US1775114A - Railway truck - Google Patents

Description

l 1930. D. s. BARROWS 1,

RAILWAY TRUCK Filed June 14, 1928 2 Shoots-Sheet 1.

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FIG. 2

g I 7 3mm t Donald 5. Barrows 5 9 9, 9 D. s. BARROWS 1,775,114

RAILWAY TRUCK Filed June 14. 1928 Shuts-Shut z =//IIIIlI/III/l gwmmtov Donald 5'. Barrows mama Sept.- 9, 1930 UNITED STATES DONALD 8. BABBOWS, OI ROCHESTER, NElW YORK RAILWAY 'rnnox application fled Jane 1,

,This invention relates to railway trucks and more particularly to the construction of the side frames bolster and associated parts for permitting lateral motion of said bolster 5 with respect to said frames, said bolster being in t e present instance of the built-up l5 and curves in t e track and for relieving the members thereof from sudden and undue strains.

Another object of my invention is to provide a railway truck utilizing a built-up bolster with castings on the ends thereof adapted to provide rocker seats for lateral motion and interlocking with associated sprin caps.

A f urther object of my invention is to provide railway trucks formedwith side frames having bolster openings receiving springs and spring caps, said spring caps being desirably formed with a spring supported ortion and upwardly opening pockets receivin the lower ends of rockers, the upper on s of said rockers being received in corresponding downwardly opening pockets in the end castings of built-up bolsters, said end castings being also provided with inner column guide lugs for limitingloutward movement thereof with respect to t so formed as to provide for centering the bolster.

Other objects and advanta es of the inven; tion relating to the particul ar arrangement and construction of the various parts will become apparent as the descriptionproceeds. Referrmg to the drawings illustratin my invention, the scope whereof is define by the appended claims. I

' Figure 1 is a partial side elevation, partly in section, of a railway truck, particularly showing the intermediate portions of the compression. and tension members of a side frame, the connecting bolster guide columns,

= tion e frames, said rockers being 1m. Serial 10. 885,472.

the end of the bolster and ,the associated connectmg parts.

Fi e 2 is a transverse sectional view of the ame shown in Figure 1, the associated bolster and spring capbeing shown in side as, elevation.

Fi re 3 is a fragmentary transverse secview on the line 3-3 of Figure 1, lookmg 1n the direction of the arrows.

i ure 4 is a fragmentary horizontal sec- Q tiona view on the line 4-4 of Figure 1,1ookingin the direction of the arrows.

eferring to the drawings in detail, like parts being designated by like reference characters, there is shown a portion of a truck 66- comprising a side frame 1, formed with a com ression member 2, a tensio member 3 and olster guide columns 4 spacing intermediate portions thereof and spaced to leave a window opening 5 therebetween. In the 70} present embodiment, vthe side frame illustrated is of the type described and claimed in my Patent #1 652,808 of December 13 1927, on a car truclr', but it is obvious that Ii do not wish to be limited to the embodiment to of this invention in such a t of frame, this showing being preferred ut not limiting.

As more fully described in my prior patent, the side frame 1 involves auxiliary tension members 6 which cut across the lower corners of the window or bolster opening 5 and form upwardly extending convolutions which strengthen the frame and serve for interlocking the spring plank 7 with respect thereto, sai spring plank bein for that purpose provided wit correspon ing upwardly extending convolutions or corrugations 8. It will be noted that the width of said auxiliary tension members 6 and the corresponding corruglations 8 in the spring plank is less than t at of the s ring su porting ortion of the tension mem r an refera ly corresponds with the diameter 0 one of the bolster springs 9, as shown in Figure 2. I

The auxilia tension members 6 preferably terminate y mer 'ng with the spring supporting portion 0 the tension member short of the center thereof, whereby a central flat sprin supporting area is retained for the centra spring unit 10 of the nest of H, whereby the horizontal orspring support in area of the tension member is efliciently utilized for the purpose. Alternative sprin arrangements may be employed, if desire some of which are disclosed in my Patent #1,652,808, previously referred to. 1

Spring plates 11 and 12,'the former of which is constructed as disclosed in said patent,'may'be employed, although I do not wish to be limited to such details. The upper ,spring plate has to be modified to accommodate the associated spring cap, which will now be described. Resting on the tops of the springs or top spring plate 12, if used, is a 8 ring cap 13, formed .with outstanding anges or lugs 14, which embrace the adi'acent portions of the guide columns and ho d the cap in proper relation with respect to the,

frame while permitting up and own, movement thereof with variations in the load on the supported bolster 15. In the present embodiment the spring cap is formed as a single casting involving a lower web or wall 16 provided with 0. depending peripheral flange 17 which extends over and embraces the u per ends of the springs 9 andv serves to hold t em in proper assembled relation.

The lower web 16 of'the spring cap, which is preferably ribbed for strength on its upper spondinfi surface, as illustrated most clearly in Figure 4 at 18, is de ressed or pocketed downwardly adjacent the olsterguide columns to provide pockets as indicate at 19, which are preferably provided with an aperture 20 near the bottom thereof, as illustrated, to facilitate cleaning, the lower walls 21 of which form bearings for the lower ends of associated rockers 22. The outer walls 23 of said pockets form a connecting web between the flanges 14 and are continued around the front or outer ortion of the casting at 'reducedheight as a e ending peripheral flange 17, previously re erred to, and around the back in the same manner, except that the depth in'the present embodiment is slightly greaterthan at the front. y

The rockers in the present embodiment are formed roughly triangular in side elevation, the relativelysmall, pointed or rounded end 24 extending downwardly into the correswivel t erein in a vertical transverse'plane or, if desired, rocking to a limited extent by virtue of having the curvature of its lower end smaller than that of the bearing pocket.

bearing pockets 19 and adapted to In order to revent misap lication of the rockers 22 int e bearing poc ets 19, one side of the lower end 24 is narrowed or cut away, as indicated at 2 5 in order to fit between cor- 1 resppndin'g bosses 26 on the inside of the pm at The bolster in the present embodiment is or channel-shaped compression member 26', a

- flat tension member 27 and a cast end member 28, said end member being preferably connected to the compression and tension members b common rivets 29. The ends of the-tensionmember 27 preferably fit bea tween the de endin flanges 30 of the compression mem r an are seated on the lower surface of the web 31 thereof, said web preferably being bent u wardly, asindicated at 32 to aline with the inclined ends of the tension member 27. The ends of the tension member may be upset, as indicated at 33, to provide shoulders for engagingthe ends of the compression member in order to more firmly connect the parts and relieve the rivets 29 of some of the strain. The end castings 28 are seated on the ends of the tension member and are provided with downwardly opening pockets 34 for. receiving the upper ends of the rockers 22 and interlocking the bolster with respect to the spring cap 13. The pockets 34 in the casting are preferably formed with depending lug portions 35 fit ting in corresponding notches 36in the sides of the rockers 22 forholding the parts in proper relation with respect to each other.

' In addition to the endcasting 28, which is connected to the under side of the compres sion and tension members 26 and 27 side pieces or castin s 37 may be provided, formedceivin outstanding lug ortions 42 on the obvious that the other end of said bolster and the other side frame and parts associated therewith may conform with the drawings-j The rockers 22 are desirably formed of the type illustrated in my patent for railway trucks, No. 1,740,143, dated December 17,,

1929, with curved upper sides 43 so designed ster is provided for. The poo ets-19 receiv-.

ing the lower ends of said rockers have walls 44 disposed apart a sufficient distance to allow the desired movement of the rockers for a pre-determined lateral motion of the associated bolster. 1

From the foregoing it will be seen that I have devised a truck in which provision is made for transverse movement of the bolster, which bolster is of the Huntoon or builtup ty Although the rockers onlypermit latera motionof the bolster in the present instance, it is obvious that I do not wish to be limited to such a showing, as an intermediate plate may be disposed between the spring cap and rockers for permitting transverse rocking of the bolster in longitudinal vertical 'planes, as illustrated in Figures 1 to 4:, inclusive, of my Patent 1,740,143, previously referred to. i

Having thus described my invention, I

claim:

1. A'railway truck having side frames and a bolster connecting said frames. said bolster comprising an angular compression member, a tension member connected thereto and extending therebeneath, and cast end pieces connected adjacent the ends of said compression and tension members with their undersurfaces formed with pockets spaced transversely of said bolster toreceive lateral motion permitting devices. a

'2. A railway truck 'formed with side frames and a bolster connecting said frames and received at its ends in bolster openings therein, said bolster being formed with a compression member, a tension member, cast end pieces and common rivets extending through said end pie'ces. compression and tension members, said end pieces being formed with lugs adapted toengage the side frames and downwardly opening pockets spaced longitudinally of the side frames and adapted to receive devices for permitting lateral motion of said bolster. I

3. A railway truck having a side frame formed with a bolster opening, springs supported in said bolster opening, a spring cap su ported on said s rings and interlocked with respect to said frame, and a bolster disposed above said spring cap, said bolster comprising an angular compression member and a flat tension member, the ends of sa1d compression and tension members being riveted.

together and to end castings,-the corresponding end casting being disposed above the spring cap and formed with a downwardly opening pocket the spring cap immediately below said pocliet being formed with an uplateral motion thereof.

wardly opening pocket extending from below the tops of and between adjacent springs, and rocker means .disposed in said pockets for supporting the bolster and permitting 4. A railway truck having a side frame formed with a compression member, a tension member, bolster guide columns connecting intermediate portions of said members,

on, said bolster comprising an angular compression member, a fiat tension member and end castings formed with downwardly opening pockets receivin the 11 per ends of said rockers and providing sur engagement therewith.

5. A railway truck having a side frame aces for rocking formed with a compression member, a tension member. bolster guide columns connecting intermediate portions of said members, bolster springs disposed between said columns, a spring cap formed with pockets immediately adjacent and between said columns. rockers in said pockets and supported by said cap below the tops of the springs. and a bolster supported on said rockers and adapted to move laterally thereon, said bolster comprising a compression member, a tension member and an end casting connected together by. common rivets, said end casting being formed with downwardly opening pockets overlying the pockets in the spring cap for receiving the rockers for permitting the bolster to move laterally with respect to said frame.

6. In a railway truck. a side frame, a holster comprising an angular compression memher. a flat tension member connected thereto and extending therebeneath, east end pieces connected adjacent the ends of said compression and tension members with their undersurfaces formed with downwardly opening pockets extended 'longitudinallv of the bolster and presenting downwardly facing flat surfaces, lateral motion devices supported by said frames with their upper ends received in said pockets and supporting the bolster. and depending lugs in said pockets received in notches in said devices for holding the parts in proper relation.

7. In a, railwaytruck, a side frame with a bolster opening,-a bolster with an end received in said opening, said bolster being formed with a channel shaped compression member, a flat tension member, cast end pieces and common rivets extending through said I end pieces, compression and tension members,

said end pieces being formed with lugs adaptframe, and a bolster disposed above said spring cap, said bolster comprising an angular compression member and a flat tension member, the ends of said compression and tension members being riveted together and to end castings, the corres ending end castin being disposed above t e sprm cap an formed with a downwardly openin pocket, the spring cap immediately below said pocket being formed with an upwardly opening pocket, and means with an upper portion disposed in said bolsterocket in rocking engagement therewith an with a lower ortion disposed in said cap pocket in swive ing engagement therewith for supporting the bolster and permitting lateral motion thereof.

9. In a railway truck, aside frame formed with a compression member, a tension member, bolster guide columns connecting intermediate ortions'of said members, springs disposed between said columns, a spring cap formed with pockets immediately adjacent and between saidcolumns, rockers in said pockets and abolster supported on said rockers and adapted to move laterally thereon,

said bolster com rising an angular compression member, a at tension member, an end casting formed with downwardl opening pockets receiving the up 1 ends 0 said rock-" ers and providing sur aces for rocking engagement therewith, and side members connected to the compression member of the bolster and formed with lugs adapted to limit movement of the bolster with respect to saidframe. g

10. In a railway truck, aside frameformed with a compression member, a tension member, bolster guide columns connecting intermediate ortio'ns of said members, bolster springs isposed between said columns, a spring cap formed with openings immediately adjacent and between sai columns,roc'kers 1n said pockets, and a bolster supported on said rockers and adapted to move aterally thereon, said bolster comprising a channel shaped compression member, a flat tension memberextendin between the flanges of the compression mem er and connects to the web thereof and an end casting connectedto said compression and tension members, said end casting having downwardly opening pockets overlying the pockets in the sprin cap for receiving the rockers to permit t e bolster to move laterally with respect to said frame.

thetension member which'cut across the lower the horizontal area of the spring supporting corners of the window opening and restrict portion of the tension member, bolster springs rocker receiving pockets immediately over the auxiliary tensionportions so as not to interfere with the bolster rings, rockers in' said pockets, and a bolster ormedwith upper rocker bearings supported on said rockers for lateral motion with respect to said frame, said bolster comprising a channel shaped compression member, a fiat tension member with the ends thereof extendingbetween the depending flanges of the channel member and connected to the web thereof and an end member connected to the corresponding end of said bolsterand in which is formed the rocker bearings, and side members on said bolster connected to the flanges of the compression member and'formed with lugs adapted toengage the bolster guide columns and limit movement thereof.- a

12. A built-up bolster com rising a channel shaped compression mem er with'an upper we tension member and end castings, said compression and tension membersbeing connected together and to the end castings b common rivets, said end castings being fbrmed with downwardly opening pockets, spaced transversely of said bolster, for receiving lateral'motion devices. Y 13. A built-up bolster comprising a channel shaped compression member, a flat tension member with the ends thereof extended between the flanges of thecompression member and connected .to the web thereof, the endsof said web being upwardly bent to aline with the ends of the tension member, an end casting connected at the end of said bolster and formed with downwardly openin pockets adapted to receive lateral motion evices,

and depending'side flanges, a flat and side members connected to the outer sur- 7 g In testimony whereof I aflix my si nature.

DONALD S. BARR WS.

11. In a railway truck, a side frame formed with a compression member, a tension member, bolster guide colums interposed therebetween and spaced to leave a window opening,

that portion of the tension member between the bolster guide columns being laterally widened for supporting bolster springs, the 'unctions between said tension member and lster guide columns being reinforced by auxiliary diagonal tension portions of less width than the springsupporting portion of

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