US922955A - Steel underframe for railway-cars. - Google Patents

Description

G. B. ROBBINS & W. E. SHARP. STEEL UNDVERFRAME FOR RAILWAY CARS.

APPLICATION FILED MAY 29, 1908.

Patented May 25, 1909.

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lilflQRGlfi l3. ROBBINS, Ob I'HNSDALE, A ND WILLIAM E. SHA RP. OF CHICAGO, ILLINOIS.

STEEL UNDERFRAME FOR RAILWAY-CARS.

Specification of Letters Patent.

Patented May 25, 1909.

Application filed May 29, 1908. Serial No. 435,809;

- To all whom it'mag concern:

Be it known that we, GEORGE B. ROBBINS and VVILLIAM E. SHARP, both citizens of the United States, residing, respectively, at Hinsdale and Chicago, in the county of Cook and State of Illinois,.have invented certain new' and useful Improvements in Steel Underframes for Railway-Cars, of which the followmg is a specification.

V This invention relates to improvements in steel underframes for railway cars, and has fori-ts main object to provide an improved construction in which the steel center sills and draft arms on opposite sides of the body bolster are securely joined to the latter, so as to form a continuous anchorage for the draft gear and running from end td end of the car.

of the draft beams and center sills extending structure.

through the body bolster, and have illustrated and described therein a specific construction in which the connection is secured by a pair of links lying o either side of the draft arms and center si s and anchored to the latter through the medium of keys extending transversely through the draft arms and-center sills and the opposite ends of the links, this construction transmitting both pulling and buffing strains between the draft arms and center sills.

Our present invention embodies a spe ci'fically different construction for effecting the same general result, as related to the transmission of tension or pulling strains.

The invention will be readily understood when considered in connectioi'rwith the accompanying drawing, in which,.

Figure 1 is a top plan view of the complete Fig. 2 is a side elevation of the same. Fig. 3 is an end view of. the same.

Referring to the drawing, '5 indicatesa body-bolster which is herein shown as continuous front side to side of the car.

6 designates each of a pair of center sills herein shown as of outwardly facing channel form, the ends of which abut against the side of the bod y-bolster either directly, as shown, or through the intervention of one or more filler castings, as shown in our pending ap plication on under-frame for railway car's, SerialNo. 400,458, filed January 6, 1908',

l 7 designates each of a pair of steel draftrespectively.

directly-or indirectly abut against the side of the bolster 5.

securely. riveted to the outer sides of the draft arms and center sills, respectively, the transverse outer end walls of said brackets being apertured to receive a pair bf tie-rods 10 that extend through the bolster 5 on either side of the draft-arms and center-sills, The said. tie rods 10 are threaded at their ends to receive nuts 11 and 12, by which said ,tie-rods, through the brackets 8 and 9 secured to the center-sills and draft-arms, constitute a strong tensile bond between the draft-arms and center-sills whereby to transmit pulling strains in either direction between the draft-arms and center sills. To increase the rigidity and. strength of the structure, we also, as herein shown, preferably employ hollow filler castings 13 and 14, the former of which is interposed be tween the two center sills 6, and the latter between the two draft-arms 7, said filler castingsat their inner or closed ends abutting against the sides of the bolster. These filler castings are strongly riveted to the center sills and draft-arms, respectively, as indiarms, also shown as of outwardly facing channel form, the inner ends of which either a 8 and 9 designate bracket castings that are Y cated at 15 and.16.. Overlying the bodybolster and inner ends of the draft-arms and center sills are top and bottom gusset- plates 17 and 18, respectively, these gusset-plates being riveted to thebolster, as indicated at 19, and to the upper and lower sides of the filler castings, as indicated at 20.

It will be seen that by reason of the foregoing construction the draft strains imparted to the draft-arms are transmitted directly to the longitudinal center sills through the brackets 9, tie-rods 10, and brackets 8, thus producingv a practically. continuous 3.1101101.

agefor the draft-gear from end to end of the car, while .at the same time permitting the employment of a continuous body bolster, if

desired, and avoiding shearin strains on the rivets by which the top and bottom plates-15 and 16 are secured to the and to the draft-arms and center-sills! Obviousl ,instead of employing tie-rods threadiussetaolster'i ed at 0th ends with securing nuts, ordinary headed bolts may be used, or any other form of tie-members capableaof securely bonding the brackets 8 an 9 through the bolster so as to transmit pulling strains in either direction.

We claim: V 1. In an underframe construction, the combination with a body-bolster, and draft arms and center-sills abutting against poconnecting said brackets throughthe bolster, substantially as described.

2. .In an underframe construction, the combination with a continuous body-bolster, and draft arms and center sills abutting against opposite sides of said body-bolster, of brackets secured to the adjacent ends of said draft-arms and center sills, and tension members connecting said brackets through the bolster, substantially as described.

3. In an underframe construction, the combination with a body bolster, and draftarms and center sills abuttingoagainst o posit'e sides of said body-bolster, of brac ets securedvto the outer sides of the adjacent ends of said draft-arms and centersills, a d tie-rods connecting said brackets through the bolster, substantially as described.

4. In an underfraine construction, the

combination with a body-bolster, and draftarmsand center-sills abutting against oppo= site sides of said bodybolster, of filler castings between and riveted to said draft-arms and center-sills, res ectively, brackets secured to the outer sides of the ad'acent ends of said draft-arms and center-Si s, and tierods connecting said brackets through the bolster, substantially as described.

5. In an. underframe construction, the combination with a body-bolster, and draftarms and center-sills abutting against oppo- Site sides of said bodybolster, of filler castings between and riveted to said draft-arms and center-sills, res ectively, brackets secured to the outer si es of the adjacent ends of said draft-arms and center-sills, tie-rods connecting said brackets through the bolster, and upper and lower gusset-plates overlying and i'iveted to said bolster and filler castings, substantiall as described.

-GEO GE B. ROBBINS. WILLIAM E. SHARP. Witnesses:

FRANCIS J. MoAssEY, WILLIAM B. CARPENTER.

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