US514178A - Geons - Google Patents

Geons Download PDF

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Publication number
US514178A
US514178A US514178DA US514178A US 514178 A US514178 A US 514178A US 514178D A US514178D A US 514178DA US 514178 A US514178 A US 514178A
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United States
Prior art keywords
bit
extension
geons
bourgeons
lever
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
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • 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
    • Y10T408/899—Having inversely angled cutting edge
    • Y10T408/90—Having inversely angled cutting edge and axially extending peripheral cutting spur

Definitions

  • FIG. 1 represents a perspective view of a bit having my invention applied thereto.
  • Fig. 2 is a side elevation thereof; and
  • Fig. 3 is a detail view of the extension.
  • ' A indicates the square end of an ordinary bit 0, adapted to be inserted in the socket of a revoluble handle, to which suitable power may be applied manually or otherwise.
  • extension F having a sharp, tapering end, H

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Finger-Pressure Massage (AREA)

Description

. m A. A. BOURGEONS.
BIT.
, No.'514,1'78." 'Pat ented Feb; 6", 1894.
UNITED STATES PATENT OFFICE.-
ABRAHAM A. BOURGEONS, OF EAST LONGMEADOW, MASSACHUSETTS.
BIT.
SPECIFICATION forming part of Letters Patent No. 514,178, dated February 6, 1894.
Application filed September 7 1893- Serial No.484,993. (No model.)
companying drawings, and to the letters of reference marked thereon, which form a part of this specification.
My invention relates to bits; and its obj cots are hereinafter more fully described and specified. I accomplish these objects by the device illustrated in the accompanying drawings, in which- Figure 1 represents a perspective view of a bit having my invention applied thereto. Fig. 2 is a side elevation thereof; and Fig. 3 is a detail view of the extension.
The same letters refer to corresponding parts in all the views.
' A indicates the square end of an ordinary bit 0, adapted to be inserted in the socket of a revoluble handle, to which suitable power may be applied manually or otherwise. An
extension F having a sharp, tapering end, H
at the bottom is integrally constructed, at its upper terminus with the lever D having a centraLthreaded aperture E meshing with the threads of the bit O,and at its lower terminus with a threaded ring G, concentric with the aperture E of the lever D. It is thus apparent that in the boring operation the area of the resulting perforation has a common radius with that indicated by the combined radii of the bit and the extension F.
By providing extensions F of difierent widths, apertures of varying diameters are secured. V
Having thus fully described my invention, what I claim is- The combination with the bit 0 of the variable extension F having a tapering sharp point H at its lower end and the threaded ring G in the same plane approximately therewith andhaving at its upper end a lever D with a central threaded aperture E meshing with the threads of the bit, for the purpose set forth.
In testimony whereof I affix my signature in presence of two witnesses.
ABRAHAM A. BOURGEONS.
Witnesses:
WM. S. BELLOWS, K. I. OLEMoNs.
US514178D Geons Expired - Lifetime US514178A (en)

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Publication Number Publication Date
US514178A true US514178A (en) 1894-02-06

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US514178D Expired - Lifetime US514178A (en) Geons

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