US578990A - Metallic railway-car - Google Patents

Description

P. HERON Y METALLIC RAILWAY GAR.

Patented Mar. 16, 1897. I

union,

FRED HERON, OF CHICAGO, ILLINOIS.

M ETALLIC RAI LWAY CAR.

EPECIFIOATION forming part of Letters Patent No. 578,990, dated March 16, 1897.

Application filed July 20, 1896. Serial No. 599,762. (No model.)

To all whom it may concern.-

Be it known that I, FRED HERON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Metallic Railway-Cars, of which the following is a specification.

My invention relates particularly to metallic railway-cars that are formed of metal structural members or channel-beams, and

especially to the means for securing these beams or members together and against longitudinal and ordinary displacement.

The object of my invention is to provide a simple, economical, and efficient metallic railway-car; and the invention consists in the features, combinations, and details of construction hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a transverse sectional View taken through a railway-car in the vicinity of the needle-beams; Fig. 2, an enlarged transverse sectional detail showing two sections of the structural members and the means for securing them together, and Fig. 3 a side elevation of one of the channel-beams removed from the car.

In the art to which this invention relates it is well known that metal is adapted to enter largely into the construction of both the underpinning and superstructure of railwaycars, so that the means by which these portions may be secured together and held against lateral displacement is one of the most important features. The usual method of securing the members together by rivets, bolts, and nuts is objectionable in that the cars must be, in order to take curves, to a certain degree elastic and permit of a moderate amount of flexure. As a consequence bolts or rivets are apt to be sheared, thereby displacing or allowing the parts to vary from the desired arrangement. To remove this objection and provide simple and economical mechanism by which the different portions of the cars may be secured against ordinary displacement is the principal object of my invention. 7

In describing and illustrating my improvement I will only describe and illustrate that portion which I consider to be new, taking in connection only so much of the old mechanism and elements as are necessary to disclose my invention and enable those skilled in the art to make or practice the same. In describing an d illustrating my improvement, therefore, I prefer to and practically have limited the description and illustrations to the means by which the channel-beams that form the platform of an ordinary car are secured together and held in position, believing that this will enable those skilled in the art to use my invention and apply it to other portions of the car.

In constructing my improvements and applying them to a platform-car I use several channel-beams A, of the desired shape and cross-section, and place them longitudinally or lengthwise of the car. These channelbeams are of sufficient Width so that any desired number may be used to obtain the desired width of the car and are arranged with their flanges or legs at extending downwardly and contacting the legs of the next adjacent channel-beams.

To prevent ordinary displacement of parts due to usage of the car, I provide the legs or flanges of several of the channel-beams with cup-shaped projections a and the legs or flanges of the adjacent or contiguous channel-beams with cup-shaped recesses a adapted to receive and hold the projections a on the next adjacent beams in interlocking or meshing condition. Each channel-beam is provided with several of the cup-shaped projections or recesses intermeshing one with the other, so that it will be seen that lateral or longitudinal displacement is impossible until the parts have been removed from their intermeshing or interlocking position. Tomore securely hold these parts in position, I provide tie -bolts 1), that extend transversely through the car from side to side thereof, and surrounding these bolts in each of the channels and between the cup-shaped recesses or projections are thimbles O, that act as spacing-pieces, contacting the flanges of the beams at the points where the cup-shaped projections or recesses are located. The outer ends of these tie-bolts are provided with hemispherical washers D and nuts E, that allow of a certain movement much like a ball-joint, but still act to hold the parts securely. By this arrangement of construction it will be seen that the displacement of the parts is prevented by the interlocking cup-shaped projections and recesses, but at the same time the peculiar shape of the recesses and projections permits of an elasticitysufficient for the ears to take curves or flex the necessary amount when loaded. All that the bolts and nuts have to do is to prevent separation of the parts and are not liable in any Way whatever to be sheared, all of which will be readily appreciated by persons skilled in this particular art.

In Fig. 1 I have shown the side bars G, needle-beams H, and center sills I. These are merely shown in their arrangement in the drawings, so as to present a complete crosssection of a platform-car, and I do not desire to be limited to this particular kind of structure, but to embody my improvement in any kind of metallic railway-cars, leaving the arrangement of the different parts to the mechanical skill of the manufacturer, builder, or artisan.

I claim 1. In a car of the class described,the combination of several metal channel-beams forming part of the structural members of a car,

several of which are provided with cup-shaped projections and the next adjacent beams provided With cup-shaped recesses interlocking with the projections to prevent longitudinal or ordinary displacement, and bolt mechanism for tying the beams together at the points where the projections and recesses are located, substantially as described.

2. In a car of the class described, the combination of several channel-beams arranged lengthwise to form the platform of a car and with their legs extending downwardly, some of such beams having cup-shaped projections on their legs and the rest having cup-shaped recesses on their legs or flanges interlocking one with the other to prevent longitudinal and vertical displacement, bolt mechanism passed through the cup-shaped portions of the legs, and thimbles surrounding the bolts and 0011- tacting cup-shaped portions to act as spacers and in connection with the bolts to tie the parts together, substantially as described.

FRED HERON.

Witnesses:

En I-IAUPT, THOMAS E. MoGREeoR.

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