US140832A - Improvement in sharpening-machines - Google Patents

Improvement in sharpening-machines Download PDF

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Publication number
US140832A
US140832A US140832DA US140832A US 140832 A US140832 A US 140832A US 140832D A US140832D A US 140832DA US 140832 A US140832 A US 140832A
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Prior art keywords
lathe
machines
screw
sharpening
improvement
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • 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
    • Y10T408/34—Combined cutting means
    • 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
    • Y10T408/65—Means to drive tool

Definitions

  • the invention consists in the improvements of machines for dressing lathe-centers, as hereinafter described and pointed out in the claim.
  • Figure 1 is a side elevation of our improved machine for dressing lathe-centers with a part of the frame sectioned.
  • Fig. 2 is a plan view.
  • A is a small cast-metal frame, which is bolted at B to a support, C, having a socket-piece, D, attached to fasten it on the end of a square bar, E, which is to be fastened in the tool-post of ⁇ a lathe, so as to support the frame relatively to the center F of a lathe,as shown in Fig. 2.
  • y G is a mandrel, on which the grinding-disk H is arranged at one end projecting beyond the frame.
  • This mandrel is arranged in its bearings I so that it can traverse forward and back the length of thepoint of the lathe center, and is geared by pinion K, through which it slides, with the drivin g-wheel L on the counter-shaft M, which has a worm or screw, N, in which the teeth O on the side of the rim of the driving-wheel gear to turn it.
  • the drivin g-wheel is mounted in bearings Q by its shaft R, and has crank-pin S for turning it.
  • On the shaft R is a shifting-screw, T, with righthand threads U, and left -hand threads V, for driving the feed-screw W by a worm on it.
  • This screw T is fitted to slide on the shaft R to shift the threads U and V for
  • the worm T bears at its ends against the shoulders A on the shaft R to be held in gear with the worm ou the feed-screw.
  • the frame is pivoted to the socket-piece D, so that it can be turned to arrange the mandrel parallel with the side of the lathe-point to be dressed.
  • B represents a drill-holding attachment on the mandrel.
  • G is a plate
  • D a screw, comprising a clamp by which the machine is to be clamped on a bench or other support, to be used as a drilling-machine.

Description

1. P. KEALY &1. RIGNEY. Sharpening-Machines.
No. 140,832, PatenmdJulJ/xmws.
AM, moro-L Hamm/c co. ux( osaanwe's PRacEss) UNITED 1 STATEs PATENT EEICE.
JAMES P. KEALY AND JOSEPH RIGNEY, OF BRIDGEPORT, CONNECTICUT.
IMPROVEMENT IN SHARPENlNG-MACHINES.
,Specification forming part of Letters Patent No. 140,832, dated July 15, 1873 application filed March 29, 1873.
To all whom it may concern:
Be it known that we, JAMES P. KEALY and J osEPERIeNEY, of Bridgeport, in the county of Fairfield and State of Connecticut, have invented a new and Improved Machine for Dressing Lathe-Centers, of which the following is a specification:
The invention consists in the improvements of machines for dressing lathe-centers, as hereinafter described and pointed out in the claim.
Figure 1 is a side elevation of our improved machine for dressing lathe-centers with a part of the frame sectioned. Fig. 2 is a plan view.
Similar letters of reference indicate corresponding parts.
A is a small cast-metal frame, which is bolted at B to a support, C, having a socket-piece, D, attached to fasten it on the end of a square bar, E, which is to be fastened in the tool-post of `a lathe, so as to support the frame relatively to the center F of a lathe,as shown in Fig. 2. y G is a mandrel, on which the grinding-disk H is arranged at one end projecting beyond the frame. This mandrel is arranged in its bearings I so that it can traverse forward and back the length of thepoint of the lathe center, and is geared by pinion K, through which it slides, with the drivin g-wheel L on the counter-shaft M, which has a worm or screw, N, in which the teeth O on the side of the rim of the driving-wheel gear to turn it. The drivin g-wheel is mounted in bearings Q by its shaft R, and has crank-pin S for turning it. On the shaft R is a shifting-screw, T, with righthand threads U, and left -hand threads V, for driving the feed-screw W by a worm on it. This screw T is fitted to slide on the shaft R to shift the threads U and V for The worm T bears at its ends against the shoulders A on the shaft R to be held in gear with the worm ou the feed-screw. The frame is pivoted to the socket-piece D, so that it can be turned to arrange the mandrel parallel with the side of the lathe-point to be dressed.
B represents a drill-holding attachment on the mandrel. G is a plate, and D a screw, comprising a clamp by which the machine is to be clamped on a bench or other support, to be used as a drilling-machine.
vHaving thus described our invention, we
claim as new and desire to secure by Letters Patent- The combination of a traversing lathe-center grinder, aframe adapted for being supported in the tool-post of a lathe, and an automatic feed-screw for traversing the grinder,
the grinder and the feed-screw being actuated. independently of the lathe, substantially as specified.
JAMES P. KEALY. JOSEPH RIGNEY. Witnesses:
DAVID SHATTUCK, MICHAEL EBERHARD.
US140832D Improvement in sharpening-machines Expired - Lifetime US140832A (en)

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