 2006-03-02 2016-05-17 Milwaukee Electric Tool Corporation Cutting tool
US10618119B2 (en) 2006-03-02 2020-04-14 Milwaukee Electric Tool Corporation Cutting tool
US9500038B2 (en) 2013-02-01 2016-11-22 Milwaukee Electric Tool Corporation Auger bit with replaceable cutting bit

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