US1215766A

US1215766A - Truck-bolster construction.

Info

Publication number: US1215766A
Application number: US82752314A
Authority: US
Inventors: Samuel A Benner
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-03-27
Filing date: 1914-03-27
Publication date: 1917-02-13
Anticipated expiration: 1934-02-13

Description

S .-A,"BENNER. A 'TRUCK BOLSTER CONSTRUCTION.

APPLICATIDN .FILED rIAR. 1,914.

.Erw

WITN ESSES.

S. A. B'ENNER.-

TRUCKBULS-TER CONSTRUCTION.

APPLICATION min umu., 1914.

1,215,766. Patgnmd Fen-13,1917,

, Y A a SHEETS- suur 2f.

fw/M, 5 707%;TMZ/- S` A. BENNER. 'TRUCK IHOLSTER CONSTRUCTION.

APPLICATION FILED TIAR- 21.11914.

Patented 111,113,191?. 4

3 SHEETS-SHEET 3.

FIG. 22.

iNvE'NTOR. n

wsmzssas. f

UNITED 'STATES SAM'UEL A. BENNER. OF FITTSBUBGH. PENNSYLVANIA.-

ITRUCK-BOLS'iR CONSTRUCTION,

Application led March 27, 1914.

To au 1li/mm t may nonccrrt:

le it known that. I h'iuila. xian, a ritizcrr rl the United States. and resident. olf littsluire'h. in the county ol .Uhghcny anilHtaic ol' Pennsylvania. have invented a new and usel'ul luiprm'cnn-ui in rl'rlu'liv llolstcr (`onslr|u.i.ions: und l do hereby |c- Clare the l'ollowin; r lo lie a lull, clear, and exact d csrriplion thereof.

My invention relates to improrcnwnts in car holsters and is partirularl)l concerned with construction of a bolster which may he made cuiirel)l ol. rolled or ln'esscd sclrtions olE metal.` The primary object is to (,-onstruct the compression and tension .members cach of wrought integral sections.

A further object is to ronstruct a holster of this character which will possess the' greatest possible' strength for the *amount of metal used. This is primal-ihy aceom plished h 'v produeing the eou'ipression and tension members lrom special' sections rolled on a structural guide mill instead of a plate mill, thus obtaining thickness or tliinness of material where 4.lesired 1 Alu rtlu-r object 'is to so construct. arrange and sei-.ure the parts of' the bolster together, that the compression and tension members will be united or riveted together along or near the lines of neutral strain of the bolster.

".lh'at is 'to say, along lines interinediate of.

the lines ol greatest compression strain on the oni` hand, and of' greatest tension .strain ou the other. 'l'hcse lines, ol' voul'sc. may be rcalil \v (lelerlnlned b v those skilled in the art of nieial constructions. p I

A l'urthcr object'- is toso construct thc holster that the allaclnniut ol thc renter and' side bearing` plates will serve to secure the iarts of the com uession melilla-r awainst :L

`bolster body.

AA ,fui-then object is to so constrln't the sectlons which form the tension and compression members of the \bolster. that they will present the greatest possible strength 'along thelines of ,greatest i'-on'1]n'ess|oual and tenslona] r-nn. f l

Serial No` 827.523.

further object is to so reinforce the sides of' the 4bolster as lo insure rigiilitliY against lati-ral bendiiranil twisting strains on the holster.

-.\ l'urther object is to so `onslrnct and ar-.li

Specification of Letters PatentA P31( "ted FPI). '13,1917- With these objects in view, the invention drawings, in which figured is a side elevation of a bolster ailajlted for use on .fi forty to fifty ton car. the'bolstcr shown in l"ig:..1. tional yiew on the liieil-. Fig. l; Fig.-i

p is a sectional. View on the line 4.-1, Fig. if; Fig. 5 is a View corespondingr to Fig. et, showingr a n'iodilied f( rm ot' the construction;

'Fig'. isa view eo 'responding to Fig. 4, showingn z furthern odilieation. and Fig. 7 is a scrtioi'lal View ciirres|mmlingl to the section l-2. .Figi i. illustrating lnmliiea-4 tions of thc' .foi-ins o-t' the rol-led Sectionsemployed asthe eoiuiression and. tension members ol a.lmlst r before said sections have had their rein Forcilng` flanges V(tutor sheaired ti-ijiinished'lorln. Fig. S is a` ceutral-i'ertieal'. section of the' rolled sections shown inFigx. 7. i Iigr. J is a View eorrespending` to Fig. 7. showing a -ur'ther' modi- 'laiion ofthe bolstir sections;V Fi 'I0-is a 'seulionalTi'ir-w cor nespondingg; toV tie seeliou Fig.' Soi' the members shown in Fig. S). Fig. Il `isja plan riew of'a blank for the compression-nlenilu-r of a holster with wide ends and imi-rowccm er intended lfor u sixty Fig.' i! is a planI View of. Fig. 3 1s a se`c' to seventy.tonfcnig dum-ing title." manner n"` which, the lateral j einforeing flungesand the central` web are sheared or eut away prim-'to hendingthe section to bolster shape. f Fig'. 'l2 is a plan view of a bolster in which` a. section similar to that showninFig. 11

is emploi-'ed as the compression member.

tional view Fig. 13 is a side elevation of the bolster sliownfin Fig.v 12. Fig. 14- is a central sec- 15 is an end sectional view on the line 16-46, Fig. 12. Fig. .lli is a perspective and partial sectional view ot' a central reinforcing and king pin socket forming member for the compression member of ythe bolster. Fig. l7is a perspective view of a modified forni of king pinsocket. Fig. 18 is a side elevation of aniodication of the holsters of4 the forms shown in Figs. 1 to 13, respectively;

Fig. 19 is a view showlng two bolstermembers used together as which the blankshown in 'body and truck holsters, respectiv'ely. F ig.

.20 is a Alongitudinal section of the bolster shown in Fig. .13. Fig 21 is a perspective View of therolled or wrought section from Which the fish .belly Compression member is formed.'v Fig. 22 illustrates the steps by F ig. 21 is pressed into islrbelly shape. Fig. 23 is a view of a modifiedform of blank for a king-pin socket and Fig. 2 4 is a perspective view in section showing the completed form of said socket. In the modification Aof the4 invention illus trated; in Figs. .1 'to 4 inclusive.. the bolster consists primarilycf two rolled sections, 4namely, the upper section l forming the compressionY member and the lower section 2,

- the tension member. .In the compression of' 'the bolsterfconsists lcss Thelower edges of'the indicated l at "id-6, Fig.

member in-the form illustrated in these 4figures, the rolled section comprises (Figi 3), a'web 3 and the side-walls- 4-4. 'At the junction ofthe web and Fig. 2, are 'sheared away at 6-#6 near the ends 'of thetbolster, thus leaving lateral reinforcing. members lextending'. throughout the main portion ofthe bolster to withstand lat ing off of the endsof these flanges reduces the extremities of the bolster to substantially j the. proper Width 'to b'e received within the 45 pedestal .opening oi the truck siile-^f|r=ixnessidewalls fig-4 ot these compression sections :irepjovided with Vinturned flanges '7-7- vand with outivardly 4' extending' -fianges 8'8 ,V the extremities of the latter being also sheared in the manner 2, for the Afianges 5-45. Thevange' 7-'j i at 7 '+7, as the flanges y nish Sufficient lateral strength at the mid- -portj'on ofthe b( lster.v The tension member primarily of a rolled section Whichyasoriginally rolled ,is of the chnnetshapeshovvn-in Fig. 2,1, andfpro- -vided wi'thateral Wings or flanges-.and wi-th .a longitudinal thickened strengthening, por- 'tion 9. "This chnelsection isfthenplaced in a press andtheends thereof are forced up or attencd", as

surplusfm'etalfat. 10G- 71.05 is sheared oi on on the line 15-l5, Fig. 12. Fig.

side walls are lateral Hanges5`5. These-flanges, as illustrated in.

.movementof said. members.

culiar Y:.idvantage `in a bolster construction l ay also be slieared A 5 -5 and 8- 48 furlshown in Figs. 3 and Afianges 5 of the compression meinb'e `ber for the bolster. l 16 are similarly` riveted tothe .orm ffurther reinforcing members.- invention illustrated in shown in Fig. 22, and thetra] fish-bellied shape shown in side ele# rati-on in Fig. 1, the end elevationin Fig. 3, the transverse sectional view-shown in Fig. 4, and as in perspective in Fig. 22. Thus the tension member comprises at opposite extremities, cross section have the 'shape shown in sectional View" in Fig. 3, including the thickcned portion 9, which is received between the intu-frned flanges 7-7 of the compression member and 'the thinner lateral ed es of which extend beneath said fianges 7.- and as at 10-'10, beneath the out-turned flanges 8-8 of the compression member. The outer edges of the wings 'or flanges of the tension member are cut away et the opposite eX- tremities inthe same manner as the fianges .7L-5, and of the compression member at (3, Fig. 2, thus making the ends ofthe bolster of uniform width throughout the depth thereof. The outer edges or ianges 10--10 of the tension member are riveted to the fianges 548l of the compression member as at -11 andthe thinner portions of the web of the tension member are riveted atthe 0pposit'e ends of the bolster to the iiiturned anges`7-f of the compression ,member as the fiat portions which in shown at 12, F'g. 3. Thus it Willbe seen the compression and tension aresubJected to the leastV amount of relative where the strains are particularly severe.'

The thickened portion 9 ofthe web of the tension vmember .presents a. particularlv strong construction at the ends ot the bolster lnfessure of, the bolster springs, and Ithis sln'engt--lris cnhmiced bv ttor receiving the the presence ot' the flanges 7 to which; the web of tho tension member 1s secured.v This thickened portion 9 moreover. since it exltends along-.the bottom of the fishbelly poi-l This is of per.

tion Av'of ,the tension member, reiiif'oices'tlie-i" sarne along the lines of greatest teiilsi'o'iial strain.

The ends of the bolster are provided pedestal guide plates 13, having the vertical ribs 14 which'engage the side-Walls fO, 'pedestal opening. These plates friaA .readily riveted'througli the sidew `a`l1so vthe with bolster. The bolster is 'also providen the usual center bearing.plateljvhiclifas 4f, rivete this Vprovides a transverse reinforcing 4mem-` In' the f orm of the to theA The Sidebearipg plates fianges 5 and Fig. I?, that-enten portion oli the interior ol the holster muy hv, provided with :t trnnsi vorst: strengthening.' pluto I7. riveted :tt 1S to the intim-ned (hinges 7 olf the eonnnjossion ine'rnher, to prervnt spread of thv,4 holster i body :it theeenter.v l

In the l'orni ol' the invention -illnstrnted in l"i; f. (3,thv voxnprvssion rnvnxhvr muy eon sist ofn rollvd svetion simihlr to that, l ,1 |l'l tolrorv, dvserihvd. hul.. without 'the in-turnvd flanLfvs 7. ln this (msn thv ont-tnrnvd llnne'vs lurnvd llengvs l() of the tension mvlnhvr nrv not sheirrvd :lwzrr on thelines fl :xs shown in Fig. 2. hut oxtnd ont to tlleyvnds ,olthv ,holst'vlz With this form of' holstvr`r ol' course, n, pedvstal must hv. used having1r its i sullivivnb width to rvveire thvl lnll width oll thvr holster vnds, including thvsv llzlujlvs.

Thv nnrrowvr or holstvr-hearing portion of thvy puh-stal, howvrvr, need only he wide 'enough torvevivv thv, width ofthv holster ends including the 'wvnring plntvs ll. :1nd

"holly nur v hv, notched opposite the vnds ol l i thi-sv, wvnriuglr plntvs. i ".ln `thv l'orni oll the invention illustrsltvd `in`-l"i; rs. 7, 8, fl und A1 (L the compression mvmhvr. of the holstvr is of the sume forni :is that illustrated in Fig. (l, hut showing.r modifienm'emlmr. Thus, for exu'nlplefin Figs. 7 nnd S, the wehis thickened :it 1f) throughout thv width eonili'ri'snd hvtween the side-walls 2() of `thv tvnsion section. T11 Figs. 9 :md l0, thv wvh 2l is ofthe same thickness :is the ,-sidv-'wnlls 22. Y

i fl`hv yconstruction heretofore dvserihvd, und us shown in Wills. l to G inclusive. is in tvndvd prinnuilyY ,I'o'r usv in holsters for [from l-ortv lo lill)J ton vars. lt is to hv nnl|vrs1fnn|.'ol` roursv. lunrnrvr, that thvsv (eolistru'vlions nurr hv so in odilivd :und `strengthvnvd :is to-:ulzip'l thvni l'or hvurier vnrs.

ln Figs".V I I to l'tninrlnsilrm .is illnstrntvd n frmstrluzlion ol' holstvr vwhivh is :ulapt'vil priniurill\" -l'or use in hvzlrivr vnrswsny rol' ".ip'fieit)Y l'rolu sixty to serontv tons or orvr'` 'with- \\"iyl,v'r vnds to provide gr'vntvr hearingr lilrvsrlor :in increase. in the nnnlhvr ol" "springs on whivh thv ends of thv, holster rust. lnJFigr. Vll is illustrated in yplan View n, rolled sswlion -rorijvspondingr in struetnro to the f zzoniprvssion s vvtidn shown in Figjfhllt pl'vfvrnhly" o l' `Inrfivr dimensions und olA 'hvnrivr nmvlfiiiil. 'lhis" svvtion oolnln'isvs thv i\-(h.."o haringthv. upper sido flanges ff2`lf--1ll, sidv-\\.llls Ilz, "lowerin-turned 60 flanges 25?.. und lowvr out-turned flanges Hf-HIC 'Fhvsel uppvr outvr flanges 31, :and `-lowvr 4otvr lllngt-.s llllll', :mi shouted olf along the lilies L34', hack to the side-walls 32; thus reducing the ends of the holsterjsecf tion to :t `width suitable to he received withbolster-reeelvingr opening at the bottom, ol'` 'tionsrin thv lorui of the wel) of the tension inthe holster opvnii r of thv truclt pedestal. The in-Iurnvd'lungvs {l2} nre also sheu'red :muy on linvsjltlfm-l-l :is hervinhefore desrrihvd. ,'l`hv wel; ltlmltl, is slottvd Uncut :lwny :is :it 255 `'or l'hv purpose olf pvr|nitlin;r 4ihv rvntrnl porion oli the colnprvssioul nu-nrhvr ol' thv holst r-to he comprvssvd lat ernlly or drown togivther. as illnstrnted yin Fig. l2.. \\'hvn so t rnwn togethvr thv s id'vwalls ol' thv vornprvs sion menihvr after comprvssion. vonsist ol' nd portions :l2 standing :it thv originn'l dist: ucv apart. internwdintv voluprvssvd portion.` lf, ivhihjoin the (rvutrnl eoniprvssvd ptt-tions 3T of tht.` sidewnlls with thv un olnprvssvd vnds. Thv nmin purposv ol' si omprvssing thv evntrol portion yol' th(l eoinprvssion menlhvr is to bring: thvV ontvl' ndg'vs of .tho flanges 3L wlthin thv, width yol" n stuud"rd'eentvr henring-plntv slu'h :1r-f HH. so thnt the vdgvs of this pluto muy -ho rirvlvd :is :it lflthroligh these lungxvs Ill. :is show i. llilivwisv, this coi f prvssion hrings thv ridlh within thv dimension ol' thv stnndnrdsiilv 'lu-:wing7 plu-tes 4U whivh :Hfolikvw'isv ri\"vtvd :it 4l to thv limgvs Ill. This vmstruvtiorrhns thv ndvzuitng'i-tllzlt thv smuring in plzivv' of the vvnlvrilnd sidv hvnring! plzitvs svi-rvs to hold thv sidvsol thv vom n'vssion Invnrhvr ngninst spreading. l`urtlw|norv` innsnlnvh :is ih v f cdgvs of thv evntvr plntv'nnd the vnds ol' the side plntvs extv ul out orvr :ind :Irv sv sidv :1nd is thus'fnrrilitntvdplutvs muy he easily rvfplucvd. Y v

'lhe tension xnvrnl vr in [his eonstrmztlon is A lsdl hrolivn ol' lish-hvllyslrnpmnt is narrower in cross svelion tlntn thv `v|uls -oli the compression invinhvr, in ordvr u hiking the side-wells 42 ol smid tension. rnviihvr directly under' the vonirm-tei'l `portion Il? olthexside-wnlls 32 ol' thv vonuirvssionnivmher throughgintthe vvnirul portion o'4 t 1v holster, where fthe ef- 'l`v :l,ol thv vouiprvsaion and tension strains 'isurfrvntvsh This (vnsion section is proridvd with lntvrzil llnngvs t-ll which, inten-l lnvdizllo thv vnds ol thv holster, :uv riveted :ls nt ll, to ih viviipvwd portions of the (ioni- 'prvssiou invnlhvr llnngrvs 51', whervus at, the ends'ol thv. holstvr, the thitend portions of thv tvnsion. nivlnhv' 'nre riveted :1s-nt 445'# Iiigs. 13 and 15, to the inturned'iflln'ges 3?- olfthv A(,:o'niln'essior invinhvnl ',l`hus`1git is posshleto rirvt. or svvurv thv, ornpresfslrm und tension lnvulhvl s ol' the holst'vr together` :dontIF ljnvs at or nml' the lin'vs of nentugtl oornprvssion :rnd tvnsion sti-:lifts onthref'lolI slvr. tvnsion strains such as exist :1t und to either sidv olf'the hmgitndital conter of the` holster,

1t is ohriol'u: thzit oomprvssion 'ail'l'tl Y 125 sinne relation t0 thi bolster structure-et the 'opposite ends Vsince the, a ends are directly f supported on the 'h1 lster' springs. The teillsion member is provided with a-thickened longitudinal portion 45, I n throughoutv its length and at its ends is re` ceived between the edges of the inturnedA compression section flanges 33. By this construction, as in the construction previously described, the tension member is strongest along the lines of greatest tension strain. The oppositeends of the bolster are' provided with pedestal guide and wearing plates 46, riveted directly to and through the side-Walls 32 of the compression member as'at 47. i f Y Thus is produced a bolster for heavy tonnage cars which is of the required Width at the ends to fit the greater Width of the bolster'i'ece'iving opening of heavy tonnage side frame pedestals and at; the same time,y the bolster is referably, in its general outg linef, of su stantially uniform Width throughout'and so constructed as to possess an ample margin of safety at the cen'- ter against all twisting and compression and tension strains.

In orderthat the weight .on the bolster may be carried equally by the flat end `portions 44 ofthe tension member and the web 3() of the compression member, reinforcing lmembers vor diaphragms, such as short I- beam sections 48, are secured Within the endsof the bolster. `The flanges of these I-beam sections may be riveted 4t'o the Web -30 of the compression memberand the flat I' end portions 44 ofv the tension member.

`While I have described these reinforcing members as I-beam sections, it is obvious that they may be of other' form,for eX- ample, simpleA channel sections, or box-like In order to strengthen and bind together the central portions of the side-walls of the compression member, and at the saine time to provide a socket or 'pocket for the reception' of the lower end of the king bolt, -provide a structure of the character A shown 'inzFigz' 16, which consists of a channel por.

tio'nhaving the base 49,' side-Walls 50, lateral flanges 51', and dependiiig'securing wings v52,

'formed preferably as continuations of the Hanges 51.V The channel portionv of this'.

member extends 4{ a'referably transversely of the lbolster and the depending Wings 52 'are rivete'dto the simile-wills 32 of the comprs-i sion membeas at 53. vWVithin .this channel- 'member and before it is secured Within the compression member of the bolster, I secure short vertical channel members each com- 'prising aweb 54, '..zxd thefianges 55.. yThe latter-'are securerlfto the side-walls 50 of thev device aslfat 56, thus forming iny e'ect with the channel member, a 'pocket or' socket for thejreception of the king pin. If desired, Ja cylindrical sleeve or bushing may be secured yin this pocket or socket tosnugly surround andfirmly hold the king pin which extends lthrough the perforations 68.

against wabbling. As an alternative construction' of the' king pin socket, to that just described, the same may be constructed as shown in Fig. 17, and ma .comprise a l'channel member consisting o the web 57,

side-Walls 58, horizontal-win 59 and depending wings'60, which devlce'may besec' 'red within the compression member; as shown in said figure, with the channel portin extending longitudinally instead, of t ansversely to said member. Short chanel sections simila'r to those before decribed, and each consisting of a web 61 j nd side-flanges 62 may be secured vWithin uthe channel portion of the device, to cominstead of rolled sections.

In Figs. 23 and 24:is illustrated a st ill ifurthermodilication of the kin pin socket. In thiscase this socket may be ormed a vdisk 63 by spinning down 4a socket portion63 in the center in somewhat the saine manner and on. the same 'character'of mathe lines 64 and the end portions 65 are then bent down along lines 66 at right angles, as shown' iny Fig. 24, andthe 'extremities of these end portions are sheared/oif, straight as at 67. The socket member so ,I ormed is riveted to the side walls of the "bolster ile I have described this socket member asv formed from a' circular disk, it is obvious that the same form of socket iynberv may be spun from a blank ofsquar or oblong shape.

In Fig. 1 9 two

similar A'bolster members

69 and 70 are ill'st'rated of the fish-belly 'form fand construction heretofore described, but -equipped'to' be used together' as a body Vbolster (inthe one hand anda truck bolster thef other.' In this case, the body bolster isprovided. with the side bearingmembers or plates 71 and acenter plate 72, While the truck bolsteris lprovided w'i'th the side bearing members 173 and center bearing plate 74.1 Also this truck bolster is provided with recent,

-vchine as is used for spinning wrought car Wheels; The blank is then sheared along thepedestal guide plates 7 5. As shown4 in I F1g..20, the truck bolster and in fact both the .body and 'truck bolster, ma'y be `provided atv the ends with th'e transverse strengthening beams or'members 76.

-In..the form of -the invention illustrated in Fig. 18 the bolster-may consist of comia's l presslon member and tension' memberfhav-l nig their flanges united by the flr'iy'etgs 77 suhtantial-ly Sibe'fore deseribed, but this holster'- mayim Yfurther strengthened it?` dev sred hy ylie-ml'ing tht.l compression and te n' sionmemhers upwardly as at 78 to form in 5 Veffect, `a more o'l' less arch-like eonstruetion. Itlis ohyious that this arol'retnistruetion may apply either to a' holster of the. eharaeter Figs. 1; to 4, or that shown in holster' eoniprisini; ,an integr-.tl rolled stef-1"'compression menthol' insisting of a top. weh with outwardly openingrelran 5 ml' 'i|urn1l t`'rs extending' jaloiaer either edge' thereof, :1nd anintegra'l rolled steel tension member of ishflielly .shape haring lattened 'ends seeured to' the ends of saidl e'lranuel members land haring thin-ges intermediate 3o its ends seenred to the lower tlanges nl said ehannelmember @t 2, X. ear holster eoniln'ising,r an integral rolled steel eolhpression memher eonsistiing,r got, `ato p :,.5 f-.Lrannehi' rin-1V andjan integra-l rolled steel tension iiiemlrer olifish `lN-,Ilr .sli-apezl i,a\ing f i flattened einlstseeured to the lower flanges of Said elnlnliel tiielnliers .ind vharing `lateral flanges intermediate of its ends alsoset-nred ,.I. ear.bolsterlxonrprising a erunpression `inemlier eonsistingof a si glo rollettseetion haring a l'iorizontal 4wen and' outwardly opening 'ehannelVftu'lned side wallsgand a V.f'fvtit ,lillV-shape.haring llattenerlends seem-ed o thmextremities of 4said channel @members aiul-"liaring 'out-.turned"flanges in- 50 termediatei of its' ends riveted to the lower .-'outltirrned :flanges'olsaid f'hannel members.

'4b A car. holster eozmprising afeompressiou xnenilier" non ting of :i single rolled seetion lutti/nge horizontal'topaieh and outwardly jlfatteled ends seem-ed to 4the `lower flanges Lai-5,766

ihed the particular structures of the v lioi'icontall welr and Vside walls of fand said lateral vout-turnedflanges of Vfard side walls ofthe side wallsgot'4 the efom gire n sa'id lateral flanges lwingrittetttl to-*tl .rut'tfturned 1ljanges 4ol* said, `sxdetra l v- ,Alinear bolster corntn'isng a ernnpressioe; m berfvcollisisting of a rolled section of v "..iatn'nel form., the web of. said section being extended into lateral tl lnges extending ontwardly throughout 'the length of said section. the outer edges of the sirlewvallsiif `aid set-tion haring` intl rned and out-turned Ilangesthroughout the engtl'rth'ereof, and a 70 tension memher consist ng off a rolled channel seetion havingr a thickened portion'ex tending longitudinally throughout,4 v lthe length of the, weh theleof, said s eeti'on'being pressed intermediate its ends to'lishzbelly 75 shape learingthttA end portions and lateral outturned tlanges extending tlnmigliout-the length of Athe serrtionvs lid end portions and llangeslieing riveted to the llangesvat the outer edges ol'. thel sido` walls of sailleom-V 3g pression memlu-r. t'. rar holster comprising impression member eonsisting. of a `rolled seetiou voff ehunnel form, the web of said-y Vetion lieiilg extended into lateral flanges extending ventfy g5 wardly 'throughout ltht` length of saidpseetion, the outer edges of the side Valls haring. y iuturnerl and out-turned flangesthroutthout the length thereof. and a tension member rfonsisting of a rol-led eliannel sect-ion `hariw.y 90 a thiekened. portion 'gxtending longitudinally throughout the, length of the" wel);` thereof. said set-tion living pressed intermw diate it.` ends .to'ish he ly shape, leafvingllat end portions and laterali out-turned' ttla `ges95 extending tl'irrmghout the length ofthe seetion. said'llatend port ions being llivrebdfto* the inturnedllanges :1t-the 'onteredgesfhf the side `trails .tth'e compression` member4 anges being `rivetedito1tle 100 eompression chamber.

' t. 'ear holster com )risinga eoinpression -memher fronsisting of a' 'rolled Section of Vehannel ffm-ln, the'weh of'sui'd' Sec O'bjllg A105 extended into lateral t anges extending dutwardlr thromglmut thff'lengthhof saidscff" tion` the outer edges 'of the side'xvalls having intim-mal Vand .out-ttnnerl' flanges'throughout 4the length thereg'it". al d. a tension member 110 consisting of a rolled! e. ia nnelseetio' hav a thiekened r|-mr'to`n extending loi ."'ti nally throughout the `leng'zth of tllewle'4 diafte its endsto fislrlft llv shape, ]earing-*flat 115.-

endportion's `and latelal ont-turned fl'a'n'p; extentlingr'throimhont the h'lngztlrol 'thetion; saidflat end i por itmsjlieil'rg rivet( the inturmdllangesat theonit'er ,ed-ges "f-tli'e oittssidei'llitnges of the etnniression'-rnelnlit" dier extended into lateral flanges extendin outwardly throughout the length of sai sectlon, thefouter edges of the Side walls having` inturned and out-turned flangesintermediate itsends.' to fish bel -the web thereof, said Section being pressed shape,

Aleaving flat endportions and lateral outturned flanges extendingr throughout the length of the section, said flat end portions being riveted to the inturned flanges at the `outer edges of the side walls of the con.- pression member and said lateral flanges belng riveted to the out-turned flanges of said si e walls, said outside flanges of the compression member and the flattened ends of the tension member being sheared off vflush with t e side walls ofthe compression member at he ends of the bolster, and pedestal guide plates secured to the opposite sides of the ends respectivelg7 of the bolster.

9. A car holster'eomprising a eonfi'iression member consisting of an inverted channel shaped rolled section having flanges project` ing laterallyl from the-.top plate or web thereof, a tension' member consisting of a rolled section of'` fish belly shape secured to the lower edges of the walls of the compression member, a center bearing plate and side bea-ring plates riveted to saidflanges of. the

compression member. whereby the bolster is strengthened against spreading of' the vside walls thereof.

10. A car bolster comprising an integral rolled steel compression member formed of an inverted channel shape having channel sides and a tension member consisting of a rolled. section depressed intermediate its ends to fish belly shape and havinglateral out-turned flanges adapted to be' riveted to the out-turned flanges of the compression member, whereby the junction lines of. said members will be at or-near the neutral line of compression and tension strains. j

11.. A carbolster comprising an integral rolled steel compression member formed of an invertedchannel shape having channel sides an'd a tension member consistingoft a rolledv section depressed intermediate its ends to fish belly shape and having lateral out-turned flanges adapted to be riveted to the out-turned flanges of thecompression member, whereby the Junction lines of said members will be at or near the neutral line a lof compression and tension strains, the flat ends of said tension member being trimmed tothe width ofthe ends of the compression member and secured to the lower .edges of the side walls of saidcompression member.

12. A car bolster comprising a compression memberformed of an inverted rolled channel section, having flanges laterally-ex'n tending from the web thereof, and having flanges extending both outwardl and inwardly from the lower edges o lthe side walls of the compression member.

13. A car bolster com rising an inverted rolled channel section, liaving flanges laterally extending fro the web thereof, and having flanges extendin both outwardly and inwardly' from the lwer edges of the side walls, thereof, 'and struts secured to and extending` down the side walls of the bolster to prevent lateral spreading thereof.

14. A car bolster comprising an inverted channel shaped rolled section, and a tension. member comprising a rolled section ha ving,r its central portion depressed into fish belly form, a strengthening rib formed integrally with and extending longitudinally of the center of said tension member, the ends' and side walls of said tension member being secured respectively to the ends and side walls of said compression. member.

15. A car bolster comprising a4 compression member consisting of a top web withl outwardly opening channel members extending along either side and a .tension member of fish belly shape having flattened ends secured to the ends of said channel members and having flanges intermediate Vits ends secured to the lower flanges of said channel members, and a center bearing plate extendin across the central portion of said bol.ster,an having its lateral edges securedt'o the edges thereof and raking pin socket and reinforclng member interposed between. the side .walls of said compression member beneath the center plate, and secured-.tosaid side walls.

16. A car bolster vcomprising a compression member consisting ofv a top web with outwardly opening channel members extend- `ing along either side, and atension member of'fish belly shape having flattened ends secured to the ends of said channel members and having flanges intermediate its-ends secured to the lower flanges of said channel members; and a 'king pin socket and bolster reinforcing member formed" of a channel shaped rolled section secured tothe side walls of the compression member. beneath the center. plate, said king pin member having dla- ,phragms secured within its channel forming a socket for the reception of the ciid ofthe king pin. l

intermediate its ends, whereby the side walls will be closer to ether in the .middle of the 'bolster-.than at t e ends of the bolster.

flanges 'at the lowef' edges of its side walls, the web ofsaid section being'slotted along its longitudinal center'intermediate the ends,

,said out-turned flanges'being sheared ofl' adjacent the ends/ of saidl section, said sectlon being laterally' contracted intermediate its ends, whereby the side walls will be, ,1'0

closer'together -infthe middle `of vthe bolster than vatthe ends of the bolster.

I 25. A bolster. com rising. a compression menberfcon'sisting o an inverted channel shaped rolled sectlon having the web laterally extended into cut-turned flanges and having out-turned flanges at the lower edges of its side walls, the' web of'said lsection'I being 'slotted along its longitudinal center intermediate theends,v said out- `turned flanges being shearedl oflv adjacent the ends of said section, said section'being laterally contracted intermediate its ends whereby the body portion thereof, including the unsheared portions of said flanges, will be brought to a width equal to substantially the width of the .shea-'red ends/and substantially equal to the width of/sfstandard center plate, and a 'center plate and side bearing i plates riveted to :the unsheared portions of the out-turned flanges of the web of the ine termedi'ate portion of said section.

- intermediate the ends, r l

flanges being sheared off adjacent the ends 26.1A bolster comprising a compression member cons1st1n of an inverted channel shaped rolled sect1on having the web later- 'allyr extended into out-turned flanges and having out-turned flanges at thel lower ed es of its side walls, the, web of said section being slotted along its longitudinalc'enter intermediate the ends, e flanges being sheared off adjacent the ends of said section, said section being laterally contracted intermediate its ends whereby the bodyportion thereof, including 'the .unsheared portions of said 'flanges will be brought to a' width eq-ual to substantially the width of the sheared ends and substan- ,tially equaLto the width of-la standard center plate,A and a center plate andside bearing.v plates riveted to the -unsheared portions 'of the out-turned flanges of the web of the intermediate portion of said section', and pedestal wearing plates secured to the side walls of said section, adjacent the ends thereof. .i

27. A` bolster comprising'. a compression member',l consisting of an inverted channel shaped rolled sect1on having `its web laterally extended into out-turned flanges and .having out-.turned flanges at the lower edges of its side walls, the-web of said section being slottedv along its longitudinal center said out-turned of said sectlon, said section being laterally said out-turned.

brought to a width substantially equal to the width of a standard center plate, and. forming box-like ends of properwidth to be received within the bolster opening of a truck side frame, and whereby a center bearing plate and side bearing plates ofstandard dimensions may be' secured to the. un-

- sheared portions of the flanges of the web of said section. 28. A bolster -comprising a compression member consisting of an inverted channely 'shaped rolled section havingI out-turned flanges 'at the lower edges of.its side walls, the web of, said section being slotted. along its longitudinal center' intermediate the endsyfsaid out-turned flanges being s'heared oflYA adjacent the ends of said section, said 'section` being laterally contracted intermediate-its ends, whereby the body portion thereof, including theY unsheared portions of said flanges, .will be brought to a width substantially equal vtothe width of the sheared ends and substantially equal to the width of a standard center plate, and a-tension member formed of a flat rolled section depressed to fish belly shape intermediate its ends and having flat ends adapted to be secured to the out-turned flanges of the' side walls of the compression member at the ends thereof, and `having out-turned flanges adapted to be secured to the'` 'out-turned flanges at the lower edges of the'centra] portions of said side Walls.

29. A bolster comprising acompression member, consisting of an inverted channel shaped rolledsection having out-turned flanges at the lower edges of its side walls, the web of said section being slotted along loo its longitudinal center intermediate the ends,

said out-turned flanges being 'sheared ofll adjacent the ends of said section, said section` l y being laterally contracted intermediate. its

ends, whereby the lside wallsof the body portion thereof will be .closer together in the middle of the bolster than at its ends', and reinforcing diaphragms secured to the web' of said compression' member adjacent theellds of said section to form reinforcements'to.

receive the thrust of the bolster springs. p

30. A" bolster .comprising a compression member, consisting of an inverted channel shapedrolled" section 'having-out-turned flanges at the lower edges o f its side walls, the web of said section being slotted along it-slongitudinal `center intermediate the ends, said ,out-turned flanges being 'sheared oil" adjacentthe ends of said-section, said section being laterally yont'l fcted intermediate its ends, whereby the body portion thereof,

including the unsheared portions of Said flanges, will be'brought to a width substan- .I l I pressedy shape leaving tially` equal to the width ofl sheared ends and substantially `equalto the width of astandard center plateand a king pin socketv sion member formed of an invertcdchannel A shaped rolled section having its central portion laterally contracted to the width of a standard center plate, and a tensiony mem-` ber formed of a rolled section having its central portion depressed to fish belly shape,

said tension mem er at its central portion beingi of la width corresponding to the contracted portion of the compression member and having flat ends flared to correspond in pression member, said tension member being secured to thelower4 edges of the yside .Walls of said compression member. 4

32. A car bolster .comprising an rolled steel compression member consisting of a top web with outwardly opening chan- K nelf membersextending along either edge thereof, and an integral rolled steel tension member of fish belly shape having flattened ends secured ,to the endsof said channel members vand having flanges intermediate Bl its endssec'ured to the lower flanges of said channel members, reinforcing diaphragms located within the ends of said bolster and secured to the ytop web-of the compression member and to uthe flattened ends of the tension member. i f

33. A carbolster comprising a compression member consisting of a rolled section of channel form, the web of said section being extended into lateral flanges extending outwardly` throughout the length of said sec-- tion, the outer edges of the side walls ofv said section having inturned and out-turned flanges throughout the length thereof, and a tension member consisting of a rolled channel section having a thickened portion i extendin longitudinally throughout the length o the web thereof, said section being intermediate its ends to fish belly flat end portions and lateral out-turned flanges extending throughout the length ofthe section, said. end portions and flanges being riveted to the flanges at the outer edges of the side walls of said compression member, reinforcing diaphragms located within the ends of said bolster and secured to the top web of the compression member and to the flattened ends of the tension member.` l

B4- A. car bolster comprising an integral rolled steel Icompression member consisting of a top web with outwardly opening channel `members extending along' either edge.

thereof and an integralrolled steel ten mon member of fish belly shape having flattened ends. securedto the ends -lof said channel integral within the ends of' said bolster and secured to the' top web'of the cnnpressionmember and to the flattened elkds of the tension y member. 1 o

35. A car bolster con prising a compression member consisting of a rolled section o f channel form, the we) of said section being extended into laterzl flanges extending outwardly throughout the length of said sectiom the outer edge:` of the side walls `havlng inturned and out-turned flanges throughout the length shereof, anda tens1on member consistingy ofa rolled channel section havmg a tliickeiiedportion extend- `inglongitudinally throt ghout the length of the web'thereof, said section being pressedy intermediate its ends` 1o fish belly shape,

leaving" flat end portio as` and lateral outturned flanges extending.. throughout the length of the section, ss id flat end portions beingV riveted to the `intirned flanges at the outer edges of the sido walls of `the compression member and said lateral flanges being riveted to the o1 lt-turnedv flanges of` said side walls ofthe campression member,

reinforcing diaphragm located within the ends of said..l bolster and secured to the top web of the compression member, Iand to the flattened ends of the teision member.

3G. A. compression member for a car bolster consisting of a single rolled sectionV of channel form, the web of which has lateral extensions forming flanges outside of the side-walls of said se ztion, said side walls having wings o1.' flanges at their4 outer edges,

thus forming laterally opening channel sides.

37. A compression 'nember for a car bolster consisting of a single rolledy section of channel :foi-1n, whose` web has lateral extens-mnsA forming flangz outside of the side walls of said section, seid side walls at both sides of their edges opposite the base web having lateral wings or flanges forming with the side walls and base web, and base web lateral extensions, side members of substantially I-beam` form 38. A tension member for a ,car bolster formed of a single rolled channel section having lateral wings at the edges of its flanges and iaviingA a thickened strengtl'lening portion nally throughout the length of the web, said section intermediate its ends being pressed "to fish belly shape, whereby said strengthening member forms a strengthening chord throughout the fish belly por` tion of said section. f

extending longitudi- 39. Atension meml er for a car bolster 1z0 Y3F `is desired.

consisting of a single rolled channel sec'- tion having lateral wings at the outer edges of 'its Hanges and 'having a thickened strengthening portionnextending longitudinally throughout thelength of the web,

said section eing pressed to fish belly shape intermediate its ends, leaving flattened ends and laterally extending flanges for securing said section to the compression member lf of a car bolster, said thickened portion' forming aV strengthening chord throughout the length. of said section including the depressed fish belly portion thereof.

40. A tension member for a car bolsterl consisting of `a single rolled` channel section having vlateral' wings at the :outer edges of its flanges and having a thickened strengthening portion extending longitudinally' throughout the length of ,the

web,v said section being pressed tollsh belly shape lintermediate its ends, leaving flattened ends and laterally extending flanges for securing saidsectin to the compression member of a car bolster, said thickened por tion forming astrengtheningchord through` out the length of said section including the' depressed fish belly portion thereof, the sidev edges of said section being trimmed atthe endstoxbring the section to Whatever' width 41. A king pin receiving .and bolster re- 'inforcin member consisting-of a rolled section of c iannel vform havmgmembers ada-pted to be secured to the inner side of the side Walls of a hollow bolster, said channel portion'dhavng diaphragms secured btherein' to Vform a socket for the `reception 'of the lower end of the kingpin.

42. A carpart, comprisin rolled. steel compression mem `1', consisting of a top web with outwardly opening chanc nel members extending along either edge thereof, and an integral rolled steel tension member of fish belly shape having flattened ends secured to the ends of, said channel members and having flan es intermediate said endsv secured 'to the ower flanges of said channel member. A g.

43. A, car part, comprising anintegral rolled" steel compression member, consisting of a to horizontal web and side walls of channel` orm and anintegral rolled steel tension member of fish belly ,-shape,'having" flattened ends secured to the lowerfA flanges of said channel members, and hai'ing'lateral flanges 'intermediateof its endsalso 'an integralv secured to Vthe,lo\ver flanges'of said channel members.

Y 44. A Acar part consisting of a single rolled section of channel form, thc web of which has lateral extensions forming flanges outside of the vside wallsI of `said section, Y

said side wallsrhavingl wings or flanges at theirv outer edges, thus forming laterally yopening channel sides.

- In testimony whereohl the` SAMUEL A. BENNER have hereunto my hand.

sAMUEnA. isaNNEafV Y JOHN F. WILL, J. Ksmmn.