US823668A - Alarm-signal arrangement for use in connection with railways. - Google Patents

Description

MTA/5555.

PATENTED JUNE 19, 1906.

UNITEDI STATES PATENT OFFICE. RICHARD WILLIAM CLERY, or MARYBoItoUeI-I, IRELAND.

u ALARM-SIGNAL RBANGEMENT FOR USE lN CONNECTION WITH RAILWAYS.

Specification of Letters Patent.

` Patented June 19, 1906.

I Application filed January 29. 1906. vSmal No, 298.385.

To (all whom/it may concern.-

Be it known that I, RICHARD WILLIAM' C LERY, a subject of the King of `-reat Britain, residing at Sunnyside, M .yborougl1, Queens county, Ireland, have invented certain new and useful Improvements in Alarm- Signal Arrangements for Use in Connection with Railways, of which the following is a specification. This invention' relates to improvements in alarm-signal arrangements for use in connection with railways, the object being to provide a cheap and simple device by means of which the driver and guard of a train, as well as the signalman in the point-box, can be informed when the train 1s tending to pass the "distance signal, so that the former may be pulled up before entering the home section.

The invention is described with reference to the accompanying drawings, in which- Figure 1 is a sideelevation, partly in section, ot' so much of a railway-engine as is necessary to illustrate the invention; Fig. 2, a front elevation of a signal-post; Fig. 3 a side elevation, partlyin section, on an enlarged scale, of the alarm-bell a paratus, while F' 4 isa plan of same throng the top of the cali.

In carrying out the invention a rod c, which depends downward, is secured to the semaphorearm a of the distance-signal post b, the lower end of such rod being slotted at d and coupled to the` short arm e of a two-part lever pivoted to the signal-post b, the opposite end or long arm f of said two-part-lever projeetin suiliciently forward over the rails gto be in linewith the engine and carriages on said rails and at a slight distance above the general height oi' such. ()n the engine and also on the guards van a tube or tubular bracket h is secured, through which passes a spring wire or llexible arm or lever fi. The

referred arrangement is-to couple the rod or ev'eri, to a bell-crank lever or arm the outer end of which is arranged-to come in contact with the armfof the pivoted lever on the signal-post when the semaphore-arm is at danger or in the full-line position indicated m Fig. 2. The rod '1l and lever are/normally kept in the position indicated by dotted lines in Fig. l by a spring c. The lower end ol the rod 'i is coupled to a pivote-d lever l, preferably arranged beneath the roo'l" et the eab o'l" the engine, the iree end et the last-named lever engaging with the mechanism .et a springcontrolled alarm-bell or gong m, located on the engine or in the interior oi the guards van',

so that the driver or the guard may have his attention drawn to the fact that the signal is lat danger, thereby enabling him to sto the train before an accident can occur. suitable arrangement of alarm-bell mechana pivoted hammer n, provided with arms o, contactlng with the teeth of awheel p, mounted on a stud q, said wheel being controlled by e way tol store up the necessary power for rotating the wheel to operate the hammer and give the alarm. Below the wheel suitable notches are provided with which the pivoted lever l may engage, so as to hold the Wheel from rotating when the semaphorearm av is in the line clear position indicated by the broken lines in Flg. 2. On. the other hand, when the arm f is in the position indicated in full lines inFi 2 the lever engages with it, is depressed, y V the lever l from the lnotch in the wheel, allowing the gong or bell to be'sounded to draw the attention of the driver or guard.

The arrangement of arms and levers is also trolled alarm-bell located ,in the signal-box, so that as soon as contact is made in the manner previously `indicated this bell is also rung. The preferred arrangement for this pur oscis to secure a ulley s on the arm f of the ever pivoted to t e si nal-post, so that when the lever j is being epressed by contact with the arm the latter isslightly lifted to enable the pulley s to come in contact with a bracket t, secured to the signal-post b. This bracket, and likewise the bracket u, on which the pivoted lever is mounted, are .wired to an electric batte placed in a suitable position, and in whic circuit an ordinary electric bell is also arranged. The operation described completes the circuit and rings the bell, which is located in the sign alboX. An insulating-piece may be provided on the bracket t, so that when the signal is lowered by the signalman to allow a train to` pass the bell-circuit to the signal-box will be lirst made and then broken, thus avoiding the constant ringing of the bell while the signal- `ar1n is down. The slot at theI lower end ol" the rod c enables the pivoted lever ef to be operated for ringing the signal-box bell without affecting the position ot.' the semaphorearm a. In lace of the electrical contact arrangement I escribed a spring-controlled button or the like may be,arranged onthe arm f ism for this purpose may consist of the bellm,

a spring r, which can be wound up in any suitab and so releases.

in communication with an electrically-con- Ioo at a point to be engaged by the arm y', this button being wired in a suitable manner' tol the signalcabin, as before described. In such a case the bracket t and pulley s would be dispensed With. i

The device is specially applicable during dark and foggy'weather, and the armi or l e ver j may be arranged tobe withdrawn 1n clear Weather, so as not to come in contact nected thereto, of a lever carried by said post and connected withy said arm arranged and adapted to be contacted by means carried. by a moving vehicle, an alarm mechanism carried by said vehicle and adapted to be set oli by the movement of said means', and an electric circuit adapted to be closed by the movement of said lever.

2. In an alarm-si al device, the combination With a post andgalsemaphore-arm carried thereby, of means carried bysaid ostand connected to said arm, arranged an adapted to be actuated by a moving vehicle and when so actuated to close an electric circuit and to release an alarm mechanism carried by said vehicle.` f

3. In an alarm-signal, device the combination with a signal-post carrying a pivoted semaphore-arm, of a lever pivoted to said post, a rod connecting one end of said lever With the semaphore-arms, means on the lever adapted to close the circuit of an electric alarm such means comprising a contact part fon the signalost and a contact part carried with the semaphore-arm, means on the lever adapted to close an electric circuit for sounding a signal, spring-controlled means carried by a moving vehicle for' engaging said lever, a further lever connected to said spring-controlled lever and an alarm-bell mechanism carried by the'moving vehicle and adapted to be controlled thereby.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

RICHARD WILLIAM CLERY Witnesses:

JOHN WALsH, CHRISTOPHER FARRELL.

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