US717020A - Railway fog signaling apparatus. - Google Patents

Description

Patented Dec. 30, I902.

J. H. PLEASANCE. RAILWAY FOG SIGNALING APPARATUS.

(Application filed May 81, 1902.)

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J. H. PLEASANCE. RAILWAY FOG SIGNALING APPARATUS.

(Application filed May 31, 1902.)

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RAILWAY FOG SIGNALING APPARATUS.

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lhyrrnn STAT S PATENT OFFICE.

JOSEPH HERBERT PLEASANOE, OF EAST HAM, ENGLAND.

RAlLWAY FOG SIGNALING APPARATUS.

SEEGIFIUATION forming part of Letters Patent No. 717,020, dated December 1902- Application filed May 31, 1902. Serial No. 109,722. (No model.)

T0 all whom, it 'mag concern:

Be it known that LJosnPH HERBERT PLEAS- ANCE, a subject of the King of Great Britain, residing at East Ham, in the county of Essex, England, have invented a new and useful Improvement in Railway Fog Signaling Apparatus, (for which I have obtained a patent in Great Britain, No. 8,647, hearing date April 14, 1902,) of which the following is a specifl cation.

This invention relates to improvements in or connected with railway fog signaling apparatus, and has for its object to provide a comparatively inexpensive apparatus which enables a Signalman or other operative to acquaint the driver of an engine with the state of the line ahead in foggy weather or at other times.

In order that this my said invention may be the more readily understood and carried into practical effect, reference is hereby made to the accompanying sheet of illustrative drawings, wherein- Figure 1 is a diagraminatical plan view of a permanent way with that part of my apparatus which is controlled by the signalman in its position to indicate danger. Fig. 2 is a side elevational view thereof. Fig. 3 is a side elevational view of the operating apparatus carried by the engine, shown independently. Fig. 4.- is afrontelevational view thereof, while Fig. 5 is a side elevational view of a portion of an engine with my operative apparatus applied thereto.

Referring to the drawings, in which like letters of reference indicate corresponding parts wherever occurring throughout all the figures, (t represents the rails of a permanent way, which rails are preferably carried upon sleepers I) in the ordinary manner.

Rigidly attached to one of the sleepers I) a convenient distance from the signal-post c I arrange transversely of the rails a bar d, the ends 01 of which are arranged to project vertically to a convenient distance, theupper ends of these projecting ends being preferably provided with loosely-mounted rollers (1 A short distance farther on in the direction of traveling I arrange in guides g, carried by another of the sleepers b, a bar 6, having vertical projections 6', provided with rollers e and being substantially similar in construction to the bar 61 before mentioned. One of the ends of this bar 6 is, by means of a wire, chain, or other flexible connection a and pulleys e associated with an operatinglever e in the signalrcabin. Attached at one end to the bar 6 aforesaid at a conven ient point and at the other end to one of the rails or to some other rigid part of the permanent way I arrange a spring e The end of the bar e opposite to that to which the flexible connection 6 is attached is preferably'extended slightly and arranged to slide in a socket e At a convenient distance farther on in the direction of travel and preferably a short distance from the ordinary sign'al-post c I arrange a second sliding bar f under the control of the signalman or other operative, which barfis of precisely similar construction to the bare aforesaid and is pro vided withexactlysimilar fittings and connections.

Carried in a convenient position upon the engine, preferably adjacent to the enginecab, I arrange a bracket 72, to which a lever iis pivoted in a convenient position. Two preferably india-rubber springs j, having looped ends j, are each attached at one of their ends to the upper end h of the said pivoted lever 1', while the other looped ends f of,

such springs are attached either to vertical projections of the bracket h or to some other fixed point. The lower end i? of the lever t is bent upwardly to provide for the ready attachment of an extension 71 This extension "6 is so disposed that when the engine upon which it is carried passes the bar d it will strike against one of the vertical projecting ends 61 thereof and also one of the vertical projections upon either the bar 6 or the bar f, whichever is in its operative position, as will hereinafter more fully appear.

In operation as the engine carrying the pivoted lever 41 aforesaid passes the rigid bar d the lower extension i thereof comes in contact when passing with one of the vertical extensions d thereof, and co nsequentlythe said lever i is deflected from its vertical" position in opposition to the springs j. This causes the upper end thereof to pull upon a flexible connection attached between it and the lever of a hell it. Immediately the lever 2' and its extension i passes the obstructing ends (1 of the bar the said lever regains its normal position under the influence of the springs j and the hell it is rung, the lever thereof flying back to its normal position. This notifies the engine-driver that he must slow u-p unless the bell 7r rings again immediately. This will not occur when the apparatus is set at danger, as shown, as the sliding'bar 6 will have been drawn over by the signalmen in opposition to the spring 6 and the vertical projection thereon will not then lie in the track of the lower extension i of the lever i. The engine-driver will consequently proceed at a slow speed toward the signal-post c, and just before reaching it the engine will pass the bar fand the lower extension i of the lever a. will contact with one of the vertical. extensions f thereon, thus ringing the bell k on the engine in the manner before described. This denotes to the engine-driver his duty to immediately stop. The driver must not now proceed farther until signaled to do so by the Signalman. This is effected by the ringing of an independent bell Z under the control of the signalman, arranged in a convenient position close at hand and capable of being operated, preferably, by means of a lever Z in the signal-cabin, which lever is connected with the bell, preferably by means of connection Z, working in conjunction with pulleys Z It willv be understood that if the line is clear the bar e will be in its operative position and the bar f will be drawn over by the signalman through the medium of connection f pulleys f and levers f in opposition to the spring f to a position with its vertical projectionsf, provided with rollers f out of the track of the lower extension i of the lever 't' aforesaid. It will also be understood that the rollers d 6 and f are provided to reduce friction as much as possible.

The provision of vertical obstructing projections in corresponding positions at each side of the rails insures the operation of the device should the engine be traveling back to front,or,if desirable,pivoted bell-operating levers may be arranged each side of the engine.

The sockets e and f are provided to limit the travel of the bars 6 and f under the influence of their springs e and f to insure the vertical projections e and f always lying in the track of the lower extension 2' of the lever '11 when in their operative positions.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. Theimprovementsin railway fog signaling apparatus consisting of a pivoted lever having a detachable lower extension said pivoted lever being carried by a bracket carried upon an engine and being held normally in a vertical position by india-rubber springs attached between its upper end and fixed points on each side thereof, said upper end being connected with the lever of a bell carried by the engine; in combination with three obstructions arranged at intervals in the permanent way one of the said obstructions being rigidly attached to one of the sleepers carrying the rails, the other two being capable of withdrawal from the track of the operating-lever carried by the engine; and an independent bell in a suitable position under the control of the signalman, substantially as and for the purposes hereinbefore described and shown.

2. In railway fog signaling apparatus the combination with a pivoted bell-operating lever carried by an engine; of transverse sliding bars arranged in guides such transverse bars having vertical projections at or near their ends, the upper ends of such vertical projections being provided with looselymounted rollers, such transverse bars being at one end connected by suitable means with an operating-lever, their other ends being provided with extensions arranged to move in sockets, the travel of such transverse bars, under theinfluence of controlling-springs, being limited by such sockets substantially as and for the purposes hereinbefore described and shown.

JOSEPH HERBERT PLEASANCE.

Witnesses:

DAVID WISEMAN, SYDNEY HOOPER.

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