US1138739A - Composite electric system. - Google Patents

Description

MQ d? R. M. EATON. COMPOSITE ELECTRIC SYSTEM. APPUCATION AFILED APR. l5, i909 l Patente@ May 11, 1915.

R. M. EATON.

` COMPOSITE VELECTRIC SYSTEM.v APPLICATION FILED AFR.15,'1909,

Patented May 11, 1915.

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RICHARD MAX EATON, OF NIAGARA FALLS, NEW YORK, ASSIGNOR, BY MESNE ASSIGN MENTS, TO THE GARFOBD MANUFACTURING COMPANY, OF ELYRIA, OHIOs A.

CORPORATION OF OHIO.

COMPOSITE ELECTRIC SYSTEM.

T0 all 117mm, it muy concern:

Be it known that l., Riciiaiu) MAX EATON, a citizenotl the United States, residing at Niagara Falls, in the county of Niagara and State of New York, have invented certain new and useful .Improvements in Composite Electric Systems; and l do hereby declare the following to be a full, clear, and exact description ot' the invention, such as will enable those skilled in the art to which it appertains to make and use the same.

The invention relates to improvements in composite systems where a telephone and police system are combined.

In general ,the purposes are to provide a system in which the main station may be signaled from the various subf'stations; to provide a telephone circuit not interl'ering with this; and to provide means for signalhaving lenses in its walls.

'the central station.

ing an itinerant attendant, such as a patrolman upon his beat. To accomplish the latter, I use a signal either placed within `or controlled by apparatus placed within a protecting casing and located adjacent the route of the attendant. The signal l employ is bright and attractive, such for example as an incandescent lamp within acasing, These signals may be seen from a great distance and when operated attract the attendant to the box in which telephones are placed. The signals are placed under control of the attendant at They are controlled over the conductorsi'of the telephone circuit without incapacitating the conductors and apparatus for the other operations for which they are used. The telephone and the apparatus for controlling the signals located at the sub-stations areplaced in pr`otecting casings. I prefer to place the lamps and lenses in said boxes also.

Other objects of" my invention are t0 provide these circuits in a non-interfering, operative way, with a minimumnumber of conductors.

My invention will be best understood vby reference to the following description when taken in connection with the accompanying illustrations, showing one speciic embodiment thereof, while its scope will be more particularly pointed out in the appended l claims.

Figure 1 is a View of the circuits used.

Seria1No.490,100.

the door open, showing the apparatus within. Fig. 3 is a. side elevation with the door closed. I

Referring to Fig. 1, the metallic line conductors are shown at 2, and 3, which, together with the ground, constitute the main lines ofthe system. The central station is shown at A with substations C and DAny number of substations maybe included. The main 8 is normally connected to ground at the central station through the electromagnet llland battery B. At each'stat-ion the main 3 may be grounded, through legs 12 by closing the normally open. switches 13-43. Betweeirmains 2 and 3 telephone sets 15, 15 are normally in open bridges 14, 14. Other bridges 1G containing the high resistance and impedence relay 17, are connected in parallel with the telephone sets at each substation. These relays control contacts 1.8-19 which are interposed in the circuit of the lamps 20 which may be bridged across the( electric light mains 21 and 22 or placed in a local circuit. At the central station, the mains 2..and 3 terminate in the switch springs 23 and24 which normally engage with contacts 25 and 26, but which, when sprung outward, are adapted to engage the terminals 27 and 28 ofthe central station* talking set 29 whichi-is connected through the leads 30 and 31 to terminals 27 and 28. A battery B2 and an induction coil 3u in series are bridged across these leads and supply current for talking purposes. The contacts 25 and 26 are connected by conductors 35 and 36 with other switch springs 233 and 34. The spring 34 normally engages with a terminal 37 of the grounded battery B. The latter springs when separated, engage terminals 38 and 39 of the battery iB. A source of current 42 is placed in the light circuit.

Figs. 2 and 3' show a case 41 in which are housed the' telephone set 15,v push button 13, relay 17, the signal lamp 20 and the signal transmitter 4. The front of the casing is hinged and carries a light transmitting lens 40. Other similar lenses are placed in the sides of the case. I contemplate the'use of siinilar lenses in other parts of the case, as my purpose in using them is to distribute the light so that it may be seen from all direc Wisemodied so as to readily attract attention.

The operation of my system is as Jfollows: When the sub desires to call the central for talking, the button 13 is pressed until it con tacts With 43, closing circuit GLAS-18- 12 3- -2i 26-aes711-BG. Y This energizes the magnet 11 and throws the drop. The central operator then throws a lever or button (not shown) in such a Way that the springs 23 and 24 disengage 25 and 26 and contact With27 and 28. This interrupts the circuit just traced, cutting oit' the line signal and bridging the operators set 15 acrossthe mains 2 and 3. W'hen the substation removes the receiver, a talking circuit is completed as "ows: 29-31-27- 2-1%15-3-21-28-3029. Current is supplied by battery B2 through the induction coil 32 whose function is to choke out the variations in the battery current. Should the central station, or the chief at the police station, as the case may be, have reasons for calling the patrolman, for instance, when notice of the commission of some crime has been. reported and 1t is desired to notify all the policemen in order that they may eXer cise vigilance in endeavoring to intercept the criminal, he may do so by throwing the lever in the opposite direction. The following circuit Will then be closed: B-39-3el-36- 26-24--3-16-172-23-25-35-33- 38--B- This energizes the magnet 17 to close switches 1S-19 and completes the circuit of the lamp 20. Magnets 17 are made of such ti'rh resistance that the energy of the battery B2 is insuflicient to operate them While their impedence is high enough to prevent shortvcircuiting the telephone current. 40 When the lamps 20 are illuminated, light transmitted through the lenses to the vari- 'lous quarters of the horizon will attract the attention of the patrolmen or others authorized to answer, who will proceed to the telephone for instructions.

While I have described my system as used by a police department, obviously, I may employ it for any analogous purpose where itinerent persons or out-door stations are to be called and conversed with, such for eXam ple as railway employees along a railway,

Watchmen and the like. x

Other forms of signal may be used, and

it is obvious to those skilled in the .art that numerous and extensive departures fromA of substations, telephone talking sets at substations operating over said system, a single pair of conductors connecting all of the talking sets of said stations, lamp signals at said substations and self-restoring means at the f substations connected to the conductors independently of the talking sets connections controlling said lamp, said means being adapted to be simultaneously controlled by the attendant at the main station over said pair of conductors.

2. In av composite system, the combination of a main station, a plurality of substations, a pair of conductors connecting said stations, telephone sets at the substa tions connected to the conductors, a normally non-luminous signal at each substation controlled over said conductors, selfre'storing means connected to the conductors at the substations independently of the telephone sets and means at the main station for simultaneously operating the self-restoring means at the substations.

3. In a composite electric system, a central station, substations, metallic conductors connecting the central and substations, telephone sets at the substations and means to bridge said telephone sets across said metallic conductors, a self-restoring signal controlling means at each substation connected to said metallic conductors independently of the telephone sets, said signal restoring means being impervious to telephone currents, a signal at each station controlled by the signal controlling means thereat, and when actuated visible from a plurality of quarters, and mechanism for simultaneously operating said signal controlling means from the central station.

et. In a composite system, the combination of a main station, a plurality of substations, a pair of metallic conductors connecting said stations, a telephone set at each substation, a bridge at cach substation between the metallic conductors in which the substation thereat is connected, a lamp signal at each substation, a self-restoring relay at each substation controlling the lamp thereat and connected to the conductors independently of the telephone sets and. mechanism at the main station for controlling the simultaneous actuation and retirement of said lamp controlling means at the substations.

5. In a composite system, the combination of a main station and a plurality of substations, a pair of conductors connecting said stations, a telephone set at each substation connected to said conductors, a lamp signal at each substation, means to supply current to said lamp signals, self-restoring means at the substations controlling said lamp signals, said lamp signal controlling means being connected to said conductors independently'of the talking sets, mechanism at the main station for causing the simultaneous stations, a telephone set and a bridge of said conductors in which said telephone set is connected at each substation, a lamp signal vat each substation, means including circuit conductors for su plying. current to the lamp signals, a sel -restoring relay at each substation connected to said line conductors independently of the telephone sets, said relays controlling the lamp signals and being self-restoring, mechanism at the central station for supplying current to simultaneously actuate the relays at the substations, and means at the main station for interrupting the supply of current to said relays, whereby the are permitted to self-restore themselves and7 cause the retirement of the lamp signals.

7. In a composite system, the combination ofl a main station and a plurality of substations, a pair of line conductors connecting said stations, a telephone set at each substal tion, a bridge of said line conductors. at eachl substation in which the telephone set thereat is connected, a lamp signal ateach substation, means including current conductors for supplying current to said lamp signals, "a

self-restorin switch for each lamp in-'its current con uctors, a magnet at each substation controlling the switch of the lam Vatthe substations, a second bridge of theV e i conductors ,at each substation inwhich the.

magnet thereat is connected, means at the main station for supplying current to said magnets and thereby causingl the simultane ous actuation of said magnets at the various substations on the line conductors and means for interrupting the ow of current to said magnets, whereby they are simultaneously self-restored and releasing the lamp controlling switches, thereby simultaneously restoring the lamps. p

In testimony whereofl I aix my signature in presence of two witnesses. v I

i RICHARD MAX EATON.

Witnesses:

GEO. J. Rrcxnn'r, v S'rAsm BAKER.

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