US574116A - Bolster for railway-cars - Google Patents

Description

2` Sheets-Sheet 1.

(No Model.)

C. T. SCHOEN. 'BoLsTBR PoR RAILWAY GARS.

No.`574,.116.j 'Patented De@l 29,1896.

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(No Model.)

0.`T.SGH0BN. BIOLSTER FOR RAILWAY CARS.

No; 574,116. Patentedne. 29,' 1896.

uhllh L l l l UNITED STATES PATENT OFFICE.

CHARLES T. SOIIOEN, OF PHILADELPHIA, PENNSYLVANIA.

BOLSTER FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent N o. 574,116, dated December 29, 1896.. Application filed October 2, 1896. Serial No. 607,643.` (No model.)

To dln/'loom' it may concern:

Be it known that I, CHARLES T. ScHoEN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Improvement in Bolsters for Railway-Cars, of which the following is a full, clear, and exact description.

This invention relates to holsters for the trucks and bodies of railway-cars, and more especially to that class of metallic holsters which are built up of plates of steel which are pressed to shape and then riveted together.

The objects of the invention are to economize in the cost of construction of such builtup metallic holsters and to facilitate the riveting of their parts and to reduce the number of parts entering into their composition or construction.

The invention consists in a bolster the outline of which is somewhat of the form of a box-girder, the adjacent edges of the constituent body members of which are provided with outwardly-projecting iianges or portions whichare riveted together.

The invention also comprises certain details of construction whereby this form of bolster is adapted for interchange with holsters already in use, so that cars containing other forms of holsters may be repaired with my bolster.

In the accompanying drawings, illustrating my invention, in the several figures of which like parts are similarly designated, Figure l is a top plan view of a truck-bolster constructed in accordance with my invention. Fig. 2 is a side elevation thereof. Fig. 3 is a vertical cross-section taken in the plane of line 3 3, and Fig. 4 is an end elevation. Fig. 5 is a top plan view of a body-holster constructed in accordance with my invention; and Fig. 6 is a side elevation thereof, these two figures (5 and 6) having the left-hand end broken out in order to get the view within the sight. Fig. 7 is a vertical cross-section taken in the plane of line 7 7, and Fig. 8 is an end elevation.

Referring now to the truck-bolster, Figs. 1, 2, 3, and 4, the body is composed of a troughlike member a, having at its upper edges the lat-eral flanges h, extending longitudinally thereof and projecting outwardly therefrom. The member a is made deepest at its center and tapers thence in curved or straight lines toward opposite ends, which opposite ends are made fiat, so as to coperate'with the springs of the truck. The top portion c of the body has its upper and lower edges parallel, and such top member is .also made in the form of an inverted trough and has its lower edges hanged outwardly, as at d, so as to register with the flanges b of the member o. These two members are united by rivets e, applied to their ilanges h and CZ, and constitute the hox-girder-like construction referred to.

As shown in Fig. l, the bolster is narrowest at its center, where the center hearing-plate fis applied, and its sides diverge thence toward opposite ends, so that the said ends will give a width substantially equal to the standard width of holster required by the Master Car-Builders Association, although for new work this requirement may he dispensed with.

In order to adapt the bolster to the columnguide bars in common use, the ends of the holsters are provided with indentations g, leaving the adjacent shoulders h on opposite sides to take the place of holster-guide column-plates. The lianges h and d are cut away opposite these indentations.

Side bearings t' are riveted to the top memher, and the center plate f is also riveted to said top member, and said top member is provided with hand-holes 7c, by means of which ready access maybe had to the interior of the hollow box-girder-like bolster for applying and removing the rivets by which the center plate and side bearings are attached.

In order to close and also to reinforce the ends of the holster, vertical tie-plates Z are riveted in the ends of the bolster.

In order to reinforce the members of the holster', at the center, so as tocompensate for increased strain and pressure at that point,I I provide the members of the bolster with indentations m and n, respectively.

In order to reinforce the king-holt holes, I

turn up the displaced metal so as to form.

flanges o and p about said holes, and the center bearing-plate may have'its king-bolt hole IOO provided with a flange r for a like purpose, and also to form a cavity within the center bearing-plate for the reception of a lubricant.

By making the bolster of less width at the center than at the ends I effect an economy in the Width of the sheets of metal required to obtain a given depth at the center, and, moreover, such increased central depth resuits in obtaining the necessary strength to carry the vertical load. The decreased depth at the ends permits of the use of the bolster in the present type of diamond trucleframe.

By making the column-guides integral With the bolster is avoided the necessity of employing eXtra or applied pieces, and at the same time the construction is stronger.

The Hanging of the king-bolt holes gives increase of bearings for such bolt and at the same time red uces the liability of injury from con tact with the bolt. The iian ge around the bolt-hole in the center bearing gives a longer bearing for the king-bolt than is obtainable by simply punching out a hole in the bottom of the plate.

The tie-plates Z serve not only as such and for boxing in the ends ofthe bolster, but they also makel a iinish and assist in supporting those portions of the bolster where the springs are placed and to which the load is transmitted from the center.

In the adaptation of my invention to bodyholsters the body s maybe made as a trough, as shown in the section Fig. 7, with the lower member curved or tapered from the greatest depth at the center outwardly toward each end, and its upper edges are provided with the longitudinal outwardly-projecting flanges s'. rFhe upper member is a sim ple flat plate z, which is riveted to the Han ges s, so as to close the top of the member s. rlhe centerbearingplate u and the side bearings u may be of approved construction and riveted to the bottom member .5'.

The construction shown in Figs. 5 to 8 of the body-bolster may be applied, with the necessary changes, to a truck-bolster, the essential thing being that the bolster shall be in the form ot' a boX-girder, with its members having adjacent lateral projections or iianges which are riveted together.

I have shown the vertical sides of the bolsters as substantially straight or in vertical from the inside or otherwise. Again, the nu 1nber of parts in the matter of braces or tie-plates is Very much reduced, and while the weight of this bolster is about the same, or, in fact, less, for a given strength as compared with other pressed-steel built-up holsters, all of the metal practically is in those parts of the bolster which help to carry the load, whereas in other cases very much of the weight is in the braces which go to make up the structure, but do-not materially assist in carrying the load.

It is sufficiently indicated already that the preferred construction of bolster utilizes pressed-steel shapes, that is to say, plates of steel pressed to shape in dies or by other machinery or processes, although I do not wish to be understood as limiting my invention to this material and to this mode of product-ion, excepting to the extent hereinafter part-icularly claimed.

That I claim ism l. A boX-girder-like bolsteighaving its body composed of a lower portion deepest at its center and tapering thence toward its ends, and a top portion, these two portions having longitudinal outward projections which are united by rivets, substantially as described.

2. A boX-girder-like bolster, havingits body composed of a lower member deepest at its center and tapering thence toward its ends and having its upper longitudinal edges flanged or projected outwardly, and a top member also having its lower edges provided with outward lateral projections or iianges, the flan ges of the two members being riveted together, substantially as described.

A bolster having its ends indented at their sides, and provided with parallel adjacent shoulders, forming integral guides for the bolster-columns, substantially as described.

4. A bolster formed substantially as a boxgirder, and comprising two members riveted together, and having lateral indentations at their center, substantially as described.

5. A pressed-steel bolster, composed of a trough-like bottom member deepest at its center and tapering thence toward its ends, and having longitudinal outwardly-projecting iianges along the sides of its upper edges, and a top member having complemental lateral projections riveted to such danges, substantially as described.

In testimony whereof I have hereunto set my hand this 29th day of September, A. D. 1896.

CHARLES T. SCHOEN. lVitnesses:

A. G. FRAMBns, WM. V. MAssnY.

IOC

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