US402858A - Erts r - Google Patents

Description

(No Model.)

F. J. ROBERTS. DUST GUARD FOR UAR AXLE BOXES.

Patented My '7. 1889.

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UNITED STAT-Es PATENT OFFICE.

FABIAN J. ROBERTS, OE DETROIT, MICHIGAN, ASSIGNOR TO THE F. J. ROB- ERTS R. R. DUST GUARD MANUFACTURING COMPANY, OF SAME PLACE.

DUST-GUARD 4FOR SPECIFICATION forming part of Letters Patent No. 402,858, dated May '7, 1889.

Appncation Alea March 10, 1887.

To @ZZ whom, t irl/ay concern.-

Be it known that I, FABIAN J. ROBERTS, of Detroit, in the county of WVayne and State of Michigan, have invented new and useful Improvements in Dust-Guards;` and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this speciication.

This invention relates to certain new and useful improvements in dust-guards for caraxle boxes.

The invention is designed to be an improvement upon the device patented to me in Patent No. 307,682, issued November 4, 1884, for a similar purpose, aswell as upon all devices heretofore known and used.

The invention consists in the peculiar construction of the various parts and their combination, as more fully hereinafter described and claimed.

Figure l is an elevation of my improved device with one side of the inclosing-case removed. Fig. 2 is a perspective View of the ring detached from the case and opened up. Fig. 3 is a vertical central section. Fig. 4 is a similar View with the device in place in a car-axle box.

In the accompanying drawings, which form a part of this speciiication, A represents one of the walls of the inclosing-case, having at each corn er a block or riser, B, so arranged that the other wall of the said case can be secured thereto, therebyforming the ent-ire inclosingcase, within which the operating parts can C is a ring with open ends, as shown at a, cut from leather, a single piece of sole-leather being used for the purpose, in order that there shall be but one thickness necessary.

D is a wire spring having projecting ends or arms 1J, so curved attheir outer ends thatY they may be interlocked, as shown. This wire spring incloses the outer periphery of the leather ring, to which it is secured by means of thin metallic clips c and suitable rivets, d, the open or interrupted portion of both the ring and the spring being coincident.

D is a metallicl cap, which is designed to Serial No. 230,329. (No modell) cover the lower portion. of the leather ring and spring. This cap is rectangular, so far as its ends and one side are concerned, while the other side is cut in a curve to conform to the shape of the central hole, E, through the inclosing-case, which is adapted to surround the axle M of the car. Rivets e secure the cap to the leather ring and form a point of resistance against the expansion of the leather ring or the wire spring in that direction.

F is a metallic cap adapted to inclose the upper part of the inclosing-case and the arms of the spring to prevent the admission of dust at that point, and this cap is provided with a iiange, 71.adapted to rest upon the top of the 65 axle-boxand prevent displacement.

The object of having the leather ring and Wire spring interrupted or open-ended is to allow it to be expanded or contracted at will. The extended arms of the spring, being disen- 7ol gaged, allow the parts to `contract to compel a close fitting around the axle, while the locking together of these arms expands the ring and spring to allow these parts to pass over the head or iiange of the axle. As soon as this 75 is done the arms should be disengaged, when the consequent contraction will compel the necessary close fitting to the axle. The device being inclosed Within the case has room therein to move with any of the vibratory 8o motions of the axle Without disturbing the relative positions of each to the other. The leather ring and the wire spring are so constructed that when contracted, as above described, a nearly perfect circle is formed that will wipe the axle all around its periphery. When the arms of the wire spring are engaged, the shape of the ring is slightly oblong and does not form a true circle.

Importance is attached to the cap D', as it 9o serves three important functions: First, it 1 forms a guide for the wiper; second, it i'llls the case and prevents thedust from getting in, and, third, it takes the wear off of the leather in the Vibrations up and down of the guard, and hence adds materially to the lifev of the wiper.

What I claim asV my invention is l. In a dust-guard for car-axle boxes, the combination of the following elements: an roo openended ring of a single thickness of leather, a Wire spring surrounding,` the periphery of said ring and secured thereto by metallic clips and rivets, and a sheet-metal cap embracing the lower portion of such spring and ring, secured to the latter by rivets, substantiallyzts and for the purposes described.

2. The combination, in a dusi'fguard constructed substantially as described, of the leather ring, surrounding spring, metallic cap 1o secured to the lower portion of the ring, and the inclosing-case, substantially as end for the purposes specified.

FABIAN J. ROBERTS.

Witnesses:

H. S. SPRAGUE, T, E. ROBERTSON.

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