US602913A - Buffing-wheel - Google Patents

Description

(No Model.)

T. A. NORRIS. BUFFING WHEEL.

No. 602,913. Patented Apr. 26, 1 898.

UNITED STATES ATENT FFTGE.

THOMAS A. NORRIS, OF BROOKTON, MASSACHUSETTS.

BUFFlNG-WHEEL.

SPECIFICATION forming part of Letters Patent No. 602,913, dated April 26, 1898.

Application filed September 28,1897. Serial No. 653,306. (No model.)

To (ZZZ whom it may concern.-

Be it known that I, THOMAS A. Nonnrs, of Brockton, in the county of Plymouth and State of Massachusetts, have invented an Improved Buffing-WVheel, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure 1 is a central longitudinal section of my improved buffer-wheel. Fig. 2 is a perspective view.

My invention consists in the details of construction and the novel arrangement of parts hereinafter described, and more particularly pointed out in the claim.

In the drawings, A is a shaft which is arranged in any suitable frame to receive rapid rotary motion. The end of this shaftis smaller in diameter than the middle portion thereof, thus forming a shoulder a, which serves as a stop, and this small portion is screw-threaded.

B is a cup which is centrally bored to receive the small portion of shaft A and to move freely along this small screw-threaded portion without engaging the screw-threads.

D is a sleeve screw-threaded interiorly to screw upon the screw-threaded portion of shaft A and having at one end a disk d. Mounted upon the sleeve D is a conical cushion E. The length of the screw-threaded portion of shaft A is somewhat less than the bore of sleeve D, so that the outer end of the bore of sleeve D is not occupied by shaft A when the parts are in their proper relations, and I am thus enabled to secure the washer F in place by means of screw G, which engages the portion of the bore of sleeve D not occupied by shaft A.

ion is substituted for the cushioned wheel,

and that cushion is secured to the shaft by clamps which grip the cushion and squeeze it longitudinally. The cushion,which is shown in the drawings as conical in form, that shape being especially adapted to abrade the breast of the heel and the adjacent parts of the shank of a shoe, is placed upon the sleeve, one end abutting against the disk cl and the other end being pressed by the washer F as the washer is forced to place by the screw G. The cushion being securely clamped upon the sleeve, the sleeve is screwed upon the shaft until it is Within a short distance of the cup, when the abrading material H is adjusted. The

cup is then drawn forward, covering the small end of the conical cushion and holding the abrading material. The shaft is then re volved and the sleeve is moved in until the cup brings up against the shoulder on shaft A, or the sleeve and cup are turned together until the cup brings up against the stop. An obvious advantage of this construction is that the cushion may be removed when it becomes Worn and a new cushion substituted by the operator with a minimum of trouble and loss of time; It will also be obvious that by properly arranging the screw-threads upon which the sleeve screws, in view of the way in which the wheel is intended to be revolved, the greater the pressure upon the periphery of the cushion the more tightly will the disk cl be screwed up against the cup B, and the cup B in consequence pressed against the shoulder a. 7

What I claim is A buffing-wheel made up of a shaft screwthreaded at one end; a cup loosely mount-ed upon the screw-threaded portion of that shaft; a stop on that shaft against which the cup abuts; asleeve,with an internal screw-thread engaging the screw-threaded portion of the shaft; disks at each end of the sleeve; means to move one disk toward the other; a cushion clamped between the disks, and a band of sandpaper or the like upon the face of the conical cushion and clamped between the cup and the cushion, all substantially as described.

Jonn R. Snow, 0. R. MITcHELL.

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