US722298A - Truck-frame for railway-cars. - Google Patents

Description

PATENTBD MAR. 10, 1903-. J. Mv. HANSEN. TRUCK FRAME FOR RAILWAYl GARS.

2 SHEET-SHEBT l APPLIOATIDN FILED JAN. 9. 1902.

No MODEL.

N`.'722,298. PATENTED MAR. l0, 1903. J. M. HANSEN. TRUCK. FRAME POR RAILWAY GARS. APPLIOATION Hmm JAN. 9.1902. No nonni.. 2 SHEETS-sansa: a.

l l I l lrllnslilpllll UNiTnn STATES PATENT FFICE.

JOHN M. HANSEN, OF PITTSBURG, PENNSYLVANIA.

TRUCK-FRAME FOR RAILWAY-CARS.

PECIFICATION forming part of Letters Patent No. v722,298, dated March 10, 1903.

Application filed .Tannary 9,1902. Serial No. 89,053. (No model.)

To @ZZ whom t may concern..-

Be it known that I, JOHN M. HANSEN, a citizen of theUnited States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a certain new `and usefullmprovement in Truck-Frames for Railway-Cars, (Case A,) of which the following is a full, clear, and exact description.

This invention relates to metal truck-frames for railway-cars.

In carrying out my invention I use an upper arch-bar of channel metal, rolled, pressed, or otherwise formed, and a lower arch-bar of flat metal, rigidly secured at its ends to the upper arch-bar, and a tie-bar of any approved construction. Centrally between these archbars is the stirrup or spring-hanger, preferably made of pressed steel, riveted to the arch-bars and provided with chafing-plates and with a spring-seat, the two side frames thus constituted being connected by anglebars arranged at the bottom of the stirrup and extending from side to side crosswise ot the frame. Brake-hanger supports, preferably of pressed steel, are riveted to the stirrup.

Having thus stated the principle of my invention, I will proceed now to describe the best mode in which I have contemplated applying that principle and then will particularly point out and distinctly claim the part, improvement, or combination which I claim as my invention.

In the accompanying drawings, illustrating my invention, in the several figures of which like parts are similarly designated, Figure 1 is a half plan view and partial section of one side of a truck-frame. Fig. 2 is a side elevation with portion of the left-hand side in section. Fig. 3 is a vertical longitudinal section, on a larger scale, taken through the spring-hanger and showing a preferred form of truck-bolster in position. Fig. 4 is a side elevation, and Fig. 5 is a vertical cross-section, illustrating my invention in connection with the well-known Barber roller-sprin g support.

Since both side frames are alike, a description of one will suffice.

lis the upper arch-bar, made of channel metal, rolled or pressed, or otherwise produced, and bent to standard shape.

2 is the lower arch-bar, preferably of flat vmetaLseoured at its ends to the upper archbar, as by riveting, and with or without a reinforcing-plate 3, and 4 is the tie-bar.

The spring stirrup or hanger 5 is a U- shaped piece, preferably of pressed steel and having a vertical embossment 6 on each side, substantially as indicated in Fig. 1, in order to stiifen it, and also having flanged upper ends 7 to afford considerable surface contact with the upper arch-bar and riveted to such upper arch-bar and having a continuous bottom 8, which is flat to conform to the flat portion of the lower arch-bar. 9 represents chafing plates arranged on the inside of this U-shaped stirrup or hanger and riveted to it.

10 represents angle-bars rolled or pressed, riveted tothe lower portions of the stirrup and extending transversely from one side to the other of the truck to unite said sides..

The horizontal flanges of these angle-bars rest upon the bottom of the stirrup, and rivets 11 are used to unite solidly these horizontal portions of the angle-bars, the stil-rups, the lower arch-bar, and the tie-bar. `A spring-seat 12 is also riveted in the lower portion of lthe stirrup or hanger, and its outer edge 13 is flanged downwardly, while its inner edge 14 is flanged upwardly, as shown more particularly in Fig. 3. This spring-seat may be of one piece, or it may be of two pieces and of pressed steel or other material, and upon it is arranged the nest of springs 15.

Instead of using a spring-seat of the character just described I may substitute for it the well-known Barber roller, as shown in Figs. 4 and 5.

The stirrup is extended laterally, as shown more especially in Figs. l, 3, and 5, toward the center' of the truck, and to these eXtensions are secured the brake-hanger supports 17, which also may be made of pressed steel.

I have shown in Fig. 3 a truck-bolster 18 of approved construction, same forming the subject of a separate application.

The formation of the spring stirrup or hanger with the U-shaped vertical embossments gives a sti column with a minimum amount of material, and the riveting of the spring stirrup or hanger to the top and bottom arch-bars and to the tie-bar aords a solid connection between top and bottom members of the truck side and obviates the necessity for the use of column-posts and bolts. They union of the two sides of the truck-frame by means of the two angle-bars admits of great liexibility when the truck is rounding a curve. The facing of the stirrups on the inside with the chaing-plates protects such stirrups from undue wear.

By means of the construction described there is great depth between the top and bottom arch-bars, so that there is plenty of room for the application of the Barber roller and other like devices favored by individual users.

It will be noted that a minimum number of parts is required for the construction of a truck-frame of this type and all castings have been avoided. The frame is a solid riveted structure, and the rattling and shaking, which are the primary causes of wear in truckframes, is done away with, and yet the truck possesses great flexibility. No column-posts or bolts are used, and hence the objection of the shearingoif of these boltsis overcome. The brake-hanger supports are riveted to the stirrup, as described, and hence there is virtually one piece, which takes the place of the column-posts, bolts, spring-seat, and brakehanger-carrier supports.

Still another advantage of my construction is that the lateral forces are taken up by both the top and bottom arch-bars, whereas in m'any other constructions the bottom archbar must sustain almost entirely these forces until the bolster comes to a positive stop against the top arch-bar.

Atruck constructed in accordance with this invention is of comparatively light weight, very simple, and its cost greatly reduced.

I do not limit my invention to the employment of an upper arch-bar of channel form or lower arch-bar of iat metal and reserve the right to vary the formation of these members to suit individual requirements; but I prefer the construction shown and described.

l. A truck-frame side composed of an upper arch-bar and a lower arch-bar united at their ends, combined with a spring stirrup or hanger of U shape having its upper and lower portions connected to the upper and lower arch-bars respectively by rigid independent connections.

2. A truck-frame side comprising top and bottom arch-bars, the former of channel form, combined with an interposed spring stirrup or hanger of U shape, having riveting-flanges at the ends and having Vertical embossments extending along the sides of the hanger to the flanges.

3. A truck-frame side comprising top and bottom arch-bars, the former of channel form, combined with an interposed spring stirrup or hanger of U shape independently united at top and bottom with respective arch-bars having vertical embossments and provided with inner chang-plates lixed to the sides of the stirrup opposite the embossments.

4. A truck-frame side having in combination therewith, a spring stirrup or hanger of U shape, the sides thereof being provided with inward extensions adapted to serve as brake-hanger supports.

5. A truck-frame side having in combination therewith, a spring stirrup or hanger of U shape, the sides being provided with inward extensions adapted to serve as brakehanger supports, the sides of the hanger having vertical embossments.

6. A truck-frame side, composed of upper and lower arch-bars united at their ends, the lower arch-bar having a straight or approximately straight middle portion combined with a U-shaped spring stirrup or hanger, having its closed end attened so as to have a good bearing on the lower arch-bar and riveted thereto and the upper ends of the stirrup provided with ianges riveted to the upper archbar, substantially as set forth.

7. A truck-frame side comprising top and bottom arch-bars, the upper arch-bar of channel form and the lower arch-bar having a straight middle portion combined with an interposed spring stirrup or hanger of U shape formed of a metal plate having vertical embossments, the closed end of the stirrup being flattened to bear on the lower arch-bar,

the ends and Iiattened portions of the stirrup being riveted respectively to the upper and lower arch-bars, substantially as set forth.

8. A truck-frame side comprising top and bottom arch-bars, the former of channel form, combined with an interposed spring stirrup or hanger of U shape formed of sheet metal, and united at top and bottom to the respective arch-bars and forming a rigid connection between said bars and having vertical embossments and provided with inner chafingplates secured to the sides of the stirrup, substantially as set forth.

9. A truck-frame side composed of an upper arch-bar and a lower arch-bar united at their ends, combined with a spring stirrup or hanger of U shape formed of sheet metal and having its ends and closed portion united independently of each other at top and bottom to the respective arch-bars and forminga rigid connection between said bars, said spring stirrup or hanger being extended laterally toward the center of the truck and provid ed with brake-hanger supports, substantially as set forth.

10. A truck-frame side, composed of an upper arch-bar and a lower arch-bar, united at their ends, combined with a spring stirrup or hanger of U shape and rigidly united at top and bottom to the respective arch-bars, and a spring-seat, having a downwardly-projecting outer flange and an upwardly-projecting inner flange.

l1. A car-truck frame having sides each composed essentially of upper andlower arch- IOC IIO

bars, integral U -shaped spring stirrups or l hangers interposed between the upper and lower arch-bars and forming rigid connection between said arch-bars and connecting anglebars secured to the lower portions of saidI stirrups or hangers and extending transversely of the truck-frame from side to side, substantially as set forth.

12. A ear-truck frame, having sides each com posed essentially of upper and lower archbars, and U-shaped spring stirrups or hang- I

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