US99346A - Improved railway-frog - Google Patents

Description

N.ETERS, FHOTO-LTHOGRAPHER WASHINGTON D C dini-ted' Ctatr' @met @titille D. C. PIER-CE., 0F CLAYTON', NEW YORK.

Letters Patent No. 99,346, dated February 1, 1870; antedaied .amcary 31, 1870.

IMPROVED RAILWAY-FROG.

The Schedule referred to in these Letters Patent and making part of the same.

Railway-Frogs; and I do hereby declare that the fole lowing is a full,lclear, and exact description thereof, reference being had to the accompanying drawings, makmg part of this specification, and to the letters of reference marked thereon, like letters indicating like parts wherever they occur. v

To enable others skilled in the art to construct and use my invention, -I will proceed to describe it. My invention relates to railway-frogs, and consists in constructing them of an upper or face plate, with suitable openings throughit, in which are inserted the frog-point and guard-rails, made of-iron or steel, in such a manner as to ybe removable, and of a lower or base plate, so constructed that the face plate may he rmly secured to it, and sothat an elastic material of any suitable kind mayA be interposed between the plates; and'also in the novel construction and arrangement of end-pieces for'coimecting the frog with the track-rails.

In the drawingsi Figure l is a top plan view;

Figure 2 is an edge view; and

Figure 3 is a cross velt-ical section on the line :zr-x of figpl,

In constructing my frog, 1 make an upper or face plate, C, `out of suitable material, and of any size desired, and provide it with openings corresponding with the shape and size of the face ot' a frog-point, Il, and guard-rails F, or of any other frog-point or guard-rails that may be required.

These frog-points and guard-rails I makev of steel, with flanges a at their` base, so 4as to give them a broad support, and then'insert them through the under side of the face plate C, as' clearly shown in igs. l and 3, interposing, at the same time, an elastic material, I), of wood, paper, or other suitable material, between the upper side of the flanges and the under side of the face plate, as shown in iig. 3.

I then make an under or base plate, A,of the same vsize and form with the face plate C, constructing it with a depression, b, on its upper face, for the insertion of any suitable elastic material, at shown in ,said g. 3, and also with flanges G, for 'connecting it to the sleepers.- A

These plates, thus constructed, and with the frogpoint and guard-rails inserted, I then fasten together with screw-bolts and nuts d, having first interposed the elastic material proposed to be used. This elastic material, I so place and arrange as to form the bearing, both on the upper and lower sides of the flangesV of the frog-point and guard-rails, as well as between the plates themselves, as clearly shown in tig. 3.

The ends of my frog, I provide with pieces B, having a notch or shoulder, C, on their upper inner side, for a projection of the base plate A to bear upon, as shown in g. 2, and' also for the anges of the guardrails at one end,-and the flanges of the frog at the other, to extend over and hear upon.

These end-pieces B are attached to the ends of the i frog, just in front of one of the sleepers, and so that its highest upper face may come under the end of the `upper plate C, as shown in ig.1.

1f desired, these end-pieces B may have their sides extended up with lugs e, formedso'as to clasp on the upper side of the face pla-te O, vas shown in the same figure.

My frog, thus constructedfhas manyadvantages.-

Being made of two' plates, it can be conveniently taken apart for the removal or renewal of the frog-point and guard-rails, or any one of them. To do this, it is only necessary 'to uuscrew the nut, as shown in iig. 1, and lift up the face plate,when the i'ogpoint or guardrails can be taken out, o'r either of them, and others pu't in their place; and in the same manner the interposed elastic material-can be removed, and other ma terial put in its place, if desired. '1

As is well-known, railway-frogs, as ordinarilycom structed, wear outrapidly, and are a source of heavy expense to railway companies; but as my frog-points and guard-,rails are made of steel, and also made removable, t is evident that my improved frog posses/ses many advantages over the old frog, and can be used at a great saving of expense inthe long run, as the frog-point and rails can be removed as often as desired.

By the vuse of the end-pieces B, constructed and connected to the frog as describedabove, it-will be seen that the ends of the track-rails and vthe ends of the guard-rails, or the, end of the .frogpoint, with which they connect, are kept in such position that their upper surfaces are always in the same horizontal plane, so that thereis little or no jamming of these ends by the wheels of the passing.- locomotive, car, or train.

While my railway-frog is.i constructed of two plates, an upper and a lower, it is evident that the principal object of the lower plat-e is to supply a bearing or support for the frog-points and guard-rails, and that other bearings might be substituted for the plate.

Having thus described my invention,

1. A railway-frog, consisting of the plates A and C, frog-point'E, guard-rails F, and elastic material D, all constructed and arranged substantially as herein described.

2.' In combination with a railway-frog, as herein de.- scrbed, the end-pieces B, constructed and arranged substantially as and for the purpose set forth. v

3. In the construction of railway-frogs,inserting the frog-points and guard-rails, provided with anges atv their base, through the frog-plate, substantially as v herein described and for the purpose set forth.

I). C. PIERCE.

Tit-nesses PHIL. T. Dones, H. IB. Munn.

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