US762099A - Auger-bit. - Google Patents

Auger-bit. Download PDF

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Publication number
US762099A
US762099A US19967304A US1904199673A US762099A US 762099 A US762099 A US 762099A US 19967304 A US19967304 A US 19967304A US 1904199673 A US1904199673 A US 1904199673A US 762099 A US762099 A US 762099A
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United States
Prior art keywords
auger
thread
bit
point
floor
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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
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US19967304A
Inventor
Norman Sperry
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Individual
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Individual
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Priority to US19967304A priority Critical patent/US762099A/en
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Publication of US762099A publication Critical patent/US762099A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G15/00Boring or turning tools; Augers
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/901Having axially extending peripheral cutting spur

Definitions

  • Figure 1 aside view of the end of an angerbit constructed in accordance with my invention; Fig. 2, a similar view turned half around; Fig. 3, an end or plan view.
  • This invention relates to an improvement in auger-bits, and particularly to that class which include a spiral head ,or body, two floor-lips, with a gimlet-point.
  • bits of this character it is desirable that a coarse thread should be employed on the point in The head or body A of the bit is of usual spiral form, terminating in floor-lips B C, and
  • a thread H which extends around the point F midway between the threads G and dies out into the point about midway of its length.
  • the thread G at the lower portion of the point forms a coarse thread and gives the required draw, while the thread H assists the thread G in giving sufficient out to the Wood and provides a cutting-thread for each floor-lip, thus giving all the practical advantages of a double-threaded point and the drawing qualities of a single thread.
  • An auger-bit comprising a body, two floorlips and a point, a thread extending from one floor-lip to the outer end of the point, and a thread extending from the other floor-lip between the other threads and dying out above the outer end of the point, substantially as described.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)

Description

No. 762,099. PATENTED JUNE 7, 1904.
. N. SPBRRY.
AUGER BIT.
APPLICATION FILED MAR. 24. 1904.
N0 IODEL.
TM! NORRISPETZRSY cot. PHOTO-LITNO. WASHINGTON. n. c.
UNITED STATES Patented June '7, 1904.
PATENT OFFICE.
AUGER-BIT.
SPECIFICATION forming part of Letters Patent No. 762,099, dated June 7, 1904.
Application filed March 24:, 1904.
To all whom it may concern:
Be it known that I, NORMAN SPERRY, of Seymour, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Auger-Bits; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in
Figure 1, aside view of the end of an angerbit constructed in accordance with my invention; Fig. 2, a similar view turned half around; Fig. 3, an end or plan view.
This invention relates to an improvement in auger-bits, and particularly to that class which include a spiral head ,or body, two floor-lips, with a gimlet-point. In bits of this character it is desirable that a coarse thread should be employed on the point in The head or body A of the bit is of usual spiral form, terminating in floor-lips B C, and
Serial No. 199,673. (No model.)
while the inner edge of the lip B merges into,
a thread H, which extends around the point F midway between the threads G and dies out into the point about midway of its length. The thread G at the lower portion of the point forms a coarse thread and gives the required draw, while the thread H assists the thread G in giving sufficient out to the Wood and provides a cutting-thread for each floor-lip, thus giving all the practical advantages of a double-threaded point and the drawing qualities of a single thread. I
Having fully described my invention, What I claim as new, and desire to secure by Letters Patent, is
An auger-bit comprising a body, two floorlips and a point, a thread extending from one floor-lip to the outer end of the point, and a thread extending from the other floor-lip between the other threads and dying out above the outer end of the point, substantially as described.
In testimony whereof I have signed this specification in the presence of two subscribing witnesses.
NORMAN SPERRY. Witnesses:
FREDEEIc C. EARLE, CLARA L. WEED.
US19967304A 1904-03-24 1904-03-24 Auger-bit. Expired - Lifetime US762099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US19967304A US762099A (en) 1904-03-24 1904-03-24 Auger-bit.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19967304A US762099A (en) 1904-03-24 1904-03-24 Auger-bit.

Publications (1)

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US762099A true US762099A (en) 1904-06-07

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Family Applications (1)

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US19967304A Expired - Lifetime US762099A (en) 1904-03-24 1904-03-24 Auger-bit.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110085866A1 (en) * 2009-09-10 2011-04-14 Thomas Evatt Wood boring bit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110085866A1 (en) * 2009-09-10 2011-04-14 Thomas Evatt Wood boring bit
US8727679B2 (en) 2009-09-10 2014-05-20 Techtronic Power Tools Technology Limited Wood boring bit

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