US996634A - Reinforced-concrete cross-tie. - Google Patents

Description

W. D. FORSYTH. REINFORCED CONCRETE (moss TIE.

V .APP LIUATION IIIIBD NOV. 25, 1910. 996,634.

Patented Jul 4, 1911.

2 SHEETS8HBET 1.

w. 1). FORSYTH. REINFORCED GONGBETE (moss TIE.

APPLIOA'IION FILED NOV. 25. 1910.

Patented July 4,- 1911.

hvemto'c \M mum/D .Yov s wc W We new and Improved Reinforced-Concretefication.-

. a key for lioldingthe rails in position. Fig. 9 l the key. Fig. ,6 is a perspective of a core. Fig. 73is a perspective of the preferred formsuch as concrete, properly reinforced and provided with rail-securing devices, and its serving the gage of the track, and which shall have readily removable rail-retaining passing trains evenly to the entire body of 45 forms ofreinforced concrete bodies one WILLIAM :0. roRsY'rH, or vonnesrown, OHIO.

CE. I

r Speeificatioxipf Letters Patent. watentedJuly 4, 1911. Appufiitien filed November 25, 1910. Serial No. 594,013. v i

To all whom it may concern: I

Be it known that I, WILLIAM D. FoRsY'rH, a citizen of theUnited States; and a resident of Yonngstowmin the county of Ma-- honing and State of Ohio, have invented a Cross-Tie, of whiclrthe following isa speci- This invention relates to railway crossties formed with a body of plastic material,

object is to provide a cross-tie which shall have suflicient-strength to resist the hammering from heavy trains, which shall have meansffor properly determining and pre devices. 1 1 It further relates-to improved rail-,retaining devices especially adapt d for rein, forced-concrete cross-ties. In the accompanying. drawings. Figure 1 is a perspective view of a cross-tie embodyingthis-invention. Fig.2 is a side elevation of a sect-ion of the same on a larger scale. Fig.3 is a cross section of the cross-tie on the line 33 of Fig. 2. 1 Fig. 4 is a plan of 5 is a perspectiveofthe stirrup to engage of cross-tie embodying this invention. Fig.

7. Fig. 9 is a plan of a spike-retainer.

Similar reference characters refer to like The objection to-the greater number of. suggested reinforced: cross-ties has beenthat the ties'lacked proper meansfor holding down the rails and for predeterminingthe gage of the track, and that no proper provisions are'made'to transmit the blows-from' the concrete. v

The accompanying drawings illustrate two having novelspikefi retaining devices yem-' bedded therein and the otherprovided with other novel rail'retainers', Both forms of concrete bodies are shown'suppliedwith av troughf shaped steel top provided 1 with .gapped ridges to position the rails and with inwardly extending tongues tonn-ite the tops to the concrete bodies.

The steel top of the cross-tie shown in Figs. 1, 2 and 3 is preferably in the form of a trough having a top-plate'l, inclineds-ides 2, ridges 4 having gaps 5 and 6, and, inwardly extending tongues 7 and 9 sheared out of the top-plate I and inclinedsides 2, respectively. The top-plate maybe formed with T-shaped slots 10', in pairs, at'opposite sides of the gaps 5, the larger portions of the slots being suiiieient-ly large to admit the heads 11 of the 'stirrups shown in Fig. 5;" the narrower portions of the slots closely fitting the stems 12. The distance between the stems 12 is sutiicient to admit theresilient steel-keys 13 haviiig. lateral erttensions 14 adapted to fit in the gaps 6 in the ridges 4, when the keys are driven to railholding position. The cross-tie is formed in a proper mold by placing in the bottom thereof. the steel top with thetongues 7 and 9 properly bent inward. To form the re may be formed by properly molding sand I mixed with flour-paste and then ba ki'ng. After the top and cores are in position, con'f crete "24 'is rammed down againstthe metal around the tongues, and if desired. any

properlongitudina l reinforcing rods-19 and QO-of any desired type may be embedded in the concrete. The result-ant cross-tie will have a continuous tie-plate which will traps- F30 mitthe blows from thetrain to the entire;

upper part 0fthe concrete body. As the ed. The keys 13 are 'drivenunder the cross: barsj2ly'of the .stirrups onto the inclined.

flanges 22 of'the rails 23 and ,will bend.

slightly. When theilateral projections .14 3

of the keys reach the gaps 6 they will snap 106 down into the. same. The'stiif keyshold the rails securely in the gaps 5." To remove the keys, wedges may .be driven t nder their outer-ends until they are froint he gaps x- 6 when they may be driven back out of the stirriips.

. ridges 4, and the tongues 7 and 9 again exflowing in between the coils of the springs tend into the concrete body 25. The topplate is formed with any desired number of holes 26 to admit the spikes or bolts 27 which may have any desired cross section.

Molded in the concrete are the plates 28 having proper apertures to permit the shank of a spike that has lost its headto be driven through, for which purpose the body of concrete also has the passages 29. Between these platesQS'andthe top-plate l are the two-part sleeves 30, preferably cylindrical, with bores to fit the spikes 27. These sleeves may be formed from properly rolled steel bars. Surrounding the sleeves 30 are ,coilsprings 31 which tend to hold the two parts together. These springs are Within sleeves or tubes 32 of indurated fiber, straw-board,

veneering, or other compressible material;

The concrete 25 is rammed around the tongues 7 and 9, around the sleeves 32 and around any proper reinforcing rods 20 in the usual manner, any desired means being employed to form the passages 29 and to position the two-part sleeves30 When a rail liesin the notches 5, spikes 27 may be driven down into the retainers where they [will be firmly and securely held by the friction caused by the grip of the springs. The fiber sleeves prevent the soft concrete from which-would prevent any expansion of the springs. Solid sleeves are commercially impractical as the ordinary sheared spikes and cast sleeves cannot be produced with suiiicient accuracy. But by the "use of these springs provision is made for considerable variation in the sizes of the spikes and bore of the sleeves. If a spike head should break olf the spike can be driven down through the passage 29. The plates 28 prevent the sleeves 30 from being driven down into the passages 29 and also hold the sleeves tight against'the top plates 1 and thus prevent tipping of the rails.

Many other changes in the details of construction may be made by those skilled in the art without departing from the spirit of my invention.

Havin now described my improvements,

what I c aim as my invention and desire to secure by Letters Patent is 1. In a. reinforced cross-tie, the combination of a body of concrete and a metal top for the same comprising a flat top-plate having ridges along its edges and inclined sides, said top-plate and sides having tongues integral therewith extending into extend into the concrete and also having apertures to receive rail-securing devices, and having a longitudinal ridge formed with gaps to receive the rails and predetermine the gage of the track.

3. In a reinforced cross-tie, the combination of a body of plastic material, a metal trough-shaped top for the same provided with tongues extending into the plastic material and with holes to admit spikes, and spike-holding devices. molded into the body of plastic material below said holes, each comprising a split-sleeve and a spring surrounding the sleeve.

4. In a reinforced cross-tie, the combination ofa body of plastic material, a metal trough-shaped top for the same provided with integral inwardly extending tongues and with holes for spikes, said metal top extending the entire length of the plastic material, and spike-holding devices molded into the body of plastic material below said holes in the metal top, each comprising a split-sleeve, a coil spring surrounding the sleeve, a fiber tube surrounding the spring, and a plate at the lower end of. each spike-. holding device to support the same.

5. In a reinforced'cross-tie, the combination of a body of concrete, ametal plate extending along the top of the sameand provided with holes for spikes, and spike-retaining devices molded in the concrete below said holes comprising split-sleeves having proper bores to receive the spikes, and resilient means to grip the sleeves onto the spikes.

6. In a reinforce. cross-tie, the combination of a body of concrete, a metal plate ex tending along the top of the same and provided with holes for spikes, and spikeaetaining devices molded in the concrete below said holes comprising split-sleeves having proper bores to receive the spikes, resilient means to grip the sleeves onto the spikes, and means to preventthe' concrete from contact-ingwith said resilient means.

7 In a reinforced concrete cross-tie, the combination of a body of concrete, a metal plate extending along the top of the same and provided with holes for spikes and with tongues extending into the concrete,

vand spike-retaining devices molded in the concrete below said holes comprising splitsleeves having proper bores to rece ve the spikes, coil-springs surrounding the split-.

inc

sleeves .to cause the same to grip'the spikes, In testimony whereof I have signed this ineans to PIGYEHt the wet concrete from specification in the presence of two subscrib flowing around the windings of the springs, ing Witnesses. andf'a supporting plate under each spikei WILLIAM D. FORS YTH. retaining device, said concrete body having NVitnessesf 4 vertical passages communicating with the JAMES F.. GALLAHAN,

bores of said split-sleeves. M. E. THOMAS. f

Images