US930157A - Railway-tie. - Google Patents

Description

A. R. CLARKE.

RAILWAY TIE. APPLICATION FILED snmaa, 190a Patented Aug. 3, 1909.

Wad /4 INVENTOR. [lira CZafe WITNESSES A TTORNE ALVA R. CLARKE, OF SEATTLE, WASHINGTON.

RAILWAY-TIE.

Specification'o'f Letters Patent.

1Patented Aug. 3, 1909.

' Application filed September 23, 1908. Serial No, 454,443.

" construction of a tie comprised of two concrete inembers which are chambered for the reception of the rail seat-block; second, in the construction-and adaptation of said seatbloeks to afford --a suitable support for the respective rails and which are reliably held inqplace b the agency of the rail securing s 1 es; an third, in the manner of employing t e reinforcing elements to serve to stiffen and strengthen the aforesaid concrete tiemembers as well as to maintain the latter in. spaced relation with each other for preventing the spread of the railsand yet allow of vibratibn to the individual members sl'ifii cient to accommodate the shocks imparted thereto from trains passing over the same.

Referring to the accompanying drawings, Figure 1 is a perspective view of a railwaytie embodying my invention with a rail shown as laid upon. one of the blocks, but

unsecured thereto. Fig. 2 is a view partly planand partly in horizontal section; and

Fig. 3 is a view partly in side elevation and partly in longitudinal vertical sectionof the same. In Fig. 3 the rails of a track are illustrated as secured to the tie. Fig. 4 is a cross sectional .view taken through 44 of Fig. 2. Fig. 5 is a perspective view of a seat block, shown detached.

' According to this invention, atie isformed of two concrete members 10 which are of substantially rectangular configuration. The

top longitudinal and outermost transverse.

edges 1 1 of these members are, however, preferably chamfered to protect the same from chipping through exposure to the changes in atmospheric or other conditions to which a tie is subjected. I

The two members ofa tie are disposed to be in alinement and are maintained at some distance apart b the employment of a reinforcing metallic coped bar, or link, 12 which is embedded in the concrete in the molding of the tie. The link is of a length so as .to have its loops, or extremities, 12- extend to within a short distance of the ends of the tie. The link is preferably arranged in a horizontal plane, asshown in Figs. 2 and 3.

. Each of the members 10 is apertu-red to furnish therein a chamber 13 having parallel vertical sides :13, and ends 13 whlch are inclined to, slope downwardly toward each other in the respective members. These chambers are pro erably extended through the respectivemembers ,and lie the longitudinal axis of the tie and at a distance apart to correspond with the vgage of the track where employed. Provided for each of the chambers 13 is a seating-box 14. of wood or equivalent 1naterial. Such blocks are of a-wldth to fit within or be slightly less' thanthe chambers and are of a similar configuration in a vertical longitudinal .plane to, but somewhat longer than, the res ec.

tive chambers, thus causing the blocks w ien inserted in place, as shown in Figs. 1 and 3, to protrude above the tie. 'Each block is provided with a longitudinal slot 14, such as a saw-kerf, extending its .entire length and of a depth somewhat less than that of the block.

15 and 16 represent filling pieces of wood or of correspondingly elastic material which may advantageously be inserted within the ga 17 between the members 10 above and be ow thelink 12 to prevent the dirt entering thereat and not materially affecting the ingependent movements of the said tie memers.

In operation, the ties are laid upon or embedded in'the track-bed, as usual, and when properly adjusted as to height the rails 18 are secured in )lace by spikes 19 being driven into the seating blocks 14 so as to pass through the slots 14' thereof, as shown in Fig. 3, whereby the wood at each side of. the

slots is spread to make a binding fit between the blocks and the respective chambers. The wood elements, that is, the blocks 14, and also the filling pieces 15 and 16 where utilized, may be treated preparatory to their use with a suitable preservative, such as croosote, and, after the track is laid, a filler of tar may be poured into slots 14 to exclude water or dirt therefrom. v

The advantage derived from the use of a tie constructed in accordance with my invention is due. principally to its flexibility that is attained by the separation of the rigid concretemembers by a coupling link giving the requisite flexibiht Y 'to the -struc ture in that part of the uniting link which s ans the gap. The wood seating blocks a so serve to cushion-the jars encountered from a moving train, as' well as affording convenient devices to cooperate to reliably secure the track. rails in spaced ositions. The seating blocks mwy'obvious y be renewed when unfittedfnlr l'urtheruse, consequently the life of a tile is governed by the durability of the concrete members and the a metal coupling link-s therefor! Having described my invention, what I claim as new and desilre to secure by Letters- Patent, is

1. A railway tie composed of two concrete members arranged to. have their adjacent ends in spaced relation, a link embedded in both of said members and composed oi'sidfi and ends connecting the sides, said link sides extending across s'ald space between the members, a pair 0/1 separate filling blocks ongaging on the top and bottom faces of said link sides and formed with a longitudinal slot terminating above the bottom sides of the blocks, said slots being adapted to receive the rail-spikes whereby the latterspread the wood on opposite sides of the slot to make a binding fit between the blocks and the chambers therefor.

2. A railway tie composed. of aconcrete' member formed with a chamber having downwardly converging ends, and a wooden block having inclined ends to conformably engage said end walls of the chamber, said block being fgorined with a longitudinal slot which extendsto points adjacent the bottom side thereof, said slot being adapted to receive the .rail spikes whereby the latter;

spread the .wood on opposite sides of the slot to make a the chambers therefor.

3. A railway tie composed of two concrete members arranged ends are in spaced relation, a connecting member embedded in both of said concrete members so as to extend across the space between said members at points midway of the binding iit between the blocksandso that their adjacent heightof said concrete members, anda pair of separate filling blocks engaging the top and bottom'faces of said connecting member and extending flush with the topand bottom faces of said'concrete members. A g p ALVA RCLARKE;

Witnesses:

HORACE BARNES, II. A. BnoNsoN.

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