US1042482A - Signaling system. - Google Patents

Description

BEST A? COPY H. 0. HUGH.

SIGNALIEG SYSTEM. APPLICATION FILED IEB.15, 1909.

lmz zn Patented oct. 29, 1912.

BEIGE, 9F SKNDWICH, 1 532 51 01 SANDKVICI-I,

ILLIE'OIS, ASSItE-NOR TO SANBWICH ELEGTREi! (HEM- ILLINOIS, A G JRPORATION OF ILLINOIS.

SIGNALING SKILTEM.

specificationof .ers Pat ent.

lPatented obese, ism;

1th all? whom it may concern: .15 known that i, linear O. linen, c1t1- e ted States, residing at Sandthe county of Dekalb and State of have invented a certain new and e following is a full, clear, condescription, reference being to the r companying drawings, formr his specification. nvention relates to'signaling sysor its object the provision a-l sending devices and realreceisvihg apparatus, whereby it post ole to obtain a continuous indication r 0111 a signal that has been called, and one em v odi-ment of the invention contemplates the continuous operation of thisreturn' sigindicat-or until said return signaling appa tus is released by the signal-sending station. 1 v

lily invention further contemplates the receipt of a double indication from the station which called. My invention, however, is

i. not limiteicf course, to the embodiments above mentioned,

I will now describe this invention more by means of the accompanying. i J .7 istrating one embodiment hereof. l have here shown two line Wires a d 2, uniting'a central station, or train r s station, A, and a station E as a '1 al receiving station,- which station B is of a plurality of similarly construct-ed stations on the same line conductors 1 and 2, all adapted to be operated by mechanism similar to that shown at station E, with the exception that the step-up mechanism, or other select -e mechanism employed to call the particular station desired is set differently for the dificrent stations, as is common in the -t, and it is not thoughtnecessary these drawings to illustrate additional stations B, the station, B being a type of a plurality of signal-receiving stations connected to the same line Wires 1 and 2, and being under the supervision of the central station A.

Referring more particularly to the station A, l have here shown a despatchers telephone set comprising the head telephone 3, induction coil l, battery 5, transmitter 6, and condenser 7, wires 1 and 2. This telephone set is adapted to cooperate with the telephone set at the,

v nient in Signaling, Systems,

bridged across the line station E, and the rest of the stations which may beconnected along these line Wires, and the sub-station l3 telephone sets being similarly connected to those at the station A, I have designated them by. the same numerals, with the exception that I show,

in addition, as a' substation device, the

in a bridge across the line conductors 1 and 2, and is operated by impulses from the central station battery 10, through the agency of the key :11, which key sends positive impulses from said battery by the instrumentalities shown, consisting of the pole-changing switch 12 over the line wires 1 and'2,

to energize the relay 9 in e given manner.

The relay 9 is also cap bit )I energization in a dilferent manner, when the key 13 is operated, which closes the circuit through the battery 14:, and a relay 15, the enel gizw tion of said relay 15' serving to attract the pole-changing switches or reversing switch 12, to reverse the polarity of the current sent over the line wires 1 and 2 by the battery -10, thus to actuate the relay 9 in a dilierent manner. 'iissume that positive impulses actuate the relay 9, so that its floating armature 16 is attracted in a manner to close contact with the contact 17, thereby to opera-- tively energize the relay 18, thereby to step up the step-up mechanism 19 sutliciently to close contact between its arm 20 and the sprin 21, the arm 20, of course, being set differently for different stations, so that a varied number of impulses is necessary'to call the dillerent stations, as is Well understood in the art. The impulses are sent so rapidly until the desired station s reached that no substation relay has time to act merely when the arm 20 passes spring 21 in its continued forward movement. suming that sufiicient impulses have been transmitted to step up the mechanism 19, so that parts 20 and 21]cont-act, circuit is then closed through battery 22, 10W" wound relay 28, contact point 24, armature '25, arm 26, back to the contact arm 20-. The actuation of the relay 23 operates its armature 27 which-thereuponfpermits the sluggish movlit) If the key 11 at the station A, which'sends the positiveimpulses, is 'held in its closed position after the parts 20 and 21, contact, then therelay 23 will remain energized a sulticiently long time to finally permit the sluggish moving element 28 to come into engagement with the contact point 29. If this takes place, a circuit is established through a battery 31, localsignal' 32, and magnet 33, as will be more clearly described hereinafter. Now, however, should the lever 11 be actuated a sufiicient number of times to arrange for contact between the elements 20 and 21, but said lever 11 not held down in its closed position but released after making its last impulse, then the slug-. gish moving element 28 will not have time, before the armature 27 falls back, to make contact with the contact point 29-, by reason of the fact that the armature 25 does not remain a sufficient length of time in contact with the contact point 24, and circuit conditions are established as follows: From the element 19, through the arm 20, the element 21, the battery 22, the low wound relay 23, the high wound relay 34, the armature 25, the arm 26, back'to the element 19. On ac count of the inclusion of'the very v high resufiicient currentcan pass to the relay.2 3 to operate it, as the windings are arranged for that purpose, but the high-wound relay 34 has sutficient ampere turns to cause its armature 35 to draw up, thus closing. circuit through battery 36 and a second local signal 37, which includes therewith a magnet 38. It will be seen that the central station A, therefore, can operate with the same position of the element 19, either one of the two local signals, namely, 32 or 37, and conjointly therewith, either one of the two magnets 33 or 38. When either one of the magnets 33 or 38 operates, their respective armatures, 39. or 40, are drawn out of en'- gagement with the wheels 41, 42, and either one of the rotating, contact-making wheels '43 or 44, as desired, begins a continuous'rotation by virtue of the clock mechanism, as indicated, by the springs'45 and 46. It will be thus seen that if the'local signal 32 op-' crates, it releases the signaling mechanism 43, whereas, if the local signal 37 operates, it releases the signaling mechanism 44.

The continuous operation of the contact wheel 43 (assuming that one to have been operated) alternately makes and breaks a circuit through the spring 47, by virtue of the slight insulation strips, as shown on the wheel 43. Similarly, if wheel 44 operates, it

closes circuit through the spring 48. The

'wheel 43 is. connected to ground, and the. springs 47 and 48 are connected tothe center: of thetwo windings-49 and 50, which have their remaining terminals connected to the line wires 1 and 2, thus establishing a circuit condition whereby the springs 47 and 48 use the line wires 1 and 2 in parallel, with the ground as return circuit. This circuit from the springs 47 and 48 is continuous over the now parallel line wires 1 and 2, and ends in similar impedance coils 51 and 52, arranged at 'the central station, where a terminalis taken out of the c'enter of these two windings 51 and 52, ;wl 1icli passes through the sounder '53, and from there through the battery 54 to the ground. The sounder 53 also uses the line wires 1 and 2 in parallel, with the ground as return circuit, the same as 'the spring 47 and the spring 48. It will be seen, therefore, that when the signal 32 operates, it starts in operation the contactmaking wheel 43, which keeps continuously operating and sending back impulses over the relay 53, to indicate that saidsi-gnal 32 has been actuated; 01"1f signal 37 operates,

' it starts the mechanism 44, which sends back impulses designed to indicate that signal 37 is operating; I use the word signal as ap plied to the devices 32 and 37 in the broad sense of signal giving or operating means.

In order to stop the devices and 44 from rotation, and at the same time restore g the mechanism 19 to-normal, the key 13 is sistance relay 34 1n this same circuit, nOtdepressed, which sends animpulse of op- ,posite' polarity to the relay 9, thereby closvmg contact with its other contact point 55, 'whereby magnet 56 is energized, the ener- .gization of whose armature serves to -release the bars 26 and 57, thereby allowing the mechanism 19 to return to normal, Magneto drops 60, and 61 areprovided to fmaintain the continuous operation of the signals 32 an 37 after they have been started until manually stopped by the at tendant upon restoration. of thea'rmatures of said drops as is wellunderstood. Included serially with the relay. 56, are magnets 58 and'59, which respectively are assoclated with the armatures 39 and 40. Thus,

.when the step-up mechanism 19 .is released and restored to normal, whichever armature, 39 or 40, has been drawn out, is drawn back by the conjoint .energization of the relays 58 and 59, and the. signal wheels 43. and 44 are prevented from further rotation.

While I have herein shown and particularly described the preferred embodiment of my invention, I do not wish to limit myself to the precise construction and arrangement as herein set forth, but

' Having thus set forth its most salient features, what I claim as new and desire to secureby Letters Patent is:

tral station and sub-stations, a selective signal-receiving device at each sub-station, switching. devices at .the central station for selecting the same, a signal-sending device 1. A. signaling system consisting of a cenateach sub-station, a signal-rose v vice at the central station responsive to indications from the. sub-station signal-sending devices, automatic means associated with the sub-station signal-receiving device to start, when actuated, the sub-station sig nal-sending device and devices controlled at the central station for stopping the oper- 51161011 of the substation signal-sending de ,vice withoutdisturbing est-ablishedline coiinections between said stations. I v

2. A. signaling system consisting of a'central station and substations, a selective signalreceiving device at each sub-station, switching devices at the central. station for selecting the same, a signal sending deviceat each sub-station, a .signal receiving device at the'central station responsive to indications from the si 1bstation signal send ing devices, automatic means associated with the sub-station signal-receiving device to start, when actuated, the substation signal-sending device, and devices controlled at the central station for stopping, irrespective of the operation of the sub-station.

signal, the operation otsaid sub-station signal-sending device.

A signaling system consisting of a central station and sub-stations, a selective signal-controlling device at each Sub-station, a

device starts in operation its associated s1g-1 nal-sei'iding device.

A signaling system consisting of a cen: tral station and sub-stations, a selective signal-controlling device at each sub-station, a plurality of signal-operating devices under the control thereof,switching devices at the central station for selecting said signalcontrolling devices and also selecting the signal operating devices associated there with, a signal-sending device at each Sill)- station for each signal-operating device, a signal-receiving device. at the central station -for receiving the indications of said substation signal-sending devices, automatic means whereby the ope ation of a signaloperating device starts in operation its asso ciated signal-sending device, and devices controlled at theciait-ral station for stop-i ping, irrespective of the operation. of the sub-station si nal-operating devices, the 'operation of said sub-station signal -sending devices.

5; A signaling system consisting of a central station and sub-stations,a selecti nal receiving device at each sub switching" devices at the-central station for selecting same, a signal-sencling device, at. e ch sch-station, local means for continu.-' ously operating said device when started, signal receiving device at the central station responsive to indications from the sub-stag tion signal sending dev ces, automatic means associated with the sub-station signal-receiving'device to start, W191i actuated, the. substation signal --sending device and devices controlled at the central station for stopping ing device.

the operation of the substation signal-send- 6. A signaling system consisting of ace-m tral station and sub-stations, a selectivensi nal receiving device at each sub-station,

switching devices at the central station for selecting same, a SignaLsendingdevice at each substation, local means for continuously operating said device when started, a signal-receiving device at the central station responsive to indications from the suo-- station 1 signal Sending devices, automatic means associated. with the substation sig nal-receiving device to start, when actuated, the substation signal-sending device, and switching devices controlled at' the central station for stopping, irrespective of the operation of the sub-statiori'signal, the operation of said sub station signal sending device.

7. A signaling system consisting of a central station and sub-stations, a selective sigiial-conti'olling device at each sub-station, a

started. a signal-receiving device at the central station for receiving the indications'of said sub-station signal-sending devices, and automatic nieans'wliereby the operation of a signal-operating device starts in operation its associated signal-sending device.

7 A signaling system consisting of a central station and sub-stations,.a selective sig- 7 nal-controllii'ig device at each substation, a plurality of signal-operating devices under the control thereof, switching devices at the central station for selecting said signal-controlling devices and also selecting the signaloperating devices associated therewith a signal-sending device at each sub-Sta, tion for each signal-operating device, local means for continuously operating said device whcn started, a signal-receiving device at the central station for receiving the indications of said sub-station signal-sendi11g devices, automatic means whereby the opercentral station for selecting the sub-station signals, a sub-station signal-sending device, automatic means tor starting same when the local signal thereat operates, and devices controlled at the central station for stopping the operation of said sub-station signal-sending device independently of the operation ofthe sub-station signal.

10. A signaling system comprising a central station and sub-stations, a signal at each sub-station, means controlled at the central station for selecting the sub-station signals, a sub-station signal-sending device, automatic means for starting same when the local signal thereat operates, a signal receiving device controlled at the central station responsive thereto, and devices at the central station for stopping the operation of said sub-station signal-sending device independently of the operation of said sub-station signal.

11,. A signaling system comprising a cen tral station and substations, a signal at each sub-station, switching means at the central station for selecting thesubstation signals, a sub-station signal-sending device, automatic means for starting same when the local signal thereat operates, a signalreceiving device atthe central. station responsive thereto, means associated with each sub-station s1gnal-sending device, whereby its signals to the central station are distinctive, and devices controlled at the central station for stopping the operation of said sub-station signal-sending device independently of the operation of the substation signal. l

12. A signaling system vcomprising a central station and substations, a signal at each sub'station, switching means at the central station for selecting the sub-station signals, a sub station signal-sending device, local means for continuously operating said device when started, automatic means for starting same when the local signal thereat operates,.and devices controlled at the central station for stopping the operation ofsaid sub-station signal-sending device independently of the operation of the substation. signal.

13. A signaling system comprising a central station and sub'stations, a selective sig-' naling device including a signaling means at each substation, means at the central station to select the substation signaling devices, return signal means associated with each substation signaling device to indicate to the central station the operation of its associated signaling means,'and means controlled at the central station to stop the operation of the return signal means independently of the operation of the substation signaling means.

14:. A signaling system comprising a central station and substations, a selective signaling device including asignaling means at each substation, means at the central station to select the substation signaling devices, return signal means associated with each substation signaling device to indicate to the central station the operation of its associated signaling means, said return signal means being adapted to operate continu ously after starting until stopped by means controlled at the central station, and means controlled at the central station to stop the operation of the return signal means independently of the operation of the substation signaling means.

In witness whereof, I hereunto subscribe my name this 19th day of January, A. 1).,

HARRY O. R'UGH. Witnesses:

MAX W. ZABEL, O. M. NERMIEL.

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