US899023A - Railroad-tie. - Google Patents

Description

R. Ii. BOWER.

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ROBERT L. BOWER, OF BLANDBURG, PENNSYLVANIA.

RAILROAD-TIE.

Specification of Letters Patent.4

Patented Sept. 22, 1908.

Application led May 28, 1907. Serial No. 376,094.

the .United States. Xo- $55,277, granted tome on -ay 2S, 1907. and in the application for Letters Patent of the United States, Serial No. 354,173,1ilcd by ine on May 21, 1907.

The object of the present. invention is to provide a new and improved metallic railroad tie arranged to prevent movement of the. tic in the direction of its length, that is, transverse to the road-bed, thus rendering the tie eininentlv useful on curves and other places subjected to great force by the. pas-` sage of heavily' loaded or fast speed trains.

The invention consists of novel features and parts and combinations of the saine, which will be more full) described hereinafter and then ointed out in the claims.

A practica embodimentoi the invention is represented in theaccompanying drawiiws forming a part of this specification, in whih similar characters of reference indicate correspending parts in all the vie-ws.

Figure 1 is a.V perspective view of the irnrovement; Fig. 2 is a side elevation in section, of the same; Fig. 3 is a si( e elevation of a modilied foi-in of the improvement, part beingr in section; Fig. 4 is a sectional end view of the same on the line 4-4 of Fig. 3, and Fig. 5 is a perspective view of another modified forni of the im rovement..

The improved metallic railroatlotie is preferabl inade from a single piece 'of sheet metal, of a width corresponding to the length of the tie, the piece of sheet metal being rolled up or otherwise treated to reduce a. tie of uniform strength and of practically normal width and thickness The piece of sheet nieta] 'may be rolled up into vaiious forms, as illustrated in the drawings and as shown in the Letters Patent, and in the application for Letters Patent above referred to, and the tie formed in the manner shown and described mav be provided with any one of the rail fastening and anti-spreadartly ing devices shown in the said patent and in my former a )plication above referred to, so that further description of the form ofthe tie and the rail fastening and anti-spreading devices is not deemed necessary.

In the present invention the essential feature consists of means for preventing the tie from sluiting mainly in the direction of its length and transverse to the road-bed, and also to prevent the tie from shifting in the direction of the lengt-h of the road-bed.

As shown in Figs. 1 and 2, the rolled up sheet inet-al tie A has its llatbottom layer 0r convolution A iovided with one., two or more downward y extending struck-up hws A ranging in the direction oithe width of t ie tie, so that when the tie and its lugs A are embedded in the road-bed, the lugs A resist transverse shifting of the tie in the roadbed even when the tie is subjected to high lateral strains, such as occur, for instance, on curves on the passa-ge of heavyv loaded or high speed trains.

In the modified form illustrated in Figs. 3 and 4, the rolled np sheet meta-l tie B has its bottoni layer or convolution provided with a large number of de ending struck-np apertnred bosses B, pre erably arranved in transverse and longitudinal rows, and embedded in the road-bed material with the tie, the road-bed material beilw free to enter the o )cnings in the bosses ll to increase the resistance of the tie against movement in any direction.

As shown in Fig. 5, the bottom laver or convolution C of the tie C is provid-ed with lone or more dependine lues Cz ranging in the direction of the width o? the tie from the outer or beginning edge of the botto'n layer or convolution C' to the other side of the tie.

Although I have shown but a few samples of the means for preventing the tie from shifting laterally in the road-bed, 4it is evident that other forms besides the ones shown and described may be ein loyed, and hence I do not limit myself to tie particular construction illustrated. i

By making the resisting means against shifting of the tie integral with the bottom layer or convolution of the tie, the latter can claim as new 4and desire to secure by Letters `latent: l

`I."A"railroud tie made of a piece of sheet metal rolled u to form a tube, the outermost 5 convolution olthe rolled up tube hnvng integral ltransverse projections for ernbedment in the road-bed.

2. A railroad tie made of a piece of sheet meta-l rolled up to form a tube, the outer- 10 mostconvolution of the said rolled up tie having integral struckup lugs extendnr trans gesely of the tie for embedlnent in theroad- In testimony whereof I have signed my name to this specification in .the presence of 15 two subscribing witnesses.

' ROBERT ILBOWER.

Witnesses:

PMT MCHUGH, NELLIE Bown.

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