US1097004A - Metal railroad-tie. - Google Patents

Description

J. CURTIS.

METAL RAILROAD TIE.

APPLICATION FILED D110. 20, 1913.

1,097,004, Patented May 19, 1914 2 SHEETS-SHEET 1.

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J. CURTIS. METAL RAILROAD TIE.

APPLICATION FILED DBO. 20,-1913.

1,097,004, Patented May 19, 1914,

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JAMES CURTIS, OF SACRAMENTO, CALIFORNIA, ASSIGN OR OF ONE-HALF TO ARTHUR E. MILLER, OF SACRAMENTO, CALIFORNIA.

METAL RAILROAD-TIE.

Specification of Letters Patent.

Patented May 19, 1914.

App1ioation'filed December 20, 1913. Serial N 0. 807,880.

To all whom/it may concern:

Be it known that I, JAMEs CURTIs, a citizen of the United States, residing in Sacramento, in the county of Sacramento, State of California, have invented a new and useful Metal Railroad-Tie, of which the fol lowing is a specification.

This invention relates to that class of metal railroad ties wherein the ends or heads are made from sheet metal and separably connected by a metal bar, and has for its object the formation of a tie of this sort in a manner such that it may be easily constructed and handled, will hold its seat firmly in the ballast, may yield at one end without affecting the other, and may have its ends weighted if desired.

With these objects in view the invention consists in the structure of parts and in their combination for the purpose stated substantially as hereinafter set forth and claimed.

In the accompanying drawings which form a part of this specification, Figure 1 represents the improved tie in side elevation; Fig. 2 is a plan of a section of track equipped with the improved ties; Fig. 3 is a side elevation of said section; Fig. 4 is a plan of the bar which connects the tie heads; Fig. 5 represents the form of the flat blank from which the tie heads are const-ructed; Fig. 6 is an end view of the tie head f rmed from said blank by folding it at oblique angles along the fine parallel lines extended longitudinally of the blank in Fig. 5; and Fig. 7 is a plan of one of the clamp plates by which the rails are fastened to the ties.

In the drawings the tie heads are indicated by a, the bar connecting two tie heads by Z), the bolts by which such connection is made by C, while the rails F are fastened to the ties by clamp platescl bolted in place by bolts 6. The bolts 6 pass through square holes 70 in the tie heads and holes Z in the clamp plates and the bolts C pass through holes h (preferably square) in the bar 5 and holes I in the tie head.

In the formation of the tie heads, blanks are cut from sheet metal of suitable thickness in the form shown in Fig. 5 and these are bent into the form shown in Fig. 6, the holes 1 and 7c having preferably been punched before bending the blank. The heads and connecting bars may then be transported to the place of use and assembled.

The ties when laid will hold their place in the ballast because of their concave bottoms and angular edges and since the heads are open-ended tubes they may be filled with ballast or concrete if desired. The bars 5 are sufliciently flexible to permit one tie head to yield under the weight of a train without affecting the other and yet they will hold said heads firmly against any tendency of the rails to spread. There is also a yield ing in each tie head under the weight of a train due to the fact that the side portions of the blank, which form the bottom of said head, are inclined upwardly and are not joined together which leaves them free to spring upwardly when the top of the head is pressed down. Thus results a yielding action without disturbance of ballast.

The invention claimed is:

1. A tie head consisting of a sheet-metal blank folded at oblique angles along longitudinal lines whereby an open-ended tubelike structure is produced having a flat top shorter and narrower than the bottom and downwardly inclined sides and ends, the side portions of the blank forming the bottom of said structure with their edges in approximation and being upwardly inclined, whereby said bottom is resilient and concave for the purpose set forth.

2. A railroad tie comprising a flexible bar having bolted thereto at each end a tie head consisting of a sheet-metal blank folded at oblique angles along longitudinal lines whereby an open-ended tube-like structure is produced having a flat top shorter and narrower than the bottom, the side portions of the blank forming the bot-tom of said structure with their edges in approximation and being upwardly inclined, all substantially as and for the purpose set forth.

JAMES CURTIS.

WVitnesses:

CLINTON E. HARBER, ALICE M. PAOHALL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O.

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