US777574A - Car-truck. - Google Patents

Description

PATENTED DEC. 13, 1904.

J. C. WANDS.

GAR TRUCK.

APPLIUATION FILED JULY 9, 1904.

NO MODEL.

2 SHEETS-SHEET 2.

Ulllllll umnumm Patented December 13, 1904.

UNITED STATES PATENT OFFICE.

JOHN O. WANDS, OF ST.v LOUIS, MlSSOURl.

CAR-TRUCK.

SPECIFICATION forming part of Letters Patent N o. 777,574, dated December 13, 1904.

Application filed July 9, 1904:. Serial No. 215,910. (No model.)

To all whom, it may concern.-

Be it known that l, JOHN O. WANns, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Oar-Trucks, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being` had to the accompanying drawings, forming part of this specilication, 'in whichy Figure 1 is a view of a side frame, partly in elevation and partly in section, showing my invention. Fig. 2 is a top plan view of the body-bolster and rocker-bearings removed.

Fig. 3 is a top plan view of the body-bolster, showing the rocker-bearings applied; and Fig. 4 is a sectional view through the truck-frame, the body-bolster, and the antifrictio'n devices, the rocker-bearings and body-bolster being illustrated in elevation, a part of the bodybolster being broken away to show the seat for the rocker-bearings.

This invention relates to a new and useful improvement in car-trucks, one object being to provide an antifriction support whereby the car will be carried at its corners instead of at the centers of the bolsters, as has heretofore been commonly practiced.

A further object is to provide means to take up the sidemotion of the car, so as to relieve the flanges of the wheels from lateral strains, to which they would otherwise be subjected.

Further objects and advantages, as well as the novel details of construction of this invention,will be specifically described hereinafter, itbeingunderstood that changes in form, proportion, and minor details of construction may be resorted to without departing from the spirit or saerilieing any of the advantages thereof.

In the drawings illustrating` the preferred embodiment of my invention a common type of side fraine'is shown, the same comprising the top arch-bar 1, the bottom arch-bar 2, and the tie-bar 3.

The reference-numeral 4 designates an end casting, which is recessed in its bottom and top walls to receive the top and bottom arch-bars,

respectively. This end easing is preferably provided with the perforate lugs 5, forming brake-hangers. The casting f1 is provided with spring-seats on its bottom connectingwall, upon which are arranged the supporting-springs 6. This casting is substantially U-shaped, and between its upper members is secured a transom 7, preferably in the form of an I-beam, whose flanges are received in lugs forming seats 8, projecting from the outer faces of tlie follower-plate 9. The outwardlyprojecting flanges of the I-beam and transom are passed beneath the arch-bar 1, and the web of the transom rests upon the followerplate 9, having downwardly projecting flanges, which inclose a spring-seat block 11,0. Resting upon the top of the web of the I-bcam 7 and fastened at or adjacent to the respective ends thereof is a base-plate 11, moving laterally across which is a divided antifriction baseframe 12. The antifriction-frame is intended to move inapproximately an are struck from the center of the car, so that the antifriction devices 13 will be moved in approximately this arc. The antifriction devices 13 are illustrated as comprising two sets of alternatelyarranged. roller-bearings, although it is obvious that any other rotatable bearings may be employed, if desired.

The frame 12 carriesa rocker-bearing plate 14, having seats for the reception of the rocker-bearings 15. These rocker-bearings 15 are provided with curved or rocker faces at their respective ends, so that side motion across the ear will cause the rocker-bearings to rock without any undue jar being communicated to the car-body. The rocker-bearings are in the present instance illustrated as being connected in pairs by the links 16, so that they will rock in unison. The upper rocker-faces of the respective links rest in the recesses 17, formed by the abutments 18 of the body-bolster or transom 19. The antifriction devices in the frame 12 are free to move laterally across the web of the I-beam 7, said antifriction devices being arrested at their extreme movement in either direction by the alternate stop-lugs 20 and 21, rit id with the -beam, which are adapted to c( n- 'after lateral displacement.

tact with the alternately-arranged stop-lugs 22 and 23 on the rocker-bearing plate 12.

By reference to Fig. i it will be noticed that the body-bolster rests low over the truck and that the rocker-bearings and roller-bearings are arranged in a manner best suited to their efiicient cooperation, inasmuch as the roller-bearings are separated from the rockerbearings simply by a plate. This combination is provided for the purpose of most eii'iciently resisting the strains due to the side and end thrusts of the transoms, so as JIto avoid undue jarring of the car parts. The body-bolster or transom may be provided with seats for the longitudinal sills of the cars and in addition carries a swivel-pin 24 at its center, which is designed to cooperate with a resilient means employed for centering the car-body with respect to the truck Neither the bolster 11 nor the body-bolster is provided with center-bearings; but the swivel-pin 24k is used in place of the king-bolt, said swivel-pin passing through the laterally-elongated opening 25 in the truck-bolster, the web of which at this point is reinforced by a anged strengthening-casting 26.

27 indicates a spring-bar, which receives the lower end of the swivel-pin 24. This springbar is provided with abutments 28 and 29, which abutments cooperate with spring-followers 3() and 31, arranged in a springdiousing 32 and designed normally to rest against the end walls of said spring-housing, which form stationary abutments or supports therefor.

33 indicates the centering-springs which are A compressed between the followers 30 and 3l.

The spring-housing 32 referred to is riveted or otherwise supported to the under side of the web of the transom 7.

In operation it will be seen that for ordinary service the supporting-springs 6 cushion the car-body so that said body is yieldably supported at its four corners upon the truck, the side bearings transmitting the load at each corner of the car to the columns, thence through the antifriction devices of the springs to the side frames of the truck. The transom 7 is yieldingly supported upon its seat, but serves as a rigid connecting memberbetween the side frames. In ordinary service when the trucks take a curve the swivel-pin 24 serves as a pivot or axis of movement, the antifriction side bearings permitting' the trucks to swing without binding or cramping the flanges of the wheels against the rails. However, should the momentum be such as to cause the body of the car to sway laterally the swivel bolt or pin 24 will carry with it the spring-bar 27 and compress each spring 33, which springs will absorb and resist said swaying motion and prevent the shock being communicated to the side frames of the trucks.

The lateral movement of the car-body will cause the abutments 22 to bodily move the bolsters 19 with the body over the antifriction devices without subjecting the roller or rocker bearings to transverse or longitudinal strain. The springs 33 are duplicated on each side of the swivel-pin, and thus the lateral motion of the swivel-pin meets opposition from both springs, which are put under joint compression in the following manner: Referring to Figs. 3 and 4:,it will be seen that with the spring illustrated movement of the spring-bar 27 to the left will' cause the outer abutment 28 to leave the spring-follower 30, the inner abutment 29 forcing the follower 31 to compress the spring 33. The action of Vthe companion spring will be the opposite-to wit, the outer abutment 28 will pick up its cooperating spring-follower 3() and compress its spring against the spring-follower 31.

From the foregoing it will be apparent that the car-body is efficiently supported at its corners and that the rocker-bearings will permit a slight oscillatory movement of the carbody, and inasmuch as the coupled rockerbearings work in unison they will immediately assume their normal positions as soon as the car regains its equilibrium.

Having thus described my invention, what I claim as new, and desire to secure by Letters.

1. In a side bearing for railway-cars, the combination of a base-plate designed to be arranged on a bolster, a carrier arranged above said base-plate and designed to travel in a direction across the bolster, antifriction devices interposed between said carrier and baseplate, and rocking supports for the car-body mounted upon said carrier, said rocking supports being movable in a direction at an angle to the movement of the carrier; substantially as described.

2. In a side bearing for railway-cars, the combination with a bolster, of a carrier movable transversely the same, antifriction devices interposed between the carrier and the bolster, rocking supports mounted on the carrier and movable at an angle to the direction of travel of said carrier, and a body-bolster cooperating with said rocking supports; substantially as described.

IOO

IIO

3. In a side bearing for railway-cars, the n frame above the plate, rotatable antifrietion devices carried by the frame and having' movements transversely across said plate, a plate resting on the antifriction devices and having' recesses, and rocker devices connected together and resting in the recesses of the plate; substantially as described.

5. The combination with a truck-bolster, of base-plates carried by the truck-bolster near the respective ends,antiiriction devices on said plate and having movements in a transverse direction,a plate supported upon the antil'riction devices, a body-bolster, and rocking' devices having' curved end faces and interposed between the last-named plate and the body-bolster whereby the body-bolster is supported by the ends of the truck-bolster; substantially as described.

6. The combination with a truck -bo-lster having an elongated slot, of a body-bolster above the truck-bolster and having a depending pin projecting through the elongated slot, a plate having' movement transversely of the truck-bolster, and rocking4 devices supported on said plate,and in turn supporting' the bodybolster above the truck-bolster near the ends i thereof; substantially as described.

movable across the path of movement of said plate, and link connections for the rocking devices; substantially as described.

10. In a bearing for railway-ears, the combination of a base-plate having stop-lugs, rotatable antifriction devices on said plate, a plate above the antiriction devices and having lugs adapted to abut against the lugs on the lirst-named plate, and rocking devices supported upon said plate and having movement across the path of movement of the latter plate; substantially as described.

1l. A truck-'frame ineliidingI top and bottom arch-bars, spring-seats carried by the bottom arch-bar, a lianged follower-plate resting' over the top of the springs and having vertical movement with respect to the truck-trame, an I-beam truck-bolster having' its 'flanges and web portion snugly iitting the follower-plate, a base-plate resting; on the web oi' the I-beain, a plate supported by and having' transverse movement on the I-beam, and rocking' devices supported by said plate and having movements across the path of movement of said plate; substantially as described.

l2. The combination with a carrier, of antifriction supporting' elements therefor, rendering1 said carrier capable of transverse movement with respect to the tr uch-bolster, and devices mounted on said carrier for supporting the car-body, said last-mentioned devices being movable in a direction at an angle to the movement ot' the carrier; substantially as described.

In testimony whereof hereunto ailix my signature, in the presence of two witnesses, this 6th day oi' July, 1904:.

J OHN C. VANDS.

Witnesses:

B. F. FUNK, Gnomes BAKEWELL.

Images