US1199845A - Railway-car underframe. - Google Patents

Description

1. H.`WE1SBR0D @L P. M.. BEARD.

AFMLWAY CAR UNDERFRAME. APPLicATioN FILED ocT.5.1915.

`JACOB H. WEISEBROD AND PAUL M. BEARD, 0F ST. LOUIS, MISSOURI, ASSIGNRS TO AMERICAN CAR AND FOUNDRY COMPANY, or sT.

TION OF NEW JERSEY.

LOUIS, MISSOURI, A CORPORA- BAILWAY-GAR UNDERRAME..

Patented Get. 3, 1916.

Application led October 5, 1915. Serial No. 54,182.

full, clear, and exact description,"such` asv will enable others skilled in theart to which it'appertains to make and to use the same,

reference being had to theancoinpanyingr drawings, which illustrate the preferred form of the invention, though it is to be'understood that the invention is not limited to the exact details of construction shownand described, as it is obvious that various modifications thereof will occur to persons skilled in the art. v

In said drawings: Figure lis plan of part of a sill. Fig. 2 is a side elevational view of the parts shown in Fig. 1.` Fig. 3

is a sectional viewthe section being taken on' line 3-3 of Fig. 2. Fig. 4 is a broken sectionalview the section being taken transversely through the top member of our center sill.

The invention relates to improvements in railway car underframes and is intended to facilitate the operation of assembling the parts thereof thereby eflectinggreat economy in the cost of labor employed andl at the same time producing a structure possessing many material advantages over other structures of the same class.

The object of this invention is to provide an eiicient railway car underframe of str uctural shapes adapted to facilitate erection ;and to reduce to a minimum the" cost of lal bor incident thereto.

Underframes of structural shapes,v are ,easily adapted to different. conditions and strength requirements. The ma]or1ty of lcommercial shapes, however, are designed with scant regard to the requirements` of railway construction, this being especlally l true of such shapes as aredesirable for use eting, of several more members than are involved in the 'present sill construction.

Other advantages appear in the description andl drawings.

The center sill construction comprises spaced web portions l; bottom chords 2, and

a combinedl centersill cover plate and top chord` 3, with associated parts hereinafter described. The bottom chords 2, are preferably qfminverted "l"'sha'pe in cross section :asbes't'shown in Fig. 3. Their vertical legs 5, and inturned horizontal legs 6, are preferably relatively thin while the outstanding legs I are relatively thick, the thinner legs being so formed to provide metal of-such 'thicknessthat it may be conveniently perforated in the commonly used unching machines 'and the thicker legs cially adapted to resist-buckling stresses in the sills.

Ordinary rolled commercial T-sections have sloping anges which make them undesirable as chord members in sill construetion, and such commercial T-sections as are .readily obtainable in the open market, of

sufficient section for use as chordmembers being espein such construction, are of substantially uniform section in all of their flanges, thus making the punching of such flanges a diilicult and expensive undertaking.

T-sections of the sectional contour disclosed' inthe drawings permit the elimination of' one member and one row of punched y holes while securing a bottom chord member in a center sill substantially equal' 1n value to tWo commercial angles such as have heretofore been employed.

It is-to be noted that the flanges 5 and 6 are substantially liat throughout the'greater portion of their area and ailord ready connection to sill'webs and the piecessecured thereto. The top chord 3 of the sill is of double channel form inthe preferred section shown in Fig. 3 in which 8 is the relatively thick web portion, -9--9 a pair of offset substantially horizontal'-ilange's formed as extensions of the web but preferably thinner and rising to a higher plane (when positioned as shown) to which flanges 9 floor boards 10 are bolted as shown in Fig, 3 leav- -ing a clear space 11' between the'web 8 and 'L the bottom of such boards for drainage, etc.,

thereby preventing rotting of the boards.

di" flanges 9 are vertically disposed parallelv Formed integral With the web 8 and flanges 12 Which, in the sill construction illustrated, extend parallel with the spaced Webs 1 of said sills and are secured thereto ,by the rows of rivets 13, While the offset ilanges 9 overlap 'the upper edges of said 4ivebs. .113 are longitudinally extending angles 15 '.vvhich, with the similarly disposed angles 16,

Secured to the Webs 1 by the rivets are secured respectively to the top and bottom flanges 17 and 18 of the cross bearers which latter project through coincident openings in the spaced webs of the center sill, and the Webs 19 of said cross bearers are connected to the upper -ends of offset angles 20 by rivets 21, While rivets 22 secure the lower portions of the angles 20 to the Webs 1.

The offset angles 20 provide rigid bracej for the cross bearers in the planes of the a'i-a web portions, inverted ll`shaped bottom chords connected thereto and an integral sill cover plate of inverted channel form having outstanding flanges overlapping the saidweb portions. I

4. In combinationin a car underframe, a center sill construction comprising spaced web portions, angularly disposed'members secured toeach of said Webs, cross bearers projected through said Webs and resting .above some of said members and beingsecured to others of said members at a distance from said Webs.

5. In combination in a'car underframe. a center sill construction comprising spac "d Webs, flanged members connected to said Webs and extending longitudinally thereof, cross 'bearers extending through said webs and being secured to said flanged members,l

gles 15 and 16 and both may be used Without Webs, tension chords and a top cover plate interference of one With the other in assembling the parts. Y

ATo spread and stiffen the sills the 'box pressing 25 or an equivalent casting is preferably employed als shown, `through the flanges 26 of which rivets 22 pass to securer said member in position in alinement with the flanges 2()a of the braces 20 before referred to.

In the preferred construction the top chord extends over ,and beyond the bolsters B at each end of the car and the bottom chords: extend through said bolsters all as shovvn'in Fig. 2 though it is evident that the top and bottom chords, one or all,may be longer or shorter as may be desired.

The modification disclosed in sectional detail in Fig. l possesses the advantage of a thicker web portion S Which may be employed when metal flooring is used in the car.

What We claim is:

l. In combination in a car underframe, a

pair of spaced plate girder center sills the Web of each of which is perforated, a cross bearer projected through said perforations, reinforce members connecting the cross bearer to the Webs of said sills, and connection members secured to said sills and cross bearers intermediate the webs. of said sills andthe reinforce members.

2. In combination in a car underframe, spaced center sills having perforated webs, a cross bearer extending through said Webs, longitudinally extending members connect'- ed to said sill Webs and to said cross bearer, and connection members secured to' said sill webs and 'to the web of said cross bearer in the zone of said longitudinally extendingmembers.

3. In combination in Ia car undertrame, a center sill construction comprising spaced' 'overlapping said 'Webs and comprising a top and a bottom channel portion the flanges of the bottom channel portion being secured to said spaced Webs.

7. In a center sill construction, spaced webs and a connecting cover.plate secured thereto said cover plate comprising vertical and horizontal flanges and a central channel portion.

S. In a center sill construction, spaced webs and a connecting cover plate secured thereto said cover plate comprising vertical and horizontal liangesand a plurality of central channel portions. y

9. In combination in -a car, a center sill comprising a unitary sill cover plate of channel forni in cross section adapted for connection, through some of its flanges, to floor boards which rest in surface contact with said flanges while the portion of said cover plate intermediate said flanges is spaced from `said floor boards.

10. In combination in a car, a center sill cover plate provided at each side with a horizontal flange-.and a vertical flange and an intermediate iveb portion forming with said flanges a plural channel` webs connect- Afed to said vertical flangesand a floor connected to said horizontal flanges said floor being spaced from said web portion. Y

11. In combination in a ear underframe,l a plurality of sillwebs, a cross member extending therethrough, angles extending longitudinally of the Webs and adapted to support said cross member, a compression filler \bet\veen the loiver parts of said webs. and a rolled member overlapping and parallelng vsaid webs and being connected to the. up-

per portions thereof.

12. in combination in a car underf une, spaced sill webs, and a top cover plate connecting said webs, said cover plate in part :.,ioasee paralleling said webs and in part overlapping said webs and a flanged ller inter-- angles, and a filler interposed between the.

lower portions of said spaced web plates.

14. In combination in a` car underframe, spacedv center sill webs, a cross bearer extending continuously f through coincident openings in said webs, longitudinally extending web stitfening members secured thereto., cross bearers extending through Said webs and connected to said stiii'ening mem-V bers, offset braces connecting said sill webs and. said cross bearer and a center sill cover plate connecting said sill webs.

`15. As an article of manufacture, an integral rolled member comprising a web portion terminating in relatively thin offset anges and being provided with a thicker web portion 'and .intermediate angularly disposed flanges said mentioned ianges being respectively adapted to overlap and parallel spaced web plates of a girder.

16. In combination in a car under-frame,

a clenter sill construction comprising spaced We portions7 inverted 'lV-shaped bottom chord members having relatively thin vertical legs lapping and being secured to said web portions and having relatively thick outstanding bottom fianges and means connecting the upper portions of said spaced web portions.

17. In combination in a car sill construction, spaced vertical webs, means connecting said webs, chord members lapping said webs, said chord members having relatively thick portions extending at an angle to said webs and relatively thin portions lapping and being secured to said webs.

18. In combination in a car sill construction, spaced vertical webs, means penetrating and connecting said webs intermediate their top and bottom edges, chord members lapping said-webs, said chord members having relatively thick portions extending at an angle to said webs and relatively thin portions lapping and being secured to said webs.

In witness whereof we have hereunto set our hands m the presence of two wltnesses.

JACOB n. wnrsnnon. PAUL M. miam).

Witnesses:

OSCAR I-IooHBnRG, RonNEr BEDELL.

Sonics of this patent may be obtaine 'ter ilv'e cents each, by addressing the Commissioner of Eat-ente,

Washington, l). G.

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