US537601A - William milton brown - Google Patents

Description

(No Model.)

W. M 'BRo-W'N..

RAILWAY SWITGH. No. 537,601. Patented Apr.` 16, 1895.

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Unita Status artnr ratten.

VILLIAlWI MILTON BROWN, OF JOHNSTOWN, PENNSYLVANIA, ASSIGNOR TO THE JOHNSON COMPANY, OF SAME PLACE.

RAILWAY-SWITCH.

SPECIFICATION forming part of LettersPatent No. 537,601, dated April 16, 1895.

Application filed January 2, 1895. Serial No. 533,578. (No model.)

Vwhich the through or straight track is unbroken or presents a continuous surface for the car wheel to roll upon. These switches are desirable where the bulk of the travel is upon the through track, the siding track be ingonly occasionally used.

My improved form of switch is specially adapted to street railways, and in this connection I will describe it.

In the drawings Figure l represents ageneral View of a portion of railway track containing a switch embodying my invention. Fig. 2 is a top view of the switch showing it set to deiiect a car from the straight to the siding track. Fig. 3 is a top view of the switch showing it set to allow a car to travel undisturbed upon the straight or through track. Figs. 4f, 5 and 6 are sections upon lines X, Y and Z respectively of Fig.,2.

I will now describe the switch in detail.

R R are the main or through track rails. and r, i" the branch-O or siding rails. The main rails R are usuallyv provided with a side tram t, while the branch-off rails -r may or may not have grooves and guards g. On the gage side or inside of the main rail R is attached the frame or casting F. This frame affords a support and protection to the tongue T pivoted therein. The construction of the tongue is as follows: At each end it is pivoted in the frame F by pivots P on an axis substantially parallel to the line of the main rail R and is so shaped that in one position, that of Fig. 2, it lies upon the tram t and close against the gage line of the main rail,

. and when thrown over in the position shown is below the top of the head of the rail R, preferably far enough below to allow the flange of a car wheel to pass the end without striking it. This incline gradually rises to ward the 'center of the tongue until it reaches the level of the top of the rail'R. Adjacent to the incline is the guard f, which commences substantially parallel with the rail R, 6o

but curves toward and across it and forms practically acontinuatiou of the guard g of rail r. From the top of inclineI to the point o where the guard g crosses the gage line of rail R the metal of the tongue forms a ioorf venient way for attachment to rail R. I have shown it as a castingjolned to the ordinary rail at J. Likewise the mate M (Fig. 1) may be formed of a casting and attached to the rail R without any mutilation of the same.

The oorf of rail fr should commence at 8o rail R, level with the top of the head of rail R and be inclined downward as it curves away therefrom. Likewise the end of the head of rail r may be elevated above that of rail R at a distance equal to the depth'of the 85 liange of a car wheel, fora purpose hereinafter explained.

The action ofthe switch is this: If a car approaching from the left of Fig. l should pass over to the siding track r the tongue of the 9o switch isthrown to the position in Fig.. 2. As the car comes along the liange of the wheel passes upon incline I and as it rises thereupon it bears against guard g. W'hen the wheel reaches the lioorf, the bottom of the ange is level with the top of rail R and is forced by the guard g over, upon, and across it. By the time it leaves the end of guard g the car has been sufficiently deflected from the line of track R to pass upon the siding rco track r. The wheel therefore rolls across the head of rail R upon the elevated iioorf and head of rail r and thence down into the siding track.

The tongue is inserted by en- 7o the ncessaryguard g and ain enabled to I have shown at S a stopuformed upon the i casting and adapted to support the center of lthe tongue T against the side thrust of the car wheel as it is deflected out of its straight path. One or more of these stops maybe ernployde l e Where it is desired that the` car should con'- tinue upon the straight track, the tongue T is thrown over into the pocket in frame F2 as shown in Fig. 3, and the rail R is left clear and unobstructed. u

I am aware that svritches of this class have been employed in Whichthetongue has been provided with substantially the same form of incline and guard as I have herein described, but they have been pivoted upon a vertical pivot at one end and have necessarily been longer than the effective portion of guard g and consequentlyheavierand occupying more space in the street. By iny'rco'ns'trution I am enabled to use a tongue tio longerth'an firmly support it against any side thrust along itsside..

When I spe-ak of anu'jnnroken miam fait, I refer only to' thetop of 4the head of the rail, that portion upfo'nyvhi'ch the car Wheel travels; as it is obvious that were they-rail to` be pro'- vided vifitiiy a groove and guard ,it Aiwfi'll'd.be necessary to remove a 'portion of the guard to permit the tongue to lie against the gage line of the rail. I

g The train with which the straight track rail is usually provided affords a very suitable floor for the tongue to lie upon While against th' lil.

. yHaving thus described my invention, what claim, and desire to protect by Letters Patent, is-

1. In an unbroken main line switch, in conlbination with an unbroken through rail and a siding rail, a frame attached to the main rail on its gage side, a pocket in said frame and a tongue in said pocket, said tongue being pivotedv on a horizont-al axis substantially parallel with the main rail and adapted to lie against the gage line of the rail or be thrown overinto the pocket leaving the through track clear.

Incolnbination with an unbroken track rail aving a side tram, a frame secured to the 'rail on the train side,` said frame having L pocket, and' a tongue lying in said pocket and longitudinally pivoted therein, said tongue being so constructed and arranged as to lie upon said train and against the gage lineof the rail or be thrown over into the pocket 'leaving the ytrack clear.

Y In testimony ywhereof I have atixed my signature in presenceof two witnesses.

{ u WILLIAM MILTON BROWN.

Witnesses: u

RCHARD EYRE, l GEORGE B. SHEPLEY.

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