US730769A - Car-journal bearing. - Google Patents

Description

` PATBNTBD vJUNE 9.,;1903.

J. M. HOPKINS. GAR yJOURNAL BEARING.

n l l I l l l I l 1|. ---Ur 3 J 5 n I/ T u .lnlllll ....lI 1.. L .n n lr -1 r... l INL @Humm Patented June 9, 1903.

ATLENT OFFICE.

JAMES M. HOPKINS, OF CHICAGO, ILLINOIS.

CAR-JOURNALYBEARING.

SPECIFICATION forming part of Letters Patent No. 730,769, dated June 9, 1903. Application ledlil'anuary 19, 1903. Serial No. 139,588. (No model.)

T0 a/ZZ whom, t ntay concern:

Be itknown that I, JAMES M. HOPKINS, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Car-Journal Bearings, of which the following is a specication, and which are illustratedV in the accompanying drawings, forming a part thereof.

This invention relates generally to bearings, and particularly to a novel form of bearing for car-journals.

In order to prevent longitudinal play of the bearing or brass in common use, it has been proposed to provide the same with lugs adapted to engage suitable lugs projecting from the sides of the car-journal box and other lugs on the wedge. These bearings as generally constructed have been made entirely of antifriction metal, suchas brass or other comparatively soft metal, in order to provide a suitable wearing-surface for the car-journal; but owing to the severe strains to which they are subjected, due to the great weight thereon, the sudden change and distribution of pressure caused by the swaying of the car and the end thrusts caused by the side movement of the car in turning curves and from other causes the life of the bearings is extremely brief, as the metal employed is not of such character as to endure the necessary wear and tear.

The present invention has for its object to provide a bearing possessing all of the advantages of the particular-bearing referred to while overcoming the objections incident thereto; and it comprises a bearing of antifriction metal, such as brass, having a back of iron or similar wear-resisting'metal provided with lateral Wedge-engaging lugs 'designed to prevent longitudinal play of the same.

The invention consists of the combination and arrangement of parts hereinafter partieu ularly described, specifically designated in the claim, and illustrated in the accompanying drawings, in which- Figure 1 is aside elevation of a car-journal brass constructed in accordance with my invention and illustrated in connection with a wedge. Fig. 2 is a section on the line a: a: of Fig. 3, a detail of the journal-box being shown in dotted lines; and Fig. 3 is a plan of the bearing.

The bearing herein described may be used with any car journal box of conventional lform, one being indicated in Fig. 2 in order its back 12 are secured together, so as to form practically one element and in such manner as to prevent or avoid play of one upon the other. The desired end maybe attained in the manner illustrated and clearly shown in Fig. 2. As4 lthere shown the back is provided with Yone or more sets or pairs of upwardly-diverging recesses or apertures 13. In making the bearing this back is set up in the mold in such manner that the brass or other metal forming the bearing 11 covers the face ofv the back and enters the recesses or apertures in the latter, thereby securely wedging the two parts together. After removal from the mold the bearing is shaped up and smoothed as necessary.

In order to prevent longitudinal movement of the bearing relatively to the nated 14 and may be of any desired construction, the back is provided with lupstanding lugs 15, adapted to engage suitable lugs 16 on the wedge, and also with lateral lugs 17, which engage lugs 18 on the side walls of the box 10, as seen in Fig. 2. pair of each being at each side of the brass, are spaced such a distance apart that each pair of the wedge and box-lugs 16 and 1S fit between the same, so as to hold .the bearing against material longitudinal movement, and as the bearing-lugs are integral with the back 12, which is of a durable metal, they are well adapted to resist the wear due to the rubbing and thrusts of thewedge and box thereagainst, thereby relieving the softer bearing metal and materially prolonging the life of the The lugs 15 and 17, one

wedge, which is shown in Fig. 1 and desig- IOO ` 2 i n 730,769 f same. If the bearing is made of brass and gral lateral box-engaging lugs and integral the back of iron, this will be a matter of conupstanding wedge-engaging lugs and a bear- 1o siderable consequence, inasmuch as brassis ing-face of brass permanently fixed to the comparatively expensive, Whereas. iron is back.

5 much cheaper. JAMES M.l HOPKINS.

I claim as my invention- Witnesses: As an article of manufacture, a car-journal ARTHUR B. SEIBOLD,

bearing comprising an iron back having inte- LOUIS K. GILLSON.

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