US270916A

US270916A - Device for truing axles

Info

Publication number: US270916A
Authority: US
Publication date: 1883-01-23
Anticipated expiration: 1900-01-23

Description

2 Sheets-Sheet 1.

(No Model.)

J. F. THOMAS & W. BAKER.

DEVICE FOR TRUING AXLES. v

Patented Jan.28, 1883.

m PETERS. FhuloLafi-cgr-lpncr. Washington. D1;

(No Model.) 2 Sheets-Sheet 2. J. P. THOMAS & W. BAKER.

, DEVIOB FOR TRUING AXLES. No. 270,916. Patented Jan.23,1888.

UNITED STATES PATENT ()FFICE.

JOHN F. THoMAs AND WALTERBAKER, or ILION, NEW YoRK.

DEVICE FOR TRUING AXLES.

SPECIFICATION forming part of Letters Patent No. 270,916, dated January 23, 1883; Application filed July 5, 1882. (No model.) I

- ming and truing axles which have become Lil worn; and it consists in a series of radially-adj ustable cutters mounted in a stock provided with a cam-plate to adjust the cutters and a centering device to bring the cutters to and retain them in proper position, as hereinafter fully set forth.

In the accompanying drawings, Figure 1 represents a perspective view of our improved device; Fig. 2, a face view of the same with the cam-plate removed and turned over to show the cams or ribs, and Fig. 3 a longitudinal vertical section of the deviceapplied to an axle.

Axles by continued use become worn into an elliptical form in cross-section, causing an undesirable play and rattling of the wheel and a rounding off of the shoulder or collar of the axle, against which the wheel abuts. It is to restore such worn axles to their original form that this tool is designed, though it may also be used for truing or reducing new axles. 4

The implement is designed to be manipulated by hand without the aid of lathes or other machinery, and is accordingly construeted as shown in the drawings, in which A represents a tubular stock or body enlarged at one end and slotted to receive a series of radially-moving cutters, B, which are held in their slots by a cap or face-plate, O, and are moved to or from the center simultaneously by a cam-plate, D, the cams or ribs a of which enter notches or recesses b in the back or unring or collar, E, passed upon the neck of thestock and secured in place by screws (1. This arrangement permits the cam-plate D to turn I freely upon the stock without permitting it to leave its seat therein.

The cutters are arranged to slide freely toward and from the center of the stock, with whichthey rotate, but, being seatedin grooves or ways therein, can have no other motion independently of the stock when itis desired to adjust the cutters.

The eccentric ribs or cams a of the cam-plate D being seated in the recesses or notches b of the cutters, it follows that, if the stock be held fast and the cam-plate rotated, the cutters will be simultaneously and equally moved to or from the center, according to the direction of rotation, and thus adapted to act upon a larger or smaller axle, as required.

An arm, 0, is formed upon the cam-plate, by which to rotate it, and a slotted flange or wing, f, is also formed thereon, and arranged to project past the side of the stock to receive a clamping-bolt, F, one end of which is seated in a.lug or ear formed upon the stock. When the cam-plate is moved to theproper point the thumb-button G is turned upon the bolt F until the plate is firmly clamped, and the cutters thereby held against end movement. The stock is form edwith socket-pieces G to receive hand bars or levers, by which to rotate it.

For the purpose of centering or supporting the tool or implement upon an axle, we provide a centering device, H, consisting of three jaws or blocks, h, slotted and carried by a ring. 17, upon which they are radially arranged and free to move in or out. The jaws or blocks h are tapered off at both ends, so that one end may readily enter the end of the neck of the stock, and that the other end may similarly enter a groove or channel, j, formed in the inner face of a nut, I, applied to-the outer end of the axle. By screwing the nut upon the axle more or less the jaws or blocks h will be pressed into the neck of the stock A until an equal and firm bearing is given to each, their uniform taper causing them to be centered and in turn to center the axle, as indicated in Fig. 3.

The cutters are formed to out both on their ends and inside faces, so that they are adapted not only to trim and true the'axle or spindle proper, but also to square the collar at the inner end of the spindle.

We are aware that tools have before been made with radiallyadjustable cutters, and this we do not broadly claim.

\Vhile we have spoken of the cutters as being radially arranged and adjustable in radial lines, it should be stated that, strictly speaking, they are not arranged in true radial position, but are placed on lines tangential to a small central circle, as seen in Fig. 2, in order to throw the cutting-edges inward in advance of the inner faces of the cutters. The cutting points or edges, however, move radially, or practically so.

We are aware that a cam-plate has been employed in connection with notched cutters mounted in slots or ways in a stock for the purpose of moving the cutters in or out; but by our construction we are enabled to secure the cam-plate in position and to adjust the cutters and cause them to straddle or engage with the cams before applying the face or covering plate--a feature of considerable importance, because it avoids the difficulties commonly experienced in assembling implements of this character, and obviates the necessity of forming openings in said plate through which-to observe the position of the cutters, and through which dirt and dust have been found to enter, to the injury of the implement.

Having thus described our invention, what We claim is- 1. In combination with an implement, substantially such as described, for truing axles. a centering device adapted to enter the end of the stock and to center the implement upon the axle.

2. In combination with stock A, a centering device tapered at its ends, and a channeled nut adapted to screw upon the end of the axle and to fit over the end of the centering device, substantially as shown and described.

3. In combination with stock A and hat I, the centering device consisting of the jaws h, mounted loosely upon ring i, as and for the purpose set forth.

JOHN F. THOMAS. WVALTER BAKER.

Witnesses:

P. D. Oseoon, RICHARD W. JoNEs.