US402459A - Car-truck - Google Patents

Description

2 SheetS-Sheet 2.

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M. KENNEDY.

GAR TRUCK;

Patented Apr. 30, 1889.

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UNITED STATES PATENT OEEIQE.

MARTIN KENNEDY, or IIEeEwIsoH, ILLINoIs.

CAR-TRUCK.

SPECIFICATION forming part of Letters Patent No. 402,459, dated April 3,0, 1889. Application filed November 26, 1888; Serial No. 291,894. (No model.)

`To all whom it may concerm.

Be it known that I, MARTIN KENNEDY, a citizen of the United States, residing at Hegewisch, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Car-Trucks, which is fully.

set forth in the following specification, reference being had tothe accompanying drawings, in which- Figure l represents a plan View of a swingtruck frame embodying my invention; Fig. 2, a front elevation of the same; Fig. 3, aside elevation; Fig. 4, a sectional view taken on the `line l 1 of Fig. 1; Fig. 5, a detail sectional view taken on the line 2 2 of Fig. 4; Fig. 6, a detail sectional view taken on the line 3 3 of Fig. 2; Fig. 7, a plan view of .a frame end modified to adapt it forl use in a rigid truck;

Fig. 8, an elevation of the same, and Fig. 9 a sectional view taken on the line 4 4 of Fig. 3.

Like letters refer to like parts in all the figures of the drawings.

My invention relates to car-truck frames, and is in the nature of an improvement upon the invention set forth in Letters Patent No. 214,508, granted to me April 22, 1879.

a The object of my invention is to produce a cast-metal frame which shall combine in a superior degree the advantagesV of cheapness, strength, lightness, and ease ofconstruction; and to these ends my invention consists in certain novel features, which I will now proceed to describe, and will then particularly point out in the claims.

In the drawings I have shown in Figs. 1 to 6, inclusive, a car-truck frame of my invention, which is adapted for use in that class of car-trucks known as swing-trucks. In this construction the frame consists of fourpieceslto wit, two end pieces, A, and two cheek-v pieces, B. The two end pieces are exactly alike in their construction, and the two cheek pieces are also exact duplicates of each other. Each of these four members is cast in a single piece, and preferably in 'steel of a suitable character. Each end piece consists of the arch-bars a, columns a, and tie-bar e2.' The arch-bars and columns are preferably provided on their adjacent faces with a strengthening-rib, a3. The ends of the arch-bars and tie-bar are provided with perforations a4 to receive the bolts which secure the journalboxes in position between said bars. The columns are provided on their inner faces with recesses a5 to receive the correspondingly-shaped ends of the cheek-pieces B, as shown more particularly in Fig. 5. From the points where the columns and arch-bars join there are extended inward fourarms or projections, a6, one at each end of each column.

The cheek-pieces B have `in vertical crosssection practically the shape of what is known as a channel-beam, or, in other words, each check-piece consists of a vertical web or body,

b, having at the top a horizontal flange, b', and at the bottom a similar flange, b2. This latter flange is at its ends parallel with the top flange; but the intermediate portion has the form of an arch, as shown, in order'to give increased strength and lightness. Each cheek-piece is provided at each of its ends with a sleeve, 198, to receive the bolt which secures it to the end piece, as hereinafter set forth;'and there is cast in the top of each cheek-piece, near each end thereof, a recess, b4, the recesses of the two cheek-pieces being opposite each other in pairs, as shown in Fig. l, and serving to receive the hangers by which the springs are supported. On the outer face of each cheek-piece, near each end thereof, there are cast apertured lugs b5, to receive the brakehangers, and on the same face, but nearer the center, are cast hooks b, which receive the brake-chains. The'four members thus constructed are assembled and secured in the following manner: The ends of each cheek-piece are inserted between the correspondin'g projections, a, of the end pieces and restfin the recesses a5, constructed therefor in thecolumns a. Long bolt-s, C, pass downward through each end piece and through the corresponding sleeves, 63, on the ends of the cheek-pieces. Shorter bolts, C', pass downward through the upper projections, a, and through the top flanges, b', of the cheekpieces, and also upward through the bottom projections, a, and bottom flanges, b2, of the cheek-pieces, and serve, in conjunction with the bolt C, to connect the end pieces and cheekpieces firmly together. It will be observed that these bolts are the only ones employed inthe construction of the frame, all the riveting, welding, bolting, and other blacksmithing heretofore necessary being entirely dis- IOO pensed with. A very much cheaper, lighter, and at the same time stronger, truck-frame is thus obtained. For instance, in the truck as ordinarily constructed, in which the columns are made in separate pieces from the archbars, a heavy load or sudden concussion is liable to strip off either the top or bottom nuts of t-he column-bolts, thereby letting the whole end frame down and rendering it practically useless. Such aresult is of course practically impossible in the construction in which the columns and arch-bars are cast in a single piece. Moreover, in case of damage to any portion of the truck only that one of the four members thus damaged needs to be renewed, whereas in the truck constructed as in my prior Letters Patent, hereinbefore mentioned, which is cast in a single piece, a breakage at any one point requires a renewal of the whole truck-frame.

In Figs. 7, 8, and 9 of the drawings I have shown a construction in which the end pieces are so modified as to adapt them for use in what is known as a rigid truck. In this construction the only changes necessary are the omission of the projections a6 and the substitution therefor of laterally projecting flanges a7. These'fianges are cast flush with the top surface of the lower arch-bar, extending across the space between the columns and slightly beyond said space in each direction, being provided with apertures a8, by means of which they serve for the attachment of the sand-board. This sand-board in rigid trucks supports the springs, and, passing through the space between the columns, is bolted to the fianges a7 by means of suitable bolts passing through the apertures as therein. The adjacent faces of the columns are rectangular in form and parallel to each other, and the columns as thus constructed serve as guides or retaining-ways for the saddle or clips on the vertically-moving bolster, which projects through the space between said columns. In this form of truck of course the cheek-pieces B are dispensed with, the ordinary sand-board and bolster being substituted therefor.

It is obvious that various modifications in the details of construction may be made withyout departing from the principle of my invenclaim as new, and desire to protect by Letters Patent, is-

1. A car-truck frame consisting of the two similar end pieces, A, each cast in a single piece and provided with inwardly-extending projections, the two similar cheek-pieces, B, each cast in a single piece, and suitable bolts connecting the cheek-pieces to the projections on the end pieces, substantially as and for the purposes specified.

2. A car-truck frame consisting of the end pieces, A, having recesses a5 and projections a, the cheek-pieces B, fitting at their ends in said recesses and between said projections, and the long bolts C and short bolts C', connecting said end pieces and cheek-pieces, substantially as and for the purposes specified.

3. In a car-truck frame, the end piece, A, having the arch-bars a and columns a. cast in a single piece, substantially as and for the purposes specified.

4. In a car-truck frame, the end piece, A, having arch-bars a, columns a', and tie-bars a2, all cast in a single piece, said tie-bars being in the same plane with and forming eX- tensions of the lower portion of the lower archbar, substantially as and for the purposes specified.

5. In a car-truck frame, the end piece, A, having the arch-bars a and columns a. cast in asingle piece, said columns being provided with recesses a5 and having their opposite faces plane and parallel, substantially as and for the purposes specified.

6. In a car-truck frame, the cheek-piece B, cast in a single piece and having formed thereon recesses b4, apertured lugs b5, and hooks b, substantially as and for the purposes specified.

MARTIN KENNEDY.

VVitn esses CARRIE FEIGEL, IRVINE MILLER.

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