US824437A - Side frame for railway-car trucks. - Google Patents

Description

PATENTED JUNE 26, 1906.`

0( S. PULLIAM. SIDE FRAME FOR RAILWAY GAR TRUCKS APPLIQATION FILED JAN.19, 1906'l 2 SHEBTB-SHBET 1.

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[7-206757@ @Pza Zwam ZM/Zf IIAAI PATENTED JUNE 26, v1906.

0. S. PULLIAM.- SIDB FRAME FOR RAILWAY GAR TRUCKS.

APPLICATION FILED JAN. 19, 1906.

2 SHEETS-SHEET 2.

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OSIV ALD S. PUIi-LIAM, OF PITTSBURG, PENNSYLVANIA.

SIDE FAME Fon' RAILWAY-CAR TRUCKS..

vSpecification of Letters Patent.

Patented J une 26, 1906.

Application filed January 19, 1906. Serial No. 296.775.

.To all zywm it may concern:

Be it known that I, OswALD S. PULLIAM,'a citizen of the United States, residing in the city of Pittsburg, in the count of Allegheny and State of Pennsylvania, lieve invented certain new and useful Improvements in Side Frames for Railway-Car Trucks, of which the following isa full, clear, and exact description, reference being had to the accom- 1piianying drawings, forming part of this specication.

My invention relates to cast-metal side frames for railway-car trucks; and it has for its object to rovide for the reinforcement of frames of tiiis description by the use of worked metallic reinforcing members which have the character of safety parts and which may be more dependently relied on; due to their being less subject to defects thancast metal. These reinforcing members also resist'tendency of the cast-metal structure to break under strain and also provide for the temporary support of the load borne by the side fraines ,in a railway-car in the event of breakage or fracture of the cast metal frames. Figure I is a side elevation of one of my reinforced-side frames. Fi II is a vertical section taken on line II IIg, Fig. I. Fi III is a side elevation of a portion of a side Frame of modified construction and showing my reinforcing member incorporated therein. Fig. is a top or plan view of a side frame and brace-bars by which a air of said frames are united.. Fig. V is a side elevation with ortions in vertical section of another modification of my side frame.' Fig. VI is' a vertical section taken on line VI VI, Fig. V.

. The side frame shown in Figs. I and II consists of a to chord 1, `a web 2, abolsterpocket 3, a lbottom chord 4, and axle-box pockets 5, the said axle-box pockets being closed at their 'u per ends and open at -their lower ends. 6 esignates a metal reinforcg-bar that is of worked metal and may be of either wrought or rolled iron or rolled steel. The reinforcing-bar extends longitudinally of the bottom chord 4 of the side frame proper, to which it is bolted or otherwise secured at intervals, and it serves while reinforcing and bracing the members of the side frame proper to also-close the lower ends of the axle-box ockets 5 for the purpose of confinin the aide-boxes ofthe car-truck in said poc ets.. The side frame, as illustrated in Figs; I and II, has the axle-box pockets of sufficient height to accommodate the axleboxes that enterthereinto andalso to accommodate springs surmounting said boxes and located between their top surfaces and the upper ends of the pockets.

The side frame shown in Fig. III corresponds to that in Figs. I and II in construction, with the exce tion that the axle-box pockets are made ofP a size sufficient only to receive the axle-boxes, and when this form of frame is used the springs above the boxes are omitted.

In Figs. IV to VI, inclusive, I have illustrated a modification of my side frame and reinforcingbar associated therewith. In this modification the side frame properv consists of a top chord 1, bolster-columns 2', truss members 3', and a bottom chord 4. The top chord is reinforced by a rib 1a, and the bottom chord is provided withflanges 7.

6 designates the reinforcing-bar, by which the side frame roper is reinforced in the same manner as t e side frame previouslydescribed, the bar 6 being of the same nature as the bar 6-viz.,` being of greater tensile strength than the cast frame proper. This vreinforcing-bar is connected to the ends of the side frame by vertical bolts 9 and also connected to the bottom chord of the side frame by bolts 10. Interposed between` the arch-bar and bottom chord of the side frame are rolled-metal tie-bars l1, that unite pairs of the side frames at opposite sides of-the car to which they are app ied, thesetie-bars being provided with upturned lips 12, that engage the bottom chord of the side frame, as seen most clearly in Figs. II and III. A side frame constructed in accordance withmy improvement is readily made and affords great strength to resist any strain to which it may be subjected, and by providing the rolled-metal tie-bars to unite the pairs of side frames and furnishing said bars with upturned lips to en hold the frames in t at all times.

I claim- 1. A side frame proper for car-trucks consisting of an inte al casting having axle-box pockets open at t eir lower ends, and a rolledmetal reinforcing-bar secured to the bottom e same relative positions of said casting and extending continuouslyv from end to end thereof ends of said pockets, forth.

2. The combination with a pair of cast-f and across the open substantially as set age the frames Isecurely IOO vIrc:

metal side frames, of renorcng-bars se- Cured to said 'ames and formin arts therof; and tie-bars connecting sai lrames ad having their ends held between said frames and said renocug-bas, substantially' as set forth.

3. The combination With a pair of castmetal 'side frales, of reinforcing-bars secured to said frames and forming parts thereof, and

tie-bars connecting said frames and having lo their endsheld between said frames and said renforcingbavrs; said reinforcing-bars terminating in lips envsgingsad side frames, substantially as set orth. OSWALD S. EULLIAM. Inpresence o 1 AUGUSTUS STUMP,

JOHN BmGHT.

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