US1251473A - Wireless telegraphy. - Google Patents

Description

W. M. BRUCE, 1R.

WIRELESS TELEGRAPHY.

APPLlcATloN FILED Dias. 1915.

Patented Jan. 1918.

Vlr

. UCE, 31E., 0F SPEENGFEL),

W'R'ELESS TELEGBAPHY.

i o eZZ wim/m may comme:

ie i?. known that i, `Wnzmmz M. BRUCE, 'ix? e citizen @i i'iie United States, residing Spziuglielci, in lie county of Clau-k and Seeci' @hiev have invented certain new and useful Improvements in lifeless Teieg lzipliy, of which he fellewing is a speeiication. y

My invention elates to improvements in Wireiess 'telegmphjv ami lies for its Object 'i0 provide means when-by lie which are usually received. on a telephone receive? een be relayed to un, edina'y telegraph inrinieu, such as n seimde or recexciing (Leslies. vn he meme? Fig'ie is :L diagram, Fine. 2 te ff :we detziii'e views of parte oi the In the drawings, a represenie an mfixlz telephone receiver ,viiich is eonneeed in the usuel in @Wireless circuit. a is the diaphragm ef seifi receive? Ywhich vilmtes in periods coi'espending e ois and dashes fiom the high frequency cu'fen coming into lie receiver a. This receive? will 'be mounted upon n, sui'eG-le frame (use shown) anni there is manche@ o ille diaphragme 'e fine thread-like cennectien E55 the opposite end 0E which is :attached to en adiuetabie spring i5', suitably mounted in the frame Week. To Lilie thread-like connection is etaehefi eine arm c of a pivoe lever c, the pivot of which is marked sa, whose arms c2 and c3 have ateclied tlieree thread-like Comieeions c'-"' and e5 which extend ibo e sliefpemlecl eziclie d'. This suspended briflie dl is preferably mouned Wihin e euitabie, fame (l en which is also mouned a. vibreez 032. The suspeneiea. for elle irile f5 eensiss of 'thee-iiiee eenneetiens d@ and di havinigf proper 'ension ajusmen; in elleA usual wey and to this eidie ie e'iteehed eentacing eem e which is by the vilemtor 052, caused te vibrae vertically enelle, ehe e011- neeions above deserioeci from 'the diaphragm A te esciiiee ieteeiy unisex @viele the adjacent te eoniee'fs me L, is a neutral :mee and opp@ Ceml to which ne contee-img ema e neimally Yibieee. The ceiiuce 62 unifi es f in circuit with The circuit can f Contact e2 und e3 by Wires; 'l and ifeiejf wife 3, to beti'eiy X :incl Wire f y eonaciug afm. The ieiey polarized relay and has :i leezil eil' ite armature j" tlu'eugli e er awiz'e 5 to a sounder m ecerdei wlre G to battery X, and luy re armature f Of ille z'eizij;

preferably previ' the vibmting iev l ment oi 'lle lever c emi iie een@ ,1. e Emy be uned Lhzi 'die imum ei vibmion of the emite/ctie@ eem coincide with he number 'viii ncuaing' 'feeeiver zwi accomplish shown in g, ,j pending lle lever c by thieeddi-Ke smlifeei c7 G8-and e9, one eri lieee beine; preeeebiy provided with a spring; c?. the suppozzs c3 :mel 69 en adjustabie spreecie @wie pi'evided 'with means r' posiien ai dii'ieient im the lever c; isha-fee 'Liiieed-liie eiispe e er .l memes c@ fee-seen which heefi c by which the tension Epen lle Supporting; device may be peperiy ndjuf l Ey adjusting iiie teneicfi epefv vices the vibietione ef the sented; eim

be p'cperly tuned e0 che xeceweii Vibratione The result of iliie censtmcien is that am zz normal ine erm e eeeeed the vibrate by @me vibrator Z2 to 3mm tile neuti'ei er ieeev peint e4 between lle contaes e2 emi ,'iln'a'ebien of the eiiapln'agm causes 'j mei zum e te move et righi; i normal vibrations and. the cel bln ments of he arm cause it ie A mets e2 er e3., engaged e battey 15:

cause the relay te meve 113s z and close the clieul fue the seuil tieneeting device end eine WiL closed during @he pelied 0i lie which will be e shei peeled fel e ile e longe? pensai fue e,

biased so it will fall back as soon as the diaphragm vibrations cease.

For the contacts, I preferably employ mercury as have found a more perfect contact is secured in this Way. l preferably support these mercurial contacts so that the only space between them is an insulated neutral or zero point et. yi`he tendency of the liquid, such as mercury, to form in a globule being utilized so` as to form a Wall on neach side of the neutral point as shown in Fig. 3. Apparatus of this kind hasbeen demontrated to be suiiiciently sensitive to respond to the vibrations received on a diaphragm or ordinary telephone receiver and translate such vibrations into dots and dashes on an ordinary telephone recorder' or sounder.

I have shown and described a polarized relay in the local circuit for operating the sounder or recorder, but this is not essential as various forms of rclayscan be usedk for this purpose. A sluggish relaywhich will be held up by the rapid making and breaking of the contactI due to the vibrating of the arm e, but one which would respond to the makes and breaks between the vibra,

tions, such as shown in my former aten? No. 1,073,886 would operate satisfactory.

I have used the Word diaphragm as applied to a telephonie receiver and by this l mean to include any vibrating device which would respond to high frequency currents as does the` diaphragm of a telephone receiver..

Having thus described my invention, l claim:

l. The combination of a diaphra L operatively connected to a Wireless circuit, a sus pendedcradle, an intermediate operating arm connected with said diaphragm and said cradle, an electro-magnetic vibrating device, and a contacting arm connected to said cradle and vibrated by said vibrating device in unison therewith and in a different direction from that vibrated by the said diaphragm, substantially as specified.

2.1n combination with an electromagnetic 'vibrating device, a contact arm con nected to said vibrating device so as to vibrate in unison therewitn in one direction, independent means for vibrating said arm in another direction, liquid contacts adjarestare cent to said arm and adapted to be brought into electrical connection therewith by the double set of vibrations, said contacts beingl separated by a neutral Zone and connected in a local circuit as and for the purpose specified. i

3. The combination with a vibrating diaphragm, of a suspended bridle and means for connecting said diaphragm to said bridle, and a contacting,` arm on said bridle to respond to said vibration and independent means for causing said arm to vibrate at right angles to the plane otl vibration of said arm when moved by said diaphragm, and contacts adjacent to`said vibrating arm adapted to be engaged thereby bythe tivo sets of vibrations as and for the purpose specified.

4. In a telegraph apparatus, a suspended contactingfarm, and contacting devices adjacent thereto, a neutral or zero point between said contacting,r devices adjacent to which the said arm is normally located so it vibrates to and from said neutral point, a diaphragm receiver and a connection from said diaphragm to said suspended bridle to cause it to vibrate to a position adjacent to either of said contacts whereby the vibra tion of said diaphragm causes the arm to move to position adjacent to said contact and the independent vibration of said arm causes it to vibrate in contact therewith to complete the circpit as and for the purpose specilied.

5. n an apparatus for Wireless telcgraphy, and in Vcombination with a vibrating receiver, a connection trom said receiver to a vibrating contact, means for causing said contact to independently vibrate in one direction and to vibratie in unison with the receiver' in the other direction, said means involving devices for tuning the period of vibration of the contactingr arm to coincide with the vibrations actuating the receiver, and contacting1 devices in circuit with a tele- `graph instrument whose circuit is closed by the combined movements of the contact arm.

ln testimony whereof, I have hereunto set my hand this 22nd day ot' Novenlber 1915.

I l'VLlilAM M. BRUCE, JR. Witnessz CMAS. l'. WELCH.

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