US1118251A - Railway-track. - Google Patents

Description

J. M. WILSON.

RAILWAY TRACK.

APPLIGATIOH FILED JUNE 19, 1914.

Patented Nov. 24, 191i Fl a "I 6 BaHasfed Tracks Trucks resring on wooden stringers a 5' 2 g i 'm r /6 m g u) w L E L- o u o 5 s 5 u u o n (c m I1 D I B a 0 I 9 a 9 Q V f v awuamfoz Witt Lamas W GMO'LMWQ THE NORRII PETERS CO. FHOTOILITHOH WASHINGTON. D. C

JOHN M. WILSON, or BROOKLYN, NEW YORK.

RAILWAY-TRACK.

Specification of Letters Patent.

Patented Nov. 24;, 1914.

Application filed June 19, 1914. Serial No. 846,055.

To all whom it may concern:

Be it'known that 1, JOHN M. 'WILsoN, a citizen of the United States of America, and resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Railway-Tracks, of which the following is a specification.

This invention relates to railways and particularly to elevated tracks for railways.

An object of the present invention is to provide and produce a structure for permanent elevated tracks for railways such as are commonly used for building roads in cities or other districts where a permanent structure is desirable and where it is not possible to employ the usual bridge constructions. I

It is well known that in constructing railways through cities, a great deal of elevated work is produced and in some instances heavy concrete construction is resorted to, but such construction is expensive as compared with that of the invention herein, while it does not possess any advantage as to strength or durability, as compared with said invention. In other types of elevated railways, concrete retaining walls are employed for confining a fill of earth on which the tracks are supported. Such construction, however, has the disadvantage of subjecting the confining walls to lateral strain due to pressure on the fill from the pounding action of moving rolling stock over the tracks and especially where such tracks are near the sides of the roadbed and close to the retaining walls.

In the present invention, the disadvantages enumerated and other inherent defects in such constructions are obviated and provision is made for maintaining or supporting the load irrespective of the fill and the pounding action, due to the movement of the rolling stock, is taken up and absorbed by means independent of the fill and the fill is employed initiatively in the invention as a sway brace for the track supports.

The invention is susceptible of modifications but for the purpose of showing the applicability of the invention to practical use, two forms of the invention are illustrated herein, reference being had to the accompanying drawings in which like characters denote corresponding parts in the several views, and in which Figure 1 illustrates a transverse sectional view of a railway ;-Fig. 2 illustrates a similar view of a modified construction; Fig. 3 illustrates a-longitudinal sectional view of the form shown in Fig.1; and Fig. 4; illustrates a longitudinal sectional view of the form shown in Fig. 2.

In the form shown in Figs. 1 and 8, a pedestal foundation 1 is employed on which supporting rods or posts of concrete 2 are stationed, the upper ends of the said members 2 having transversely disposed caps 3 preferably of concrete and reinforced concrete slabs i extend longitudinally of the track, supported by the caps as shown in Fig. 3. 1n the embodiment of the invention shown in Figs. 1 and 3, ballast 5 is applied to the concrete slab, the said ballast'being used in connection with the cross ties 6 which support the rails 7.

The train supporting structure just described would of itself support the trains but in order to guard against excessive noise, due to the travel of the trains, the supporting structure is inclosed and surrounded by a fill of earth held in confinement by retaining walls such as 8, the retaining walls on the two sides of the railway being connected by brace rods 9 provided with turn buckles 10 for regulating the tension on the said rods.

In the modification illustrated in Figs. 2 and 4%, reinforced concrete piles 11 have their ends embedded in a pile foundation 12, the said piles constituting supports for the track, through the medium of the concrete caps 13 resting on the piles and extending transversely of the track, the said caps constituting supports for stringers 14: which may be of wood and the said stringers having cross or bridge ties 15, to which the rails are secured.

Regardless of the construction of the track support, retaining walls are employed on each side of the track support and the spaces between the said walls and between the posts or piles are filled with earth, one object of which is to deaden the sound and another object of which is to sway brace the support ing structure.

In carrying the invention into practice, the retaining walls are designed to support only filling between them and as stated the trestles or track supporting structure is of such strength as to carry the load. The retaining walls are relieved of impact of the train loads and can be made relatively thin as they are tied together and will withstand pressure of the contained filling. The tie or brace rods are inclosed in water proofing material 16 and in constructing the invention, the walls need be carried down only far enough below the ground surface to prevent lateral displacement of the earth foundation, due to the load of the fill and trestle. The trestle can be built of concrete or treated timbers or combination of both and eco nomical constructions have been described. The form shown in Fig. 2 of the drawing is designed to obviate use of ballast and as the stringers in this construction are near the surface they could readily be replaced when necessar The supports for the track may be driven pile or concrete resting on sills or pedestals, according to conditions of use. Some temporary sway bracing will be necessary under tracks, before the filling is placed.

The type of construction herein shown can be used to advantage where the height is extraordinary for a structure of its kind and the permanent foundation is at great depth. In case of impairment to the supporting structure, the filling will act as a support'to prevent collapse of such structure and will maintain the load temporarily and until repairs can be effected, so that there is little if any liability of damage which would resalt in wrecking the structure without pre liminary disarrangement which with ordinary care could be observed and rectified.

If height is not excessive, interior tracks may be supported by temporary wooden trestleswith the idea of having them rest on the filling after trestle has decayed and fill become settled, using permanent trestles for the outside tracks only; or, if height permits interior tracks'may be placed on filling at first.

I claim In a railway track, suitably held posts of such length as to require some lateral support, concrete caps resting on said posts and extending transversely of the track, cross tie supporting members carried by said caps, retaining walls at the sides of the track extending upwardly substantially flush with the track surface, brace rods connecting the said side walls, and a filling between the said side walls in which the posts are embedded, said filling constituting a lateral supporting means for said posts and acting as a sound deadening medium.

In testimony whereof, I afiix my signature in the presence of two witnesses.

JOHN M. WILSON.

Witnesses LOTTIE E. BARKLEY, PEARL A. PUTNAM.

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

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