US1078310A - Underframe. - Google Patents

Description

J. M. ROHLPING.Y

UND'ERFRAMB.

APPLICATION FILED AUG.14. 1912.

Patented Noll, 19131,

4 SHBBTr-SHEET 2.

- ATTORNEY INVENTOR wmwEssE J. M. ROHLFING.

UNDERFRAMB. lPPLIOMION FAILED 11116.14, 1912.

Patented 1101111913.

4 SHEETS-SHEET' 3.

' AT'roRNEv J. M. ROHLFING.

UNDERPRAMB.

y APPLICATION FILED AUG.14, 1912.

Patented 111011141913.

4 s'BBTs-smm 4.

INVENTOR WlTN ESSES ATTORNEY inrentiomthe compression member oll the l casting may be rut away at intervals from Itrnssisvpreferably formed of cimnnercial roller sections provided with a connecting cover plate and is supportedl upon thee-.ist

truss member by means ol' suitable chairs in such manner that compression exerted ngen the rolled section 1s absolutely resisted by the cast truss member bearings or chairs and' compression member comprising` a plurality ol' assembled commercial I rolled sectionswlnch will be described more 1n detail here 'casting comprising in the .main a web 1 extendingfrom one end to the othorof said castings vand provided with a bottom flange 2 extending into the center plates 3 at each end of the castings, which are integral with in l the casting. The center plates 3 carry the king pin socket, and also form a bolster filler and the walls of said Center plates` are supported by an extension of the web 1 of the casting extension beyond the hing.; pin

socket and by radially arranged webs el and by the wall of the lung pin socket.

ter plate 3 is provided with Vertical dautres The een- 5 arranged to be llxed to the inside oi the draft sills 6 and so arranged as to provide a. recess into which the bottom flange; ol the draft sill may fit. A horizontal side liar-.gre i is also provided which is adapted to Isnp` portthe bottoinof the boletf casting,`

At intervals along the casting` are. laterally extending vertical wings l integral with the casting and provided at their outer end with vertical and horizbntal flanges 1()---'l', the Avertical llange begpg in a plane parallel with the web of the casting. rlrheir llanges taken together form' an angle support or bracket and securing means lor the eross` bearers, it will4 be observed that the vertical and horizontal flanges lie inthe saine planes as the bolster securing and suimortiug langge Y. The casting,` or tension member is designed vto be widest at its center and tapered toujardthe bolster as is usual with the aece'pted truss Shape. The upper portion o1 the casting is provided witha horizontal top flange forming 1a support for the onnipres- Sion member, the top of which ,flange er 'tends in the saine plane as the topv of the eenterplate 3, so that the superstructure or thescompression*member may be supported throughout .its length. The web 1, of the the upper portion tbereoil' for lightness and reinlorred by (langes 111V, thereby lim-ming :troni the upper (lange ol lhe tension member, compre Aion member chairs 13 which are supported on the iiortioas of the web which are notent :ir-:ay and which might be termed struts 1": l`ho eonnn'e. yion member com prises a air ol conmmreial eham'ielr sections l5 spared apart and arranged back to back. 'lfhese eimnnereial channel seelions extend through the holsters abutting the ends of the dra liti sill G and with the draft sills form a eontinuous double center sill lrom end to end ot' the ear. These rommerehil sei-tions arel atarhed by their bottom ll: la to the compression nsrmber chairs lil and are secured together at. their top by a eurer plate ie liXed 'to the top flanges l5, said rover plato extends beyond thc bolster toward the end sills and covers a part o'lE and is fixed to the upper llange oli'the dralft sill (l. The dra'l sills t3 entr-ud l'rom the center plate oil:I the r; ingr to the end sills and are adapted to'carry the dra lit gear of the rar. 'lhese sills are. attached to the tension member casting` and the eoinpression member sills by means of angle bars 17 within the said sills. the opstandingY legs of the angle bars .1 ,ndingj yalong; the eimnn'rssion meniber sills` and being 'fixed thereto and the horizonlal llangi'e is adapted lo be liXcd to the tension nuniber casting: i. i, the top ol: the renter plate. llolster castings S are identiral. il taking` two to l'orm a complete bolster and are arranged with a. vertical central web and upper and lower flanges 18 and 1S). lPhe upper side of the bolster dropsl slightly l'ron'l the horilziinal plane at the outer end to proride a bracloxt lor the. Zshaped Side sill E20,

plate 165 an upwardly extending' flange LL lmrinp: a bracing;` web is provided as a side or inside support lor the 'r1-shaped side sill. lhe upper llange 1S ol` .said bolster is provided with a seat Q3 lor the nailingr :drips shown in dotted liurs in Figs. S) and ll). 'lhe web and the upper and lower flanges of .the bolster project beyond [he Z-shaped side sill and are cross braced by a wrlieal web 2l. The lower flange of the holster perforated at its outer lend to ''ariliiate ireting and provided with an integral body side bearing' and with a recess into which the horizontal llange 7 oli the center plate tits." 'lfhe nner end of the rast1 bolster is recessed and the flange 'is arranged in two planes, the one to conform to thev contour of the east tension member and to be aiixod thereto, and the other to contorni to the.eoinpressiou member and to be alliaed thereto. To more rigidly attach the of lan .angle bar 2'7`;`the,upstanding leg of` which `is secuned. tojbejmegside of the side io/wallsof ther-compression/member and `-the horizontal leg tothe top` of the tie plate.

The cross bearers consist of pressedmetal diaphragms 28,y provided with integral surrounding edge Hangers on one side only, and said .cross heal-ersA are tapered 'from the cen- Ater sill -to thesid'e sills-the broader side being adaptetltobe attached tothe-center sills. These cross bearers arevprovided with l a recess fonfthe inner.side,. and the'A flange thereof is atrangedin two planes to iitthe contormationof the center sil-l. Two of these crossl' bearer .sections fonm` a .cross bearer and;Il are interchangeable. Each pair of' cross :bearers is attached toftheyiang'es 10--11 or gbraekets extending from Wings 9 on the casting and also are attachedto the vertical webs 4of the 1channel sections of the compression member. The upper ilanges of. f the lcross bearer .are connected through the .3p

channel'sectiions of the compression member by means of a penetratingtieplate 2.9 which is secured tothe angle bars y(5&0, shown inig. 10, which angle bars are rivetedto the Webs of the channel sections-ot` the compression members.. Theouter ends of theteross bearers are connectedtolthe.Zshaped side sillsby means of taperedA ,angle brackets 31, which are provided -Withinclined reinforcing web and with an .upstanding-iange 32, to which 4latter the Z-shaped side sill =is attached.

vIt will be :observed that the cross .bearers next lthe holsters? y*have --.the anged side' -better resisted.'

l -Another'important fdetail relative to this construction is that the Weight of the car body, the bolster sections and the cross-member' sections Q8, owing to the promoting brackets?) and .the center casting flanges 7,are carried upon the cast tension `member I and exert only a very slight side compression force upon the compression member 'walls 15, should .the car -be submitted to any torsional strains on either-side of the center sill. This is mainly due to the elasticity of the metal of therollcd metal crc-Ss .members 28.

lt Willthenefore be seen that the Whole undert'name is supported by the casttension member and that the relatively elastic compression member is disposed in line to primarily `receive and absorb buiiing shocks.

The .end sills of the car are of usual con-.

struction withthe exception that the diagonal brace .extending from the corner formed by the juncture of the Z-shaped side sills to the corner formed by the juncture of the bol- Ister and center sills are omitted and angle corner plates' and 35 are provided. AThese corner plates have upstanding Hanges for securing the same to theend and side plates and are only .used at thejuncture of the Z-'shaned side sills and the end sills, .and the juncture ofy the center draft sills and the end sills. v

Meanslare provided vfor securing brake Abeamlevers 1n position on the cast metal member,.said means comprising socket-s 3 and clips .3". .Through the clips B and projecting into the sockets .extend pins '36,' which are. adapted to be projected through the usual .pivot bearings in brake levers; and thecotters v36 hold said pins .36 in position.

Byv this .construction the entire lower or tension part of theunderframe is rigid Aor as rigid as cast metal canmake it,.and the b,o1- sters are rigid and every `part is so shaped and arranged .that all compression strains shall be exerted vupon ,a relatively' elastic clement compression -inember .which is rein- :forced and carried by the east `tension member, Yalso every part betvveen'the holsters transmits its Weight tothe cast tension l,member so that the elasticity of the compression member is limited in its vibration ,by the supporting or tension member.

A .point .to be'observed in this device is that .the draft sills and end construction -of the underframe are .composed of rolled sections and light as compared with the main resisting and carryingA tension member so that should any great buiing stress be'.`

brought to bear upon the end sills or end sections, as a collision, it could only "buckle or collapse the end section until themain resisting column or backfbone `was reached. This arrangement practicallyv proteoltsjhe body of the car by sacrificing the platf rm. Such a contingency, however, Would be *are as the end frame construction used in this application is as strong, if lnot stronger, than those in .general use at present.

strains from whatsoever source, are transmitted to a rlgld'supporting tension member The mainlidca of this construction is that Iallv 'and .primarily transmi-tted'in `all directions ,of rolled et'rnr't'nrrial. seet. lln'ienfihe supported by saittsill.

may be substituted tl'zeretor and be eonneeted 1n various ways within the spirit of the present invention.

k2. lin an undertrame terrailroa'd ears,

` sill' eoiiip'i'i;siitg a rast tension member and aeonipression,member composed ot assem- :si-lll comprising a t t1- a eompression member eompowd ot a plu- :bled rolled yeemmereial seetions and transverse .members supported by said sill.

v 3, ln an mulerlfranie :for railroad ears, a

tensi-:in member and rality oli-rolled eonnnereial sections and 'transverse projections extending .trom the bers carried by said proliefttions. l, al. ln an undertrame :tor railway ears, a

, transverse members supi'ierted by said center l east tension member and transverse meni- ,Compound Center sill comprising' a rast len sion member and a compression member leon'iposed oi a plurality ol' rolled seetions,

said eon'lpression member beine' iixed to supported by said tension member and and sill.4

5. ln an umler't'rame tor rail'anyl ears, a eenter sill eomln'isingr a tensifn member ot east metal and ,a hollow rolled metal oompression member and tr: isrerse members supported -by-said center sill.

6.111 an nnderraine, a truss ernter sill comprising,- a plurality ot eommereial rolled sections forming;` the upper ehord of a truss and a frastingi` provided with struts adapted to support the upper chord oi" the truss, forming the lower ehord ot the truss and transverse memlwrs snpported by said renter sill.

7. ln an nmleriranie, a truss center sill comprising a plurality et rolled eommereial sections torniinje,T the. upper chord oi' a truss and aeastinir forming the lower ehord of a truss and transverse members adapted to absorb the strainsI ot torsion and compression connecting; `tl".@members ot -said eenter sill.

8. ln an nmlertraiue, a. ltruss renter sill Comprising a plurality otrolled (,'imimereial sections forming the nppeigehord et a truss and a Cast-ing forming; the lower Chord oli a truss, and'transrerse members eonneetingr the members ot' the central sill, and oonneoted together through the center sill and adapted to absorb thestrains oit the torsion and compression oit' the load above the nnderfral'nen bln an luider-frame, a center sill Comprisme` an integrally east tension member extending beyond the holsters and assent bled rolled,commercial sections forming a end to end of the ear and transverse members ixed to`said Center sill.

lo. ln an underframe, a center sill comprisingan integrally east tension member extending beyond the holsters `and assembled rolled mnnmereial seetionsforming a com- ',pression member andV extending from end to end of the ear, holsters, bolster hearings east integrally with the tension member and projecting from the sides thereof, transverse members intermediate of the holsters and fixed to the said oenter sill.

lll.. ln an. undertrame, a center sill comprising' an integrally east tension member entendingoY beyond the holsters and assembled rolled eon'nnereial sections forming a compression member and extending from end to end ot the ear, holsters, bolster hearings east integrally withsaid tension meinbers and cross bearers and cross bearer brackets cast, integrally vwith the tension member and projecting from the sides thereof. l

12. ln an underframe comprisingl the combination of holsters, and cross members, ot a trussed center sill comprising a Vcompression member formed of a plurality of channel sections anda east tension member formed with an integri-al tlangeas a hearing for said holstersand withl integral brackets as a braeing` for the Gross bearers.

ln an underframe for railway ears, a sill eoniprisini a relatively elast-ie compression member in juxtaposition `lwith a cast rigid tensionl member and transverse members tixed to` said leenstruction.

ll. lin an underframe for railroad ears, in combination witlrside sills. holsters and oross members of ay center sill Comprising a east. tension member supporting the"bolsters and cross bearers, and a eon'lpression member 't` L.ned ot a plurality of rolled Commercial sections in compression between the load above the underframe and the underlrai'ne.

l5. In a ear, an under-trame comprising,r huilt up holsters, a conter silll comprising a Cast tension. member extending!` into and termine' a part of' each of said holsters, and a compression member formed of rolled metal extemlinj.;` through and beyond said holsters at each end of t-he car.

1G. In an nnderfiame, holsters, a truss eenter sill comprising a `Compression member formed of a plurality of rolled commereial sections and a cast tension member formed with a bottom tlange terminating `in proximity tothe holsters and secured at its ends to the compression member and also intermediatev of its length -by struts east integral therewith, side sills and cross bearers connecting said center and side sills. l

1"?. A longitudinal trussed sill for `raileompression member and extending from Way'. ears, comprising a compression meme nogaeio with a flange along` the bottom thereof and Withhorizoirtal integral flanges extending therefrom Aadapted to support the bolstr sections and With vertical .integral Wings eri-- 5f tending' therefrom l,and carrying suitable brackets adapted to support the cross'hearers, side sills supported by and attached to frality of rolled commercial sections, a cast said bolster and cross bearers, draft sills attached to and carried by. said center sills, and end sills attached to and carried by said draft and side sills.

29. l'n an uncleifiaino for railway cars,

the. combination of holsters and draft sills and cross members, of a center sill compris ing' a compression member .tori-ined or" a plutension member extending beyond the bol-- sters, a king pin socket and bolster filler cast integral therewith, the web of the caso ing having,` a I'lange extendingalong the bottom thereofl and having horizontal integral flanges extending therefrom and adapted to support the bolster sections and Vertical Wings extending therefrom and Carry.

ing suitable brackets adapted to support the cross bearers, vertical end tlanges extending' V beyond-the holsters and adapted to support the draft. sills, side sills supported and tixed to said'bolsters and cross bearers and end sills supported and :liXed to said side and draft sills.

.30. `iin underfraine for railway cars, a

center sill comprising a compressionmem- 'reenter' sill comprising a compression inember formed of a plurality of rolled' commercial sections, a cast tension member, a cast bolster provided with an upper and lower flange and a connecting;` web provided with "a Hangeari'anged iii-two planes and adapted to conform to the contour of the center sill and means attached to the bolster sections and extending through the compression members for securing` the bolster sectionstogetl'i'er, crossniembers intermediate ofithe holsters supported by the center sill and side sills and fixed to said cross members and holsters.

32. ln a, car underfranie, a centcr'sill coni prisme; a. compression member formed of a. plurality of rolled commercial sections and a cast tension nieniber, holsters, rolled metal le cross members provided. with an `inclosing' flange the end thereof being arranged in two planes and adapted -to conform to the con tour of the center sill and side sills attached to and carried by said holsters and cross members. `353. ln an underfraniefor railway cars, a

center sill comprising,r a compression ineinber formed of a plurality of rolled commercial sections and a cast tension member,

holsters, rolled metal cross bearers provided with a surrouniiling flange the end section of4 which is arranged in two planes to conform lo the contour of the center sills, a tapered tie-plate attached to the said cross bearers and extending through and being attached to the compression member, side sills led'k tov and carried by said bolster and cross' bearers.

Si.' ln an underfranie for railway cars, :i Se

center sill comprising a compression meinI ber formed of a )luralit of rolled comincr l Y cial sections and :iv-cast tension member, bolsters, rolled metal crossibearers rov'ided` willi a surrounding flange, theen ol? which arranged in vtwo planes to contorni to the contour of the center sill, a tapered 'tie plate attached to the-said cross inei'nbeis, .find extending through andatsection Se i tanned to the compression member,',an angle 9o brace provided with an upstandin on the end of said cross bca-rer and a sido sill. adapted to be attached to and carried by said cross bearer andbolsters.

flange i fln an underfraine for railway carsen center sill formed of'a plurality of rolled commercial sections, a cover plate therefor", a cast tension membei, draft sills supported` ,l by said tension nieinber and secured to/the compression member, the said cover plate extendingy over and being secured to the said draft sills, transverse members, a side; sill supported by said transverse members; l andan end sill supported by said draft and side sills.. i

In witness whereof Ifhave hereunto set my hand in the presence of two Witnesses.

Jona M. noiiiiiiiiiofA Witnesses J'Aiiiis J. Qoornn, Ad Minnnizii.

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