US1000078A - System for transmitting intelligence. - Google Patents

Description

61.0. GUMMINGS & J. A. KICK." SYSTEM FOB- TRANSMITTIVNGI. INTELLIGENCE.

APPLIOATIUN FILED JUNI: 16, 1909*l Patented'Aug. 8, 1911. 2 SHEETS-SHEET 2.

'Y INYENTORS Gear-ge C. Capraia/'fura dok 4. /f/c/r ATTORNEY Wwf@VN ated..;'

In the 4preferred embodiment" 4oi the 'Wave form,

www STM-sSPAf-PENT OFFICE* Groer. ofc'ummnes AND JOHN n. inox, or WESTERN SPRINGS, rumors.

To-all 4whom 'it muy concern.'

Be it known thatl We, GEORGE C. CUM- `MINGS, a citizen of Canada, and asu'bject of'4 King Edward VII, and JOHN A. KICK, aV citizen of the United States, residing at` VVestern Springs, in the county of Cookl and State of Illinois, have invented certain new nd usefuL Improvements in 'Systems for 'lransmittin Intelligence, of which the fol lowingis a ull, clear, concise, and exact dei scriptum, reference being had to the accompanylng drawings, forming a part4 of this specification.

Our ."invention relates to--a systein'A for transmitting intelligence, and its objects and' advantages will a pear.

l The -invention,= 1nthe preferred embodi" ment, employs an electro-magnetically oper'- ated typewriter atlthe receiving-station.' At thetransmitting station, we employ4 means for impressin. upon the 'line-the current of wic i is preferably an alternating current, 4and there are selecting keys at .the transmitting station 4adapted to'select and occasion modification of certain selected waves, wherebyapparatus at the receiving station eculiarly 'responsivefto the wares of modi d form may beselectedandoperl ventio'n, we em loy current w-avelinodif ing means adapte i to operate" substantlaily throughoutthe. period occupied ini the' for.-V

ing t'o restrict the actiono. the modifying devices,'and preferab y sion, each receiving device being .controlled lurality of 'electroma net ic devices, said e cetro-magnetic devices "j'ng unresponsive to the current of normal waveV 'forn1 ,f'jbut bem responsive to .modified waves. erably 4employ .rel y tnech anism included in4 the linecircuit which-gis responsive' tocurrnt of modified an.

' ,to th'einfluence 4of .a polarized relaylaving operating windings 2, -3. 'upon which thesystem operates is such tlni't 1J.

4groundeiil terminalof'the battery 4,'throu h "11 companion to the winding?) jgroun ('the elements latterlyf4 named 4' coated art., the receivingstation), 'Aifg'zonl s 'nection is observed'eXtending-fromthe 'miel-f4 being well known to'those familiar SYSTEM FOB TRANSMITYTING INTELL'IGENE.

Patented Aug. 8, 1911.

line, but we do not WishV to be limited to such current.

We will describe-curinventionmore fully 'by reference to the accompanying drawings, 60 showing the preferred embodiment. thereof, in which- Figure l is a 'view of the transmitting end. of the system, together with a portion-of the" line extendin therefrom. Fig. 2 is .adviewj 65 ofthe receiving end ofthe system.' Fig. 3A is a View illustrating diagrammatically Waves' of current impressed upon ,the/line each' time a selecting key is operated at 'the transmitting station.

The transmission line-a terminatesat the Station. A from which signals`-a [fleeing @transmitted in zijn armature"1,"tiat-gsubject Theprinciple when the4 line a is innormal or idlecondition, Vthe 'armature 1 occupies 'that oneofits alternatlve positions in which the 'groundd- ,1 source of unidirectional-current- 4 isineludedY in circuit' with thesaid armature switch 1 4 and the Aline a. In this normal or idle' com dition, a grounded circuit is establishedijfor the linea, which may be traced lfror'rrthe thearniature switch 1,- the resistance 5, e

rig'lithland half dof the differential relay-- 7., the winding 8 of a-polarized relay (the l element-"s just` named-being atthe transmit# ting station A'), the windingg off. larize'd'. relay, 'thewinding of relay-10, t indi-lig an -belon ff Vnection extends to apparatus similar t" and in the same "way as the'con'nection'shown A10Q` ,extendin from the middle 'off' the .wirid' l of relay in Fig. V1, this circuit'arangem art and being ,omitted in'conne lVhen the of ma et 16 is attracted, it also, by lmeans' o its electrical connections, serves to lshunt the 'resistance from the line, further to promote wave l form amplification or modification. The re. sistances 5 'and l4are' so 'proportioned with respect tothe' line-resistanceand the battery normally 'present upon' the; line, that -a given f minimum amount of current is constantly flowing overtheline.' A vsecond ground con? ne'ction at the transmitting station, includes the adjustableresistances 17, 18, that are con. ductivelyconnected with ground, and which are vconnected with groundfthrogh'capacity 19', -the branch. conductor containing the resistances 17, 18 also including the lefthand winding of the 'differentiallygwound magnet A At the receivin station, the resistances 12, 13 arealsocon uctively :connected with ground, and are further connected with .ground through capacity -20.

The line cir'cui't thus far described isquite familiar to those'sl'rilled'in the art, it being found present in comercial forms of quadings butjone. receivili i ruplex telegraph'y, a part only of the appa-` ratus being illustrated" in connection .with

the line c, to enable our invention to-be understood. We 4have shown in the drawstation B and .one transmitting -station Y cient of the `'apparatus'in association with the'line a toshow how 'selective currents aretra'nsniitted between thetransmitting and rec 1 vin'g stations. It will .beapparent to those skilled in the art-particularly after the invention is. further e1qn1ained, that there T V`I'xiav-be a transmitting and receiving station at'each end of thesame'line Aa.' Y' Wewill not `4'0 describeinfurther detail any of the equipment "that enters peculiarly -into the 'line equipment, such being so well. known to those skilled in the' art..

line, is ofpositivesign, whenev ln-acc'ordance with our invention, con-` tinuous current of one sign, and furnished," for example, bylthe battery 4, is normally in circuit with the line a by way ofthe ar' 'mature switch 1 By way of example, it may be assumed that the current furnished by the.

battery 4 thusl normally present. upon the aracter selecting'current 1s impressed. upon line, We prefer' to impress current upon'such line *which has eight alternations'; that-is, we'prefer-1n some 'way toreplace'the current due solely to the battery 4, by current which will have a reverse or negative sign, to produce'.

the Avfirst alternation, vWhereafter the current of positive sign is im ressed'up'on the line to "produce a 'second a' ternatin', whereafter' current `of negative'sign is impressed upon the line to produce the thirdalternatiqn, and so on until four alternationsof .ngatives1gn,' joinedv or in tandem arrangement with four. alternatlcns of pos1t1vecurrent, have occurred, -whereupimv the' character selecting is theoretically possible to provide a peculiar adapted, one to be substitute forjthe' other, "according to the operationfof/theswitch 1 4 ing tothe line ais replaced by suitable al r'' together with suiiif .teryl 21 is illustratedabove the median'line .24 at .25, and so on, the additional curves 26,

rent that is present due to the battery 21 and amplitude of certain of the'waves, thatwave or -tho'se wavesbeing Vamplified which --will current isabrupt-ly removed from the linea,

in 'orden that the work' of selection, as a result ofthe transmitted current, vwhich hasv beenaccomplished,'may not be defeated, It 7o form of alternatingcurrent generator that mayfbeltemporarily associated with the line a, so as to give the required alternations, but from a'practical viewpoint, such a generator doesnot'givethefmost etlicient service, and we, therefore, 4employ relay' mechanism that is adaptedalternately tof'mclude' the Winds i ings- 2, 3 of the samepolarized magnet that governs the' armature switch 1, in-circuit:y

withundirectional current,'so that the-bate tery 4, furnishing positive current, maybe vtaken oifthe linea andmay be" replaced by 'the 'battery 2 1, furnishing unidirectional 'current of .negative sign,-.it being ,our preferred A practice to 'use two b a 21, furnishing currents of op osite sign and minating .at its ends in straight lines 22, which serve to llus'tratethenormal pres enceof positive directcurrent upon the line;l

4, isiuuamted'at 23 below the median une -24. The nextalternation which occurs upon the substitution. of the battery 4 for the bat- 27 ,'28 below the ,lineA 24 representing the' cur' the additional curves 29, 30 and 31 above the line24 indicating the' current that .is due; to therefassociation1 of the battery 4. with' the line.- While in Fig. 3 we have Shown the curves 23,26, 27 ,v 28 as being very slightly -1-1 disjointed. from lthe 'curves 22, 25,29, 30, 31, dueto the fact that the armature switch 1 breaks before'making contact, yet we do notwish to be limited tothis very slightlydis i i I Ajointed relation of said curves. The curf rent of -the form illustrated in Fig.` 3is not' in itself adapted to constitute a4 character selecting current, 4it' beingnecessary, in ac' cordance with vthe preferred embodiment ofY burinvention, to amplify or', modify theperform the workl that'is to. be 'done' atthe` receiving station, as will appear.' T-his'modi` 'cation`of a-wave or waves of the alternat-' in current im ressed u on the line"'a is de- .loof c. TheA first alternationwhich-occurs whenthe battery 21 is substituted for "the'battery'g,

l -the circuits established by the restoring re# the armature. switches previously movcd to the left by said coils are moved to thejright Vby the coils 70 to occupy their normal positions, the coils 70 being free to perform this function, as --the coils 54, 56, etc., are then on open circuit. The coils 54, G,- etc., thus constitute actuating coils and the coils 70 thus constitute restorifn coils. The metallic circuit which inclu es thecoils 70 also includes the restoring coils 71 that are mates to the coils 44, 45,46, 47, 48, 49, 50, 51, the purpose of all of which coils appearing later,

lay 69 also including the coil 72 that is a mat-e to the coil 42,v so that the armature switch 52 will be moved to the left to occupyI its normal-position Thus we have disclosed a system of'magnets or relays that impresses an exact number of alternations of currentupon the line a for purposes which .will later-appear, as a consequence of each character key or switch operation, when the apparatus at the receiving station shown in Fig. 2 is described. The coil-44 is shown in connection with' the 's lring .36 of key 32, circuit -b'eing estabobvious may close? lished through this coil 44i'when `the key 32 is depressed. The armature switchas'sociated with ..the coil 44'is moved to the left by said coil when energized, whereupon circuit for the.. magnet 16 is closed, whlch circuit.

may be traced from the grounded terminal 'of said magnet, through the winding of the -magn`et, the armature switch associatedwith the coil 44,. to the grounded battery 41, this circuit bein maintained during the .connection 'oft e armature switch 53 with its normal contact, and, therefore, being maintained duringvthe time that the coil 2 is energized,'s that during the timev negative current from the battery -21 is impressed upon the. line, the shunt including the resistance 14 is broken by the separation of the contactsV 15 and the resistance 5 is shortcircuited,'dueto the operation of the magnet 16, whereby the wave 23 is modified or ampliied orf purposes which willappear 'when the apparatus at the reeivingstation is described. -If key weie the key depressed the coil 45'Y would be' energized instead o the coil 44, yso 'that thev shunt 14 would `be removed and the resistance 5 during the timeuthewat formed, thereb modify; the wave-f2 5. 2- ome haracte'rkeys,

coils, as, for instance, the chary 2 is shown as being adapted not only to close ,circuit through the coil 44, but is `also adaptedto clsev 'circuit throu h coils, .47 and'48- which have'terminals in t e s rin` 37, 38 of .the key 32. Thus when t e c aracterikey or switch 32 is operated,

the wave23 isnot 'onlymodified or anpli# ied, but waves 29 and 27 are also ampl ed neugh a numor modified; when character key or switch 33 is operated, .the Waves 25, 26 are ampliliedor modied, the contact sprin 38 having no coil shown in connection ticrewitli; when character key or switch 34 is o erated, waves 26, 27 are modified or ampli ed; the character keys thus serving to cause the modificationor amplication of particular' waves or groups of Waves lto cause the presence of characteristic current uponthe transmission line which will cause the operation of responsive devices at the receiving station suited thereto. From what has been described, it willbe `seen that thecoils 44,45, 4G, 47, 48, 49, 50,-

51`are in coperat-ive relation with the ar-l mature switches 53, 55, 57, 59, 61, 63,65, and 67 respectively, so that when any of the coils 44, 45 etc. are energized, the shunt 14 is broken and the resistance 5 isshortcircuited to permit waves of current due tothe engagement ofthe associate armature switches 53, etc.' with'their-normal contacts, to bev amplified or modified, the shunt 14 being immediately. restablished andthe short-circuit about the resistance 5 immedi-l ately removed when the wave modification I has ceased. Thus each normal alternation occurs during the'time an armature switch, as 53, 1s in engagement with its normal contact and is in circuit withthe-battery 41.

It is during the. period of this engagement of the normal 'contact of such armature" .switch with said armature switch that the wave of current is amplified or modified by the associate wave-.modlfying magnet, as 44.

. The restoring circuit stated, so that when the cycle of operations initiated by an o .erated character key has been concluded, t ecoils 71 are energized,

to restore whatever'armature switches associated 'therewith may have been moved, the relay 69, in one operation, thus serving to restore all of the apparatus at `the. transmitting'stati'on to its normal condition, las illustrated in Fig. l.

Having now described what occurs at the transmitting station, and having' shownl in what manner alternating current of modified and unmodifiedwave form is impressed upon the line and is transmittedto the receivin station," we will now describe .how

this a terna-tin tionA of tliereceiving devices at the receiving. station. The polailzed relay' 9 11 at the re- Y Aceiving station-has an armatureswitch 7.2,v

which is normally maintained in en agement with@ contact spring 73 througthe agency'vofthe coils 9 and 11, which are normally in circuit with the battery 4, the' olar'ity of. the current'froin the battery 4 eing such that'th coils 9 an'd 11 keep the armature switch 7 2 normally in the position illustrated. When the current impressed current .effects the 'operaoverned by the magnet 69 includes the.v coi s 71, as has been lto the grounded battery 95.

92 has eight armature` parent that if circuit 96 is to be established, it must be established during' the presence of the first alternation occasioned. at the first time t-he battery 21 is substitutedA forthebattery-4. The magnet 10, in serial relation with the line a and subject to the wave form current, is so' constructed t-hatit will not be sufficiently energized when the wave form current has itsl waves unmodified; but as soon as said ma t et 10 is subjected to an amplified wave o current, it will attractits armature switch 94, and inasmuch as the I ,wave modification is limited to the period during which the wave undergoing modification is beingrformed, it is apparent that the magnet 10 can only be sufficiently energized to' attract its armature switch. during the presence of a givenwave upon the line, rovided such Wave -is amplified. Therefdre, the circuit96 is established during the presence of the first wave of current upon thei line, provided such wave is amplified, and not otherwise.

-The circuit 97 includes the' l next armature switch from the top of the" magnet 92,' and is established if the magnet 921s energized,l it being understood'that if the. ma et- 92 is to be energized, in order that thls second armature switch from the top maybe actuated to close circuit 97, such energization `must .occur during the form a.

tion of the second wave, and that vsuch second wave must' be amplified, in order to sufiiciently` energize .the ma et 10 to close its armature switch 94, i't'bein understood that eachtime thearmatur'e'switch 94 is closed,

thegrounded battery 95 is included in closed "circuit with the magnetv .92.

Thus when a wave of current of normal form is being im` pressed upon'the line,the magnet 92 does not respond, and, therefore, the receiving apparatus '.beyondfst-he magnet 92 is not influence'd, although the normalwavesand the amplified waves each .sive,`as. has been set 60.1 circuit 98 is closed when the thirdwave isV serveto effect the energizationl of the coils forth.. Similarly, the

' modified; circuit .99v isv closed when the fourth-waveis amplified; circuit 1 00. is closed when ,the fifth wave 101 is closed when the sixth wvelis alinplified; circuit 102 is closed when 'thes'eventh is amplified; circuit .leadingfromthe typeI .grou mcluding'the type-bar magnetbeing` selec ed, a .corresponding normal contact' of Aarmature switch 126, the normalcontact of.

wave |is amplified; and circuit 103 is closed when the eighth wave is amplified.

'Each of the circuits 96 to 10?., inclusive,

'includes responsive apparatus that governs the reproduction of the signals or characters at vthe receiving station that corres ond to the'actnated character switches or -s 32, 33, etc., at the transmitting station.

designated, and each ofwhich serves, when energized, to attract a catch, such as is'illust-rated at 104, each ty e-bar magnet havin4 such a catch .104 individu-al thereto,- sai catches being operable. independently of each other. A printing magnet 10.5, whose'control will be later setforth, is associated with 4the catch 104. The armature of-the printing magnet, when energized, engages an attracted catch 104 and escapes the remaining and nnattracted catches, whereby the typ e bar 106 is operated to cause the impression of the type associated with the type-bar, upon't-h record sheet 107.

The System of our invention has thus far been sufiiciently described to have it generally understood that when the character keys at the; transmitting station are depressed, certain type-bar magnets, or'equivalent devices, are thereupon selected to adjust the type-barstructures 'to enable such type-bar structures`to be operated individually, to print the record upon the sheet 107.

While we prefer to use typewriter structures as recording devices, we do not wish "to be limited to such an instrument in all' embodimentscf our invention` Lack of space prevents us from showing all of the type-bar magnets, constitutingthe preferredform' of `receiving devices, that desirably enter intothe system of our invention. We t.

have shown three .groups of type-bar magnets, five magnets to a group. It is, of

e cir cuits 96 to 103, inclusive, govern the typebar magnets hereinafter to be numerically so 'A ino 'course, underst ood that the number of mag# nets per group may be, and 'desirably is, iny Acreased. One group of lvtype-bar magnetsiff contains the magnets 108 109 1.10 111 an'd '."-1

112;v another group oftype-bar magnetsin'L-. cludes the magnets113 114 115 116 and." 117; vthe third 'group of type-bar magnetsfjincludes the magnets 118 1 19 120-*121 an'd 1- 4122. We will 'first describe the mannerin which. and the'apparatus Uywhich-the type.-

bar magnets 118 :'to 1 22, inclusive, are sc'- lected andenergized to attract the catches 104 individually associated therewith. 'Cir-,-

cuit for the type-bar magnet `118 inclildesffff1 the uppermostar'mature switch of the magnet- 123, the uppermost armature .switch ofv the 'magnet 124, the grounded contact of'thevv :iT-'conductor' ,125' ar magnettof there'.

latterl armature swltch) N 1m00.071s,

armature lswitcli'127` (these switches now occupyin their'norm tins,a"s illustrated), t elelay orm '128,'Whichgovenns the printing magneti-isi? eluded lnftheirV 4energizing circuits, magnetwilll appear, and 'thefgroundcd battery 79.` Themagnets 123 and 124 must, therefcre, be energized in' 'order that type-bar ma 'net 118 may be selected,-a.ndH inasmuch as .t ese magnets 123 124 Iarer'esper-:tively included in circuits98 and 103,'v the particular a-rmatui'eswitches of mag-net 92 incIudedin'suChcil"- 7 cuits 98a1'1d-103, must be.` closed,.in orderto close the. circuits S18-.and 103. The magi net 92, therefore,n iust be ener ized in .the

'manner which has been outline' during thethird andge'ighth4 Wave of; current impressed upon the main linea-andinasmneh as'those i armature swltches of ,the magnets1'23and- 124 that areincluded 'in the circuit 'oftypelbar magnet 1'18. are in serielrelat'ion, it is necessary tohold 'the nets' 123 `and 124 linf-their energized condi1g1ons,it being apjJ'ai-ent that 4the armaturciswitches included. 1n the initial energizing circuits o f the mag nets V123 and 124 are immediatelyf opened *upon the' cessationof the amplified current 4waves that causedthe energlzation of the magnet 9 2: indirectlall as has appeared'.

lVe-'desirably provide locking circuitsfor such magnets 'as 123L and 124;,1Which locking circuits include the `battery 129., which is common thereto. .The locking circuit for A"magnet 123 includescthet'wolcwermcst arlf ,inatureswitches ofthe magnet 12.3, afndinay lie-traced from the 4grounded battery.1 29,1 -l'hrough the armature switch belonging` to magnet 130, rto thetlovscrrnost armature switch of magnet 123, the. "Windingof mag- ,-net 123, toA the 'next .td the lowe'rlnostarm'afture switch of magnet 123, thence to g'reun'dj` :at .131', said mugnet'123haVing/been' ener. gized in, the manner' that 4has been stated( lie-locking 'circuit' for4 magnet 1.24:V may be traced freni the `grounded batter-X129, 45

' the next'to thelowerniostarmatureswitchf through the armaturesswitch of magnet 130,

ture switch, `the Wil-ldii'igA 'of vmagnet- 1124, te

the lowerinost 'farmat-ureswitch of magnet 124,Y toth'e'grounded 'armature switchcf ive- 'v lay 131, ,VVlientypehal*` magnet 119istd beselecte'd, the magnets 123and 13 2' must be'energizel, asthearmature `switches of these magnets' jointly determine .the .circuitofy the type-bar "magnet 1151*', Theinagnet .closed When its ycircuit V102 is establishell u t liquslyldescribed conductor 125, ,t It will W6 armani-ne'.

desired to select type-ba-r'magnet :122,1nag-f.

Thus,'in selecting type-bar Amagnets the" f-gized for selecting ma netr119; thelna'gnet 133being; energized.- or selecting'magnet-4 V120;.the mag-net '1311 beinfenergized'for seper Obviously,the'gnumber .of type-ba 'lnagnetsin'each group may beginicreased or `mitting of the illustrationcf incre type-bar' ",magnetszThe 'group of typebar magnets` 'th.at l 1ave,' thus 'been 'particularl described, ieper-1dupon 'the 4con-Infection lo their coni '.ductors 125 .with Vthe j armature switches- 123 127. Vvhe'n the type-bar 'nigiietsrofany n plification of the seventh Ware. agntbemgselected includes in' its.' cuit antllfer conductorf'1'25 similar tc the' be-v unneessaqy describe'theV locking' cir; I

locking circuit of magnet 124.

133 being'included` in circuit' 101,'Wl1ich 4esteblished. lwv.hen the sixth Wavefis amplel fedi'fl theiselect-ion of this third type-bar magnet otljier conductor is-employed.

itji desred to selectftype-barmagnet 121,' 7.5,

.magn .123' have their venergizn1g circuits closed, the magnet .-134 ybeingin- .ciudedi'in-ciieuit10o, which is established 'U when the fth' Wave'isamplified Ifitisl j '80 .Ilets 123111111 .135 are energized, ma net.'ll5

being' includedjin'circuit99, Whichis estabf lished whenV the fourth .,Wavc" is amplified;

group composed of magnets 118- to- 1"."2',`if11 V clusive, niagnet123 isenergize'dl each time, which is upon the amplifcationzcf the third wave.. l During the. stateA 'of energizaticcf- .magnet-123, .one of the other. mav ets 1124,

132, 133, 134'Qand 135 is energize' oneigfdr each of the type/btw magnets tolbeselected,

4*the magnet'124,beingenergized for selecting lecting magnetlf121; and t ing energized vfor selecting theA magnet 12,2.

selected and energized, it operatesfa' catch,

`such 'as' catch-104,lfwhereafter thefpifiniting'ff magnet' 105 is energized, as" will be" dc scribed, in orderl to occasion the alpplicetion' V of the typecarried bythe type-bar, toV the g "diminished-as desired, We.1min;selectedY ,five type-bar magnets p ergroup in order tcl illustrate our invention, space not 'well perf ofthe other v4tiiorfgioups'are' to `be selected, the conductors v125 `s l1'ou '1 d .be disconnected, which; is accomplished hji shifting'4 (inemthe other 'ofthev two armature.switchesl126 should he hiugh't' intorel'ation with` that." vgroup of type-'har ,magnets-freni* among' Wlii'cli certain 'type-harmagnetsV are {to v'be y selected. If type-har magnets of thev group containing magnets 113-1141 115 11 6 arid 117 i ci .i parete besele'cted, the conductors 13G lead- 4` .Qn d `group, :are to `brought Iint-ocircuit.lsf-) 1l ingA from ,the ,type-bar magnetsofthissec- Y Eachtime. a. type-bar' magnet'has'been thus-'11 1217'that` are normally serial relation '\fv-ith .each ether, and a conductor, generally snni- `lar in func-tion to the conductors 'l2-5,-

` 35 brought into circuit relation with relationl with the magnet 128, this result being accomplished by shifting the armature switchl 126 to the left, armature switch 127 being allowed to remain in its normal 'osition.. The armature switch 126 is shifted toward-the left by amplifyingthe first wave -of current that isA impressed upon the line;

that is, this armature switch 126 is shifted to the left when the battery 21 -is first substituted for -the battery 4 upon the operation of a suitable characterv key that will'oc- 'casion, in the manner which has been described in connection with the transmitting station, theampliiication of the first wave impressed upon the line. When the first wave is amplified, the magnet 10 is subject 'to suiiciently increased current to occasion its energiation, -whereupon circuit may be traced I from the grounded battery 95, through the armature switch 94, through the magnet 92, to its ground, whereby circuit 96 is established to occasion the energization of the-coil 13T of the polarized relay having the armature switch 126, this coil 137 drawing the armature v26 to the left, whereby the conductors 1&5 are removed from cir.- cuit relation wih the first set of type-bar magnets 118 to 122, inclusive, and the conductors 136 are ",v'lacedpin proper circuit rolation with the type-bar magnets of the seclond oup that is being described,.and numheraldr 113 to 117, inclusive.

AThe conductors 136,"as aconsequence' of the movement of the armature net 128,. which is like' the circuit relationthat the v'conductors 125 previously had with said magnet 128, as a consequenceof which the type-bar, magnets ofthe second group may. readily be selected, the character keys at the transmitting station which causef this select-ion each servlng to occasion three wave amplifcations instead of two, the firstwave the typebeing selected, as the sys amplification always occurring -inmconnection .with the first-wave 'impressed u on the transmission.Y line and the two ad it-ionalV areclosed when thev typefbar magnets 113,

114, 115, 116 and1117 are to be selected,1mag

nety -124 being.. e'nergi'zedwhen the type-bar-- selected; magnet 132-.'

magnet 113 1s to be 'being energizedV when the. typebar magnet 114 is to be selected; magnet 1,33 .being enerv gized when thetypebarmagnet 115 isto be `vided for connection with `three magnets 126, are' the niag-v `the first wave is amplified, magnet 92 is againenerginedand selected; magnet 134 being energized when the type-bar magnet 116 1s to be selected; and magnet 135v bein energized when the Weber magnet 11 is to be selected. hilo, as shown, the magnet 123 is energized each time a type-bar magnet is to be selected, suchis the case only in view of the system as illustrated, lack of space preventing us from showing that it is not necessary to have magnet 123 energized each time a type-bar magnet. is being selected. With our system, two magnets, similar to the magnets 124, 135, 134, 133 and 132, may be selected, rovided they are in-suitable circuit relationwith the type-bar magnets that have been shown, conductors 1351 being associated with the armature switches of magnet 135, conductors 1341 being associated with the armatureswitchcs of magnet .134, conductors 1331 being associated with-the armature switches 133, and conductor 1321 being associatedwith the armature switch 132,'echone of these conductors being protype-bar distributed among the three groups. If the type-bar magnets ofthe group iucluding typefbar magnets numbered 108 to 112, inclusive, areto be selected, -the con# ductors' 138 extending from the type-bar magnets of this third group are placed in- -proper circuit relation with the magnet 128,

which result is accomplishedby the operation of a character key at the transmitting stat-ion which will occasionA the amplification of the second -w'ave im upon the line, in order that the switch 127fmay be' moved to the right, for the purpose of con necting the conductors 138 with themagnet 128. When the second wave is amplified,

no t a-Inplifed,4 as the arma-' ture'switch 126`should remain in its'normal condition. .When this. second wave is circuit 97 isj'established, -which circuit includes the actuating coil 1'39 belonging to a polarized relaythat includes .the armature switch 127, t'o`- bring said armature switch into electrical ctmliection withfthe conduc tors .138, for .the purpose specified. When Iris Q .the type-barv magnets of the third group 'of five are to betselected, themagnet 123' again .j

is energized (as the system time one of .such type-bar magnets' lis tov selected, and magnet'124 is 'energized when type-bar magnet 108 net 132 is energzed'when the typebar=fmag. 4net'114--ia2t1o selected, magnet 133is'en'- er ized when typefbarmagnet 3115'is to Vbia-"12'5 is'to be selected, magi bar'magnet 116ieto beselected-,uandamagnet i e-bar magnets,

135 is energized when' type-bar magnet 117-- r isto be sele fd. Wehavethus provi 4 groups of,V the magnets of' one of-which being selectable when-two' .0,-- I

waves beyondtbeLs'eond wave impressed "upon the line a' amplified. When .theV

:lend- 111e secgnd and' add' gilets 'the other two groups .Wapvare -to :be amplified, theretq the first or second "is toly e' amplified, according'tri the ps bart magnets from which semagnet. hs been selected, 'and .the 'typefhar catch LQi has' therebygattra/cted, the printing: magnet 1 5 has circuit A :lc'sed therey Hough., Which"f olosfre` 'isf effected byI thev lire f the armature switch belonging to- 'ery 79, 'the' selected typeb'an 'fand v'the two armature switches gelei-9111515123, 124, y132, 133, 134. :md

cuit Q'orf the. selected type-bar magnet,- vthe h1-the Operation ofihe typ'fbm' beforffftlhe armature offniagnet 105 is nt- The 4circuit that is established by f 'from th'e grounded termielpf magnetfl, 0-

thlfongh the armaturejswitch of magnet 12S,

` and also. through 'the battery 7'9.

'lished vwhich may jbe traced magnet- "105 "has oper- 'l lthe,selected type-bar tofmaketheimpr fon,v Vtire switch 140," wheebyacircnit is Vestab- 87, through -the windingpffnagnet 88,the

u )the rel 139, :'01

shifted from its normal;- position f-{said lngs mal position, "if such'airmatnre Vs vsfit'ch has restoring coilsflljhving `ino operative ef,-

v feet upon ythe' armature 4switches 5126 .when such switchesarenot vshifted Vfrom the norm'al positions)g, so "that the condctors 6 "138er remroyedifitom A0];)erative lcircuit ,this magnet 128inc1uding in 4its- 4Zopera'ting' slnggishl'y 'as Acomffatu'ref :switch of relay "128' lthrough pe upon the type-bali` it operates; an afmai- @imagini-131,130 mseriess thrcugh whe, restoring :eens-141. .141. beweging t0 'in the actuating coils 1e-z gronndyyyher'eby saidrestorng coils- )141' are ener'g-iz'ed, to attract one or the other '50` ofthe'arniature switches 126127 toits Vnorsensed-, itinere-with no; @name-s these j i' j 1 ceys. at the transmitting station ycircuit: established 'through the :restoring coils,l 1411.V -'Ijhe relays 130 lllf-hav-ng been energized asia, conseqen'ce of'tieir inclusion in the samecircliit 'with therestoring coils neti128 as a' consequence of-the V'eiiergizing switches, and thereby thejbreakirig ofthe ylocking circuits-,for the twoactuated111mg-l restoration to normalof'all of 4the apparents; i

'lerizedj-relays inclndingthe coils 74C 77, etc.V

'which were revioslyrest'oredyin the manner 1Vp'revonsy describembythe relay 489 y e provide 'a magnet l142.bevil-11g(an'urinatnre switch provided with 1 contactsl that formi additional circit terminals ,forfthn rrestoring circuits -inclnding the;coils 90 and coils'130 aridll, the armature ,switchf'of Thgis thefmagn'et '88Msets -intol operation a number ofY instrnmentalities" that cause "the4 at therecejiving stat-ion, excepting' th'ose po;

V:being 1 1y sluggishly operating magnet, 'so that. d'n1'ing' tl1 e impression of tiin'rent` Waves ii'ponthe line itwillg'not' have opportunity tobt( l there-'should began" fline interruption, for'A `mimi@im ecgtiojn withiheiin, "icon-leen to close thelgjrestiorihg oil-' cultsfinentione sothat if thereha-sbeen but; artial 'opeifation'-at the 'receiving 4station oft e apparatus thereflocatedfthe art-ia'll'yi .operated apparatus `Will/be restore' 'ma-1,'. s o that' when the next'cliaracteristobe' recorded at' the receiving station,- theappara# n.; D

tus i at theJ receiving stat-ionnii'll bein c ondi tion to permit of snob recording.

to the precise' Vapparatus11nd' circlitarren-gements shown, as ma mfade'- in. the preferred-1.c rn'bodlmen t o Y our.

including a" transmission line"'extendingl from 'a transmttingstation to '5a receiving Ail'lvention w'vithoit, depiirting from the spirit f readil f-.be

1. :A System" of '.transmieg imenigen,

so. I

Iso

. statio1i ,ua 'series of relays operating in succession, and each-,serving to cause" the irnpression of a current wlave" upon the line and together'the impressionof waves in "fixed order, mea-ns for effecting modifica-v tion of normal Wave formation and restricted to operate VWithin the period of formation of the wave undergoing modifica'tion,v` and4 electro-magnetic responsive apparatus latzthe receiving station.

2.- A system of transmit-ting intelligence ineludin" a transmission lineextending from'a ransmitting station to a receiving station, a series 'of relays operating in sucl5 cession and each serving to cause the im-l pression of a current wave upon the line and together-the impression of waves in fixed order, means for effecting modification ofthe normal current waves, means for select, ing' Waves to be.modified and timing the operation 'of the aforesaid meansto occur' Within, and be limited to, the period of formation of the Wave 1iindergoing modification', and electro-iiiagneticA responsive apparatus at the-1 receiving stat-ion;v 3.. A syste1 n of transmitting intelligence including -a transmission line extending from a transmitting station to a receiving station, a series of relays operating in-:succession and each serving to cause the 1mpression of-a current 'Wave upon the line including a transmission line extending and together the` impression of waves in 'fixed order, means foreifecting modiiica tion'of normal Wave formation, means for causing the wave-modifying means to operate substantially throughout theperiod occupied inthe formation of the Wave to be modified andserving to restrict theactionof the modifying means to such period, and electro-magnetic responsive apparatus at the receiving station.

i .4'. A system'of transmitting intelligence froina transmitting station to aA receiving station, a series of relays operating in succession and each servingv to cause the impression of acurrent wave/upon: the line ,and together the impression of' Waves in` 'fixed order, means formodifying the norma'l current Waves, means for'select-ing thewaves to be modified and causing the modification of each-Wave under modification .to

'occur.substant-ially'throu hout, and be'limited to, 'the period of ormation of. Such wave, `and electromagnetic respon-sive apparatus at the receiving station.

5. jAlsystem of transmit-ting intelligence including a' transmission line .extending from a transmitting station to a'receiv-in'g statioma series of relays operating in succession- 'and each serving to cause the impression -of a ycurrent Wave upontheline', re-

lay mechanism l-for effectin individual wave 'inodieatig'nfand restricte to operate with- -mtlie period of' formation, of .the wave iindeigo' n modification, and electro-magnetic respon ive apparatus at the receiving station.

6. A. system of transmitting intelligence including a. transmissionv line extending from' a transmitting station to a, receiving station, means for 'impressin wave form current thereupon, means for e acting modi-- lisation of'tlie current Waves, a plurality of l.

successively operating relays, each adapted to bring 'the means for eifect-ingwave modiication into action, means forselecting theA wave-modifying relays to be operated, thereby to occasion modification .of selected Waves, and electro-magnetic responsive apparatiis atthe receiving station..

line extending fying relays to be-operated, thereby to occasion modification of selectedwaves, and electro-magnetic responsive apparatus at the receiving station.l

8. Asystem of transmitting intelligence 'including :1i-*transmission Aline extending from a transmitting station to a receiving station, means for impressing iva've form current thereupon, means for` effecting modi-` fication of the current Waves, a plurality of successively operating relays, each adapted to bring the means for effecting vWave modification linto action, means for selecting the' wave-modifying relays to be operated, thereby to occasion modification of selected Waves,

means for timing the operationv of the se; lected 'wave-modifying relays to cause" the y 1 wave modification of each Waveto be modiiied to last throughout, -and be limited to,- the period of formation of" such Wave, 'and electro-magnetic responsive apparatus at the receiving station.

` '9-. A system of, transmitting yintelligence including a'- transmission line extending',

lfrom a transmitting station to ya receivingstation, a series of relays operating insuccessionA and each serving to cause the iin- '12o I means for effecting modification the ciirrent waves, a plurality of successively oper-- pression of a currentwave upon the line,

ilo

ating relays, each .adapted to bring'the means forfeiecting wave modification into action', means for selectin the Wave-modifying relays to-be operate thereby toocca- K- sion modiicationjof selected waves,'n ieansj for 'timin the operation l of the selectedwave-modifying relays to 'cause .the v'vave modification of each wave to be modifiedto,

-, line,..meansjA forl effecting'V individual-v Wave magnetic res'pnsive apparatiisat'the receiyl'ast'throughout, and vbe limited to, the 4period. of 'formationo such' Wave, andelectroing stat-ion. io.' A system including ia, transmission line extending yfrom a ltransmitting statipn ,to a receiving y jstationya series 'of relays'operatingi cession fand' jointly serving to cause the im- 1 'pression o f valternatin current Lupoi'i they ieation and restricted "td operate A modi -iwithi'n the period of -formation 'of-fthe wave undergoing 1i'iodiiic ation,` and velectroinag- 15 y cession-'and jointly serving tocause the, im-

`pression ofalterna'ting current upon the line, means for'eifecting' modiication'oftlie 'curre ntwaves, means for selecting waves to .be .modified and-timingfthe operation of tl'ie';

aforesaid means to occur Within, and'be lini y .ited itc, the p eiodof 'formation of-the 4wave y undergoing niodificatiomg and .electro-mag'y neticresponsive apparatus at -the receiving station.

v '12. A system .of transmitting intelligence i including a .t'Iansiiiissi'on line extending' 135' pression on alternatingfcurrent' upon the frein-a transmitting. statio'rr'to areceiving sta'tionA a series` of lrelays operating 4in'suecession and jointly-serving' to cause the iin` line, means for Aeileeting individi'ial Wave A modification', `ineansf'ior. vcausing 'the' Waremodifying' ni'eaiisffton operate substantially .a throughout the period' occupied fin.' the ior-- mation' of `the yvave'to betinodiiiedfand servingto restrict the' .action thejinodifying,

' meanst'o such period, `and 'electro-magnetic f stati-ontj a -series .59

responsive apparatus atv the -receiving stia- 13".` A system'of-trlansrnitting intelligence;

" f including- .ai transmission l `liiie-l extending V.from a transmitting station' Vtof a receiving of relays' operatinginsuccession and jointlyserving-to. causethe iin-Q pression off alternaftin f -curreiit iupon'fthe ine,- ineans for modifying --tlie .ciifrrentf Waves, means for selecting the-Waves 4to be modifie'd and causing Vthe modification 'of' each` Wave under modification to occur subst-a'ntially .'tliionghoiit, andbe limitedjto, 'tlie y f ceivingi'station," ,j 1

period of .formation of Vsuch' Wave; and, elec-` S1v ai i eramet 2' .y .ii. its Siem rof ,triiismii-iingint including "iff/:transmission, ',lineV fe'x'tendiii'g' l from a transmitting station:- vtloa" receiving station, means l for impressing alternating;

ecurrentth r'eupoii,V relay4 mechanism for eff ecting individual wave'fmodi'cation and of'utransniitting intelligence I Yline,' relay mechanism o'r 'receiving station. 1 i

ISLA system ofi-transmitting intelligence including a transmission' from a' transmitting-station to a 'receiving 'stationl' means: for impressin neat-ion ofthe current` Waves,

"at the receiving station.'

restricted to `operatewithin the period of l formation of the wave undergoing modifica-` fti'en' and electro-magnetic responsive he receiving station *mi* l lystem of transmitting.'intelligence4 l including fa V'trans'mission line ex't'nding cessionand jointly serving to `'cause the inipi'ession of. alternatin current' uponthe eifec'ting in dividf' V.from"a transm'itting `station to a receiving ;stat1on,a'.seriesof relaysoperatingin suc ual wavelmodification and restricted toop- A ei'ate. Within theperiod of formation' of tlie Wave undergoing modification, and elettro#` 'magnetic responsiveapparatus a t-,.th'e receiv-` ing station. "f y i 16, vA systeml of transmitting inteliigence inliidii-igv a transmission line Veiitending 'ioma transmitting station to a receiving station, means for impressing- 'alternating current tiiereupon; 'means' for eifecting modificationv of the current waves, a -plurality of successively operating relays, .each adapted ,tbrin'g `the means for effecting wave' modification into action, means forselecting the Wavemodifyingrelays` to be operated, thereby. to occasion 'modification of Waves, and electro-magnetic respon- `siveapparatus'at the receiving station. i 11A-A system of' transmitting-"intelligence 'including av 'transmission line extending fronifa' transmitting station to( a, receiving station, a `series of ,relays operating in suc g cessionandjointly serving to'ca'use the im'- pression ofalternating-v current upon 'the line,. ineans current 'waves5 a plurality ofsuccessively operatingfrelays, each adapted -to bring tl'ie means' for 'effecting-wave modification into action, means for selectingfthe. Wave-modi" tying relays to Vbe operated/thereby to oecasion' modificationofselected Waves; and elec#l Atro'-magne'ticA responsive apparatusV *atv the. i

alterna-tin g ecti-ng modi.-

eiirrent thereupon, means rfor e 'successively operating relays, eacltadapted f 'icatioi 2 -intof action,V means for select.ingtli`e Vwa'vefiiiodifyingre-,lays to be operated, 'there-` 'by -to occasion lmodific'ation of selected ,Waves, means for-effecting modification 'of' the a plurality of to bringt-lie means for effecting Wavemodifor timing the operatioii'of f the selectedl *wave-modifying.' relays to canse i "..the 'wave-.modification oi each ivaveito'jbe modified to'jlast' throughoutf,j andbe. limited i 'to'gtlie' period of y formation of siicliy Wave,

and "electro-magnetic responsive apparatus 19.-` A system of transmi angine" including a., 't.ransmissionline'extendin a -transmittingfstation toa reelvingstatioin:

line :extending a series of rel `.ys 'operating in succession' and jointly serving,r to' cause the impression of alternating current upon the line, means for cfiiecting modication of `the current Waves,

a plurality of successively operating relays,`

each adapted to bring the means for effecting Wave n'iodlfication. into action, means for selecting the Wave-modifying relays to bel operated, thereby to occasionmodication of selected Waves, means for timing the' operation ofthe selected Wave-modifying'relays to cause the Wave modification of' each Wave to be modified to last throughout, and be limited to, 'the period of formation of such Wave, and electro-magnetic responsive a p-pa ratus at' the -receiving station..

20. A. system of transmitting' intelligence including a transmission line extending from a transmitting station to a receiving station., a plurality of relays operating in succession and each serving to cause the impression of' a Wave of current upon the line, t-he relays operating together to cause the wave forms impressed upon the line to alternate, Whereby the current impressed upon the line con- 'stitutes an alternating current., and elect-romagnetic responsive apparatus at the receiving station. l

21. A system of transmitting intelligence including a transmission line extending from a. transmitting stationV to a. receiving station, a plurality of relays operating in succession and each serving to cause the impression of' a. wave of current upon the line, the relays operating together to cause the wave forms impressed upon the line to alternate, W-hereby the current impressed upon the line con stit-utes'an alternating current, means 'for effecting individual Wave modification and restricted lto operate Within the period of formation of the wave undergoing modification, and electro-magnetic responsive apparatus at the receiving station.

22. A system 4of 'transmitting intelligence including a, transmission'line extending from a transmittin station to a receiving station, a plurality of relays operating in succession and each serving to cause the impression of a Wave of current upon the line, the 'relays operating together tocause the wave forms impressed upon the line to alternate, Whereby the current impressed upon the line constitutes an alternating current, means for effecting Wave 'modification, and elect-ro'- magnetic responsive apparatus at the receiving station.

23. .A system of* transmitting intelligence including a transmission line extending from a transmittin station to a receiving station. a plurality o relays operating in succession and each serving to. cause 'the-impression of a wave of currentl upon the line, operating together to cause the wave forms impressed upon the line to alternate, Whereby the current impressed upon the'line con-` stitutes an alternating current, means for effect-ing wave modification, means for selecting Waves to be modified, and electro-magnetic responsivel apparatus at the receiving station.

24. A system of transmitting' intelligence including a transmission line extending from a transmitting station to a receiving station', a plurality of relays operating in succession and each serving to cause the impression of a. wave of current upon vthe line, the relays operating togetherto cause the Wave forms impressed upon the line to alternate, whereby the current impressed uponthe line constitutes an alternating current, means for effecting individual Wave modification and restricted to operate within the period of formation of the Wave undergoing'modiiication, means for selecting Waves to be modified, an electro-magnetic responsive apparatus at -t-he receiving station.

25. A syst-em of transmitting intelligence including a 'transmission line extending from a transmitting,station Vto a receiving stat-ion, means for impressing wave form cu'f'fent upon the line at thel transmitting station, a plurality of receiving devices at the receiving station, a number of electromagnetic devices at the receiving stat-ionop! erable in succession, each receiving device being'controllable by aselected plurality of electro-magnetic devices, a lline relay unresponsive to the normal current Waves and responsive to current of modified Wave form and operable upon wave modification, and a 100 plurality of additional relays, one corresponding. to each electro-magnetic device and operable by the line current-Whether the Waves are modified or unmodified, each of the latterrelays being responsive to a par- 105 ticular Wave of the series of waves of line current, and therefore being operable in succession, each of said additional relays being adapted lto coperate `in turn with the store-- said line relay when said'line relay' is op-'ll0 erat'ed to effect the operation of the electro magnetic device associated therewith.

, 26.` A system of transmitting intelligence including a transmission line extending from a transmitting station to a receiving U5 station, means for impressing' wave form current upon theline t the transmitting the`v relays station, a plurality -of receiving. devicesat the'receiving station, a number of electromagnetic devices at the receiving station op- 12g, erableinsuccession, each receivingdevice'V being controllable by aselected plurality of electro-magnetic devices, a line relay unie-, sponsive to --the normal current Wavesl and and' operable upon waveanodication, a plu'-4 rality of. additional relays, one corresponding' to each electro-magnetic device. and op erable by the line currentwhether thewaves responsive to current of modified wave form are modified or unmodified, yca .cliol thelat- 13o;

ter relays being responsive to a particular wave ofthe series of waves of line current,

circuits after netic .responsive and therefore being operable insuccessioin each ofsaid additional relaysfbeing adapted to cooperate in turn with the aforesaid' line relay when said line relay is operated to effect the operation ofthe electro-magnetic device lassociated therewith, locking circuits established ,by the operated electro-magnetic devices through the'zelectro-inagnets therei of,l and means for. o eningthe closed locking the se ection of an electro-mag- 'device1 27. A system of transmitting-intelligence including a transmission line extending from a transmitting stationlto a receiving.

station, means or'cmpressing wave forni current upon the line at` the transmittingl station, plurality of receivingdevices at i and therefore' being o the receiving station;

`.and opeiab 'rality of a .ing 'to ,each electra-magnetic device andv f v tic. coperatejin turni with t -fect 'the 'operation A e device-associated -tii'eievvithand to restore anilniber of electroma neticdevicesatthe receiving station opeiale in succession',jjeach receiving device being controllable by a selected=p`lurality of l i electro-magnetic devices, a line relayunre- `sponsive tothenorinal vcurrent waves and respcnsive'tocurrent of Amodified wave forni e upon; wave modificati on,l va plu-s` ditional relays, one corresponderable bythe line current whether the waves are modified or unmodified, .each ofthe .latw L ter relaysbeingresponsive to a particular waves of. line current,-

wave of the series 'o perable in succession, being adapted aforesaid4 line relay when said line relay is' operated to efo fthe'electro-magnetic each of said additional relays v e the successively 'operating relays, locking Vcircuits etab'lishedby the operated electromagnetic-devices throu h vthe electro-magnets thereiig. vand. means for opening the closed-'locking circni't's'afterlthe selection of 4an electro-magnetic responsive device.

28. A system `of transmitting intelligence including a 'transmission 'line extending froin-, a transmitting station to a receiving station, 4means foriinpressing Wave form current upn-thelineat the transmitting station, -a pluralityof receiving devices at the 'receiving station, a number of electromagnetic devices at the receiving station operable ,in succession, l

beingcontrollable bya s lected plurality of electrodna'gneticjdevices, a line relay unresponsive "to the normal current Waves and res onsive Vto current of mod iedwave form an operable upon' .'wave modification, and a plurality of' additional relays, one corre to eachv el cetro-magnetic device and operable 'by the Vline current Whether the Y waves areA modified or unmodified, each of the latter relays being responsive to a par ticiilitr v vave of the series of lvvaves of. line each receiving device current,

cession, eachof said additional relays being said'l'ine relaywlien said line relay is opinagnetic device associated therewith, the additional relays havinguarmature switches successively waves, said armature switches being in serial switch being normally separated from thel next-.armature switch and being connected said electro-magnetic devices being normally in circuit relation'with-'the armaturel switch ofthe 'relayassociated therewith, said line relay serving to complete the ener izi'ng` circuit for a selectedelectroimagnetic evire. L 29. A 'system of 'transmitting intelligence including a transmission Aline extending from a transmitting 'station to a receiving station, means for impressing Wave form current upon the' line at the transmitting station, apluralityof, receiving devices at the receiving-v station,'a.nuinber of electromagnetic devices at the receiving station op- 'erable in successioni, each receiving device relays, "the additional relays having armature switches' successively actuated, by 'suc cessive current Waves,l said switches being in' serial relation with eacl other, each armature switch being normally separated yfrom the `next armature s vvitch and being connectedther'ewith upon actuaitith the armature switch of the relay .ase sociatedltherewith, said. line relay serving to complete the energizing circuit for a .sei` lected electromagnetic device, locking circuits established by the operated electromagnetic devices through the electro-mag" closed locking circuits after the selection of an electroeinagnetic responsive device.

30. A system of transmitting intelligence erated toetlect the operation of the electro-` actuated by successive current.

relation ,with each' other, each arrrniture therewith upon actuation, the magnets of` being controllable by a selected plurality of electro-magnetic devicesya line relay unreline current, and thereforebeing o erableand to restore' the successively operatingand therefore being operable iinsucv i adapted to cooperate in turn Withtlie aforey l0f the, letter relays being 4responsive vto.l a

armature tion,'the magnets of said`electro-'ina11neti'c i devices being vnormally in circuit relation nets thereof, and means for opening the including a transmissionv line extending .130`

from a transmitting station to a receiving station, means for impressing wave form current upon the line at the transmitting station, :i plurality of receiving devices at the receiving station, a number of elet-troinagnetic devices at the receiving station operable in succession, each receiving device being controllable by a selected plurality of electro-magnetic devices, a line relay unresponsive to the normal current'waves and responsive to current of modified wave forni and operable upon Wave modification, a plurality of additional relays, one corresponding toeach electro-magnetic device and. operable by the line current whether the waves are modified or unmodified, each of the latter relays being responsive to a particular wave of the series of waves of line current, and thereforebeing Aoperable in succession, each of said additional relays being adapted to cooperate in turn with the aforesaid line relay when said line relay is operated to eifect the operation of the electro-magnetic device ,as sociated therewith, the additional :relays having armatureswitches successvel actuated by successive current waves, said armature switches being in serial relation with each other, each arma-ture switch being normally separated from the' next armature switch and being connected therewith upon actuation, the-magnets of said electro-niagnetic dev-icesbeing normally in circuit re lation with the armature switch ofthe relay associated therewith, -saidlinerelay serving to complete the energizing circuit for a selected electro-magnetic'device, the'armal ture switch of each. relay associated with a selected electro7'magnetic device servin to open the energizing circuit as a result o the operation of said armature, meansfor holding the armature of each selected electromagnetic device to the position to which it has been moved, and-means for releasing.

said armature.

31. A systemV of transmitting intelligencee including a transmission line ,extending from a transmitting station to a receiving.

station, means for impressing wave forni current upon t-lie line. at the transmitting station, a plurality 'of receiving devices at the receiving station, a number of electromagnetic devices at the receiving station l operable in succession, each receiving device being controllable by a'selected plurality of electro-magnetic devices, a line relay unresonsive' tov .the 'normal current waves "an responsive to' current of-modified wave form and fo'perable upon wave modification, a. plurality -of'additional .rey lays, one corresponding to each .electro-mag netic device` and operable by the line'ciirrent Whether the vwaves are modified or unmodified, each of the latter-relays being responsive'to a` particular wave of the seter relays'being res onsive-to a particular -wave ofthe series'o Waves of line current,'

ries of waves of line current, and therefore being operable in succession, each of said additional relaysl being adapted to copeiate in turn with the aforesaid line relaywhen said linei'elay is .operated to effect the operation of the electro-inagnetic device associatcd therewith and to restore the successively operati-ng relays, the additional-relays having armature switches successively actuated by successive current waves', said 75 armature switches being in serial relation with each other, each armature switch being normally separated from the next armature switch and being' connected therewith upon actuation, the magnets of said electro-magnetic devices being normally in l circuit relation with the armature switch -of the relay associated therewith, said line A relayser\ 'ing to complete the energizing circuit for a selected electro-magnetic derice, locking circuits established by the operated electro-magnetic devices'through the electrdmagnets thereof, means for opening the closedlocking circuits after t-hei'selec-` tion of an electro-magnetic Iresponsive device, the armature switch of each relay associated with a selected electro-magnetic de'- vice serving to open the energizing' circuit as anresult of the operation. of said armature,` means for holding 'the armature of 95 each selected electro-magnetic device tothe position to which itfhas been'moved, and meansfor releasing said armature.

32. A system of transmitting'intelligence inclu-ding a transmission line extending from ico --a transmitting station to a receiving station, means `for -impressing alternating current i upon the linel at the transmitting station, a p urality of'receiving devices at the receivf ing station, a number 'ofl electro-magnetic 10.5 devices at'the receiving station operable in succession, each rec'eivn device being conitrollable b a selected p urality of electro- -T magnetic evices', a line relay unresponsive tothe normal current waves and responsive 10 to .current-'0f modi-fied waveform and operable'upon wave modification, and a plui'alityv of additional relays, one correspond-l ing to each 'electro-magnetic device and 0p' erable by the line current whether the waves- 11,5'-

are-modified or unmodified, each of the'latand therefore being operable in succession,

cachof said additionalrrelays bein adapted Y lto coperate in turn with the aforesaid lii i means for impressing alternating current;

upon the line atthetransmitting station,-a p urality ofl receiving devices at the receiv` 1,39

' tlie selecting ing station, a number of electromagnetic devices `at tlie receiving station operable in succession, each receiving device being controllable by a selected plurality ot' electromagnetic devices, a `line relay unresponsivet the noi'riial current waves vand responsive tocurrent of modified waveform and operable upon Wave modiiication, a pluralityioil additional relays, one corresponding toV each electro-magnetic device and operable by the line current Whether the waves are modified or` unmodilicd, each ot the latterI relays being responsive to a particular wave of the series of Waves of line current, and therefore being operable in succession, each of said additional relays being adapted to 'coperate in turn With the aforesaic'lfline relay when said line relay is operatedto yeffect the op` eration ofthe electro-magnetic device asso ciated therewith, lockingf circuits estab-p lisliedby the ,operated elecfro-magi'ietic devices through the electrofrnagnets thereof, and `means for opening tide-closed locking .circuits 'after the selection of an electro-magnetic responsive device. l v

34. A system 'ot transmitting intelligence including a transmission lineextending from aftransmitting station Vto a receiving station,

means. for impressing Wave-form current individual upon the line, means for effecting responsive wave rmodifica-tion,v one roup o 'devices'cooperatively, re atedwith the line,` 'a second group of responsived'evices,means for bringing the second sety of responsive devices into operative association with the line, said means being responsive to a` modi- .tied current wave, I'select-ing' mechanism attlie receivingstation for selecting responsive devices fromamong the groups of responsive (devices, and selecting means at the trans-l mitting station for effecting the operation of mechanism at the receiving station. v

` A. system of transmitting intelligence including a transmission line extending from with theline, said .apparatus being responv sive` to modified .current Waves, 'selecting mechanism' at the'receivingvv station' for se lecting responsive devices-"trom among Athe groups of responsive devices, and'selecting means at the transmitting 'station for eiect;

ving the operation of the selecting mechanism atthe receiving station and `for modifying selected Waves of line current.

A system of transmitting intelligence including la transmission line extending from a transmitting station to a receiving station, means for impressing alternating current upon the line., inea-ns for effect-ing individual wave modificati-on, onel group `of responsive devices cooperatively related with the line, a second group of responsive devices, means for bringing the second set ot responsive devices into 'operative associ-ation with the line, said means being responsive to ,a modified currentwa-ve, selecting mechanism at the receiving station 'for selecting responsive devices from among the groups of responsive devices, 'and selecting means at the transmitting station for effecting the oper-ation of the selecting mechanism at the receiving station. 37, A systenrof transmitting intelligence including a transmissionline extending from a transmitting station to a receiving station, means .Ifor impressing alternating current upon the line, means 't'or eitecting individual Wave modification, one group of' responsive devices coi'il'ieratively related with tli'e line, a second group e rtsponsive devices-a third group o l iupmive devices, apparatus for bringing lie second and third groups of responsive devices into operative association with the line, said apparatus being responsive to Y n'iotlified current naves, selecting mechanism at the receivingstation for selecting responsive devices from among the groups of responsivedevices, and selecting means at the transmitting station for effecting the operation ofthe selecting,mechanism lat the-receiving station and for modifying.

selected Waves-of line current.

38. A system of transmitting intelligence including a transmission line extending from a transmitting station to a receiving sta-tion, means for impressing Wave form current upon the line, means'for eii'ecting individual wave modification, one group of responsive devices cooperatively` related with 4the line, a second group of responsive devices, means j for bringing the second set of responsive de- `-vices into operative association 'with 'the line,

saidmeans being responsive to a modified current ivaveselectingmechanismv at4 the receiving station for selecting'. responsive de# vices fromamong the groups of responsive devices and responding to current of modified Wave formation, andselecting means at the transmitting station for effecting the operation of the selecting mechanism attlie re-v ceiving'station. f i

i 89., system of transmitting intelligence including a transmission line extending from a. transmitting station toy'areceiving station` means -for impressing fviive form current upon the line, means for effecting' individual ivave moditication, onev group of responsive devices cooperatively related V-ivith the line. a y.

second group of responsive devices, a. third group of responsive devices, apparatus for bringing the second and third groups of re sponsive devices into `operative associative with the line1 said apparat-us being responsive to modified current Waves, selecting mechanism at the receiving station for se- `upon the line, means for effecting individual wave modification, one group of responsive devices cooperatively related with the line, a second group of responsive devices, means for bringing the second set of responsive devices into o]'ierativc association with the line, said means being responsive to a modified current- \\'a\'e, selecting mechanism at the receiving station for selecting responsive devices from among the groups of responsive devices and responding to current of Inodi.

fied ware formation, and selecting means at the transmitting station' for effect-ing the opcral ion ot' the selecting mechanism at the receiving station. l

11. A system of transmit-ting intelligence including a transn'iission line extending from a transmitting station to a receiving station,

imams for impressing alternating current upon the n e, means for effecting individual' warrmw ation, one group of responsive den iccs rn- Iperatively related with the line, a second group of responsive devices, a. third group el responsive devices, apparatus for bring ..5 the. fond and third groups of respons'. devices into operative association avith the line. said apparatus being responsive to modified current waves, selecting mechanism at the receiving station for selecting responsive devices from among the groups of responsive devices and responding to current of modified Wave formatlon, and selecting means at the transmitting station for effet-Ling the operation of the selecting mechanism at the receiving station and for modifying selected wa ves of line current.

42. A system of transmitting intelligence including a transmission line extending from a transmitting station to a receiving station, a series of relays operating in succession and each serving to cause the impression of a current Wave upon the line and together the impression of Waves in fixed order, means for effecting modification of normal wave formation, and electro-magnetic responsive apparatus at the receiving station.

43. A system of transmitting intelligence including a transmission line extending from a transmitting station to a receiving station, means for impressing wave form current upon the line at the transmitting stat-ion, a plurality of receiving devices at the receiving station, a number of electro-magnetic de vices at the receiving station operable in suc cession, each receiving device being controllable by a selected plurality of electro-magnetic devices, 'a line relay atthe receiving station unresponsive to normal Wave form current and responsive to modified Wave form current, means for successively bringing said line relayint-o association 'with the electro-magnetic devices and serving each time it is operated 4to cause actuationjof the electro-magnetic device with which it is associated, and means at the transmitting sta-- tion for effecting modification of selected Waves.

In witness whereof, We hereunto subscribe our names this 11th day of June A. D., 1909.

GEORGE CY CUMMINGS. JOHN A. KICK. liVitndesses:

G. L.- Canoe, L. G. STROH.

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