US339449A

US339449A - Multiple telegraphic repeater

Info

Publication number: US339449A
Authority: US
Publication date: 1886-04-06
Anticipated expiration: 1903-04-06

Description

(No Model.) 2 Sheets-Sheet 1. W. MAVER, Jr. MULTIPLE TBLEGRAPHIU REPEATER.

Patented A r. 6, 1886.

WU-L Mwowo Alum (No Model.) 2 Sheets-Sheet 2.

W. MAVEB, Jr. MULTIPLE TBLEGRAPHIG BEPEATER.

Patented Apr. 6, 1886;

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UNITED STATES PATENT @rrica 'WILLIAM JIAVER, JR, OF JERSEY GMT, NEW JERSEY.

MULTlPLE TELEGRAPHIC REPEATER.

PliCIPICATiON forming part of Letters Patent No. 339,449, dated April 6, 1886.

Serial No. 163,063. (No model.)

To all whom it may concern.-

Be it known that I, XVILLIAM MAVER, Jr., a citizen of the United States, residing in J crsey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Multiple Automatic lelegraph-Repeaters, of which the following is a specification.

The invention relates to the class of apparatus employed for repeating into one electric circuit the messages or signals transmitted over another electric circuit.

The object of the invention is to provide means automatically controlled for repeating from any one of a given series of conductors into any or all of a second series, and vice versa. This organization of apparatus involves the possibility of at any time signaling back from any one of the receiving series of lines or conductors to the line from which the signals are being repeated.

The invention consists, generally, in so organizing the apparatus at the repeating station that a current coming over any one of either series of lines will control the connec tions of a correspondinglocal circuit in which there is incl udcd an electro magnet serving in its turn to control the connections of a corresponding second local circuit. In each of these second local circuits thereis included arepeating-magnet. The one series of repeat ing-instruments serves to control the connections of the main-line batteries applied to the respective lines of the series controlling the other series of repeating-instruments, and vice versa.

The electro-magnets mentioned as control ling the local circuit connections for the repeating-magnets are employed for the especial purpose of reversing the signals as received from the transmitting-lines, and may be termed "reversingmagnets. These niay,however, be dispensed with by placing the series of repeating-magnets in the first-named local circuit. By making and breaking the connections of any one of either series of lines at a transmitting-station signals will be repeated into each of the other series of main lines. If, however, a receiving operator of the one series desires to break in upon and to signal back to the transmitting operator, an interruption of the circuit at his station will cause the reversingmagnet applied to the corresponding series to interrupt the circuit of the main line from which the message is being repeated, and a signal will then be given to the transmitting operator. As already stated, the reversingmagnet-s may be dispensed with, but usually they are preferred for the purpose of rendering it possible to readily adapt the existing apparatus to this system.

For the purpose of preventing the relayinstruments of either series of lines from operating the series of repeatinginstruments of the other series of lines in response to the movements of their levers, occasioned by the repeated signals, a ciremit-interrupting device is applied to one of the repeatirig-instruments of each series, whereby the connections of the local circuit employed for actuating the repeaters of the transmitting-lines are kept from being completed while the receiving-repeaters are in operation.

I anraware of the existence of other multiple repeaters, such for instance as described in the patents of Smithers, Nos. 268,561 and 279,670; Ballou, No. 250,774, and Gally, No. 158,927.

In the accompanying drawings, Figure 1 is a diagram of the general organization of apparatus at the repeating-station. Fig. 2 represents the modification in which the reversing-magnets are dispensed with at the repeating-station.

Referring to Fig. 1, two series of main lines are shown, each series being three in number in this instance, the conductors L, U, and L constituting the first series, and the conductors U, L and L the second series. These series may, however, be indefinitely extended, as will hereinafter appear. It is designed that the movements of the transmittingkeys which are applied to these two series of lines, respectively, shall control the movements of one or the other of two reversingmagnets, R and B, respectively, accordingly as the key belongs to one or the other of the two series of lines. The coils of the electro magnets R and R are respectively included in the circuits of local batteries 0 and 0". Included in each of the main line conductors there is a relay-magnet, as shown at r, r, and r, and 9', T and r. The main line L leads from the coils of the electro-niagnet r to one pole of a main-line battery, 0, in a manner which will be hereinafter described. The remaining pole of this battery is connected through a conductor, Z, with a conductor, 1, leading to the earth at g. In like manner the conductors L and L are connected through the coils of the electro-magnetsr and r wit-h the poles of the main-line batteries 0 and 0 the remaining poles of which are connected through conductors 2 and 3, respectively,w'ith the conductor Z, and thus with the earth. It is evident that asingle battery might be placed in the conductor Z, in place of the separate batteries in the conductors 1, 2, and 3.

One pole of the local battery 0, which has been referred to, is connected with the respective armature-levers a, a and a of the relaymagnetso", 1", and The front contact-stops, b,b",and b ofthe armature-levers are insulated, while the back contact-stops, c,c,and 0,are all connected through a conductor, 8, in a manner 'which will be hereinafter described, with a conductor, 9, leading to one terminal ofthe coils of the reversing-magnet R. The remainingterminal of these coilsis connected through conductor 11, with the remaining pole of the battery 0. \Vhen therefore the main-line connections of all the first series of lines are complete, the armature-levers a are in their for ward positions, and the circuit of the battery 0 is interrupted. The armature-lever d of the reversing magnet R, therefore, rests against its back contact-stop. By interrupting the connections of any one of the main lines of the first series the corresponding armature-lever will fall back, and thus complete the connections of the battery 0. The armature-lever (1 will thereby be drawn forward.

Normally, the circuit of the battery 0 being interrupted, the lever d rests against its rear contact-stop,e, and thereby completes the circuit-ronnections of a battery, 1), one pole of which is connected by the conductor 12 with the contact-stop e,while the other pole is connected through the coils of a series of repeating-magnets, K, K, and K and with the armature-lever d by a conductor, 13. As long, therefore, as the circuits of themain line 'L', L", and L are complete the circuit of the battery 10 will also be complete, and the armature-levers 7c, is", and k will be drawn into their forward position, as shown in the drawings. When, however, the connections of any one of the main lines are interrupted, then the armature-Jever (1 being drawn away from its point e, the electro-magnets K, K, and K will be demagnetized, and the corresponding armature-lever will fall away. The movements of the armature-levers k, lc",and k thus occasioned serve to make and break the circuit-connections of the main-line batteries 0, O and O", which are applied to the second series of lines, L, L and L", respectively, and. which correspond to the batteries 0, O, and 0 To this end the battery 0 has one pole connected with a contact-point, f, which is preferably applied to an insulated contact-spring, h, carried upon the armature-lever It. This spring is in turn connected by a conductor, 14, through the coils of the electro-magnet o", and thus with the main line L. The remaining pole of the battery 0 is connected by a conductor, 4, with the conductor 1 leading to the earth at It will be observed, therefore, that the movements of the armature-lever 7c inresponse to the movements of the armature-lever d will serve to make and break the connections of the battery 0* in a manner corresponding precisely to the completions and interruptions of the connections of the main line L, L, or L The battery 0 has one pole connected with I the contact-point f and the battery 0 has a corresponding pole connected with the stop The stops f 2 and f are respectively applied to the levers k and 7c", and these levers are connected by conductors 15 and 16, respectively, through the coils of the relay-magnets 7' and r with the main lines L and L It will be readily understood from the foregoing description that any signals which are transmitted upon anyone of the main lines L, L and L, constituting the first series, will be thus retransmitted by currents from the batteries 0, O and 0 into all of the second seriesof lines L, L and L", respectively.

It will be observed that the interruptions of the circuits of the batteries 0, O and O which are thus occasioned will cause the armaturelevers a", a and a of the relay-magnets r i and r to fall backward against their rear contacts, 7), b and biflrespectively. These contacts are connected through conductors 17 and 18 with the coils of the second reversing magnet, R and they serve to perform the same functions as the armaturelevers a, a and (6. They would therefore serve to operate the reversing-magnet B when a message is being transmitted from the first series of main lines, unless some means were provided to obviate this difficulty. One pole of the battery 0 is connected with the armaturelevers a a and a by conductors 19, 20, and 21, while the remaining pole is connected with the conductor 18 by a conductor, 22, leading through the coils of the reversingmagnet B. It is necessary, therefore, that the circuit of the battery 0 should be interrupted at some other point before it is completed by the falling of any armature a, (65, and a away from its front contact-stop, c 0 or 0, against its back stop, I), b or b. For this reason the conductor 17 preferably leads to a contactstop, j, applied to a contact spring or extension, 12, carried upon the armature-lever it. This spring is in connection through the armature lever with the conductor 18, leading to the reversing electro-magnet R hen the armature lever k is in its forward position, as shown in the drawings, the conductor 17 is thus connected through the contact-stop and spring with the conductor 18; but by the movement of the armature d of the reversing-magnet R- the circuit of the battery 1) is interrupted,and likewise the circuits of the batteries O and 0 causing the armature-levers a, a and a to fall against their back-contact stops; but the connection between the conductors 17 and 18 is also interrupted, se'tliat the circuit of the battery 0* remains incomplete.

The reversing'magnet R serves,in response to the movements of the keys applied to the lines L*,L ',and L of the second series,to control the movements of the armature-levers 7c, R and It of the electro-magnets K, K and K. These last magnets are employed for repeating from the first series to the second series of main lines. The electromaguet K corre sponds precisely to the electro-magnet K, and likewise the magnets K and K correspond to the magnets K and K and a detailed description is therefore unnecessary.

The movements of the lever d of the reversing-magnet R serve to control the circuit-connections of a local battery, p, corresponding to the battery 12. The armature-levers 702k, and It respond to the movements of the armature-lever d, and repeat from the batteries 0, O, and 0 into the lines L, L", and L It frequently occurs that during the signaling from one line through a repeating-instrument into a second line itis necessary for the receiving operator to communicate back to the transmit-ting operatoras, for instance, when it is desired that some portion of the message be retransmitted. To accomplish this,it will be necessary only for the receiving operator to employ his key in the usual manner. (Jonsidering that the operator upon the main line L is transmitting, and that the operator upon the line L wishes to communicate with the transmitting operator, then, by the interrup tion of the main line L at the receiving-station the armature-lever a of the magnet 4' will be allowed to fall back against its rear contact-stop D The circuitof the battery 0 will then be completed through the coils of the reversing magnet R", the conductor 18, armature-lever it, stop j, conductor 17, contact-stop b, lever a, and conductor 21. Should the armature 1: chance to be away from its electro-magnet at the moment the circuit of the line L is interrupted, then the circuit of the battery 0 will not be completeduntil the armature-lever of k is returned to its forward position, which it is evident it will do immediately upon the-transmission of a signal from the line L. The circuit of the battery 0* be ing thus completed,lhe armature-lever (1" will be, drawn forward, interrupting the circuit of the battery phthereby causing all the armatu relevers KKK, and K to fall back and interrupt the circuits of the batteries O,O'",and The movements of the key of the transmitting operator upon the line L will therefore produce no effect upon the instrumentat his station, and he will thus be notified that some one of the receiving operators desires to communicate back. The operator upon the line L is then enabled to transmit as follows: The line from the main line L is complete through the conductor 16 to the armature-lever It, thus to the battery 0 and from the battery to the earth through the conductor 1 The movements of the lever a in response to the movements of the key included in the line L cause the circuit of the battery 0 to be made and interrupted, and the signals to be retransmitted through the line L in a manner readily understood.

It should be here noted that one essential feature of a repeating apparatus is that it should be so organized that by no possible act can the various parts come into such position that it is impossible to complete the circuitconnections from any one of the main lines. It is evident that this end is attained in the present instance, for, as has already been shown, the circuit of the battery 1) must be closed before the circuit of the battery 12 can be interrupted, and vice versa; but if by any chance the circuits of both batteries 1) and p should become interrupted at the same time immediately the corresponding reversing-id strument, R or R, will serve to again complete the connections, for the reason that the circuit of the battery 0 or 0 will be interrupted at the point j or 3', thereby causing the armature-lever d or d to fall against its back contact-stop, and to complete the connections of the corresponding battery, p or 19 In Fig. 2 a modification is shown in which the reversing-magnets R and R are dispensed with. In this instance the relay-magnets K, K, and K are included in the circuit of the battery 1), while the corresponding magnets, K K and K, are included in the circuit of the battery p". The circuits of these batteries being open when the main-line connections are complete, the levers It will be away from their electro-magnets, and the parts are so organizcd that the respective circuits of the batteries 0 will be completed through the rear contact-stops of these levers.

A circuit-connection may be completed from the conductor leadingto the back contact-stops to the front contact-point of one or more of the relay-magnets and a sounder included therein, as shown in dotted lines, for the purpose of affording opportunity forthe messages to he read at the repeating-station. The same local battery will, it is evident, serve to operate this sounder.

It is evident that a single repeater may be operated upon this principle without departing from the spirit of the invention, a transmitter and a relay being employed for each main-line circuit, each transmitter being organized to break the local circuit of the other before the main-line circuit-connections are interrupted, so that each transmitter will be kept idle while the other is being operated.

1 claim as my invention- 1. The combination, substantially as hereinbet'ore set forth, with two series of mainline conductors, of a source of electricity applied thereto, and means, substantially such as described, for automatically repeating from any line of either series into all of the lines of the other series.

2. The combination, substantially as herelnbefore set forth, with two series of main lines, of a repeating-magnet applied to each of said lines, means for automatically operating the repeating-magnets of either series by currents from any one of the lines of the other series, and means, substantially such as described, whereby the operation of one series of repeating-magnets temporarily prevents the operation of the other series.

3. The combination, substantially as hereinbefore set forth, of two series of lines, two series of repeating-magnets, means for repeat ing from any line of either series into all the lines of the other series, means, substantially such as described, whereby the operatingrepeaters prevent the other repeaters from operating, and means, substantially such as described, whereby a receiving-line prevents the operation of its repeater at the completion of a signal.

4. The combination, substantially as hereinbefore set forth, of a main line, a relaymagnet included in the circuit thereof, a battery the connections of which are made and interrupted by the movements of the key applied to said main line, a reversing-magnet, a battery applied thereto,the circuit-connections of which are made and interrupted by the operation of said relay, and a series of repeating-instruments, all of which are controlled by the operation of said reversing-instrument.

5. The combination, substantially as hereinbefore set forth, of two reversing -instruments, two series of main lines respectively corresponding to said instrument-s, means, substantially such as described, operated by currents traversing said main lines for operating said instruments, and means, substantially such as described, for normally preventing one of said instruments from operating while the other instrument is in use.

6. The combination, substantially as hereinbefore set forth, of two series of lines, two reversing instruments respectively corresponding thereto, means for operating either of said instruments by currents traversing one of the lines of the corresponding series and for preventing one of said instruments from operating while the other is in use, and means for interrupting the operation of the first instrument and bringing the second into operation at the termination of a signal.

7. The combination, substantially as here inbefore set forth, with a telegraphic main line, of an electro magnet included therein, a series of lines, a battery for applying currents to said series of lines, a local battery and its circuit, the connections of which are controlled by said electro magnet, an electro magnet included insaid circuit, anda series of circuit controlling magnets applied to series of lines, respectively, and controlled by the operation of the last-named electro-magnet.

8. The combination, substantially as hereiubefore set forth, with a series of main lines, of a reversing-instrument,means,substantially such as described, for actuating the same, a local battery, its circuit, the connections of which are controlled by said reversing-magnet, armature-levers respectively applied to electro-magnets and serving to control the connections of the series of main lines, respectively, a second reversing-instrument, a local circuit for operating the same, and means, substantially such as described, applied to one of said series of electro-magnets, whereby the circuitconnections of said second local battery may be interrupted when the circuit of said firstnamed local battery is interrupted.

9. The combination, substantially as hereinbefore set forth, of the main-line battery 0, and the electro-magnet 1", its armature and rear contact-point, the local battery 0, the reversingmagnet R, included in the circuit of said local battery, a main line, the local battery p, the circuit-connections of which are controlled by the operation of the repeatingmagnet R, the series of electro-magnets included in the circuit of said battery 19, and the series of main lines having their circuitconnections controlled by the armature-levers of said series of electromagnets, respectively.

10. The combination, substantially as here inbefore set forth, of a main line, a battery, an electro-magnet included in the main-line circuit, its armature and rear contact-point, the local battery 0, the circuit-connections of which are controlled by the operation of said electro-magnet, the series of electro-maguets controlled by the opening and closing of the circuit of said local battery, a series of main lines having their circuit-connections controlled by the armature-levers of said series of electromagnets, respectively, a second local battery having its circuit-connections substantially the same as those of the first-named local battery, and means, substantially such as described, for preventing the second local circuit from being completed by the operationof the first-named electro-magnet.

11. The combination, substantially as hereinbefore set forth, of the instruments R and R the two series of instruments K, K, and K and K K and K means-substantially such as described, for operating the instru ments R and R", and thereby controlling the movements of the two series of instruments, respectively, and two series of main lines, the connections of which are controlled by the respective armatures of said series of electromagnets.

12. The combination, substantially as hereinbefore set forth,wit h twoindependentseries of telegraphic main lines, of means for repeating from any line of one series into the other series of lines, and means, substantially such as described, whereby signals may be automatically transmitted from any of the last I named series of lines back into the first-named line.

13. The combination, substantially as here-- IIO inbefore set forth, oftwo series oflines, a relaymagnet included in the circuit of each of said lines, two series of repeating-instruments respectively applied to the lines of said series, two local batteries respectively controlled by any relay or" the corresponding series, and two circuit-controlling devices respectively controlled by the local batteries, whereby during the operation of a relay belonging to one series of lines the repeating-instruments of that line are prevented from operating.

14. The combination, substantially as hereinbefore set f0rth,with two independent series of main lines, of a transmitter, a reversingmagnet, and a relay for each series, a local cir- W'ILLIAM MAVER, JR.

\Vit-nesses:

CARRIE E. DAVIDSON, CHARLES A. TERRY.