US929630A - Underframe for railway-cars. - Google Patents

Description

o. F. RICE.. UNDERI'RAMB FOR RAILWAY GARS.

APPLICATION FILED FEB. 9, 1909.

f 4 gli( ATTORNEY.

2 SHEETS-SHEET 2.

P l l INVENTOR.. Zgf/a/ZWZM ATTORNEY.

Patented July 27, 1909.

" 313:1) STATES ri-irENr oracion.

CLIFFORD l". RICE, Ol" SPRINGFIELD, MSSACIIUBH'VI'S, ASSIGNUR 'lO WASON MAN UFACI'UR- ING UUMPANY, A CORPORATION 0F MASSACHUSETTS.

' UNDERFRAME FOR` RAILWASQ-CARS.

Specification of Letters Patent.

Patented July 2'?, 1909.

Appncanun fnea Fepntry 9, 1909. serial No. 476,978.

To all whom it 'may concern:

Be it known that l, Cmrrouo F, bien, a

citizen o1 thcllnitcd States ci' America, and

.resident of Springiield, in the county ot' l'lanipden and Stale of Massachusetts, haveA invented certain new and useful Improvements in Umler'fraincs tor Rail\\'ay(lars, ot which the following is a full, clear, and exact description.

This invention relates to improvements in an underframe for a railway car, more especially a street railway car.

An object of the invention is to provide b the use of structural steel of shapes easily o tainable, and the employment of new forms of connections of the parts, a car 'bod under-frame which while unnsuall light, is of great strength and rigidity; and

which requires, by the absence of castings or forgings not only greatly lessened exl pense in manufacture as occasioned by the materials employed but also greatly lessened cost for labor because of the facility with which the parts maybe fitted together and united for the making of the underframe.

Another obgect of the invention is to provide an underframe in which very little transverse space is occupied by the side sills for the greater portion of the height ot the latter whereby even although thc-under frame is but slightly above the top ot the car wheels such -wheels in running around curves` may have capabilities for greater swinging movements than is ordinarily thc case where side sills of the usually wide and deep constructions are employed.

Other objects oi the invention are at-. tained inA and by the constructions, combi nations and arrangements of parts which constitute this invention and which are hereinatter fully land particularly described in conjunction with the accompanying draw# 4ings and set forth in the claims.

1n the drawings Figure l is a top plan View of one end portion of my improved steel undertrainc for ystreet-cars; Fig 2 is a centrallongitndinal section ot' the same on line QMQ, Fig. 1 ,-Fig. 3 is a crossy sectional view taken on line 3 3, Fig. 1; Fig. l a cross sectional vlew taken on line 1 -4, Fig.

1, and Fig. is a similar cross section, but

taken on line .Vr-5, Fig. l; Fig. l is a sew i Fig.

to the other.

'i' is a i,-crs|r.\cti\'c View of the middle 55 )1n-lion oll oney of the transverse. ilona-beanie. in (he drawing-i` 1U indicate the longitudinally exnndinl;y renter sill oi' the car body nnderi'ranxe, which extends lroln end to end ilu-rent, and is tol-ined in onc integral par( vl'roni a steel channetbcani ot thc crossA sectional shape shown in Figs. i lo 5.

12, 12, designate the side-walls which are l'ornied from steel bulb-angle irons or beams, thc depending vertical llanges 13 of which are about double thc width ot' the horizontal flanges 11 thereof. The lower edgecportions of the flanges 13are rounded and reinforced by the bulb-edges 15 formed thereon, and which give increased lateral strength to the said lange, which combined with the beforementioned extra width of thc salue produces a sii'e-sill which is capable ot' resisting the vertical strain of heavy loads.

The center-sill 10 and side sills 19. of the underfranlc are united by the body bolster 1li. The bolster, as ll prefer to construct it, includes a central channel block 17 disposed below the channel shaped center sill, having a centralized upper portion thereof of rcdnced size which lits snugly within the inverted channel ol' the center sill, sco Fig. 4l.

Secured by through-bolts 18 to the centersill 10 and to thc top and bottom faces ot the block 17 are thc upper and lower members 19, 19a of the bolstery truss. These truss members are formed of flat steel bars of a width equal t0 the longitudinal din'lension of the holster-block 17 and extend unbroken from side to side of the under-frame. The opposite end portions of the truss members 19 and 19l1 are united and secured to the nnder side of the side-sill flanges 111 by the bolts 20. The ends of the upper truss member 19 are bent downward at right angles and abut against the inside faces ot' the flanges. 13 ot the side sills 12, thereby imparting` increased lateral strength as well as load sustaining strength to the underframe at such place.

The underframe toward a central part thereof and longitudinally inwardly from the bolster 1G, is provided with, preferably, two transverse Ilbcams or transonis 25, (one thereof being shown in Figs. 1, Q and 5), and which extend unbroken from one sido-sill 1Q.

The end portions of thc transoms are united to the side sills 12 by the saddle blocks QG, to which the end portions of the transoms are riveted and .which in` turn are riveted tov the vertical flanges 13 of the side-sills. rlyhe under-side faces' or the Saddle-blocks 2G have riveted Athereto the struts 27 which form a part of the side-sill truss 28. Thetransoms 25 pass. under the center sill '10 (see Fig. 5) and are secured which also extend, unbroken,

thereto by the rivet-united angle-plates 29. The underframe is further strengthened laterally by the transverse steel door beams 30, from one side--v sill 12 to the other. These door-beams 30 (8 or 10 in number in the length ofv a car) are.

provided at uniformly spaced distances apart throughout the underframe, and are formed of steel angle irons arrangedwith the upper members horizontally, and theirv The ends of the lower members vertically. transverse door beams abut against the vertical flanges 130i the side-sills 12, and the end portions of the top flanges 31 of the said floor beams 30 are riveted to the undersides of the top flanges 14 of the sidesills,y such.

i propelled Street-cars.'

Y 'either lside of the bolster 16gare connectedv "3 to 5. The inverted sill 10 also provides floor beams between their middle center sillengaging portions and' the side sills having slight downward deflections as clearly shown in Fig. 3. The central portion of theverti- 4cal flanges 32 of each floor beam 3() is for a distance equal to the width of the center-sill l0 bent upward to ahorizontal position andinto close contact with the underside of the floor beam flange 3l, as shown at 33 in Figs. 3, 6 and 7', and is secured in this position to the top face of the center-sill 10 vby rivets. The underframe is further braced and sup ported against lateral strains by the pairs of flat steel braces 40 which, as seen in Fig. 17V extend from a point on the center-sill 10 centrally` ofthe underframe'diagonally to each side-sill 10.

The ends of the center and side-sills of the underframe are united andr braced by theA usual end sill 15. K

The downwardly open space 48 yunder the inverted trough shaped channel-beam forining lthe center-sill 10 extendsv in one unbroken length end of the underframe to the other, and provides a convenient and safe storage s ac'e or conduit for the. electric wires 50 lea ing to and -from the motors provided in electrically -t is generally preferred -to maintain and carry the several wires 50 within the space 48 under the center` sill in cablev forni as shown in Figs. channelbeam center-` undcrirame a strong and elticient means for securing thereto the draft-sills' 55- which are riveted to the `center-sill 10, as shown in Figs. 1 and 2.

The two ioor beams 30 adjacent, and at together by longitudinally arranged flat bars 60, which extend parallel to the center -sill from one end sill 45 at one.

at each end of the 12, see Fig. 1. yThe space 62 between the bars G0 and between the ioor beams 30 to which their ends are riveted is not covered by the ilooring of the car, but by la separate cover or trap cess to the motor of the caris assured.

@ne important object attained by the use door, whereby convenient ac`.

of the bulb-angle side-sills 12, before described, is that, in addition-to their strength and power to resist vertical and lateral strains, not possessed by ordinary steel angle beams,=such Vbulb-angle side-sills having the positionsl and relations sliown'in the cross sectional viewsv of the drawings, and by dotted `line indications inthe plan View, Fig. l, a'itord increased Aspace between the opposite sills wherebythe car trucks 65v beneath the underframe may turn on curvesof shorter radius than.would be the case it the underframecomprised the wider and morebulky side-sills as heretofore ordinarily used.

t is to be noted in the construction of the ',underraine Aas particularly represented in Fig. 3, that the tops'of the horizontal in ywardly extending ilanges comprised in the side sills are slightly'higher than the horizontal top or baclrof the center-sill so that when the series of transverse loor beams 30 are connected with the center-sill and with the horizontal iianges of the side-sills, the

tops of the central portions of the iioor beams and the tops of the side-sill center flanges constitute supports all at one level both at the median line and of the underframe for the flooring 69.

1. In an under'fraine of a railway car a longitudinal center-sill constituted by an -inverted channel iron, opposite longitudinal side sills constituted by angle irons coinj prising vertical outwardly disposed side tlanges and horizontal ilanges inwardly extended t'roin'tlie upper portions ot the vcrtical tianges, transverse metallic i'loor beams centrally crossing in contact on the top of the center-sill, having their portions at opposite sides inclined4 and having their extremities engagedunder the inwardly extended hori at the opposite sides Y vertical outwardly disposed side flan' esiiol of the latter slightly downwardly i'it flanges', having their tops slightly higherIy vthan the top of the center sill, transverse metallic tlo'or beams centrally crossing in contact on the top of the center-sill, having their portions atI opposite sides of the latter l and the lower truss member having its inter'- shght'ly downwardly lncllned and havmg mediate portlon engaged under said block their extremities engaged under the inwardly extended horizontal members of angle ironsconstituting the side sills whereby the tops ot' the sideslll horizontal flanges, and of the middle portions of the floor beams constitute a level support for the car flooring, and rivets, or lil-:e fastenings, for uniting the tloor beams centrally to the center-sill and at their' extremities to the side sills.

Il. In an un erframe et' a railway car, a longitudinal center-sill (,-onstituted by an inverted channel iron, opposite longitudinal side sills constituted by angle irons comprising vertical side flanges having each a longitudinally continutms bulb-like enlargement at its lower edge and horizontal flanges inwardly extended from the upper portions of the vertical flanges, transverse floor beams consisting ot' angle irons centrally crossing on and in Contact With the top of the center- -sill and havino their portions at opposite sides thereof s ightly downwardly inclined and having their extremities engaged under the horizontal flange members ot' the sidesills and vertically applied rivets uniting the floor beams centrally to the top member of the center-sill and at their extremities to the side sills. l

'-l. In an under-frame of a railway car a longitudinal center-sill constituted by an inverted channel iron, opposite longitudinal side sills constituted by angle irons compris ing vertical side flanges and horizontal flanges inwardly extended from the upper portions of the vertical flanges, transverse floor beams centrally crossing on and in contactwiththe top of the center-sill and hav- 'ing their extremities engaged in contact against the horizontalmembers of the sidesills, said floor beams being constituted by angle irons having the vertical members thereof at their central portions bent toward, and folded in facewise contact under the horizontal meml'iers, and rivets for uniting the floor beams centrally through the superposed portions thereot' to the back of the fenter-sill, and at' its extremities to the side sills.

5. ln an underlrame ol a railway car, a center-sill composed ot a,longitudinally continuous inverted channel iron, opposite side .sills constituted by angle irons comprising vertical outwardly disposed side flanges and horizontal flanges inwardly extended from the upper lnortions ol:l the vertical flanges, a bolster ci'm'iprising a block having a narrowed upper portion theieotl engaged and tilted under and within the center-sill con stit'uling'channel iron and transversely arrangfjed upper and lower tous members, the upperV one engaging over the top ot' the center -.sill amlhaving its extremities engaged under the horizontal tlanges ol the side sills und havingits portions at opposite sides thereot'` upwardly and outwardly inclined and havingl its extremities engaged under the end portions ol the upper truss under said side Isill horizontal flanges, means tor.-

uniting, at the center ol the structure the center-sill, the said block and intermediate portions ot said truss members, and'rivets connecting the extremities ol said bolster truss membersl with eachother and with the side-sill flanges.

In a railway car undert'ramefa longitudinal continuous inverted channel iron constituting a center-sill, opposite side sills constituted by angle irons havmf outwardly disposed vertical flanges providlad at their lower edges with longitiulinal continuous bulb enlargements, and horizontal flanges inwardly extended trom the upper porti-ons ot' the vertical flanges, a bolster comprising an inverted U-shaped block having lts upper portion narrowed,-and of step-shape, engaged and fitted in the ce'nter sill inverted channel iron, a transverse upper truss member crossing over and in Contact with thetop of the center sill and having its portions near its end engaged under the horizontal. flanges of the side sills and having its extremities downturned in engagement with the inner vertical faces of the side sill flanges and having its ends in engagement with said bulb enlargements, a lower truss member having opposing portions upwardly and outwardly extended and having its extremitics in facewise contact against the portions ot the upper truss member which underlie said side sill horizontal flanges, means for uniting the extremities of the truss membersl to each otlic and to the side. sills, and means t'or uniting at the center ot-t-he structure the center-silh said block and the intermediate portions ot' said truss members.

7. ln a railway car underframe', a longitudinal center sill constituted by an inverted channel iron, opposite longitudinal side sills constituted by angle irons having' their ver tical members outwardly disposed and their horizontal flanges inwardly extended from the tops otl said vertical members, transverse metallic lloor beams centrally crossing in contact on the top ot' the center sill and united thereto and having their extremities connected with the horizontal flanges ot' the side sills, a bolster comprising a block, the upper portion of which is engaged within the inverted trough-shaped center sill, and upper and lower truss members, one crossing` over lhe'center sill and theother under said block and having their extremities converged aud connected to the side sills, means lor uniting, at the center ol the structure, the said bloclt, the bolster trussmembers and centi-:r sill, and one or more transversely arllt) ranged transom beams under andy centrally connected to the center sill and saddle blocks secured to the verticalianges of the side sills and to which the extremities oi the irons arranged as described and constituting side sills, metallic transverse floor beams crossing by the middle portions on the top of the center-sill and united thereto and having their extremities connected under the hori zontal flanges of the side sills, seddle bloeks connected to the lower portions of the side sill flanges, transom bers transversely ex- *tending from one side sill to the other; end- Wise supported on and connected to said saddle blocks und intermediately connected v to the center-sill below which it is disp0sed,.

truss rods connected to the side sills and extending below the saddle blocks and struts connected with and depending below the suddle blocks and with which said truss rods are engaged Signed by me at Springlield, Mass., in l presence of two subscribing Witnesses.

CLIFFQRD F. RICE. Witnesses 'Gn R. DRIsCoLL, WM. S. BnLLu/s.

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