US529809A - Bolster for railway-cars - Google Patents

Description

2 Sheets-Sheet 1.

Patented Nev.A 27, 1894.

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(No Model.)

BOLSTBR FOR RAILWAY GARS. i

Patented Nov. 27, 1894.-

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' UNITED, STATS PATENT OFFICE.

CHARLES T. SCHOEN, OF ALLEGHENY, PENNSYLVANIA.

BOLSTER FOR RAILWAY-CARS.

sPEcIFIcATIoN forming part of Letters Patent No. 529,809,11ated1v0vember 27,1894.

Application filed June 9, 1894. Serial No. 514,078. (No model.)

To @ZZ whom it may concern.-

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

A main obj ectof this invention is to provide practically interchangeable standard body and truck holsters for railway cars, made of steel pressed to shape. Inasmuch as various railway car constructions require holsters of different widths, it would. be necessary for a manufacturer of pressed steel holsters to keep on hand or make to order dies for each width, and this would result in so much expense as to make the manufacture of pressed steel holsters impracticable because of unprofitahleness in competition with wooden and other holsters. According to my invention, I make one or two standard minimum sizes which may be widened out through the various sizes up to the maximum, and thereby the manufacturer need carry no more than one or two sets of dies for the large and heavy work of the holsters themselves. Y

In attaining the object of my invention,-I

- make up the holsters in skeleton form, andI adapt the truck bolster to Various widths by additions of bolster column-guides of different elevations. Y

Having thus stated the principle of myinvention, I will proceed 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 bottom plan viewyof the lbody bolster, Fig. 2 is a side elevation of the body and truck holsters assembled. Fig. 3 is a top plan view of the truck bolster. Fig. 4 is a transverse vertical section of the assembled holsters, taken in the plane of line 4--4, Fig. 2. Fig. 5 is an end view of the truck bolster. Figs. 6 and 7 show, in top or edge view, two

f extremes of bolster column guide-plates.

The body bolster, Fig. 1, is composed of y two essentially parallel and similar channels or channel beams a, c, made widest midway between their ends, with their upper surfaces at and their lower edges tapering from the center toward each end. These channels are assembled with their flanges a. a. arranged toward one another, as more clearly exhibited in Fig. 4, and the said channels are rigidly connected bythe transverse tie-pieces b, having the flanged ends b', which are riveted, bolted, or otherwise irmly secured to the channels a., c. For increase of strength and stiffness, these tie-pieces may be provided with longitudinal corrugations b2, and these tie-pieces heinglocated in the line of the draft rigging serve also to resist the force of concussions of the draft-timbers. At their centers the beams or channels are provided with a plate o overlapping the outer edges of the channels and bolted, riveted or otherwise rigidlysecured thereto, and to this plate c the body half d of thecenter bearing plates is secured. The side-hearings e are also riveted, bolted or otherwise rigidly affixed to the channels, andthe ends of the channels are supplied with tie-piecesf, also fixed rigidly thereto. In this way, a body holster of any width, comparatively light, and very strong and durable may be manufactured very economically.

The skeleton truck bolster g is of the form of a channel narrowest transversely on top,

midway between its'ends, and aring thencey outwardly toward its ends, the sides of the .ends being parallel by preference. The side Vflanges gf are, as in the case of the body bolster, widest or deepest at the center or midway between the ends, and both the upper and lower edges taper from the center toward the ends. The outer ends are closed or open as desired, andI have shown them open. .The side bearings `h are shown as struck up integrally from the face of the body bolster,`as in my Patent No. 475,023, although it .is Within the present invention to make the sidey bearings for the truck bolster as separate structures, and bolt, rivet or otherwise fasten them to such bolster. The flanges or sides of the truck-bolster are braced by meansof a sort of stay-bolt consisting of tubest'iitted inside between the said sides or anges to resist deformation of the holster in use, and held in place by bolts 2 passed through the sides and tubes, but of course any other form of staybolts may be used. Bearing platesjare provided at the ends ol the truck bolster to receive the bolster springs, and these bearing plates have their sides j in contact with the edges of the sides or iianges of the bolster,

and are provided with upwardly and inwardly projecting corrugations jg shorter than the width of the plates to it inside between the inner faces of the sides or flanges of the bolster, as shown in Fig. 5, to stay the plates and also the sides or ianges of the bolster laterally, the said plates being held in place by bolts 7s passed transversely through the bolster and the corrugations of the bearing plates.

The bolster column guide-plates Z are constructed with the transverse-ribs Z', and are riveted, bolted or otherwise secured to the sides or iianges or the bolster at Z2. In order to prevent the motion of the column guides on the plates from tending to shear off the fastenings of the latter, said plates may be provided with teats fm to enter holes n in the sides or langes. For minimum width bolsters the guide-plates will be flat, as in Figs. 3 and 6, but in order to adapt such a bolster to interchange with a bolster of greater width, I provide guide-plates with raised seats as clearly shown in Fig. 7. By this means, the bolster manufacturer need have machinery for making but one size of bolster and may adapt such bolster to all the various sizes or widths by providing suitable guide-plates; and since the guide-plates and the machinery for making a variety of sizes of them are comparatively inexpensive, the manufacturer is enabled to provide all sizes of bolsters for new work and for interchange at comparatively small cost.

The truck bolster is provided with the center-bearing o of any approved construction, bolted, riveted or otherwise fastened thereto, at o. I prefer to reinforce the bolster beneath the center bearing by means of a bracket or brace p, bolted, riveted or otherwise secured thereto, substantially as indicated in Fig. 4.

I do not limit my invention in body-bolsters and column guide-plates to their use in combination with the special form of truck-bolster herein described, since, as is obvious, truck-bolsters of other forms and constructions may be employed. I have shown and described this special form of truck-bolster as one of many forms that may be used.

The bolsters, center bearings, guide-plates, spring bearing plates, side bearings, ties, dsc., may be economically made by die-pressing from plate or sheet steel, and so made, are very durable and light, and when combined, they form structures of great strength.

In addition to the advantages already described as resulting from or gained by my invention, I may add, that by constructing the truck bolster narrower. transversely at the center than at the ends, there is etected a saving in metal of from ten to twelve per cent. of the width of plate required to get a certain desired depth of iiange; and since the principal strain is vertical,-the bolster being loaded at the center and supported at its ends,-the narrowing does not weaken the structure at all. In the use of one or two minimum widths of bolsters and the building them up to the required width by the addition of column guide-plates, I am enabled to effect a practical plan for using pressed steel bolsters both for new work and for interchange. In practice, the truck bolsters vary from, say, nine to fourteen inches in width, and between these limits there are upward of twenty five sizes. With my guide-plates used as bolster extension pieces, I am enabled to adapt one or two of the smaller sizes of bolsters to all these sizes or widths, and obviously, at very small expense, it being neces` sary to have dies only for the production of the various sizes of guide plates rather than for the bolsters. By making the body bolster of channels tied together, it is obvious that with the same channels, bolsters of diierent widths may be made by simply using the tie pieces, side bearings, dsc., of proper length to get the desired width, and hence this body bolster is as adaptable for or capable of interchange as is the truck bolster; and since the variations in widths of body bolsters is greater than that in the truck bolsters (being from about nine to nineteen inches) the value and economy of my invention will be apparent.

It is obvious that it is within my invention to make a body-bolster of a single channel, as in the case of the truck-bolster, and so, also, it is equally obvious that my invention comprehends making the truck-bolster ot two channels tied together, as in the caso of the body-bolster iirst described.

1. Abody or truck bolster composed of two channel-like beams, transverse tie-plates toy connect them, and side-bearings also connecting them, the channels or channel beams being deepest midway between their ends, substantially as described.

2. A body or truck bolster composed of two channels or channel beams a, d, connected by the transverse tie-pieces b, b, arranged upright centrally within the channel beams, and the end tie-pieces f, whereby a bolster may be constructed of any desired width by varying lengths ot tie-pieces without alteration of the channels, combined with an applied center-bearing-plate and side-bearings, substantially as described.

3. A body or truck bolster comprising two channels or channel beams, and tie-pieces b, b, consisting of longitudinally corrugated plates arranged between said channels at about their midway portion, and having flanged ends by which they are secured to the beams, substantially as described.

4. A body bolster composed of channel beams whose sides are deepest in the center and narrowing thence toward the ends, centoo IIO

elevated column seat and adjacent `ribs or beads therefor, whereby a bolster of minimum or deficient width may be increased in width to adapt it to interchange with a bolster of. greater width, substantially as described.

In testimony whereof I have hereunto set my hand this 8th day of June, A. D. 1894.

CHARLES T. soHoEN.

Witnesses:

G. WHITNEY Woon, E. A. SCHOEN.

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