US137882A - Improvement in railroad frogs - Google Patents

Description

.UNITED STATES PATENT GFFICF..

GEORGE W. BILLINGS, CHICAGO, ILLINOIS.

AIMPROVEMENT IN RAILROAD FROGS.

Specification forming part of Letters Patent No. 137,882, dated April 15,1873 5 application filed October 8, 1872.

To all whom it may concern:

Be it known that l, GEORGE W. BILLINGS, of Chicago, in the county of Cook and State of Illinois, have invented a certain new and Im- `proved Railway Frog; and I do hereby declare that the following is a full, clear, and complete description thereof, reference being had to the accompanying drawing making part of the same.

Figure 1 is a plan view of' the frog. Fig. 2 is a side view. Fig. 3 is an end view looking in direction of the arrow. Fig. 4 is an end view of a rail with its re-enforcing angle-iron attached thereto, showing the mode of fastening the bolt. Fig. 5 is a detached sectional view of the spring and housing whereby the free rail is held in place.

Like letters of reference refer to like parts in the 4several views.

The invention relates to improvements in spring-rail frogs; and the improvement consists in the mode of fastening the rails to the bed-plate by means of hooked bolts headed beneath the plate, and also in furnishing the housing ordinarily used to protect the rubber spring which retains the spring-rail with win gs on each side, which afford a more extended bearing upon the rail.

1n the drawing, Fig. l, A represents the ties of the road, on which the rails are laid and secured in the ordinary way. B is the central section of the frog, which consists of the rails C D, each rail being the i'nner one of two tracks, the rail C being in the line of the rail E, and the rail D being in the line of the rail F of the two railway tracks referred to. The rail F, corresponding in line to the rail D, is firmly xed to the ties and bed-plate G of the frog,

whereas the rail E is secured to the tie onlyl by its end H', while its opposite end I is left free so that it may have a lateral or transverse movement, but which, however, is prevented from displacement by a guide-bar, J, passing through the end of the rail ina slot, said bar being bolted or secured to the bedplate, and also fastened in such manner as to be withdrawn andthe spring-rail removed without lifting the frog out of the track. This is done by having the bar in a parallel form and theI slot and fastenings so arranged as to slide the bar in place without obstruction. J is a stop, the purpose of which is to assist in restraining the rail from too much lateral movement. K is a bolt passing through the rails E F. On each end of the bolt is a housing, L, with expanded wings, an enlarged detached sectional view of which is shown in Fig. 5. In said shell of thehousing is a rubber spring, and through which the bolt passes.

c is a follower tted in the cup of the hous-l Y ing so that it presses on the rubber spring, which is pressed inside by the nut b. By screwing the nut e the spring is compressed so as to entirely fill the cup of the housing, excluding the water, which often covers the track, and thereby conducing to preserve the rubber from decay. The spring thus confined acts as a relief to the spring-rail when wheels are passing through the spring-throat.. In providing for the bolt through the necks of the rails a hole is necessary, and to restore the rails to their original strength the housing is made to hold the spring and bolt, and also, by the elongation of the wings iitted to the neck of the rail, the said wings act as a reenforcement to the rail, and aid the rail to spring back to its place of rest. On the side of the spring or movable rail is secured an angle-iron, M, Fig. 2, an enlarged view of which is shown in Fig. 4, in which iigure it will be seen that the angle-iron is fitted close to the web and the base of the rail and rmly bolted thereto. iron the strength of the rail is re-enforced; hence it is less liable to break or to bend in consequence of the force of the wheels being exerted upon it, and more especially are rails liable to such accidents when made of steel and loose, as is the re-enforced rail referred to.

The sections of the frog are secured to the bed plate or plates by hooked rivets O, Fig. 4.

The hooks of the rivets are caught on the base of the rails, whereas the shank is projected through the plate and headed down, as shown in said Fig. 4. In this way of fastening down the frog the weakening of the rails by boring By the addition of this angleholes through its base, as is ordinarily done, is avoided; henee the original strength of the rail remains intact.

Claims.

the rails and bed plate or plates Gr, as and for the purpose set forth.

, 2. A railway frog, consisting of the re-enforced spring-rail E, section B, stop J', guidebar J, in combination with the sprin g a, Winged housing L, and rod or bolt K, substantially as and for the purpose set forth.

GEO. W. BILLINGS.

' Witnesses:

J oE. S. STETTINIUS, JAS. MELDRUM.

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