US1077026A - Car-truck. - Google Patents

Description

W. S. ADAMS.

GAR TRUCK.

dMPLIGATION FILED AUG.16, 1912.

Patented 0@t.28,1t913.

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W.. s. ADAMS.

GAR TRUCK.

APPLICATION FILED AUG. 16, 1912.

Patented 0@t.28,1913.

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W. S. ADAMS.

GAR TRUCK.

APPLICATION FILED AUG. 16, 1912.

Patented 0013.28, 1913.

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UNFFE STTS FATF@ @FFACE WALTER s. ADAMS, or PHILADELPHIA, PnNNsr'LvANIA, AssIeN'oR To THE a. s. DRILL COMPANY, OP PHILADELPHIA, PENNSYLVANIA, A CORPORATION or PENNSYLVANIA.

GAR-TRUCK.

Specification of Letters Patent.

Pawnteaot. 2s, isis.

Application filed August 16, 1912. Serial No. 715,318.

To all whom' it may concern:

Be it known that l, FVALTNR S. ADAMS, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvanimand whose post-oflice address is care ol The J. G. VBrill Co., Sixty-second street and Voodland avenue, in said city, have invented certain new and useful lmlpiovements in Car-Trucks, of which the following is a specication.

My invention has relation to car trucks,

f and the speciic object-of my invention is to vimprove the support of the truck-frame or car body on the axleboxes or axle.

The object of my present invention is to render the support of the truck-:trame on the running gear oraxle boxes, as the case may be, more stable vlongitudinally and transversely, and more flexible than usual, and to relieve the said parts from strain due rll`he improvements allow of a swinging movement transversely of the truck between, the truck frame and axles etc., so as to cushion the blows imposed on the wheels and boxes on striking curves etc., and this is effected by providing for a lateral and relative movement between the frame and axle boxes, and the absorption of that movement by links so arranged that their arc of oscillation is restrained by or through the superimposed car weight. These, and other, results are secured by the construction herein shown and described, which embodies one form of my present invention.

ln the drawing forming part of this specilication, Figure 1 is a side elevation of a portion of a car truck embodying my improvements. Fig. 2 is a plan view of Fig. 1. Fig. 3 is an end elevation of Figs. 1 and 2. Fig. 4 is a sectional elevation on the line a-c of Fig. 2, looking in the direction of the arrows. Fig. 5 is an enlarged plan view of the axle box. Fig. 6 is a front elevation of Fig. 5, parts being broken away shown in section to more clearly illustrate the con- Fig. 7 is a side elevation of the axle box. Fig. Slis a plan view of the stirrup seat. Fig. 9 is a sectional elevation of the same, taken on the line b-b of Fig. 8, looking` in the direction of the arrows. Figs. 10 and 11 are respectively a front elevation of a modified form of stirrup link support and a section on the line c-c of Fig. 10,

looking in the direction of the arrows, and

Figs. 12 and 13 are respectively front and` 'may be embodied in trucks otherwise constructed, but they are especially designed for application and use to the four-wheeled nonpivotal type of truck illustrated. I therefore will describe them in connection with a structure generally of that character; deeming that it is only necessary here to show and describe that portion which is immediately adjacent the axle boxes. In this embodiment, l indicates an axle, 2 the car wheels, 3 the top chord, l the lower chord, 5 thev-spring-posts extending between and secured to the lower and upper chords, which spring posts pass loosely through side-bars 6 having axle-box yokes or pedestals 7 the arms TfL of which surround the axle boxes 8, which yokes or pedestals lie between front and rear axle-box ears or projections 9 and 10, the yoke being capable of free lateral movement between the said ears, as shown in Fig. 2. The axle boxes may be con'- structed as shown or b e of any approved design. The side bars G have -extensions 11 and seats 12. The extensions may be connected transversely, if desired, `to unite the side frames into a unitary structure, called the axle-box or stationary frame. A semielliptic or leaf spring 18 (part of which is shown in Fig. 1) may be secured upon the seats 12, their seats engaging guides 14 secured to the upper chord 3 as shown in said ligure. 1t is intended that each of the devices to beV described, the springs 13 etc., are duplicated at each of the axle-boxes.

Under the present improvements, the axlebox springs 15 are supported upon swinging connections or stirrups, which are in turn supported by the axle boxes, the construction being such as to provide eilicient spring support oi the axle box fra-me, to relieve it of the ar following its usual Jforcible contact with the axle boxes, and yat the same time provide means whereby the movable portion of the truck frame, or the car body, or both, may have a movement generally longitudinally of the axes of the axle, without disturbing the spring support of the axle box frame upon the running gear. By this arrangement, the transverse impulses of the car body on the one hand, due to its operation, or those ofthe truck, due to its operation, which impulses very often work in opposition to each other, are cushioned and modified, so that the unnecessary jars between the pedestals and axle boxes and the unnecessary strains between the spring posts and the axle box trame are avoided and the general operation of the truck under the influence of motor propulsion or braking, are considerably improved.

rl`he axle boxes 8 are provided with the ears 9 and 10, preferably cast integrally with the axle boxes, the outward projection of the front ears being greater than that of the inner ears, so that the stirrup of swinging connection hereinafter referred to will he at an angle to the longitudinal axis of the axle and converge outwardly therefrom in both directions. The ends of the ears are each provided with heini-spherical seats i6, 1T and enlarged apertures 18, 19.

ndicated generally by the numeral 20 are the stirrup seats, comprising a casting having a Central recess or depression 21 'forming a spring-seat, an opening 22 through the base 23, a projection 24 on the Under side and at the end of the cast-ing in which is t'ormed a recess 25, and a coned aperture 2o' in the end, as shown in Fig. Q, these stirrup seats are disposed at an angle io the longitudinal axis ot the axle and conerge toward the same.

it 2T, 28 are the stirrup links, each proided at its upper end with a halt-ball projectirn 2), 30, the latter being seated respecly in the seats 16, 1?, the links passing r ugh the apertures 18 and 19, in t-he ends of the ears 10 and 9 respectively, and through the coned apertures 2G in the ends of the stirrup seats, which ends are provided with nuts 31, 32 and washers 33, 34, which washers lie within the recesses 25 and engage the tace of the stirrup seat. rlhe sides otl the recess 25 are preferably extended out at an angle, as shown at 36, and the face 35 being slightly curved upwardly as at 87, in order to provide for a slight oscillatory movement or" the edges of the nuts 31, 32 or washers 83, 34 on the seats 35, 36. rlfhe stirrup seats are by this construction capable of swinging bodily without disturbing the spring support of the axle box iframe, the swing being limited and restrained by the lifting action of the ends of the stirrup links.

lnstead of using the universal connection shown in Fig. 4, and other views, for the support of the stirrup links, the modified torni shown in Figs. 10 and 11 may be employed, in which the axle box ear 38 is provided with apertured lugs 39 which carry bolts 40 pivotally supporting stirrup links 41, which pass through the two- part aperture 42, 43 in the ends of the axle box ears.

The construction shown in Figs. 10 and 11 is intended to be otherwise constructed as in Fig. 1, etc., and allows of the swinging of the stirrups only in one general direction; while that shown in the other iigures allows of a substantially universal swing. As the former construction, however, will measurably secure some of the advantageous results flowing from my improvements, l deem it necessary to illustrate this modii'ied torni. rEhe spring posts 5 pass through widened apertures 44 formed in the enlargements 45 in the side frames and through the aperture 22 in the base 23 ot the stirrup seat 20. By reference to Fig. 4, it will be seen that the car springs and axle`box springs are located in the same general vertical plane Or in alinement with each other. Surrounding the spring posts 5 are the main ar-body springs 46. These rest upon spring seats 47, which in turn rest upon the enlargements 45 of the side bars, and the side bars in turn bear upon the axle-box springs 15 through the medium of caps 48; the top chord 3 having the usual caps 49 bearing on the springs 48. The spring posts 5 also pass loosely through enlarged apertures in both the spring seats and caps -l-S.

The angular disposition of the stirrups relative to the longitudinal axis of the axle provides a greater distance between the stirrup supports than would be the case it the stirrups were located parallel to the plane of the axle while the lengthening` of this distance between the points of support is of advantage in securing` the results flowing from this improved construction, such results may be had by the parallel disposition above referred to. While this angular disposition may be modified, say for instance by reversing` the positions of the axle box ears, so that the stirrup seats diverge from instead of converge toward the axle, l prefer the arrangement shown and described.

llVhile I have shown a construction embodying the underlying principles of my improvements, l do not limit myself to the same, as many of the results flowing from my invention can be secured by a construe tion differing Jfrom that disclosed; so l do not limit my invent-ion to the exact structure shown and described herein, as the same may be modied to suit particular cases without departing from the spirit of my invention.

I claim z- 1. ln a car truck, the combination with the axle boxes, diagonally disposed stirrups movably supported from the axle boxes, and a truck frame supported upon said stirrups.

2. ln a ear truck, the combination with the axle boxes, diagonally disposed stirrups movably supported from the axle boxes, a truck frame supported upon said stirrups, and springs for supporting the truck frame on said stirrups.

3. 1n a car truck, the combination with l the axle and axle boxes, pairs'of links sup-` ported at each side of the axle boxes, each pair carrying a spring seat, a spring attached to the seats, and a truck frame supported on said springs having yokes embracing the axle boxes.

si. In a car truck, the combination with the axle, axle boxes, pairs of links pivotally supported from the axle boxes at each side thereof, a spring seat on the links, a spring on the spring seat, and a truck frame on the springs having yokes embracing the axle boxes.

5. In a car truck, the combination with the axle and axle boxes, a pair of links at each side of the axle boxes, a spring seat carried by said links, springs on said spring seats, a truck frame on said springs having yokes embracing the axle boxes, and means in the connection of said links with the axle boxes and with the spring seats for permitting a relative swinging o-r pivotalmovement between the parts.

6. In a car truck, the combination with axle boxes, each projection carrying a link,- a spring-seat supported by each pair of,

links at each side of the axle boxes, a spring on the spring seats, and a truck frame on said springs having yokes embracing the axle boxes.

S. In a car truck, the combination with an axle having axle boxes thereon, a truck frame having yokes embracing the axle boxes, projections from the axle boxes at each side of the truck frame, a link depending from the said projections, a spring seat uniting said links into pairs at each side of the axle boxes below the truck frame, and a spring interposed between said spring seat and said truck frame.

9. In al car truck, the combination with an axle and axle boxes, of a truck frame having yokes embracing the axle boxes, projections extending outwardly from each side of the axle boxes, links pivot-ally supported on said projections and depending therefrom, spring seats movably connected with the said links so as to provide for a relative movement therebetween, and a spring interposed between said spring seats and the truck frame.

10. In a car truck, the combination with an axle and axle boxes, a truck frame having yokes embracing the axle boxes, spring -seats diagonally disposed with relation to the longitudinal axis of the axle, projections from said axle boxes, means for supporting said spring seats from said projections, and a spring interposed 'between each orp said seats and the truck frame.

11. In a car truck, the combination with an axle and axle'boxes, a truck frame having yokes embracing the axle boxes, spring seats diagonally disposedY with relation to the longitudinal' axis of the axle, projections from said axle boxes, means for supporting said spring seats -from said projections,-a spring interposed between each of. said seats and the truck frame, and pivotal and movable connections between the projections and the spring seat.

12. In a car truck, the combination with the axle and axle boxes, a truck frame having yokes embracing the axle boxes, a pair of spring seats disposedbelowl the truck frame with their longitudinalaxes converging toward the axle, means for supporting said 'spring seats from'the axle boxes, and a spring interposed between said seats and the truck frame.

13 T n a car the axle and axle boxes, a truck frame having yokes embracing the axle boxes, a pair of spring seats disposed belowv the truck frame with their longitudinal axes converging toward the axle`movable means for snpporting said seats from the axle boxes, and a spring interposed between said seats and the truck frame.

14. In a car truck, the combination-with the axle and axle boxes, a truck frame having` yokes embracing the axle boxes, a pair of spring seats disposed below the truck frame with their longitudinal axes converging toward the axle, a pair of diagonally disposed links for supporting said seats from the axle boxes, and a spring interposed between said seats and the truck frame.

15. Ina car truck, the combination with the axle and axle boxes,a truck frame having yokes embracing the axle boxes, a pair of spring seats disposed below the truck frame with their longitudinal axes converging toward the axle, a pair of diagonally disposed links movably supported from the axle boxes and movably connected with said spring seats, and a springinterposed between said seats and the truck frame.

16. In a car truck, the combination with the axle and axle boxes thereon, a truck frame having yokes operatively` engaging truck, the combination with' the axle boxes, projections from the axle trame having yokes operatively engaging the axle boxes, projections from the. axle boxes at each side of the truck frame, links pivotally suspended from said projections, spring seats movably supported from said links below the truck trame, and Vsprings interposed between said seats and the truck trame.

18. ln a car truck, the combination with an axle having axle boxes, a truck trame having a yoke operatively engaging the axle boxes, projections extending from the axle boxes at each side thereof, links supported from each of the projections, a spring seat supported by said links below the truck frame, and a spring interposed between the seats and the truck frame.

19. ln a car truck, the combination with an axle having axle boxes, a truck frame having a yoke operatively engaging the axle boxes, project-ions extending from the axle boxes at each side thereof, links pivotally supported from each of the projections, a spring seat movably supported by said links below the truck frame, and a spring interposed between the seats and the truck frame.

'20. ln a car truck, the combination with the axle and axle boxes, a truck traine having a yoke embracing the axle boxes, a plurality ot projections of diil'erent lengths extending outwardly from each side of the axle boxes, links pendant from each ot the projections, spring seats supported by said links below the truck trame, and a spring interposed between said links and seats.

2l. in a car truck, the combination with the axle and axle boxes, a truck frame having a yoke embracing the axle boxes, a plu- 1ality ot projections ot different lengths extending outwardly from each side ot the axle boxes, links pivotally pendant from each ot the projections, spring seats movably supported by said links below the truck trame, and a spring interposed between said links and seats.

22. In a car truck, the combination with 'the axle and axle boxes, a truck frame having yokes einb 'aoing the axle boxes, short projections extending outwardly from each side of the axle boxes inside the truck trame, longer projections extending outwardly from the axle boxes outside ot the truck frame, links pendant from said projections at different distances from each side of the axle boxes, a spring seat supported by said links below the truck trame, and a spring interposed between said seats and the truck frame.

23. In a car truck, the combination with the axle and axle boxes, a trnck frame having yokes embracing the axle boxes, short projections extending outwardly from each side of the axle boxes inside of the truck frame, longer projections extending outwardly from the axle boxes outside of the truck frame, links pivotally pendant from said projections at ditl'erent distances from each side ot the axle boxes, a spring seat movably supported by said links below the truck frame, and a spring interposed between said seats and the truck frame.

24. In a car truck, the combination with the axle and axle boxes, a top chord, an axle box frame having yokes embracing the axle boxes, car supporting springs interposed between the top chord and axle box frame, projections extending outwardly from each side of the axle boxes, a pair of pendant links supported by said projections at each side of the axle box frame, spring seats supported by said links, a spring interposed between said seats and the axle box frame, a lower chord, and spring-posts uniting the upper and lower chords and axle box trame together.

25. ln a car truck, the combination with the axle and axle boxes, a top chord, an axle box trame having yokes embracing the axle boxes, car supporting springs interposed between the top chord and axle box traine, projections extending outwardly from each side of the axle boxes, a pair of pendant links forming a stirrup supported by said projections at each side ot the axle box trame, spring seats supported by said stirrups, a spring interposed between said seats and the axle box frame, a lower chord, and spring posts passing through the car snpporting springs, the axle box traine, the stirrup spring and spring seat and secured to the top and lower chords.

Signed at Philadelphia, county ot Philadelphia, State of Pennsylvania, this lll-th day of August, 1912.

l/VALTER S. ADAMS. W'itnesses H. F. MCKILLIP, HENRY C. Esmxs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of atents. Washington, D. C.

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