US729160A - Swing-motion truck-frame for railway-cars. - Google Patents

Description

N; 729,150. PAIBNTED MAY '26, 1903'.

J. M. HANSEN;

SWING MOTION TRUCK IRAMR FOR RAILWAY GARS.

` APPLIOATION FILED JAN. 9, 1902.

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UNTTED STATES Patented May 26, 1905i.

PATENT OFFICE,

SWING-MOTION TRUCK-FRAME FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 729,160, dated May 26, 1903.

Application filed January 9, 1902. Serial No. 89,057. (No model.)

To all whom, it 11i/[ty concern:

Be it known that I, JOHN M. HANSEN, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Penn- Sylvania, have invented a certain new and useful Improvement in Swing-Motion Truck- Frames for Railway-Cars, of which the following is a full, clear, and exact description.

In a concurrent application I have shown and described a truck-frame side the upper arch-bar of which consists, essentially, of parallel channel-beams arranged back to back at their ends and spaced apart in hexagonal form at the center and combined with a'lower arch-bar, a tie-bar, and a spring-support in such manner that the springs may be'put on the center line of the frame, and in that application and in another I have shown different applications of the principle of the invention and have illustrated that principle specifically in connection with a truck in which the use of a truck-bolster is rendered unnecessary.

The present invention embodies the same principle of side frame utilized in connection with a truck-bolster to form a truck-frame of the swing-motion type.

In carrying out my invention I use an upper arch-bar, preferably of channel-beams, pressed, rolled, or otherwise produced, united at their ends and spread apart centrally in a substantially hexagonal contour, a lower arch-bar, and a tie-bar where necessary, and these arch-bars are connected by means of vertical column-posts, riveted thereto at top and bottom, and support between these posts and from the upper arch-bar the swing-stirrup in which the. springs are placed and support the bolster upon the ends of the springs. with a limited endwise movement, all as I will proceed now more particularly to set forth and iinally claim.

In the accompanying drawings, illustrating my invention, in the several figures of which like parts are similarly designated, Figure 1 is a top plan view of one-half of a truck constructed in accordance with the present invention. Fig. 2 is a side elevation, and Fig. 3 is a transverse vertical section. Fig. .tis a side elevation of one of the column-posts detached, and Fig. 5 is a top plan view of said post. Fig. 6 is a perspective view of the swing-stirrup. Fig. 7 is a top plan view, and Fig. 8 is a front elevation of a support for the swing-stirrup.

The wheels, axles, boxes, and pedestals,so far as used and herein shown, are and they Inay be of any approved construction.

The sides of the frames are alike, and hence the description of one will sufiice for both. As shown, the upper arch-bar is composed of channel- beams 1 and 2, arranged back to back and in intimate contact at their ends and united at their ends by cover-plates 3, which extend inwardly toward the center and are riveted to the dan ges of the beams. As shown, cavities 4 are made between the meeting portions of the ends of these channel-beams to receive the pedestal-bolts 5. Between these ends the beams divergefrom opposite ends and then have parallel portions between these diverging portions, thus forming a hexagonal figure, and it is preferred to extend the coverplates 3 sufficiently to cover the diverga ing portions of the beams. The lower archB bar 6 may be a at bar bent to shape and"se cured to the meeting ends of the upper archbar, and the tie-bar 7 may be ofany approved construction. The upper and lower archbars and the tie-bar where used are connected by Vertical columnposts 8, the details of which are shown in Figs. 4 and 5, and comprisin g, preferably, pressed-steel shapes each having a top flange 9, byvmeans of which it may be riveted to the anges of the upper arch-bar beams, and a foot-Hange 10, by means of which itmay be riveted to the lower arch-bar, with an intervening vertical web having a central U-shaped longitudinal projection or embossment 1l to stiften and strengthen the same.l The opposite side frames are connected by angle-bars 12, arranged just below the upper arch-bars and riveted by one iiange to the lianges of the arch-bars and by the other ,flange to the column-posts.

The parallel portions of the hexagonal iigure are supplied with cast or otherwise-produced supports 13, (shown in detail in Figs. 7 and 8 and in position in Figs. 1, 2, and 3,) the vertical iianges 14 of these supports being riveted to the webs of the upper arch-bar beams and the horizontal iianges 15 being riveted to the angle-bars 12, and each support is provided with a bearing 16 to receive a bar 17, which is restrained from longitudinal movement by means ofcotter-pins or other devices 18. Upon this bar 17 isA suspended the stirrup or hanger 19, the upper end of which has perforated bosses 2O to receive the bar 17, and this stirrup or hanger projects downwardly through the'space formed by the hexagonal figure of the upper arch-bar. It will be seen, therefore, that this stirrup, hanger, or yoke is adapted to swing laterally of the truck on the bar 17 as a pivot, and to utilize this motion I provide a spring-plank composed of a pair of angle bars or beams 21, extending from side frame to side frame crosswise of the truck, and having a spring-pocket 22 of any approved construction at opposite ends, and there. is provided a bearing-plate 23 on the spring-plank, which centers upon a pivotplate 24, carried by the stirrup 19.

The sides are provided with stops 25, projecting laterally beyond and secured to the inner member of the upper arch-bar, and these stops are vdesigned to come into Contact with the side bearings 26 of the truck-bolster 27, which bolster maybe ofanyapproved construction.

The springs 28 may be of any approved construction.

Thus it will be seen that a truck of the swing-motion type is provided of very simple construction and Verydurable and which permits the arrangement of the springs on the center line of the frame.

It will be observed that the bolster extends under the arch-bar and between it and the bolster-springs, which have their pivotal support approximately in line with the arch-bars, so that the stops whereby the movement of `the bolster is controlled are almost in line with the point of movement of the springplank.

What I claim is- 1. A side' frame, for swing-motion trucks, comprising a pair of channel-beams, united at their ends, back to back, and spaced apart centrally between the ends, and a stirrup, hanger or yoke suspended from said arch-bar within its central space.

2. A side frame, for swing-motion trucks, comprising an upper arch-bar, of channelbeams arranged back to back at their ends and spaced apart centrally between their ends, bearing-pieces secured to the beams Within the aforesaid space, a suspension-bar arranged in said bearings, and a spring stirrup, hanger or yoke applied to said suspension-bar.

3. Aswing-motion truck-frame,comprising side frames, having upper archbars each made with a central space and provided with bearings arranged in said central space, a U- shaped spring stirrup, hanger, or support suspended from said bearings in each side frame, tie-bars connecting the opposite side frames rigidly, a spring-plank, and pivotal connections between said spring-plank and the spring stirrup, hanger or yoke.

4. A side frame, comprising an upper archbar spread apart at its center, a lower archbar, and pressed-steel vertically-embossed column-posts interposed between and rigidly secured to the arch-bars.

5. In a truck,the combination of side frames composed essentiallyof upper and lower archbars, vertically-embossed pressed-steel column-posts interposed between and rigidly secured tothe arch-bars, and transverse tiebars riveted to the upper arch-bars and to the column-posts.

In testimony whereof I have hereunto set my hand this 7th day of January, A. D. 1902.

JOHN M. HANSEN.

Witnesses:

CHAs. F. CHUBB, WM. BIERMAN.

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