US846416A - Telegraphic receiving device - Google Patents

Description

No. 846,416. IPATENTED MAB. 5, 1907'.

. I. KITSBB.

TELEGRAPHIG RECEIVING DEVICE.

:APPLIUATION FILED SEPT. 6.1906.

WITNESSES:- INVENTOR I so UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

ia-tented March 5, 1907.

Application filed September 6, 1906. Serial No. 383,4 97.

To all whom it maly eoncem:

Be it known that I, Ismon Krrsnn, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certam new and useful Improvements in Telegraphic Receiving Devices, of which the following 18 a specification.

My invention relates to an improvement m telegra ln'c receiving devices or relays. Its object is to translate the incoming impulses on lines with great capacity, such as submarine cables, into sound or relay the same to a second line.

For the purpose that persons versed in the art may practice this my invention 1 have illustrated the same as being a phed to the well-known siphon-recorder, a evice usual] employed in submarine-cable work, and have replaced the siphon proper by two light conductors, such as conductin -wires of small dimension. here the conducting liquid, which will hereinafter be described, is a fluid not affecting aluminium, the wire may consist of this metal; but where diluted sulfuric acid or the like is employed it is best to use a platinum wire. The same does not need to be more than one-hundredth of an inch in diameter.

In the drawing, Figure 1 is a perspective view of this recorder with my invention attached thereto. 2 is a section of one of the conducting liquids employed by me.

1 is the electromagnetic part of the siphonrecorder provided, as usual, with the suprting-prece 2; but instead of having at tached to this piece the siphon proper there are attached to it the two conductors 3 and 4.

7 is a retaining vessel, of non-conducting material and divided into two parts, one part containing the fluid 8 and one part containing the fluid 9. This fluid has to be conducting, and it is referred that diluted sulfuric acid should e used.

The conductor 3 terminates at the lower endin the bent ortion 5, and the conductor 4 terminates in t 1e lower end in. the bent or tion 6.

10 is a retaining vessel, preferably of con ducting material. This vessel contains the conducting fluid l2 and the non-conducting fluid 11. The conducting fluid may also in this case consist of diluted sulfuric acid, and

the non-conducting fluid may consist of one of the lighter oils-such, for instance, as petroleum.

The containing vessel 7 is provided with the contacts -19 and 20, the contact 19 connected through wire 18 with the source of current 17 and the contact 20 connected through wire 21 with the source of current 16. Both sources are connected together with the positive pole through wire 26, and this wire is connected through wire 15 with contact 14 of the containing vessel 10. Normally the conductors 3 and 4 connect with one end with the conducting liquids 8 and 9, respectively. The other end of both wires just touch the conducting liquid 12. It is therefore seen that a short circuit of the two batteries 16 and 17 is established.

is an electromagnet, such as a sounder; but instead of provlding the sounder with the usual spring I have provided the same with two sets of electromagnets-one near one terminal of the lever 29 and the second near the other terminal of said lever. The sets of electromagnets are designated by the numerals 23 and 27, respectively, and they are joined by the wire 24. The circuit of the electromagnet 27 is made throu h wire 28 and return 25. The circuit of the electromagnet 23 is made through wire 22 and return 25.

As long as a conducting-path between the u per and lower reservoir is established the el ctromagnets 23 and 27 will not be operated upon, for the reason that the circuits are arranged so that the part including the con duo-tors 3 and 4 is of far lower resistance than the path embracing electromagnet 23 or 27; but as soon as the electric continuity between the u war and lower reservoirs is broken then the electromagnet connected to the respec tive source of current will be actuated.

It is supposed that the end of the lever near the screw 31 is normally in an upward position, and therefore the opposite end in a downward position. it is also supposed that the wire closing the shunt. of battery 17 will be actuated so as to come out of the conductinp, liquid 1.2 by a positive impulse and the wire col'mccting the shunt of hulll'ry 17 through an impulse of opposite polarity, and it is supposed that the positive impulse is the signaling impulse and the llll mlso of opposite polarity the spacing impu so.

The operation of this device is us follows:

Normally, said above, both ilac wires-i end 4 (lip with their lower end in lllkHIiOIll'lllCl lug liquid. 12. Both. batteries therefore are short-circuited. The transmitting operator impresses new upon the line a positive iinpulse, This impulse will move the coil of the siphon-recordr-ir in a manner so thet the lo Wer part 6 of the conductor 4 will be moved out of the conducting liquid and in the region of the nonmorulucting liquid or oil lll'irougl'i this mm-12m en t the shunt around the buttery 17 will be broken, and the circuit of thie hat te-iy ineluding the electromagnet 27, will he col;- op .tive. The end of the lever 29 near the screw 31 will he pulled dowmvsrd mud will produce what is known in telegrsphy as the downstrolte. When after u shorter or longer period the transmittingoperator impresses upon the line negative impulse, w the coil of the recorderwill he sieved in e do reetion so to replace again the lower ens {i into the conducting liquid, but move out of the conducting liquid and into the region of the non-oonducting fluid the lower end the Wire 3.

the circuit of this battery, including the slew troinsgnet 23, will be made operative and the lever end near the electroins-gnet 23 will be pulled downward, and therefore the end in proximity to screw 31 pulled upward, end this will produce What is technically known as the upper stroke. In telegraph-lug todsy over lend-lines the translating device sueh as a sounder, operates in about the some manner, the den'nstrohe designs-ting the signal, the upper ohe designating that the spacing comma ed, and the time unit inpsing between tl clownsiroke and the upper stroke designsl lg the ch erect er transmitted, if the same is a clot or dash. in land telegrephy the opera-tor closes the key 01 a short period-ssy one time unit. to de-i note a dot, and for e longer period say three time units to denote dose. In this system the operator innpresses u )(JZJL the line a positive impulse producing the downs!" eke,- and ill he desires to transmit it dot he impre upon the line in one unit of time s megs. im iulse, thereby producing the upper stroke, and if he desires to transmit a dash he allows three time units to lapse before impressing upon the linea negative impulse. .In such method of telegrephy the operator always closes his message with the negative impulse, and the normal poslllon of the device 80 will t-herefore be always such that the lever end near. the screw 31 will be in an upward posh tion. Such in broad outlines is the aim of my invention; but it is obvious thetthe do tsilsof some may be varied without departing from the scope of my invention. If it is desired to relay the cable, the localized device can be provided with means to produce such results, and I have here only illustrated 'tv v i. In a. device of the class described,means' to. operate a local circuit, seni means com- ;1 .f 11 J1 Tl'irougli this movement the I shunt around battery 16 will be broken, and

seems the temiii'rrlls of two circuits which may be operated through the device 30.

en": uxwero that instead of sliort-cireuiting the lmtterics Ill; and 17 with the aid of the eoiu'luetors 3 and 4- the eloctromsgnets 28 end 27 may be placed in, this circuit, so that through the opening or closing of this circuit these electron a-gnets may directly be operated; but. I have found that the arrange ment as illustrated and described ,is to be preferred, because the movements of the wires are very small and their suspension very delicate. The breslnngg-of the circuit will therefore often produce :ipm'king,wl1i :h

detrin'ientel" for lshe successful WOIflK'lHg'Uf the'deviee,

Having nowdeecrileed my invention, whet l eiagimes new, end" desire to secure by Lets Ietent, 15*- prising two conductors connect-ed each eleo trieelly with a separate end connected both jon conduct-lug liquid, e loo said conductors and in n lated to the device, inserted in the line, to more one orthe other oi the conductors 'in and out of the region or? the Second conducting liquid; 2. lo eorslcinstion with a telegxiepliiorw calving cleric-e, means to operate t. ere'with s local. circuit eir ljrecing translating device, said means eomprisingtwo eonductors,'opereti'v sly related. to the receiiring device, e convitli a second reuit for each of conducting liquid s operetivelyrej ducting iiuid for one terminal of eeeh of said conductors and a second conducting fluid common to the see-end termineloi'b'oth of Ettlil eonductorel, s newcondneting fluid for the second conducting fluid, al-cireuit for each of said conductors end a, translating device for said eiruite.

in. telegrephy, s

in the line of transmission, two conductors for some, :1 separate fluid contact-for one to inel' of each of said conductors, a fluid Contact common for the other terminal of lroih sender-tors, it local circuit for each of said conduetons said local circuit. aide ted to be! operated through the movement 0. one or the otherof said conductors.

4. In telegrapliy, a receiving device, two

receiving device in conduct in operative, reletion' to the movshle p rt of said receiving'device, two local on nits, sec-l1 oi sold conductors in operative" men tq beth of said local circuits means i trelnslatirig dev ijce adaiated to be operated j tb operate oneor the other of said local cirthrough cuits through the movement of one or the i said 'con'dncters. other of Said conductors. 5 In testimony whereof I. affix my signature v 6. In gombinatifn witli a fleceivjngbilevice in presence of two-Witnesses. two con nctors-re ate to't e move, e art a of'said receiving deviee, liquid contectQfoq}, I ISIDQR 21 local circuit for i Witnesses: translating device t MA Y (Y- Sm'm,

' -ALVAH Rl rmmgousirf o f said local circuits,

the movementof one .orthepther of.

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