US758927A - Railway-tie. - Google Patents

Description

No. 758,927. PATENTED MAY 3, 1904. J. MURPHY.

RAILWAY TIE.

APPLICATION FILED PEB.13. 1904.

N0 MODEL.

WITNESSES: INVENTOR ATTORN EYQ UNITED STATES Patented May 3, 1904.

JOHN MURPHY, OF COLUMBUS, OHIO.

RAILWAY-TIE.

SPECIFICATION forming part of Letters Patent No. 758,927, dated May 3, 1904.

Application filed February 13, 1904. Serial No. 193,407. (No model.)

To all 1117mm it nuty concern:

Be it known that 1, JOHN MURPHY, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Railway-Ties, of which the following is a specification.

My invention relates to the improvement of railway-ties, and has particular relation to the construction of that class of ties which are formed of a suitable composition.

The objects of my invention are to provide an improved tie of this class of superior construction and arrangement of parts, to so construct said tie as to render the same exceedingly strong and durable, and to provide in conjunction therewith an improved cushionsupport for the track-rails and improved means for uniting the rails with the ties, and to produce otherimprovements, the details of which will be more specifically pointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of my improved tie, showing the track-rails in section thereon. Fig. 2 is a plan View showing one of the trackrails removed, and Fig. 3 is a central longitudinal section of the tie.

Similar numerals refer to similar parts throughout the several views.

In carrying out my invention the elongated tie-body 1 is first molded from a composition of ingredients which preferably consists of clay or shale mixed with sand, these ingredients being ground together, molded to the desired form, and then burned sufficiently to produce fusion of the mixture, thus causing a desirable mingling or uniting of the ingredients, thereby producing an exceedingly hard, strong, and durable body. It is obvious, however, that a tie-body of the form herein shown may be molded from concrete or similar material, in which case the burning is unnecessary.

In producing my improved tie the same is formed hollow, the central longitudinal passage, which is indicated at 2, extending throughout the length of the tie. At points on opposite sides of the center of the length of the tie and over which the track-rails are adapted to extend in the manner hereinafter described I form the tie-body with opposing lateral projections or enlargements 3. The upper side of the tie is also formed on opposite sides of each of its track-rail-supportingportions with upwardly-projecting shoulders 4. Beneath these shoulder portions and in the body of the tie are provided wooden spikereceiving blocks 5, the latter being inserted in suitable recesses 6, formed transversely of the tie-bod y when the same is molded. l Vithin the transverse channel formed between each pair of the shoulders 4: is provided a tracksupporting cushion,\vhich consists in a lower layer 7 of sheet-lead, a next higher layer 8 of rubber, rubberoid, or other rubber composition, and an upper layer 9, above the cushion layer 8, of wood. The upper surface of the higher cushion layer 9 is, as shown, slightly below the height of the shoulders 4, and upon this upper cushion layer is designed to rest the base of the track-rail 10 in the manner shown more clearly in Figs. 1 and 3 of the drawings. In forming the tie-body the shoulder portions at are, as indicated more clearly in Fig. 2, recessed on their inner sides to form vertical spikeways or channels 11, and into these ways are driven the spikes 12, the heads of which engage the base of the track-rail in the usual manner and the points of which enter the wood blocks 5.

From the construction which I have herein shown and described it will be understood that not only is an exceedingly strong and durable composition railway-tie produced,but that improved means are provided for cushioning the rails on said ties.

It is well known that one of the objections urged against the employment of composition or metal railway-ties has been the extreme rigidity of the tie and its failure to give or move with the rail when the latter is vibrated or moved by contraction or expansion; but by the provision of the cushion-support herein described it is obvious that this ditficulty is overcome and that the rail may be permitted its usual vibratory or other movement inclependent of the tie.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a railway-tie, the combination with a hollow molded tie-body having transverse railreceiving channels, a yielding bearing for said rails within said channels and spike-receiving blocks of wood seated in said tie-bodies.

2. In a railway-tie, the combination with a hollow molded tie-body having parallel upper side shoulders 4 near each end thereof, a railsupporting cushion between the shoulders of each pair, said cushion comprising independrail-holding spikes.

JOHN MURPHY. In presence of W. L. MoRRow, A. L. PHELPS.

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