US937752A - Lateral-motion roller-bearing device for car-trucks. - Google Patents

Description

v, J. c. BARBER. 4 LATERAL MOTZDE ROLLER BEARING DEVICE F011 CAR TRUCKS.

APPLIUATION FILED APB.16,1'908.

I Patented Oct. 26, 1909.

2 SHEETS-SHEET 1.

I J. o. BARBER. LATERAL MOTION ROLLER BEARING DEVICE FOR GAR TRUCKS.

APPLICATION FILED APR. 16,1908.

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JOHN C. BARBER, OF CHICAGO, ILLINOIS.

LATERAL-MOTION ROLLER-BEARING DEVICE FOR. CAR-TRUCKS.

Specification of Letters Patent; it

"'Applie ation filed April 16, 1908. Serial No. 427,461.

To all whom it may covwern; Be it known that 1, JOHN C. BARBER, a citizen of the United States, residing at Chicago, in the county of Cool: and State of Illinois, have invented certain new and useful Improvements in LateraleMotion Roller- Bearing Devices for Car-Trucks; and I do hereby declare clear, and exact description of the invention, such as will enable others skilled in the art towhich it appertains to make and use the same. e

- Especially my invention relates to car tracks of the general type disclosed in my prior patent #875,566, issued of date Decem ber 31, 1907, entitled car truck, and relates to the improvement of the roller bearing devices for permitting lateral movements of the car body in respect to the car truck. More particularly stated, in the type of lateral motion car truckabove indicated, the truck bolster is mounted for endwise movement transversely of the car truck and is supported by rollers. that are interposed between the hearings on the ends of said truck bolster and on an underlying combined spring cap and roller base; and the present invention. relates particularly to the improvement of the roller engagino bearings that overlie and underlie the bolster supportin rollers.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views.

Referring to these drawings, Figure 1 is a view chiefly in transverse vertical section taken through one of the truck side frames and associated parts and illustrating my improved lateral motion bearing device applied in working position. Fig. .3 is a plan view showing, in detail, one of the combined spring caps and roller bases removed from working position, some parts being broken away. Fig. 3 is an edge elevation of the combined spring cap and roller base shown in detail in Fig. Fig. 4: is a bottom plan view of the roller cap; and Fig. 5 is a section taken on the line 02: m of Fig. 4.

Inthe drawings the numeral 1 indicates the bottom tie liar, the numeral 2 the bottom arch bar, the numeral 3 the top arch bar, and the numeral i the bolster columns, all rigidly connected by nutted column bolts and constituting one of the side frames of the truck. The ogposite side frames only one of which is shown in thedrawings) are connected by the following to be a full,

cross ties or transoms 6, the opposite ends of which are riveted or otherwise rigidly secured to the opposite umns. A base plate 7 for the bolster springs 8 is riveted or otherwise rigidly secured'to.

the horizontal flanges of the cross ti'e bars 6 and is located between thecooperating pair ofbolster columns 4.

A plate 8, that constitutes spring cap roller base ends of the four springs 8, andthis plate is provided with a down-turned flange that embraces the upper ends of-the said springs and prevents lateral movement thereof. On its upper face the plate a combined rollers 11 are placed. Another roller bearing plate 12, designated as a roller cap, is rigidly secured to the adjacent end of the truck bolster 13 and is provided with roller seats 14 that directly engage-and rest upon the rollers 11. The seats 10 of the plate 9 are provided with end flanges 10 and the seats Plot the rollercap 12 are provided with corresponding end flanges 14*, which end flanges hold the rollers 11 against endwise movements. At its ends the plate 9, or so-called combined spring cap and roller base, is provided with projecting laterally spaced guide lugs i) that embrace the bolster columns L and guide the said plate 9 for true vertical movements on said columns under the yielding action of the springs.

The roller seats 10 and 14 are concave in a direction transversely of the truck and this concavity is preferably afforded by fiat bearing surfaces that diverge from central longitudinal lines of the said seats. The end flanges 10 ot' the lower seats 10 are provided with inwardly extended beveled stop lugs or surfaces 10"; and the end flanges 14 are provided with inwardly projected beveled stop lugs 14:". The bearing surfaces of the lowe seals '10 are of considerably less width tnat the distance between the pairs or stop .ugs 10", while the bearing surfaces of the upper seats 14'. are considerably wider than the distance between the upper pairs of stop lugs 14*. With this arrangement, under extreme lateral movements of the car body in. respect to the truck, or vice versa, the cndsonly of the rollers will be brought into engagement with the beveled stop lugs 10" and 14" of the bearing plates 10 and 14, respectively; and, by this action, the rollers which will frequently work into pairs of bolster col- Patented Oct. 26, 1909.

is seated on the upper 9 is formed with parallel roller seats 10 upon which bearing oblique positions, indicated by dotted lines motion devices than the one above specific .111 Fig. 2, will be thrown into parallel a'lineally described.

ment with 'each other and with the longitu- What I claim is:

dinal axes of the seats 10 and 14/ Further- In a car truck, an anti-friction lateral morefthe intermediate portions of the. seats motion device comprising upper and lower 10 are extended only as far as necessary to bearing plates or. members and interposed afiordpomplete supports for the rollers when cylindrical rollers, said bearing plates havhey are in extreme positions, and are then ing concave rollerseats with end flanges and cut awa sothat there is the best possible laterally spaced stop shoulders that'are en- 7 chance or the escape of all dirt from the gageable with the end portions of said rollers bearing surfaces. The above described arto aline the same under extreme movements rangement of the rollerseats' and laterally ofsaid bearm vplates in respect to each spaced stop lugs at the extremity thereof other, the lowei' of said bearing plates being is, therefore, of great importancein the praccut down approximately tothe bases of the eartop shoulders of the said lower bearing plate to permit ready escape of dirt from the beartical operation of these lateral motion ingsa I So far as the present invention is conmg, substantially as described. cerned it is immaterial whether or not the y In testimony whereof I affix my signature anti-friction side bearings shown in my said in preseneeJof two witnesses."

prior patent be employed. Furthermore, I JOHN C. BARBER. the improved formof roller bearing seats Witnesses: above escribed may be employed in various L. W. BARBER, other arrangements of anti-friction lateral W. WEBB.

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