US1763221A - Railway truck - Google Patents

Description

June 10, 1930. c J. w. CLAS-EN RAILWAY TRUCK Original Filed April 15, 1925 4 Sheets-Sheet 1 MW mm SM C. J. W. CLASEN June 10, 1930.

RAILWAY TRUCK 4 Shets-Sheet 2 Original Filed April 15, 1925 June 10, 1930. c. J. w. CLASYEN ,763,221

RAILWAY TRUCK 1925 4 Sheets-Sheet 3 Original Filed April 13 June 10, 1930. c, w, c sEN 1,763,221

RAILWAY TRUCK Original Filed April 13, 1925 4 Sheets-Sheet 4 Patented June 10,1930

UNITED- STA rss OFFlC E I I v J CLAUS J. W. CLASH, OI DAVENPORT, IOWA, ASfiIGNOR TO THE,BETTENDORF COI- rm, OI BETTENDORF, IOWA, A CORPORATION 01 '-IOWA.

aamwar Timex Application fled A ril 13, .1925, Serial no. 22395. Renewed Noiiember as, 1929.

- This invention relates to railway trucks.

The general object and nature of the present invention is to provide means for increasing the spring capacit of a railway truck of a 'ven size without t e necessity for length-, enmg the wheel base, increasing the depth, or appreciably increasing the weight of the component parts of the truck. In my related h applicatlons Serial N 05: 22,594 and 22,597 mfi ed of even date herewith, are disclosed several expedients for increasing the spring capacity of a truck, without increasing its size or weight, ,and the present invention contemplates broadly the means accomplishing this result in a simple and effective manner.

An object of this invention is to provide a railway truck including side frames, each of which comprises tension and compression members, in conjunction with guide columns which are spaced apart a relatively great dis tan ce proportionate to the dimensions of the frame, so as to afiord an increased longitudir nal area fol; an increased number of spring units, the ide columns being of a characalter in whic the same are spaced apart sub-.

stantially uidistantly throughout the ex tent of the lster opening, in combination with means for bracing the guide columns and tension member of the side frame.

so A further object of my invention is to provide ide colurnns of this character which have t e inner ide faces of their lower portions recessed or thegaccommodation of additional spring units, afi'ording a sprin rest as of increased extent to seat a sprin c uster including additional units, without t enecessit of widening all portions of the guide co umns. Another object of the invention is to provide a particular type of bolster arranged to co-operate with si e frames of the character referred to, such bolster having its end portion sufiiciently widened to bear uniformly upon all portions of the'spring cluster, the body of such bolster within the ends thereof being relatively narrow to provide maximum clearance for the brake beam and hangers ordinarily associated with the side frame. t so A further object of the invention is to ap- 'ply the inventionin connection with lateral lI10t10I1 trucks.

Other and further objects of the invention will more clearl appear from the description and claims ereinafter' following.-

In the drawings, Fig:1.is a side elevation of a truck side frame, showing my invention applied thereto. Fig. 2 is a top plan view of I a side frame and a fragment of a. bolster, parts of the bolster being broken away to. dis close the spring plank arrangement. 1 Fig. 3 is a side elevation of a truck side frame showing a slightly different embodiment of m .in-' vention. Flg. 4 is a top plan view 0 the construction shown in Figure 3, showing a' fragment of a bolster in connection therewith. Fig. 5 is'a'fragmentary side elevation of another slightly different embodiment of the invention. Fig. 6 is a part sectional and part elevational view of the invention substantially on the line 66 of Fig. 5. Fig. 7 is a transverse, sectional view of the invention on the line 7- 7 of Fig. 3. Fig. 8 is a transverse vertical sectional view of the invention on the line 8-8 of Figure 1. Figure 9 is a transverse sectional view similar to Fig. 8, showing the application of the invention to a lateral motion truck side frame. Fig. 10 is a transverse, sectional view similar to a portion of Fig. 8, showing a slightly different em- 'bodiment of the spring plank arrangement used in connection with my invention. Fig. 11 is another slightly different embodiment of the spring plank arrangement. And Fig. 12 is still another slightly difl'erent embodiment of spring plank construction.

,Referring first to the construction illustrated in Figs. 1, 2 and 8 there isshown a side frame of a truck, and in this connection I have deemed it necessary to illustrate the parts on one'side of the truck only, it being understood that the other side of the truck will be correspondingly made.

The side frame comprises a compression member 20, a tension member 21, and journal boxes 21', preferably formed integrally with: the side frame.

' 4 The invention broadly includes guide columns A+A, of a particular formation, a

spring rest B, a spring cluster C, reinforcing means D and a bolster E.

The bolster guide columns A-A are preferably formed integrally with the compres- 5 sion member'20, and tension member 21,and such bars are spacedapart a relatively great distance proportionate to the dimensions of the side frame to accommodate an increased number of spring units.

spaced substantially equidistantly throughout their extent, merging as shown at 23 with the reinforcing members D. The. lower portions 24 of the guide columns A-A are undercut as indicated at 25 to provide recesses t 26 for the reception of the spring units 27 disposed therein, thereby affording room upon the spring rest B for two additional spring units, the remaining spring units of the spring cluster C being grouped as illus trated in Fig. 2 on such spring rest, that is, in two transversely disposed palrs, with a central unit therebetween, the spring rest being arranged to extend laterally of the tension member 21 a suitable distance as shown" t di in Figures 2 and 8 of the drawings.

The reinforcing means D are preferably in the form of rigid integral vertically dlsposed walls, one of which .is arranged on either 50 side of the spring rest B, the walls following the outline of the spring rest and being con nected with, and "formed integrally with the lower portions of the guide columns A-A, the spring rest B, and the tension member 21. By reason of their disposition as-de-.

, scribed and shown the walls D operate as combined tension and compression members for bracing the side frame to compensate for the increased length o1: the spring rest B.

It should also be observed that this arrangement affords a safety pocket-for the-spring unitsof the spring cluster C to prevent disengagement and loss thereof.

The bolster E has a widened portion 28 shaped substantially similar to, and co-extensive with the enlarged spring cluster Q56 as to bear uniformly'thereon in operat ve position. Such bolster is of a width which may be inserted endwise between the upper portions of the guide columns AA so as to slidably fit thereb'etween, the bolster being provided with lugs 29 adapted to abut the dinner sides 30 of the guide columns A-A. The outer end oftthe bolster E when'in posi- 5 tion projects beyond the outer faces of the guide columns A-A, and this portion of the bolster is provided with a keyway 31 adapted for the reception of a key 32, 'such key being vw held in position by suitable bolts 33, and being arranged to bear upon. the outer faces of the guide columns 50 as to retain the bolster in operative relation with the side frame. Such bolster is reduced in width as 05 indicated at 34 soas to permit ample clear-y Thev major por- 10 tions 22 of the guide columns AA are 'ance for the brake beam hanger brackets 35 as shown.

In conjunction with the above described construction,'which includes the connecting walls D, enclosing the spring rest B, a. novel plank arrangement is desirable, such for instood, of course, that the connections between the opposite frame of the truck will be simi lar in all respects to those which will.be now described. The end 37 of the spring plank; is adapted to'rest upon a shelf 38 which isformed as an extension of the spring rest B on the inner side of the frame, and such shelf is provided with a plurality of 'upapart, and the spring plank is provided with apertures adapted to fit over such bosses.

osses 39 spaced a suitable distance Disposed upon the sprin rest B, within the enclosing walls D provi ed by the reinforcing members, is a spring seat 40, such spring seat being provided withfingers or lugs 41 which extend through apertures 42 formed in the inner wall D, such lugs bearing upon ,the end of the spring plank 36 between the bosses 39, and since the spring seat 40 is held in position by th pressure exerted thereon by the spring cluster C, the spring plank is securely held in position by the lugs41 of such sprin seat.

A sTightly different embodiment of the invention is1llustrated-i'n Figures 3, 4 and 7,

and since this construction is'closely analo gous to that heretofore described in connec tion with Figures 1, 2 and 8, similar parts will be designated by the same reference characters used in connection with such figures. In this arrangement the upper portions of the 'de columns A- -A are spaced apart a s 'ghtly greater distance than that contemlated in connection with the construction be-* ore described suchspacing bein for the urpose of obviating the necessity or provi ing offsets to form the tops of the recesses'in the lower portions of the inner faces of the guide columns, so that the spring cluster C which is similar in disposition to the spring cluster C, may be disposed entirely between the guide columns A"A', the spring rest B of course being bf the same extent. The reinforcing members D are dis on opposite sides'of the spring rest B in the same manner as heretofore explained, and the spring plank arrangement is similar in all respects. The bolster E however has a portion 28', which is wider than the rtion 28 of the bolster E, to take care of t e increased extent of thespring cluster C, and to cause the same to fit snugly between the guide faces of the guide columns A-A', such bolster being red need as indicated at 34' to afford clearance for the brake beam tie rod 35 ily understood. g

Another slightl different embodiment of the invention is i ustrated in Figures and 6 of the drawings. This construction is somewhat similar to that shown in igures 1, 2, and 8, in that the spacingof the guideas will be readcolumns is substantially the same. ln this' construction-the side frame comprises a-compreission member 100, tension .member 101,-'

ide columns'F-F. The frame also inclu es :1 spring rest G, reinforcin .means H, springcluster I, and bolster J. T eguide columns F -F are spaced apart approximately. the same distance as the columns A-A'heretofore described, and have their lower portions 102 recessed .as indicated at 103 in the same manner as the columns A-A, such recesses being utilizedto accommodate V the otherspring units of the cluster E being arrangedaccordingly.

This embodiment. of'tlie, invention con-L meansH, and type of bolster and, retaining means. In thisconstruction the reinforcing means arein the fo'rmof rigid connecting walls disposed at opposite sides of the ide columns and integrally formed therewit an with the spring'seat, but instead of the outer drawings, but it will be understood, that a similar webis utilized in connection with the other guide column which is not shown in the same manner. In this arrangement the bolster J is of a somewhat difierent type than those heretofore described, such bolster having the abutting lugs 29 entirely omitted therefrom,,being of a width to fit snugly between the guide faces of the guide columns" for sliding movement, the outer end of such bolster being provided with a reduced portion l06 providing a shoulder 107 adapted to abut against the inner side of the web 105. Such reduced end pf the bolster is provided with a keyway 108 adapted "for the reception of a key109 which may be secured-therem in any suitable manner, the ends of the key an additional spring unit 104.in each of them,

templates a modified form of reinforcing explained, and such a key utilized in this the guide columns, since there are no lugs on 0 the bolster to interfere therewith.

In Figuie 9 .is illustrated a construction showing my invention ap lied to the so-called. lateral motion type of truck. In this arrangemeut the compression member, tension member and guide columns, may be of the character wherein additional spring capacity is afforded. The compression member is indicated by the numeral 120, the tension member 121, the guide columns. 122, the spring rest 123, the reinforcing means 124, and the increased springcluster 125, it being understood that'these parts may be similar to any of those above described except the form dis- 124 the )1 lster is necessarily inserted be tween theupper portions of the guide 001- umns-122 in the same manner as heretofore described in connection with the bolsters E and E, and this is permitted by reason of the fact that the bolster is secured after-its insertion by the removable key, as heretofore l m construction is indicated at 130, the key, of course. being attached in a keywaywhich is located at a point so as to permit the longitudinal or endwise movement of the bolster, at the same time preventing the same from being entirely withdrawn from the side frame. 1 Figures 10 to 12, inclusive, illustrate various embodiments of spring plank arrangemotion with the forms of side frames heretofore described, which include the reinforcing means which enclose the spring rest, or partially enclose the same as desired. Referring to Fi 10 the reinforcing or bracing means, hich are similar to that before described, the sanie maybe indicated by,the numeral as designating the outer brace or tie member, and 151 the inner-brace-or tie T member. In thisembodiment ofthe spring 1. plank arrangement, the inner member 151 is provided ,with a continuous slot 152 arranged for the insertion of the spring plank 153 which may be of an ordinary type, having a boss 154 adapted for reception m an' Ill opening 155 provided therefor in thesprmg' rest; the spring cluster of course being arranged tobear thereon to retain the same-m position.

In Figure 11 the mner reinforcing brace corresponding'to 151 in Fig. 10 is entirely omitted to permit the insertion of a spring .pla-nk 156 of an ordinary type,such spring plank being provided with a boss 1'57 ar- 5 ranged to fit within an aperture, 158 provided a tension 161 beneath'the spring rest 162, the

spring rest 162 having an opening therein'as indicated at 163 at the inner side of the tension member. The spring plank 164 is provided with a downturned end 165 adapted to fit over the oppositely turned portion 166 formedon the extension 1611 Disposed upon the spring rest 162 is a spring seat 167 provided with a downwardly turned lug P67 projecting through the opening 163, and a1 ranged to bear upon the turned end 165 of the spring plank 164 to hold the same'in position,.it being understood that the spring seat is held in position by the pressure ex.--

L have been described, and in connection thereerted thereon by the spring clusters In connection with Figures 1 to 4,inclusive,

-7 and 8, it will be observed that I have provided .a greatly increased distance between the guide columns in proportion to the dimens ions of the frame, and 111 conjunction 5 with suchconstruction have provided a bolsterhavilng the pplrtigg which rests u n tge custerwi en tocorrespon tot e c r dfsed extent thereof, such bolster being reduced immediately beyond this portion to 40 rovide ample clearance for the brake beam angers, said bolster being insertible endwise between the upper portionsof the columns and having the usual'lugs' adapted to abut the inner surfaces of the guidejcolumns, the

outer end of the bolster being rovided with the removable key to engage t e outer sides of the 'de columns, thus preventing endwise la of the ,bolster with reference to the side e, but permitting vertical move- 5 ment thereof with the bolster springs.v In both of these constructions, there is utilized the bracing means D formed integrally with the columns, the spring rest and the tension member,-such'means D acting as a combined compression and tension member to reinforce the frame to compensate for the increased length of the sp rest,

The construction shown m Figures 5 and 6 includes guide columns spaced apart a relagb tively great distance in proportion to the dimensions of the frame, in conjunction with the i webs 105 formed integrally with! the columns and with the reinforcin means H in combination with a widened be r adapted to be inserted endwise between the guide columns, the reduced portion of such'bolster abutting against the inner sides of the webs 105, together with a removable key extending through the reduced end of the bolster and arranged to engage the outer sides of the webs. It will be appreciated that by this arrangement, the lugs usually-formed on the inner sideof the bolster td abut against the inner 'de .faces of the' columns may be omitte )thereb permitting the hanger brackets to be posed closely ad'acent to the bolster without interference t erewith ,the webs 105 in the construction descri presenting longitudinal motion of the bolster in both directions, while r'mitting free ver tical movement of the bolster with the spring \cluster. j

' The application of the invention to the lateral motion truck is in Figure 9, and requires no detailed explanation, since the same features of the constructions previousl referred to are utilized in such a truck, it being ,noted that the removable key associated with the bolster is spaced so as to permit longitudinal movement of such bo lrsltler in the grlglixniary manner. t5

e ring 1p arrangemen are es cially' a aptable to the constructions which with it will be observed that the arrangement is such as to rmit eflicient assembl and disassembly 0 the arts, the samem ing securely. heldin position while the trucks are in operation.

Whil 1 have herein shown and described what I now consider the preferred manner of carrying out my invention, the same is merely illustrative, and I contemplate all changes and'modifications that come within the scope of the claims appended hereto.

I claim 1. In a railway truck, thecbmbination with a side frame; "including a compression member, a tension member, guide columns, and a spring rest arranged to support a spring assembly thereon the lower rtions of said guide columns being provi ed with recesses for the accommodation of additional spring elements; at the same, level as said spring assembly, anda bolster of increased width 'arranged to bear upon all of the units of said spring cluster.

2. In a railway truck, thecombination with a sideframe, including a com ression member, a tension member and'gui e columns, the lower portions of said guide columns being provided with recesses for the accommodation of additional spring elements; a bolster of increased width arranged to bear upon all of the units of said sp cluster; and rigid means associated with said side frame to compensate for the increased extent of the side frame parts subject to strain.

In a railway truck, the combination with a side frame, including a compression mem- J her, a tension member and guide columns, the lower portions of s'aidgulde columns being provided with recesses for the accommoda- -tion of additional spring elements; a bolster of increased width arrangedto bear upon all of the units of said spring cluster; and rigid means connecting'the lowe'r portions of said guide columns. 4.. In a railwa truck, the combination with aside frame, inc uding a'compressidn member and a tension member; guide columns spaced apart a relatively great distance proportionmember and guide columns, all integrally formed, said tension member being prpvided with a sprin rest of an extent longitudinally of the side rame, greater than the effective distance between the guide faces of the colso umns, said columns being recessed within said guidefaces for a portion of the height of the colunms to accommodate'part of the spring means.

6. In a railway truck, the combination with 85 a side frame, including a compression member, a tension member, guide columns, and a spring rest, all integrally formed, said guide columns being spaced apart a relatively great distance in proportiomto the dimensions of 40 the side frame, and the lower portions of said guide colum ns being provided with inwardly extendin recesses; a spring cluster con taining t e maximum number of sprin units of any given size which can dispose upon said spring rest, certain of said spring units projected into. said recesses to afford additional space on said spring rest for the insertion of spring units; rigid means connected to the bottom portions of said guide columns and said spring rest to compensate for the increased longitudinal extent of said spring 'rest; a bolster having an end portion of a width adapted to fit snugly between said guide columns and disposed between said'column guides andv bearing upon said spring cluster; and meansfor confining the end of said bolster to vertical movement, said means including removable elements to permit insertion and withdrawal of said bolster end so with respect to said guide columns.

vlded with inwar y disposed extensions adjacent the upper ends thereof ;5a spring as.- sembly on said spring rest; a bolster insertable between said guide columns and having abutments thereon adapted to engage'the inwardly. turned extensions on said columns to limit movement of said' bolster there past;

and detachable means associated with said bolster andadapted to bear upon the outer surfaces ofv said column extensions to limit inward movement of the bolster transversely of the side frame. i

8. In a railway truck, the combination with a side frame including a com ressidn member, a tension member, and guide columns for said frame arranged to provide a flat spring 30 rest between the lower ends of said columns, each of said columns having continuously extending vertical side walls and an offset cross a v wall forming a recess at the lower end ofthe 1 column; of a spring cluster consistin of a 35 plurality of coil springs arranged su stantially-in hexagonal form witli the long axis of said cluster coinciding with the longitudinal axis ofthe side frame, all of said springs being disposed horizontally inthe same planeoo andsupported upon said spring rest, the end springs of said cluster being provided .with clearance due to provision of the recesses in said guide columns.

9. In a railway truck, the combination with 915 a side frame including guide columns each having continuously extending ,vertical' side walls and an ofi'set cross wall forming'a recess at thelower end of the column; of a flat spring rest disposed adjacent the lower ends of said columns; a spring cluster supported by said spring rest and including a plurality 7 of coil springs arrangedin substantially hex-' vagonal form-with several of the springs-disposed along the longitudinal center line of 05 the side frame, the end springs of said cluster being afiorded clearance by the recesses in said columns; and a bolster having a flat end bearing on said springs.

10. In a railwaytruck, the combination with a side frame including a. compression member and a tension member; guide columns for saidframe each having continuously extending vertical side walls and an ofi set cross wall forming a recess at the lower end of the column and a flat spring fest extending between the lower ends of the columns; a cluster'of coil springs disposed upon said spring rest and mcludlngfa central group of springs and end springs disposed substantially along the longitudinal center line of the side frame, all, of said springs being dis osed in a common plane, the endosprings 0 said cluster bemg afiorded clearance by the recesses in the guide columns. 11. "In a railway truck, the combination w1th a side frame including guide columnsand a spr ngrest at the lower ends of said gulde columns, each of said guide columns having continuously extending vertical side no oppositesides of said three springs and in line with the interstices between said three springs. v i 12. In a railway truck, the combination with a side frame including a compression member and a tension member, guide columns each having continuously extending vertical side walls and an offset cross wall'forming a recess at the lower end of the column, and a spring rest at the lower ends of said guide columns, the spring supporting surface ofsaid rest being flat throughout its extent; of a plurality of coil springs supported in a cluster on said spring rest, and all disposed in a common plane, saidcluster being arranged to include a substantially hexagonal forma-.

tion with a central longitudinally extending row of springs; and outer rows of springs,

the latter springs being arranged opposite the interstices between thecentral row of horizontal portion extending from the base of one column to the base of the other and widened inwardlyiof the columns and reinforcing webs on opposite sides of the hori- 'zontal portion integral with the columns and horizontal ortion, said 'webs converging from the widened portion to the columns,

and a group of bolster supporting springs on tween them an opening to receive'an end of said bolster, each tension chord having a flat horizontal portion extending from the base of one column to the base-of the other,and integral reinforcing webs extending upwardly at opposite sides of the horizontal portion and converging to the columns, and a group of bolster supporting springs on said horizontal portion, said roup of springs comrising a central longitudinal row of springs tween said columns, the end-most'springs of which occupy the spaces between said converging webs, other springs of said group being positioned on opposite sides of the central row. I

16. In a railway car truck, a side frame havin' an upper compression chord, a tension c ord havin a central horizontal portion, and incline end portions joining said central portion with the ends of the compresgo springs, the end springs of the central row 4 bein aifordedclearance by the recesses in the =gui e columns} and a bolster engageable with said, guide columns and 'ded thereby, said bolster being provided with a flat bearing sur- 8 face adapted to bear uniformly upon all of the units of said spring cluster/ 13. Ina truck, the combinatio with side frames having a specified wheel ase corresponding to general practice, each side frame 40 having a flat spring seat; of guide columns integrally formed with said side frames and spaced apart a distance corresponding to the eac of said columns extending substantially 45 parallel for the full height thereof and the cross wall having an oflt'set forming a recess at the lower end of the column; an increased number "of spring units of dimensions and capacity corresponding substantially to those so in use ona truck having a wheel base and in columns; and a bolster removably disposed ,between, the guide columns of each said bolster having side members disposed in engagement with opposed sides of said col:

0 14. In a railway aren a bolster, side frameseach having an upper compression chord, a lower tension chord and aced columns connecting said chords an forming between them an opening to'receive an end of r 06 said bolster, each tension chord having a flat -conver 'n length of said spring seat, the side walls of,

zontal portion be' sion chord, upright columnsextending from the ends of the horizontal portion to the cornr'es'sion chord and forming between them 'a lster receiving opening, said horizontal portion having upstanding integral webs to the columns from points spaced inwar y from the columns to strengthen the tension chord at the juncture of the horizontal portion with the inclined end portions, the top face of the horizontal portion contiguous to the, base of each column providin a space on the longitudinal center line of t e frame and between theconverging webs for receiv: ing the end spring of a group of bolster supporting springs, said columns'having inner aces extending to the horizontal s ring supporting portion and inwardly 0 set upper portions forming bolster guides.

17. In a railway car truck, a side frame having an upper compression chord, a tension chord havin a central horizontal portion and incline end rtions joining said central portion-with t eflends of the compression chord, upright columns extending from the ends of the horizontal portion to the compression chord and forming between them a bolster receiving opening, said horiv widened Intermediate the columns andhavmg upstan integral 'webs convergingfrom the wide portion having thereof to the columns and merging into the columns 'to strengthen the tension chord at the juncture ofthe horizontal portion with the inclinedend portions, the top face of the horizontal portion being flat and extending to the base ofthe columns 'between'sthe converging webs to provi'de spring receiving recesses ad acent the columns, said columns having inner faces extending to the horizontal spring supporting portion and inwardly projecting flanges formingbolster guides. f 18. In a railway" car truck, a side frame having an upper compression chord, a tension chord having inclined end portions connected to the ends of the compression chord and a horizontal central spring supporting portion,

and upright columns joining. said chords at the ends of said spring supporting, portion, said spring su porting portion being flat from the base 0 one column to the base of the other and widened intermediate said columns, the juncturev of the horizontal portion with the inclined end portions being reinforced bywebs at opposite sides of the frame joining the columns above the bases thereof to the widened central spring supporting portion inwardly of the columns.

19. In a railway car truck, a side frame an upper compression chord, a ten sion c ord'having inclined end portions con 'nected to the ends of the. compression chord and a horizontal central spring supporting "portion, and uprightcolumns joining said chords atthe'ends of said spring supporting portion, said spring sup orting vportion being'fl'at from the base 0 one column to the 'base of the other and widened intermediate said columns, "the juncture of the Horizontal portion with the inclined end portions being reinforced by webs at opposite sides of the frame ]o1ning the columns above the bases thereof to the widened central spring supporting portion inwardly of the columns, the top face of'the horizontal .portion contiguous to the base of each column providing a space,

on the longitudinal center line of the frame and between the'converging webs for receiving the end spring of a group of bolster supporting springs.

20. In a railway car't'ruck, a bolster, side frames eachv having an upper compression chord, a lower tension chord and spaced columns connecting said chords and forming be tween them an opening to receive an end of said bolster, each tension chord having aflat Q hprizontal portion extending from the base of one column to theb'ase of the other and widened inwardly of the columns and reinforcing webs on opposite sides of the horizintal portion integral with the columns and horizontal rtion, said webs converging from the wi ened portion to thecolumns, and

a group of bolster supporting springs on said horizontal portion, certain springs of said tral line of the side frame, the top face-of the horizontal portion contiguous to the bases of the columns providing spaces on the longitu dinal center line of the side frame between the converging webs for receiving the end springs of said group. v a

21. In a railway car truck, a bolster, side frames each having an upper compression chord, a lower tension chord and spaced vertical columns connecting said 'chord and .inforcing web portions on the horizontal seat and each extending from the edge thereof 1 upwardly and inwardly to the adjacent face of theproximate column; the base of each column and the inner end of the associated inclined portion of the tension chord and the contiguous webs on opposite sides of the associated column merging together within the same region each pair of webs with the associated column and thecontiguous base portion of the flat horizontal seat furnishing a partially enclosed recess at the base of the column for the reception of the end spring of a group of springs arranged along the longitudinal central line of the side frame.

22. In a railway car truck, a bolster, side frames each having an upper COIIIPIBSSIOII,

chord, a lower tension chord and spaced columns connecting said chords, and for-mlng between them an opening to receive an end of said bolster, each tension chord having a flat horizontal portion extending from the base of one'column to the base of the other and widened inwardly of the columns and rein-.

forcing webs on opposite sides of the horizontal portion integral with the columns and horizontal portion, said webs converging from the widenedportion to the columns, a

transverse member extending across the space between @Sfild side frames and Interlocking therewith, 'a group of bolster supportin springs beneath each endof said bolster an holding said transverse member in plaice, roller seats interposed between the uppervend of .each of said spring groups and the bolster,

andbearing rollers between said seats and bolster.

group arranged along the longitudinal cen- 23. In a'r-ailway car truck, a bolster, side frames, each having an n per compression chord, a lower tenslon c 0rd and spaced columns connecting the chords and-forming between them an opening to receive an endof, the bolster, each tension chord havinga flat horizontal portionextending from the base of one column toithe base of the other, said horizontal portion having upstanding integral reinforcing webs converging to and merging into the columns, a group of bolster side frame comprising tension and compression members, spring seating means supported by the tension member, abolster, springs between the bolster and spring seatmg means, and. columns defining a bolster opening and extending from the tension member to the compression member of the side frame, said columns being recessed from said spring seating means upwardly and partially housing certain of said springs.

- 25. In a car truck, the combination of a side frame, comprising tension and compression members, columns defining a bolster opening and extending from,the tension member to the compression member of the side frame, said columns havin vertically disposed recesses in substantia y the longitudi= nal center line of the side frame and between the vertical-sides of the columns,-spring seating means extending into said recesses at the lower ends thereof and providing a horizon- I tal support for the springs in a given plane,

a group of springs supported on said spring seating means with its greatest len th in the lon 'tud inal cente line of the side rame and wit the end spr gs positioned within the recesses of said columns, and a bolster positioned in said bolster opening and supported by all of said springs in the group. 4

26. In a car truck, the combination of aside frame, comprising tension and compression members, columns definin'g a bolster opening and extending from the tension member to the compression member'of the side frame, said columns having an inwardly extending portion at their lower ends on each side of the longitudinal center of the side frame and forming recessesbetween said portions, horizontal spring seating means merging with said inwardly extending portions at the lower ends of the columns and forming the bottom walls of said recesses, a group of springs arranged on said seating imeans 1n a horizontal lane with its greatest length in v the longitu inal'center of said fr ame and with its end springs positioned in said recesses,

and a bolster positioned in said bolster opening and supported by all of said springs.

27. In a car truck, the combination of a side frame comprising a compression member and a tension member having oblique portions, recessed columns connecting said compressionand tension members and defining a bolster ppening, a bolster, spring sup porting means in the same horizontal plane,

with the end springs of saidgroup partially housed therecesses of said columns.

28. In a car truck, the combination of a side frame comprising compression and tension members, columns connecting said'compression'and tension members and defining a bolster opening, the lower portion of each of said columns having a contour defined by a channeled cross section forming vertically disposed recesses for partially housing the end springs ofa group of vertically disposed springs, spring seating means extending into said recesses at the lower ends thereof and arranged to support said group of springs in the same horizontal plane, and a bolster entering said bolster opening between the upper portions of the columns and'supported on said group of springs. 29IA' truck structure comprising a side 'frame having in combination, spaced bolster columns of channel shape in cross section with their open sides facing each other and having a connecting portion at their lower ends having. a substantially horizontal top surface, a plurality of bolster supporting springs supported by said surface, the springs adjacent said columns being disposed at one side throughout their length in the channels of said columns. 2

30. In a railway truck, the combination with a side frame including a compression member and a tension member; guide columns 'forsaid frame arranged to provide a spring rest 'therebetween of increased extent proportionate to the side frame; a spring assembly containing the maximum number of spring units of any given size which can be disposed on sand spring rest, said spring rest being flat throughout its extent, and adapted to accommodate said spring units in a common horizontal plane; a bolster cooperating withsaid side frame and having a flat under surface substantially co-extensive with the area of the spring assembly and adapted to bear against the same, s aid bolster; being insertible endwise between said guide columns *and the side walls .of said bolster being directly engageable with the guidefaces of the 881d guide columns; means associated with said bolster for engagement with said guide columns to confine the bolster end to vertical movement, said means being detachable without destructive effect to permit longitudinal withdrawal of the bolster end from said side frame; and reinforcing means integrally formed with said spring rest and extending upwardly therefrom to reinforce the frame and compensate'for weakness developed due to the greater longitudinal extent of said spring rest, said reinforcing means being integrally formed 'with the lower portions of said'guidecolumns and said tension member. In witness that I claim the foregoing I have hereunto subscribed my name this 7th day of April 1925. I

' CLAYS J. W. CLASEX.

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