US681077A - Railway-crossing frog. - Google Patents

Description

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@Qtrerneys Patenten Aug 2o, mor..

lf: Pouun, 1n. l RAILWAY GRUSSING FROG.

(Appunti ledln 28 1901) no. sag-077..

` Witnesses No. 001,077. 1 VPaf'en'd Aug. 20,1901.`

, E. PouLm, 1n.

RAILWAY CHUSSING FROG..

(Applicneion med mar. 2s. 1901.)

(N0 Model.)

3 Shgets-Shei 3.

. 1,4/6? .92a a my L?? @Miorneys PATENT GFFICE.

jETIENNEfPOULIN, JR., OF ST. GERMAIN DE GRANTHAM, CANADA.

RAILWAY-CROSSING FROG.

` SPECIFICAT-ION forming part of Letters Patent No. 681,077, dated August 20, 1901.

Application tiled March 28, 1901.

` To all whom it may concern: Beit known thatI, ETIENNE PoULnv, J r., a subject of the King of Great Britain, residn ing at St. Germain de Grantham, county of f Drummond, Province of Quebec, Canada,

` have invented certain new and useful` Imi provements in Railway-CrossingFrogs; and Ido hereby declare thatthe following is a full, clear, and exactdescription of the invenf te tion, such as will enable others skilled in the art to which it appertains to make and use the same. n n l n My invention relates to improvements in `l t railwaycrossing frogs wherein two tracks of @V` a railway cross each other at a right angle,`

` and the object that I have in view is to pron i i Vide a continuous bearing for the wheel- 1 l tread While passing the division at the interi section of the rails. A i i n j `2e A further object of the invention is the provision of means for automatically shifting the p position ofthe tread-bearing member by the action of the wheels on'an approaching train, whereby said member is adapted to occupy an operative relation to either of the two sets or pairs of rails at the crossing and to afford the desired continuons tread bearing for trains traveling in either direction across the t crossing. n n

3o` 'With these ends in view the invention "consists in the novel construction and arn rangement of parts, whichwill be hereinafter more fullyidescribed and claimed.

p In the accompanying drawings, forming a part of this specification, Figure 1 is a plan p view of `my improved railway-crossing frog.

Fig. 2 is a side elevation thereof looking at p the lower side of Fig. 1. Fig. 3 is a section on the line 3 3.of Fig. 1. Fig. 4 is another section on thedotted line 4 4 of Fig. 1. Fig. 5 is a plan view of the bed. Fig. 6 is an end `elevation thereof. Fig. 7 is a cross-section on the line 7 7 of Fig. 5. Figs. 8 and `9 are perspective `views of i portions of the frog. Fig. 10 is a perspective view'of one Wheelactuated bar and its arm.

The same characters of reference denote like and correspondingparts in each igure of the drawings. n

5o I will first proceed to describe the bed 5, i on which all `of the operating parts of the frog are supported. This bed is provided with a `post 11.

Serial No. 53,203. (No model.)

raised bearing-surface 6, having an extension `7. Another bearing-surfaceS is provided on the bed, and the extension 7 and the bearingsurface 8 have the fulcrum-posts 9.

10 11 designate the two arresting-posts, which are fast with the bed and disposed between the bearingsurfaces 6 8, and the post 10 has its active` surface a disposed at a right angle to the corresponding surface b of the 12 designates the tread-bearing member,

`the same being arranged to rest upon the bearing-surface 6 and to be shiftable with respect,4 to the active faces ce b of the arrestingposts 10 1l. (See Fig. 1.) This tread-bearing member is represented in the form of a triangular block," which is arranged for its apex to lie adjacent to the two posts l0 11, and said shiftable member 12 has two active `faces c el, the former of which is adapted to lie in the plane of the active face a of the post 10 when said member 12 occupies the position shown in Fig. 1, but when the tread member is reversed or shifted to its opposite position the active edge d of said member lies in the plane of the `active edge h of the other post, 11, as will be clearly understood byreference to Fig. 1. l

The broad essential feature of `this invention lies in the shiftable tread-bearing inember adapted to have either of its edges c d disposed in operative relation to two sets of rails which cross each other at an angle, preferably at a right angle, and any suitable means may be adopted for automatically shifting the position of this tread-bearing member by an approaching train, whereby the member l2 is adapted to afford a support for the wheel-treads and the edge cor d is so disposed with relation to the rails that the wheel-flanges will not strike the member 12 l in line with each other and with one rail of a track. The other pair of bars 14 14` are also in line with each other and with one rail of a crossing track. The pairs of wheel-actuated bars are disposed so that one edge of the bars IOO of each.pairwilloccupy-an operativefrelationi postf11. Trains `on the same track 4are free to the active edge of one post. vIn the exam-- ple shown the bars 13 13a are mounted on the bed so as to bring one edge thereof in the plane of the active face -b of the post 11, and in like manner theother pair` of bars 14 14a are mounted so as to bring one edge Ythereof in the plane of the active face a of the other post 10. Each wheel-actuated bar is hung at a point intermediate of its length on a fulcrum-post 15 by means of the pivot-pin 15,

and said bars are provided with arms'as follows: The bar 13 has an .arm 16, which ex. tends toward an arm 17 on the bar 14a, and

these two arms 16 17 are hung at their inner adjacentends on short posts20 20by means of the pivots 21. The bar 14 is provided with an arm 18, which extends inwardly toward a similar arm 19 on a bar 13a, and these two arms are fulcrumed at their inner adjacent endson the short posts 22 by means of the pivots 22a. p

23 24 designate Vthe evener-levers, each of which is fulcrumed at its middle, as at 25, on th'e short post 26. end portions pivoted, as at 27, to the pair of arms16 17 of the bars 13 14, but the otherv evener-lever 24 has itsend portions pivoted, as at28, to the arms 18 19 of the bars V13a 14.

the latter.

29 30 designate the actuators for theshiftable tread-bearing member, the actuator' 29 being pivoted, as at 9, on the post of the bearing-surface 8, while the other actuator'` 30 is pivoted, as at 9, on the extension 7 of. The actuator 29 is op` eratively connected with the arms 16 17 of the bearing-surface 6.

the bars 13 14a by means of the links 31 32,

the same being pivoted at their outer endsat` 33 33a to said arms 16 17, while the inner ends 37, to -said actuator 30, while the other outer` ends of the links are pivoted at 3S 38a to the arms 18 19, respectively, ofthe bars 14 13a.

With the pivoted bars 14 14au depressed to oc! cu py substantially horizontal alinement -with one rail of the track, the other pair of pivoted bars 13 13a are raised to inclined positions, .and the several actuating devices are made to throw the tread-bearing member 12 into the position shown by Fig. 1, wherein the' edge c of said member lies flush with the active edge ct of the post 12 and with the edges of the depressed bars 14 14, wherebya trainV on the track-rail with which the bars 14 14a are in alinement is adapted to have its wheeltreads ride upon the bars 14 14, the post 10 and the member 12, while the flanges of the wheel are free to pass through the space be-` tween said edge c of the member 12 and the The evener-lever 23-has its i It will be observed that each evener-le-v ver has each end portion pivoted to a wheelbar arm 'at a point intermediate the length of to pass-in either direction over and through the frog without disturbing the relation of- .the.parts; but when a train passes on the other track it crosses the first track at an angle through thefrog, and the parts are automatically shifted in the following manner: As the wheel of the approaching train strikes one of the bars 13 or 13a both of said bars 13 13a are simultaneously depressed through the action of the connecting mechanism,

while thebars 14 14a are elevated from a horizontal to inclined positions, thus reversing the positions of the pairs of bars. This depression of the bars 13 13a sets in motion the intermediate connecting mechanism by which theposition of the tread-bearing member 12 is reversed, whereby said member is shifted so as to bring its active edge cinto alined `relation with the corresponding edge b of the post 11 and with one edge of the bars 13 13, The gap or space between themember 12 and the post 11 is closed bythe shifting .of the member, and at the same time a space is opened between the edge d and the post 10,

so as to permit of the passage of the wheelvflanges between the member and said post 10, while the edge d of said member affords Ithe desired continuous tread-bearin g through the frog.

Changes within the scope of the -appended claims may be vmade in the form and proportion of 4 some of the parts, while their essen `t-ial features are retained and the spirit of the invention is embodied. Hence I do not desire to be limited to the precise form of all the parts as shown, reserving the right to vary therefrom.

1. In a railway-crossing frog, the combina tion of wheel-actuated bars hung tov vibrate on horizontal axes and arranged in pairs and withthe bars of one pair disposed in the same vertical plane, limiting-posts in the planes of the respective pairs of bars, a shiftable treadbearing element in active relation to one pair of bars and one limiting-post, actuators disposed on opposite sides of the tread-bearing element, and connections between the actuators and the bars of opposite pairs, sub- -stantially as described.

2. In a railway-crossing frog, the combination of limiting-posts having their active faces disposed in planes intersecting at an langle corresponding to the position of crossing `trackrails,a shiftable element having its ac able element, substantially as and for the purposes described.

3. In a railway-crossing frog, the Acombination of two'pairs of wheel-actuated pivoted bars disposed at an angleone to the other, a linked tothe arms of opposite pairs of wheelro shiftable tread-bearing element arranged in l i operative relation to the bars of one pair, in-

wardly-extending arms on the bars of the opposte pairs, evenaar-levers each hung between the bars of opposite pairs and having operatve connection with the arms of said bars,

and the actuators independently pvoted to y the shiftable tread-bearing element and each actuated bars, substantially as and for the purposes described.

In Witness whereof I have hereunto set my hand in the preseneeoftwo Witnesses. i

ETIENNE 'POULIN J R. Witnesses:

J. A. MARION, T. MYNARD.

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