US828725A - Frog for switches. - Google Patents

Description

PAVJBNTED Atm. 14, ,1906.

W J BIUEER FRU@ FUE SWITGHBS. Humanos muni 112.30. 190e WlLLIAM J. EICHER, OF SMITH'IN, PENNSYLVANIA.

FROG FOR SWITCHES.

Specification of Letters Patent.

Patented Aug. 14, 1906.

.Application led MMOQ 30, N051 Serial No. 808,963.

To au whom t may concern:

Be it known that I, WILLIAM J. Ercnnn, a citizen of the United States of America, residinr at Smithton, in the county of Wisstmore and and State of Pennsylvania, have invented certain new and useful Improvements in Frogs for Switches, of which the following is a specification, reference losing had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in railway construction; and the invention relates more particularly to the frogs or Crossovers used in connection with the tracks of a railroad Where the rails of a track intersect.

The primary object of my invention is the provision of novel means, in connection with a frog, for preventing the flanged wheels of the rolling-stock from becoming displaced when iassing over the from To this end I have evlsed an auxiliary iange or ril) which is carried by a frog to guide a wheel when passing over the frog. In this connection the flange or rib may he made integral with the frog when the frogs are manufactured or may he suitably secured to the frogs at pres ent being used. ln providing my improved flange or rib I aim to dispense with a great many accidents which have heretofore oc curred by the rolling-stock being derailed at frogs or Crossovers, a large percentage of the railroad accidents occurring by the rollingstock not perfectly passing over the frog or intersection of two rails.

The invention further aims to provide a frog or an attachment thereto which will he extremely simple, strong and durable, eomaratively inex ensive to manufacture, and

ighly efficient or the purpose for which it is used.

Vlith the above and other objects in view, which will more readily appear as the nature of the invention is better understood, theV same consists in the novel construction, com hlnation, and arrangement of parts to he hereafter more fully described and claimed, and, referring to the drawings aceornpanyin this application, like numerals of reference esignate correspon-ding parte throughout the several views, in which- Figure 1 is a perspective View of a frog con structed in accordance with my invention. Fig. 2 is a top .lan view thereof, illustrating a car-wheel in t ie position it occupies in passing over the l'ro Fig. 3 is a transverse sectional view on t eline :c of Fig. 2. Fig. 4 is a transverse sectional view of a modied form of construction.

' "illy improved frogs or crossovers are particularly adapted for small roads, as used in connection with quarries, coal-mines, and large works, wherein cars are used which are not always maintained in a perfect condition, a Great many cars being used upon which the wheels have become Worm'and consequently tend to wahhle when passing over a track particularly the frogs and switches oi said track. The wahbling of car-Wheels often causes the Wheels when passing over a frog or crossover to mount the frog and cause a derailment of the car as it moves oil of the frog or crossover.

In the practice of my invention I provide a frog-plate l, provided at one end, at the corners thereof, with recesses 2, which forni seats for the ends of rails. (Not shown? The frog-plate is formed or provided on its upper face with flanges 3 3, which extend over the inner wall of the rail-seats at the one end of the plete to the other end of said plate. These 'flanges may be integral with the plate, as shown in Figs. l, 2, and 3, or may he made separate JFrom the plate and secured thereto in any desirable manner, as by screwbolts Il, as seen in Fig. 4 of the drawings.

The frog-plate is provided centrally of its upper face with a groove extending from end to end of the plate and widening outward in a gradual taper from a point intermediate the ends of the plate to both ends of the plate. There is therefore formed by this vroove on the up er face of the plate, toward one end thereoi a somewhat triangular-sha )ed recess 5, the widcnin groove at the ot er end ofthe plate heilig r ivided hy a frog-point 6, substantially V shape in forni, and thus dividing the groove at this end of the plate into two grooves 7.

The ribs 3 3 conform in outline substantially to the side walls of the central groove in the plate. The frog-point is usually proF vided With a notch or seat 8 to receive the end of one of the frog-rails. The groovng of the )late central from end to end in the particular manner descrihed and the provision of the upwardly-extending flanges located a short distance away from the side walls of the oove form ledges 9, on which. the tread of t e wheels rides as the wheels are assing over the frog, as clearly illustrated inY `ig. 2 of the drawings, the flanges 3 3 saleguarding the wheel in its passage over the frog and assuring its traveling,r from the ruil at one end of the frog to the proper rail at the other end thereof.

Vllhet I elaini, and desire to secure by lietters Potent, is-

A railway-frog, Comprising a frog-plate provided. centrally of ite` upper face with a groove extending from end to end of the plete7 the said groove widening outward in e gradual taper from a` point intermediate the ends of the plete to both. ends, and being divided at one end by a V-shaped frog-point, the said frog-plate having notches in its up per face at one end forming rail-seats, and ribs on the u )per fue@ of the plate extending 15 from one endl thereof to the inner wall of the notches the other end in unbroken form and conforming in outline to the side walls of the central groove.

In testimony whereof I al'lx my signature 2o in the l'nesenee ol'4 two witnesses.

WILLIAM J. EICHER.

writnesses:

E. J. MeUooLj Jos. KELLY.

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