US867896A - Wireless transmission of sonorous vibrations. - Google Patents

Description

E tails of construction which will be more fully explained UNITED sTA'IEs PATEN HENRY A. MCCARTnOF SAN FRA MCCARTY,'DECEASED, ASSIG CISCO, CAL

Be it known thatjFnANcIs JOSEP ing in thecity and `county of SanA Francisco, State of Qalifornia, invented newvand useful Improvements in. oilwhich the following is a specification.

. Wireless Transmission of Sonorous Vibrations of wires or other mechanical in between the stations.

It consists in the combination of devices, and in deby reference to the accompanying drawings, in which the figure is a diagrammatic view illustrating the invention; v

In this invention an induction coil is employed having a secondary winding A, and a primary winding 2.

.The secondary coil is connected inthe usual manner with the two sides of a spark gapV `4.

The terminal 5 oi the primary Windingis connected v tojo'ne pole of a dynamo D, and the other terminal 5 of the primary winding is connected through an arc y6 to the other poleof the dynamo.

, 7 is a wire connecting with `the center of theI primary coiland uniting with the dynamo upon the same side with the wire 5, and within this connection 7. is an interrup'ter 8. V Y

.9 represents a magneticr blow-out which is `energized through the telephone transmitter 10 in circuit with a set of batteries as at 11. The magnetic blow-outfis placed in close proximity 'to the arc 6.

The action in this apparatus' is as follows: The current from the dynamo Dis made to lowrin the direction of the arrow through half' of the primarywinding 2, thence through the connection 7,` through the interrupter 8 and back to the dynamo,'this being the shortest path'and with less resistance than the path through arc 6. At the moment that the interrupter 8 breaksthe circuit,` then the path through the arc 6 becomes mo mentarily the path'for the current, which produces a steady magnetic field. This steady magnetic field produced in the primary by thecurrent alternately flowing through-the arc in -unison'with the breaks of the interrupter, servesl tOneutral-ize and govern the variations of the magnetic iield inthe primary, which is produced -by the interruptedV circuit through 7. ConsequentlyA no discharge occurs as yet at spark-gap 4; But as soon as magnetic blow-out 9 is vocally'en'ergized through a battery, the arc 6 is varied by the blow-Out in unison NCI'SOO',` CALIFORNIA,` ADMINISTRA Non To MCCAETY WIREL E CALIFORNIA.

Specificatipn of Letters Patent.

mui 20,1906. .Serin No. 335,397.'

p II MCCA'RTY, de` ceased, formerly a citizenl of the UnitedStates,` resid`` -4 of the voice.

This invention'relatesl to an apparatus by whichgeo. jnorous vibrations may be transmitted without `lilieaid termediate connections.,

T OFFICE@ A IOR OF FRANCIS JOSEPH ESS TELEPHONE CO..,'OF SAN ERAN-U or vsoNoImIIS vIBRA'rIo'Ns; j

Patented oet 8,190.7;

with the variations of the voice and thisdecreasingof the currentin the circuit through the arc 6 by the mode" ulations of the voice allows thelvariations of the magy Anetic field produced by the interrupted circuit''along through 7 to gain the ascendency' and produce dis- 55 chargesat the spark gap in unison with the modulations f Having thus described my inventiomwbatl claim Il, and desire to secure by Letters Patent is- 1. In anv apparatus for the; transmission of sonorous vibrations, a primary coil, a. source of electrical energy with ywhich it -is connected, a secondary coilvand sparkl gap` device, a return connection from'the central portion of thel primarycoil, saidreturn having an lnterrupter locatedlwithinitslength, and means located in the -main portion of theprimary' circuit to independently vary the current dowing therethrough. v v f 2. In an apparatus for transmitting sonorous vibrations a primary coil, a. secondary coil and spark-gapk devices, a source of electrical energy withwhic the primary coil is connected, a connection between the central portion of the primary c oll and the source of electrical energy, an interruptor disposed in the circuit of the said intermediate connection, an arc light located in the main circuit of the primary` and beyond the interrupter circuit, und means whereby the impulses created by sonorous vibrations actto independently vary `the'vlbratlons in the cirrcuit.

' In an apparatus for transmitting sonorous vibrations, a primary' coil, a source of electrical energy with` which itis connected, a secondary coil energized by said primary coil having` a Aspark-gap device, a return wire connecting with. the central portioxilof the primary coil havingan interrupter disposed in its'icircul't, an arc light located in themain circuit bythe primary; a magnet contiguous to 854 the arc,a telephone-transmitter, and electrically energized connection between the transmitter and the magnet.'

4. In n n apparatusfor the transmission 'of sonorous 1^ vibrations, a primary coll, a source of electrical energy connections between said coil and the source 'of electrical 90 energy, a secondary coil energlzedby the primary coll and having a spark gap device, an intermediate circuit connecting the central portion of tire primary coil with the source of electrical energy, an interruptor located ln said circuit, an larc light .incircuit with lthe remainder of the primary circuit, a telephone transmitter, and an electrically energized magnet lwith which the transmitter is connected, 'said magnet being located in close proximity 'with the arc light. v

5. In an apparatus for transmitting sonorous vibrations, a primary c'oil, a' source of electrical energyfrom which l currents are transmitted through 'thecoi1, a secondary coll energized by Asaid primary and having a sp:1rk emp device, a circuit connecting the central portion of thc primary coil with the source of electrical energy, an intorrupter located in said circuit, un nrc iight located in the. exterior portion vof the primary circuit and normally nou` v tralizing the variations of the magnetic leld o the inter#l rupted circuit. f

vto

"'tral portionV if'ftheI 'yl In Ian, nppnretxis. for .t ranslnittiiigsonorous,- vibrations,

a. primary coil with-menne fortransnilttingan electrical controiieii' mennsflocnted, in'fthat portion fof. the. primary Jrcnit extcriorg. to' ftli s iiortcircuit-and varying the cur rent of vthe short circuit.

cuit. connecting. thefcentrai portion' of the yprimary coll poseo inthe cireniaafud yocaiiycontroiled means connecting with themain'portionlo the primary' circuit for va -ing `the currc'nhof the. circuit.

l '8f lnan ippm'gtusior.trnsmltting sonorous vibrations, a primary coli,'n'source offelectrical energyconnected therewith. secondary c'ol witlilmspark `ga'p, saii coil 4being @itemized-by the prln'inry-,coih a`circnit 4cimnccting the centraliportlonof the primary coil with the source of electrical energy;- an arc` light located within the rernain-, yder of the primary circuit, an electro m'agnct located contiguons te the are, axbattcry, and :i telellwlle tl'nllsmittl in circuit withthebatte-ry. f

9. In'an a'pparatusfor transmitting sonorous-'vihra'tiona an electrically 'energized 'primary coil, a sourceofcicctricaLe'nei-gy va circuit,connecting the central portion of .the primary oil with the source'of` electricnlencrgy and hayfin'gnn interrupter disposed inits circuit, :1n arc light located inthc'remaind'erof the primary circuit and acting scrlbing witnesses.

semen to neutralize the variations of the magnetic field in the primary produced l)y the interrupted ci1cuit,fan` eleciro magnet-contiguous to thenrc, and :i telephone transmitter nndbzlttery in clrcuit'with the eicctr'o umgnc'i'.

10. In`an `upparatusfor transmitting sonomns vibrntions n vseconrinry coli lnuilng :15pm-k gap in circuit, :in electrically 'energized prlnmry coil, rsonrce of eleclricnl energy a circuit; connecting the. contrai" portion of snlgi coll` -with tliesou'rce of clect'ricnl energy, an interruptor ln sziiil -netic iieldofy said' circuit, n telephonetransmltter-y'hnd .conuectionswhereby the `sparkgaip discharges .fu-e .varied by vocailrnpnises'through the trnsmiitcr.

In testimony whereof I, HnNnY A1 llluCAnrr, Anilminlsi trator o'fvtheestateo ,FM-:gers .osnrn MCC/urn", deci-used hove. hereunto set my' hand `in this -presence of two' suhimNRif A. Mcc..\n'rY, .fidministrutm of Hu astuto of Finnois .losvjih .iid/'orly` dcco'usf'd.

Witnesses S. H. Nonnsn,

Fin-:mamen E. illumini

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