US2059963A - Railway vehicle - Google Patents

Description

Nov. 3, 1936. D s BARROWS 2,059,963

RAILWAY VEHICLE Filed oct. 4, 1954' s sheets-sheet 1 NOV. 3, 1936. l D S' BARROWS 2,059,963

RAILWAY VEHICLE Filed Oct. 4, 1934 5 Sheets-Sheet 2 J70/7a /d .Einw/GMS Nov. 3, 1936. D. 5,/-BARRows 2,059,963

RAILWAY YVEHICI-E Filed ooi. 4, 19.54 's sheets-sheet 's las L 151 @e JMW A r/ ya /Q Bannon/YS 14- 267/ f J5` -h-w m,- I f" @KM f a.

Patented Nov. 3, 1936 PATENT OFFICE RAILWAY VEHICLE Donald S. Barrows, Rochester, N. Y., assignor to The Symington Company, Rochester, N. Y., a corporation of Maryland Application October 4, 1934, Serial No. 746,886

19 Claims.

at one end and supporting the car by means of a spring or springs at the other end, said frame carrying a journal box and including another spring between the top of said journal boxand the top portion 'of said frame.

A further object of my invention is the provision of a frame pivoted atone end to the car body of a four-wheel railway vehicle, with a journal box mounted for vertical movementwith respect to a closed pedestal portion oi said frame, a spring mounted -`on th'e roof of said box and acting upwardly against one or more inverted seats on the frame, and the other end of said' frame carrying a brake hanger support and spring mounting, said latter spring being so proportioned with respect to the first-mentioned spring and the distances with respect Vto said pivotal connection between the frame and car body being such that the brake hanger support is maintained at constant elevation with respect to the rail on which the associated wheel travels.

Other objects and advantages of the invention relating to the particular arrangement and construction of the various parts will become apparent as the description proceeds.

Referring to the drawings illustrating my invention, the scope whereof is defined by the appended claimsr-L Figure 1 is a fragmentary side elevational view of a portion of a four-wheel railway vehicle embodying my invention, portionsof` the vehicle underframe being shown insection, the parts being shown in the positions they assume when the vehicle is fully loaded.

the vehicle shown in Fig. 1, with portions in section, on the line 2-2 of Fig. l, looking in the direction of the arrows.

Fig; 3 is a fragmentary sectional view on the line 3-3 of Fig. 1, looking in the direction of the arrows.

Fig,2 is'a fragmentary `plan of the parts of j Fig.` 4 is a fragmentary view of one end portion of a railway car embodying my invention, the position of the parts ofthe side frame or journal box mounting being illustrated as for-a light car.

Fig. 5 is a view corresponding to Fig. 4, but showing the other end of the car when the same is so loaded that the springs are solid, the frame being slightly modiiied.

Fig. 6 is a fragmentary side elevational view corresponding to Fig. 1, but showing, a modification.

Fig. '7 is a fragmentary transverse sectional .view on the line 1 1 of Fig. 6, looking in the direction of the arrows, but showing how the frame appears with a, coil spring and friction snubber rather than a plain spring.

Fig.' 8 is a transverse sectional view on the line 8--8 of Fig.'6, looking in the direction of the arrows, and showing how'the bracket and springengaging end of the frame looks with a coil H spring and friction snubber instead of a plain spring.

Figs. 9 to 21, inclusive, are diagrammatic plans showing various possible combinations of coil springs with and without friction snubbers.

Referring to the drawings in detail, like parts being designated by like reference characters, and first considering the embodiment of my inventionillustrated in-Figs. 1 to 5, inclusive, there is shown a fragmentary portion of a railway vehicle underframe i supported by four wheels 2. Inasmuch as the mounting for each wheel is identical, except` that lthe one-wheel 'side frames 3 `are desirably pivoted at their outer or end sill ends, the description will be of the mounting of o-ne of saidframes only'.`

Depending from the underframe I is a bracket 4 bifurcated to provide bearings 5 and vreceiving a pin or journal 1 passing through the apertured end portion 8 of the frame or journal box mounting 3. The apertured portion 8 is extended va relatively great distance beyond 1the inner side of the frame to provide the length'ofbea'ring on the pin 1 required for resisting forces to`which the frame 3 may be subjected. The pin 'I'is secured in position in any desired manner as by having one end abut against a shouldered portion 8' of thebracket arm 5,V and the' other end prevented from undesired removalby means of .a retainer 9, the ends of which are bent',las'illustrated in Fig. 3, to prevent loss.

The frame 3 desirably comprises `an upper portion l0, a lower portion il, "journal box guiding portions i2 extendingtherebetween, upwardly converging bracing portions I3, upwardly diverging bracing portions I4, and downwardly diverging end portions I5 of the upper member II! meeting the approximately horizontal end portions I6 of the lower member I I. The portions I5 and I6 form at one end the pivoted end portion 3 of the frame, and at the other end mrge to provide an upwardly opening cup I1 receiving a prefer- 1 ably coiled spring or springs I 3, the upper end or ends of which engage a normally horizontal shelf portion I9 of a bracket 20 connected to the underframe I 4of the car. The bracket 2liY is also provided with a pocket 2I defined by a web 22 and flange portions 23 receiving the cupped end I1 of the frame 3, allowing a substantial amount of vertical movement with -respect to the underframe.

Received between the guide columns I2 of the frame is a journal box 24 providedwith outer guide lugs 25 only, in order to facilitate application and removal from what amounts to the closed pedestal portion 26 of said frame. The usual interlock between the Journal and box, through the illustrated collar on the end of the journal and the associated brass and wedge in the box, is relied onto prevent undesired outward movement of the box with respect to the frame and journal. The frame is supported by a spring 28 which, in the present embodiment,

is illustrated as semi-elliptic,l and engages the top of the box 24 which receives the journal 21 of' the axle 36. The spring 28 comprises spring leaves 29 held by a spring band 30, the outer ends of said spring engaging desirably thickened portions 3I of the web 32 of the upper normally horizontal member of the frame 3. A full elliptic or other type of leaf spring device may be substituted for the semi-elliptic spring 23.

In addition to carrying the spring cup portion I1, the free end of the frame 3l also carries a brake hanger support 32 desirably integral therewith and to which the brake lever 33 carrying the brake head 34 is pivoted. 'Ihe pivot member 35, on which an intermediate portion of the lever 33 is mounted, may be separate for each lever or may, if desired, extend across beneath the car underframe to serve for tying two frames 3 together and as a common pivot member for a pair of brake levers at opposite sides of the car.

In order to maintain the point of brake hanger support at a uniform distance from the axle 33 for the wheels 2 and the supporting rail 31, the ratios of the springs and distances from the point o! pivotal support of the frame are desirably as iollows: The capacity of the semi-elliptic spring 23 is equal to the maximum wheel reaction or load which will be applied to each wheel. The capacity of the coil spring I3 is onehalt that amount and its travel twice that of the semi-elliptic. The moment arm of the coil spring I3 about the pivot 1 corresponds with that of the brake hanger or lever 33. When the car body and side frame pivot drop 2", for example, with reterence to the axle 33, the semielliptic spring 23 is compressed 1", the iloating end of the frame remains stationary with respect to the axle because the coil spring I3 has been compressed 2" by the downward movement of the car body, andthe frame itself cants upwardly, and away from the center of thexcar after it has passed beyond the full load or normally horizontal position illustrated in Fig. 1, when said frame is pivoted at its end-sill end, as illustrated, maintaining the point of brake hanger support stationary. This arrangement eliminates a pre.- vious objection to the use of four-wheel cars by obviating the undesired displacement of .the brake shoe with respect to the associated wheel.

Although the pivot point of the brake lever 33 and the vertical axes of the coil springs are shown located at equal distances from the center of the axle and center of pivotal movement of the frame 3, it will be understood that I do not wish to be limited to this showing, as the brake hanger may be maintained at the desired uniform elevation if positioned at a slightly diierent location, provided the relations of the spring deflections and capacities are correspondingly changed. The preferred embodiment illustrated is merely that on the basis of equal arms, with the coil spring travel twice that of the semi-elliptic spring travel, and is apparently preferable because the brake support is desirably disposed at a point approximately corresponding with the free end of the frame 3.

Although only one coil spring I8 for each frame need be employed, yet it desired, an inner coil 38 may be found advantageous, which inner coil would be longer or 4of greater free height than the outer coil, and would continue to work with the outer coil for full compression. When all weight is removed from the outer coil, as, for example, if the wheel 2 suddenly reached a low spot in the rail 31, the inner coil 38 would continue its action on the frame 3, and possibly prevent the wheel 2 from leaving the rail. A

A comparison of Figs. 1, 4, and 5 will show clearly the action of the arrangement in maintaining the brake support at constant elevation or distance above the axle and rail. Fig. 4 shows the position of the frame when the car is light, said frame sloping downward from its pivoted end, with the springs under light compression.y

fromv the pivotal connection rather than beingI approximately horizontal, as in Fig. 1, and the pocketed portion 2| of the bracket 23 having moved still further over the tree end of the frame, without however, causing any change in the elevation of the brake hanger support. The open pedestal portionsor jaws 23 of this frame 3' l are shown closed by the-plate 33 secured'to the frame by bolts 4l.

Referring now to the embodiment of my invention illustrated in Figs. 6 and 9, there is shown a fragmentary portion of a railway vehicle l` f supported by tour wheels 2*, as in the previous embodiment. Depending from the underframe I' is a bracket 4l which may correspond with the bracket 4 of the preceding embodiment and be pivotally connected to an end of the one-wheel side frame or journal box mounting 3*. as in the preceding embodiment.

The frame ll'is desirably somewhat different from the frame 3 of the preceding embodiment, and comprises a compression member Ill, a tension member I I, journal box guide portions I2 extending therebetween, said compression and tension portions merging at their ends', and the end not pivotally connected to the bracket 4l being provided with an upwardly opening cup I1. receiving a coil spring or springs Il", as in the preceding embodiment. The upper end of said springer springs |811 engages a normally horizontal shelf portion |911 of a bracket 2811 desirably constructed like the bracket 20 of the preceding embodiment.

Received between the guide columns |211 of th frame 31 is a journal box 2411 provided with outer guide lugs 2511 only, as in the preceding embodiment. The frame in the present embodiment is supported by a spring 2811 which, in the present embodiment, is a single coil spring, and engages the top of the box 2411 which receives the journal 2111 of the axle of the wheel 211.

The frame 3a carries a brake hanger support at the end which engages the spring |811, as in the preceding embodiment, and the relative capacities and travels of the springs' |811 and 2811 are in accordance with the description of the preceding embodiment, so that the point of brake hanger support remains stationary under varying loads.

Instead of employing only a single spring |811, with or without an inner coil 3811, corresponding with the inner coil 38 of the first embodiment, at the end of the frame, and a single coil 2811 over the journal box, as illustrated in Figs. 6 and 9, I may employ a single coil |811, with or without an inner coil 3811, at the end of the frame, and

two coils 2811 disposed side by side, as shown in Fig. l0, and engaging the journal box.

Fig. 11 shows a further embodiment in which coils |8c are used side by side at the end of the frame instead of the coil |811 of Fig. 9, a single coil 28c being employed over the journal box.

Fig. 12 shows a further embodiment in which two coils I8d are disposed at the end of the frame, and two coils 2811 over the journal box.

Fig. 13 shows a further embodiment in which the free coil spring over the journal box is replaced by a spring and friction snubbing device 2811, as illustrated in Fig. 7, a single coil I8e being employed at the end of the frame.

Fig. 14 illustrates a modication of Fig. 10 in which the coils 2811 are replaced by a frictionally snubbed coil 28t over the box, the companion coil being free and designated by the reference character 291, the spring |8t at the end of the frame being merely a single coil.

Fig. 15 shows a further embodiment in which the single spring at the end of the frame is replaced by two springs |811 disposed side by side,v

snubbed and free coils 2811 and 2911 being em-v ployed over the journal box.

Fig. 16 shows a further embodiment in which.

a single free coil 2811 is employed over the journal box, and a single snubbed coil |811 is employed at the end of the frame, the details of said snubbed coil being in accordance with Fig. 8.

Fig. 17 shows a further embodiment in which a single free coil 281 is employed over the journal box, and one snubbed coil |81 and onefree coil |91 are disposed sideby side at the end of the frame.

Fig. 18 shows a further embodiment in which two free coils 28k are disposed side by side over the journal box and snubbed and free coils I8k and |911 are disposed at the end of the frame.

Fig. 19 shows a further embodiment in which a snubbed coil 28111 is employed over the journal box and a snubbed coil |8111 is employed at the end of the frame.

Fig. 20 shows a still further embodiment in which a snubbed coil 2811 is employed over the journal box and one snubbed coil |811 and a free coil |911 are disposed side by side at the end of which a snubbed coil 2811 and a. free coil 2911 are disposed over the journal box, and a snubbed coil |811 and a free coil |911 are disposed at the end of the frame.

As a further embodiment, the semi-elliptic spring 28 of Figs. 1, 2, and 3 may have its ends bear against cups carrying coil springs with or without snubbers, bearing against the inner surface of the top web of the frame. Or the spring 28 of Fig. l may have its ends bearing against the frame as shown, and its band 30 resting in a cap supported on one or-more coil springs, with or without snubbers, standing on the roof of the box 24.

From the foregoing, it will be seen that although my invention may include both coil and plate springs, semi-elliptic or elllptic,yet, if desired, I may instead employ any combination of 2. A single coil spring at the end of the frame A and two side by side over the box.

3. Two free coil springs side by side at the end of the frame and a single coil spring over the box.

4. Two free coil springs at the end of the frame and two free coil springs over the box.

,5. A single free coil spring at the end of the frame and a frictionally snubbed' coil spring over the box.

6. A single free coil spring at the end of the frame and one free and one snubbed coil spring disposed side by side over the box.

7. Two free coil springs at the end of the frame and one free and one snubbed coil spring disposed side by side over the box.

8. A single snubbed coil spring at the end of the frame and a single free spring over the box.

9. 'One free coil spring and one snubbed coil vspring at the end of the frame, and a single free coil spring over the box.

10. One free coil spring and one snubbed coil spring at the end of the frame and two free coil springs disposed side by-side over the box.

11. A single snubbed coil spring at the end of the frame and a single snubbed coil spring over the box.

12. One free coil and one snubbed coil .spring at the end of the frame and a single snubbed coil spring.l over thebox.'

13. One free coil spring and one snubbed coil spring at the end of the frame, and one free coil spring and one snubbed coil spring over the box.

14. One or more, free or snubbed, coil springs at the end of the frame, and, over the box, a semielliptic spring with its ends acting on free or snubbed coil springs.

15. One or more, free or snubbed, coil springs at the end of the frame, and over the box, a free or snubbed coil spring, or springs, supporting a semi-elliptic spring.

Although I have disclosed preferred embodiments of my invention it will be understood that still further modifications may be made within the spirit and scope of the appended claims.

I claim:-

1. In a railway vehicle, a side frame for receiving one end portion only of a single axle, one end of which frame is movably mounted with respect to. said vehicle and the other end of which is guided in a. bracket depending from said vehicle and engages a vehicle-supporting spring, a journal box slidably mounted in said frame between said ends, and another spring acting betweenA said frame and the top of said box. 4 2. In a railway vehicle having a body, a mounting for a single journal box only having one end 5 portion laterally elongated and apertured to receive a relatively long pivot member for connecting it to va side portion of said bo'dy, springs between the body and the other-end of said pivoted mounting, ajournal box arranged between said' l0 ends for vertical movement with respect to said mounting, and a spring mounted on the roof of the box and acting on said mounting. 3. In a railway vehic'le, a side frame for cooperating with one end portion only of a single axle, one end of which is pivotally connected to a side portion of said vehicle and the other end ofwhich engages a vehicle-supporting coil spring, a journal box slidably mounted with respect to said frame and a semi-elliptic spring acting between said frame and the top of said box.

4. In a railway vehicle, a side frame comprising anintermediate closed pedestal portion, a journal box slidably received in said portion and provided with outer guides only to facilitate application andv removal thereof, the interior construction of the box being such that the end collar on a normal journal received therein, and the usual brass and wedge, cooperate therewith to prevent undesired outward movement of said box .30 with respect to the frame, one end of said frame ,being pivotally connected to a depending portion of said vehicle and the other end acting on asaid frame, and another spring acting betweenA said frame and said box, the proportionsof said 4,5 springs and their distances from the' movably mounted end of the frame as-compared with the distance of the brake hanger support therefrom being such that said support is maintained at a constant elevation under varying loads.

`6. In a railway vehicle, a side frame,.one end .of which ls pivotally connected to a side portion of said vehicle and the other end of which engages a vehicle-supporting spring, a journal box slidably mounted in said frame, and a leaf 55 spring mounted on the roof of said box and acting on a portion of said -frame thereabove.

rI.'In a railway vehicle, a frame disposed at the side of said vehicle, one end'of which is pivotally connected to said vehicle side and the 60 other end of which engages a vehicle-supporting coil spring, a journal box disposed between said ends and slidably mounted with respect to said frame, and a coil spring acting between saidl frame and the top of said box.

6 5 8. In a railway vehicle, a side frame, one ,end of which is pivotally connected to a side portion thereof and the other end of which engages a vehicle-supporting coil spring, a journal box mounted for vertical movement between guiding 70 portions of said frame, and a coil spring and snubber acting between said frame and the top of said box.

9. In a railway vehicle, a side frame, one end of which is pivotally connected to a side portion 76 thereof and the other end of which engages a vehicle-supporting coil spring and snubber, a journal box slidably mounted in a pedestal portion of said frame, and a coil spring and snubber acting between said frame and the top of said box.

l0. In a railway vehicle, a side frame for cooperating with a single axle, one end of which frame is pivotally connected to said vehicle and the other end of which carries a brake hanger support and engages a vehicle-supporting spring, a journal box mounted'v for up-and-down movement in said frame, another spring acting be- .tween said frame and box, said springs and the distances from the frame pivot being so proportioned that the brake hanger support is maintained at-a constant elevation under varying loads, and means serving to pivot the ,brake hanger with respect to said frame,'said means extending to the other sideof the vehicle to serve as a common pivot for corresponding brake hanger means at the other side.

11. A side frame comprising an upper portion, a lower portion, journal box guiding portions extending therebetween, upwardly converging bracing portions extending between said lower and upper portions, upwardly diverging bracing portions extending between said lower and upper portions, said upper portion having downwardly diverging end portions joining the end portions of said lower portion, one end of said frame at the junction of said diverging end portions with the ends of the lower portion being apertured to receive a pivot, and the other end having an upwardly opening pocket to receive a spring.

12. A railway vehicle comprising a pair of side frames at each end, said side frames each having their ends nearer the adjacent end of the vehicle pivoted thereto, the other end'of each frame engaging a vehicle-supporting spring, a journal box disposed between said ends of, and slidably mounted with respect to, veach frame, and another spring actingv between each frame and the top of said box.

13. In a railway vehicle, a side frame comprising an intermediate closed pedestal portion, a `journal box slidably received in said portion, means pivoting one end of said frame to said vehicle,l resilient means serving to support said vehicle from the other end of said frame.' and a leaf spring mounted on the top of said box and acting on the portion of said frame thereabove.

14.- In a railway vehicle, a side frame, means movably mounting one end of said frame with respect to said vehicle, a brake hanger support carried by the other end of said frame, a vehicle supporting spring acting on the frame adjacent said support, a journal box mounted for vertical movement with respect to said frame, and resilient means acting between said frame and box, the relation between said spring and resilient means being such that said support ismaintained at a constant elevation under varying loads. l'

15. In a railway vehicle, a side frame at each side, means independently pivotally connecting corresponding ends of said frames to said vehicle, a brake hanger support mounted adjacent the free end of each frame, and means serving to pivot brake hangers with respect to said frames, said means extending from the brake hangersupport of one lframe to that of the other to serve as a common pivot.

-l6. A side frame comprising an upper portion, a lower portion, journal box guiding portions extending therebetween, said upper and lower portions being united atv their ends, one end of said frame being apertured to receive a generally horizontal pivot for mounting on an associated vehicle, and the other end having a pocket opening upwardly to receive a vehicle-supporting spring.

17. A side frame comprising an upper member having a normally horizontal portion and downwardly diverging end portions, a lower-member havingupwardly diverging end portions meeting the end portions of said upper member, struts therebetween forming a pedestal for an associated journal box, one end of said frame being apertured to receive a pivot, and the other having an abutment for a vehicle-supporting spring.

v 18. In a railway vehicle, a journal box mounting, one end of which is movably connected to a side portion of said Vehicle, and the other end of which carries a brake hanger support and holds 20 a vehicle-supporting spring,

a journal box slidably associated with said mounting and another spring acting between said mounting and box, the relation between said springs being such that the support is maintained at a substantially constant elevation under varying vehicle loads.

19. A side frame comprising an upper member having a normally horizontal intermediate portion and downwardly diverging end portions, a lower member having upwardly diverging end portions meeting the end portions of said upper member, intermediate portions of said frame forming guides for an associated journal box, one end of said frame having a portion extending laterally for a relatively great distance beyond the normal inner frame side surface and apertured for the reception of a correspondingly long pivot member, and the other end portion of said frame having an upwardly opening pocket .for receiving a vehicle-supporting spring.

DONALD S. BARROWS.

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