US495188A - Car-journal bearing - Google Patents

Description

(No Model.)

2. Sheets-Sheet 1 L. PORTER. GAR JOURNAL BEARING.

No. 495,188. Patented Apr. 11, 1893 2 Sheets-Sheef 2.

Patented Apr. 11, 1893.

mnhm L.PO-RT ER. GAR JOURNAL BEARING.

( No Model.) I

- from friction.

UNITED STATES PATENT OFFICE.

LANSING PORTER, OF AUBURN, NEW YORK.

CAR-JOURNAL BEARING.

SPECIFICATION forming part of Letters Patent N0.495,188, dated April 11, 1893.

A lication filed March 3, 1892. Serial No. 423,625. (No model.)

To and whom it may concermj 7 'Be it known that I, LANSING PORTER, 'of Auburn, in the county of Cayuga and State of New York, have invented lcertain new and useful Improvements in -J ou-rnal-Bearings; and I do hereby declare the following to be .a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

My invention relates to an improvement in journal bearings, the object being to provide bearings for supporting the axles of railroad cars and the shafting of other movable parts of machinery which will theoretically be free With this end in view my invention consists in the parts and combinations of parts as will be hereinafter more fully described and pointed out in the claims.

It is evident that my invent-ion is applicable for'use on shafting or other movable parts of machinery, but for convenience, I have illustrated it in connection with the axle of a railroad car.

In the accompanying drawings, Figure l is a plan view. Fig. 2 is an end view. Fig. 3 is a longitudinal sectional view of my invention, and Fig. 4 is a sectional view on line (r -a: of Fig. 3.

A represents a car wheel and B the axle thereof supported at its ends in bearings to be hereinafter described. As the bearings supporting both ends are alike, a description of one will be sufficient.

On the trucks of railroad cars, pressure and friction in three directions are to be guarded against. First, and the most important is the vertical pressure downward from the superincumbent weight; second, the pressure and friction forward and backward, caused by starting and stopping, by running grades, and by the application of the brakes, and the third is the lateral pressure and friction caused by curves and switches. I have provided devices for reducing to a minimum the friction of the parts in the three directions above referred to and will refer to them in the order in which they are stated above.

The superincumbent weight rests on a horizontal plate 0, rigidly secured in any desired manner to the truck. This plate rests upon able plane upon which *it runs.

a nest of cone-shaped rollers D D, suitably mounted in a circular groove a formedin the top face of the revolving disk E. The groove (1 in which these rollers run is so formed that the upper surfaces of rollers D are in a horizontal plane to engage the horizontal under face of the plate 0. This revolving disk which sustains the weight rests in turn over and in contact with the revolving axle B. This structure supports the Weight arid supplies the axle with an endless horizontal mov- The great pressure between the axle and the disk E would be sufficient to compel continuous revolution of the disk, but I prefer to impart a positive rotation to the disk by means of semi-spherical projections b engaging correspondingly shaped recesses in the axle.

I The parts above described support the superincumbent weight while the parts now to be referred to, take up or absorb to a large extent the backward and forward friction caused by starting stopping, &c. The axle B passes through chamber F in truck frame, the vertical diameter of said chamber or box being slightly greater than its horizontal diameter, which permits the cylindrical rollers D D to pass over the top of the axle without any pressure, or in other words the chamber or box is prevented from hearing any of the incumbent weight, and is not allowed to carry any part of the weight to the part of the axle that is directly underneath it, the said rollers being in contact with the axle only in front and back and take the pressure in those di rections. When two loaded rollers are traveling in the same direction, their adjacent sides move in different directions, that is to say the back face of the forward roller is moving upward, and the front face of the back roller in contact with it is moving downward. This results in friction, wear and impeded movement. In my device the alternate rollers D and D are slightly less in diameter than the rollers D, D in order that they may be entirely relieved from vertical pressure, While the larger rollers D D are the burden bearers and the smaller rollers D and D being pressed between the burden bearers are at liberty to revolve backward while actually traveling forward, thereby theoretically removing all friction in the entire nest of rollby curves and switches.

provide the axle B with a shoulder, or collarl ers. These rollers I) D are supported against endwisedisplacement, but as before stated G, the outersurface of which is in a plane sllghtly outside the journal bearing, so as to rest solidly against and move with the periphcry of the revolving disk E. By this arrangement both faces at the point of contact arein motion in the same direction. The bolt I carrying the disk E is What eventually'receives this lateral or endwise pressure, and is about the only stationary part to cause friction in the entire arrangement and it isevident here:

that the friction at this point canb Peduced to a minimum by the introduction of ball or roller bearings around the bolt I. This bolt passes through plate 0 and is supported at a point below the disk E in the bracket 1.

While I have described my improvement in connection with a car axle I wouldhave it understood that I do not limit its application to such a device, nor do I confine myself to the details of construction herein disclosed,

as it is evident that the device can beapplied with equal success to shafting and other parts of machinery and that the details can be varied without departing from the spirit of my invention.

Having fully described myinvention, what 1: ars Patent, is

1. In a journal bearing for railway trucks, the combination with an axle and a truck frame, of a revolving disk carried by thetruck frame and resting above and in contact with the axle, the said disk having a flat horizontal surface for contact with a cylindrical surface on the axle, substantially asset forth.

with a revolving shaft or like object and a rotating disk adapted to support the weight carried by said shaft, and be moved by contact with said shaft, the said disk having a flat face adapted to move in contact with acylindrical surface on the shaft, of roller bearings surrounding the shaft the said roller bearings supporting said shaft on its front and rear sides only, substantially as set forth.

3. In a journal bearing the combination with j m in ha tworl ke bject and a W tary disk moving in COBtac'twith said shaft and adapted to support the weight carried by said shaft of a box through which the shaft passes, the vertical diameter of the box being greater than its horizontal diameter and rollers in said box, the said rollers being of such size relative to the shaft and horizontal diameter of the box that they hold the shaft against forward or backward movement, substantially as set forth.

4. In a journal .bearing the combination with a revolving shaft or like object having a shoulder or collar thereon, of a movable horizontal disk adapted to support the weight carried by said shaft and be moved by'contact with a cylindrical body or surface onsaid shaft, and anti-friction rollers carried bysaid disk and bearing against a stationary support, the said shoulder or collar on the shaft resting in contact with the periphery of the revolving disk, substantially as set forth.

5; In a journal bearing the combination with a shaft or like object having a shoulder or collar thereon, and a box andanti-friction rollers located within the box and surroundn the sh ft, o a revolv ng disk adap ed to suppor thewe g carried y the shaf the I v 3 friction rollers between said disk and plate, I claim as new, and desire to secure byLetg of an axle one end of which rests against the under side of therevolvin g disk with its shoul- 6! 9r co l r n co act th sa isk.

7. The combination of a stationary part, a movable part mounted on a centrally located axis a series of rollers of equal diameter loosely nested between the movable and stationary par s, a se ies of o le f sma er diamete than the firstmentioned rollers, and alternat- 2. In a journal bearing, the combination.

ing W S d fi t ment o ed r llersand a re volving shaft or like obj ect having direct contact with said movable part, substantially as e or h- In testimony whereof I have signed this specification in the presence of'llWO Subscribing witnesses. 1

LANSING PORTER. Witnesses:

G. O. DaUM onp, LEWIS REDWINE.

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