US769337A - Journal-bearing. - Google Patents

Description

I PATENTED SEPT. 6, 1904. I Q G.H.GLAMERI .Y

JOURNAL BEARING. APPLICATION FILED MAR/10, 190a.

I N0 MODEL.

to resist end thrust and equivalent strains.

UNITED STATES I Patented September 6, 1904.

PATENT OFFICE. 1

JOURNAL-BEARING.

S1 13 CIFIGA'JJION forming part of Letters Patent No. 769,337, dated September 6, 1904.

Application filed March 10, 1903.

To all whom it may concern;

Be it known that I, GUILLIAM H. CLA E a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, haveinvented acertain new and useful Railway Axle-Bearing, of which the following is a specification.

The object of the present invention is to provide a very efficient railway axle-bearing at an extremely low cost.

To this and other ends hereinafter set forth the invention, stated in general terms, comprises a railway axle-bearing consisting of the combination with a stiff metal back of a homogeneous self-fitting filling possessed of a high melting-point and such as it is impossible to melt out by temperature induced by friction of service and the bearing as a whole possessed of sufficient mechanical strength for resisting thrusts and the like; and the invention further comprises the improvements to be presently described and-finally claimed.

The nature, characteristic features, and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, and in which Figure 1 is a perspective view of the filling. Fig. 2 is a similar view of the back, and Fig. 31isda sectional view showing the parts assemb e In the drawings the filling oconsists 'of' homogeneous metal possessed of a high meltingpoint and of a quality which may be designated self-fitting in the sense that it is soft enough to adjust itself to the journal. At the same time its high melting-point removes all possible danger of its being' fused or otherwise forced out of position, Such a metal is not possessed of sufiicient mechanical strength a is the stiff back with which the filling c is combined and which imparts to the bearing the necessary resistance to end thrust and other strains and which need not be of antifriction metal and may consist of a comparatively inexpensive metal, as iron.

The railway-bearing as a whole is comparatively light and inexpensive and consists of Serial No. 147.059. (No model.)

fitting, and of highmelting-point, but too weak to withstand the strains and thrusts to which a railway-bearing is subjected, and the other of which imparts the necessary strength for opposing the strains and thrusts.

As shown, the filling is formed with overhanging portions b, which extend over the ends of the back and serve to take up the end or collar wear, and the complemental lugs e and recesses b constitute means for securing the parts to place; but these are details of construction which are not of the essence of the invention. As an example of metal from which to make the filling reference ismade to an alloy consisting, essentially, of copper and lead in the proportions of from thirty to seventy per cent. of copper and thirty to seventy per cent. of lead, although it may contain in addition impurities or a small quantity of tin or other elements which may be added to improve its homogeneity or casting properties. Such an alloy possesses a high melting-pointabout 1500 Fahrenhei t-and it is impossible to melt it out of a railway-bearing at a temperature induced by friction. Furthermore, it is so soft that it is self adjusting or fitting and may be put into service without fear of heating. At the same time it exhibits a greatly-diminished rate of Wear. Iron or steel is an example of the material suitable for the stiff back, and it is possessed of suflicient strength for resisting the thrusts and strains to which the bearing is subjected.

' It will be obvious to those skilled in the art to which my-invention appertains that modifications may be made in detail without departing from the spirit thereof. Hence I do not limit myself to the precise construction and arrangement of parts hereinabove set forth, and illustrated in the accompanying drawings; but,

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A railway axle-bearing consisting of the combination with a stiff metal back of a homogeneous self-fitting filling possessed of ahigh melting-pointand such as it' is impossible to melt out by temperature induced by friction and the bearing as a whole having sufficient mechanical strength to resist thrusts and the like, substantially as described.

2. A railway axle-bearing consisting of the combination with a stiff metal back of a homogeneous self-fitting filling having a meltingpoint above 800 and such as it is impossible to melt out by temperature induced by friction and the bearing as a whole possessed of suflicient mechanical strength to resist thrusts, substantially as described.

3. A railway axle-bearing consisting of the combination with a stifi? metal back of a selffitting filling consisting of an alloy composed essentially of copper and lead in proportions of from thirty to seventy per cent. copper and thirty to seventy percent. lead, substantially as described.

4. A railway axle-bearing consisting of the combination with a simple casting consisting of a stiff metal back of a filling consisting of an alloy composed of essentially copper and lead in proportions of thirty to S( \"(/1'll1y])01 cent. copper and thirty to seventy per cent. lead, substantially as described.

In testimony whereof I. have hereunto signed my name in the presence of two subscribing witnesses.

GUILLIAM 11. OT A M ER.

\Vitnesses:

K. M. GrlLLIGAN, W. J. JACKSON.

Images