US642500A - Railway-signal. - Google Patents

Description

No. 642,500. Patented Jan. 30, |000 D. M. SNYDEB. RAILWAY' SIGNAL.

(Application 'mad June 26, 1899.)

(N0 Model.)

Friese PATENT DAVID M. SNYDER, OF ABINGDON, ILLINOIS.'

RAILWAY-sloN/il..A

SPECIFICATION forming part ef Lettere Patent Ne. 642,500, dated January so, 1900;

Application filed June 26, 1899. Serial No. 721,899. (No IncdelJ To all whom it may concern.-

Beit known that I, DAVID M. SNYDER, a citizen of the United States, residing at A'bingdon, in the county of Knox and State of Illinois, haveinvented a new and useful Railway-Signal, of which the following is a speciiication.

This invention relates to railway-signals, and particularly to that class known as train-operated signals; and it has for its object to provide, in connection with a trackway, a simple and eicient mechanism for operating a signal located at a distant pointas, for instance, at a'crossing.

The invention consists of a bell. hung upon a suitable support and provided with leverstrikers having rigid connections with depressible levers arranged in such positions with respect to a rail of the trackway as to receive direct pressure of the wheels of a train passing along the trackway to manipulate said connection and operate the strikinglevers to sound the bell.

In the drawings forming a portion of the specification and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a perspective View of a portion of a trackway equipped with my mechanism. Fig. 2 is a plan View of one of the track-rails and the pressure-receiving levers adjacent thereto, the bell-support and the striking-levers being in section. Fig. 3 is a perspective view of the integral pintle and crank and showing its connection with the adjacent bell-crank lever.

Referring now to the drawings, 5 and 6 represent the rails of a trackway, at one side of which, upon a suitable support 7, are affixed nprights 8 and 9, having at their upper ends a roofing 10, forming a support for abell11. Hinged to the base 7 are striking-levers 12 and 13, having strikers 14 at their free ends positioned to engage and sound the bell 11 when thrown in the direction thereof.

Connected with the lever 13 intermediate its hinge connection and its striker is a rod 15, having connection with one end of a bellcrank lever 16, the opposite end of which is connected with a rod 17, extending to the crank 18 of a second bell-crank lever journaled upon a support 19 at the outer side of the rail 5 and at a suitable distance from the bell 1l. The crank 18 is carried by a shaft 20, with which the bearing of the bell-crank lever is directly made, said shaft 20 being the oscillatory portion of the bell-crank lever above referred to. The final element 21 of the said bell-crank lever extends at right angles to the crank 1S and has a bearing at its outer end for a pin 22, forming a pivotal connection with the head of an angular lever 28, extending upwardly and laterally from the element 21, the lateral extension 24 thereof forming a pintle for the hingedlyconnected meeting ends of toggle- links 25 and 26, Whose outer ends are slidably connected with the base 19 through the medium of pins 27, passed through longitudinal slots in said links and into the base 19. The links 25 and 26 are held normally at the upper limit of their movements by means of U- shaped springs 2S, which springs are arranged with their ends engaging the under sides of their respective links and the contiguous portions of the base 19.

vThe links 25 and 26 are arranged adjacent the rail 5 and in such a position that their connected ends project above the tread of the rail and in a position to receive direct pressure of the treads of the wheels of a train passing along the rail, it being of course understood that the treads of the wheels project slightly beyond the outer sides of the rails.

A similar pair of toggle- links 30 and 31 are similarly connected with the second strikinglever 12, said links being located adjacent the rail 5 and on' the opposite side of the signal 11. Thus it will be seen that if a train pass alongthe trackway from right to left 'the treads of the, wheels will successively engage the portions of the links 25 and 26 extending above the tread of the rail and will act to intermittently depress said links, causing a depression of the element 21 of the adjacent bell-crank lever, and the crank 18 of the latter will draw the rod 17 and operate the lever 16 to draw the rod 15 and throw the striker 14 into engagement with the bell to sound the latter. A train approaching from an opposite direction will engage the links 30 and 31, and in a similar manner, through the medium 0f the similar connections with the striking-lever 12, will cause the latter to sound the bell 11.

IOO

It will thus be seen that I have provided a simple and cheap construction which is not `liable to disorder and the life of which will be exceedingly long without renewal of any of the parts.

Having thus described the invention, what is claimed is- The combination with a traekway and a l signal adjacent thereto, of a plate iixed adjacent the flange of a rail of the trackway, two levers slidably connected with the plate and arranged end to end, the mutually-adjacent portions of the levers being bent laterally over the flange of the rail and then toward each other to lie in a common vertical plane above the flange and in contact with DAVID M. SNYDER.

lVitnesses:

JAMES H. RINER, GEO. L. MOORE.

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