US990183A

US990183A - Relay.

Info

Publication number: US990183A
Application number: US46335808A
Authority: US
Inventors: Charles G Ashley
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-11-19
Filing date: 1908-11-19
Publication date: 1911-04-18
Anticipated expiration: 1928-04-18

Description

o. G. ASHLEY.

RELAY.

APPLIUATIOH FILED Nov. 1e. 190s. 990,188. Patented Apr.18,1911.

' 2 SHEETS-Bmpr 1.

C. G. ASHLEY.

RELAY.

LPPLIUATION FILED 11011.19, 19

' Patented Apr. 18, 1911.

SHE T EET 2.

M\m.\ QN m UNITED STATI-1s .PATENT carica.

cuantas G. ASHLEY, or carence, ILLINoIs anni.

Patented Apr. 18, 1911.`

This application filed November 19,

1908. Serial No. 463,358.

T o all 'whom it may concern.'-

Be it known that I, CHARLES G. ASHLEY, a citizen of the United States of America, and a resident of Chicago,'county of Cook, and State "of Illinois, have invented a new anduseful Improvement in Relays, of which the following 1s a specication.

My inventlon relates to a method of and apparatus for propagating electrical waves.`

The device of my invention may be elnployed in space communication commonly known .as Wireless transmission and intele hony as commercially practiced.

y invention is serviceable in increasing the amplitude of electrical waves, when it is physically associated with the initial trans; -mitting station, crwhere the invention is practiced at a point between stations.

' The device of my invention may be said to constitute a relay, the initiall -produced electrical waves being amplified y means of the invention, whether the" device of the invention is located at the transmitting sta- I t tion or at some point intermediate between stations.

In racticing my invention, I employ two circuits themselves out of inductive relation. f g

Where the apparatus is to be used purelyr as a transmitting relay device, or a one-way service is to be obtained, current impressed upon one of these circuits is,"by means of the instrumentality hereinafter to 'be set forth, impressed upon the other circuit so as to produce in the latter circuit wave forms corresponding to the wave forms in the first circuit 'but with increasedY amplitude.l

Where the device is to be used as a relay in a long distance telephone line such as are now commonly in use, either of the aforesaid circuits may, through the said agency here- 66 ing from' either of two connected-station abl su divided in'toa'number of co inafter to be specified, have current initially impressed upon it to be reproduced .in the companion circuit with wave formsp'orrespending to the Wave forms-in the -ir'npress-V ing circuit, but of greater 'ani litude.' A

have produced a successful) repeate'rll that may be used to Vamplify the currents emanata Each of the aforesaid circuits es windin and each of the circuit, the coils being wound in directions, to produce alternate polarity, the adjacent' coils in each circuit being oppositely wound. These coils are so physically disposed with respect to each other that they willI not effeet inductive relation between the two circuits, a supplemental agency being required to effect telephonie or transmission union between the circuits, and 'it will thus be clear that the'two circuits are not in direct inducv tive relatiom A moving inductor common to all of the coils of both circuits is placed .in close range of said coils, so that on the occasion of the magnetic fields at the coils, fieldsl of eddy currents are set up in the inductor. If, for example, telephonie current is set up in one of the circuits, eddy currents resultin the inductor corresponding to said 'telephonie currents, by reason of the coils in the circuit'in which the tele honic currents are initially s'et u The edd)y currents thus iset up `orf=1nduce in the inductor underlie the coils in the circuit into which the telephonic current is to be relayed, and the current is induced from the inductor'into these moving inductor, which eddy currents-underlie the windings or coils in the circuit companion to the transmitting circuit u on which'thewaveform current 1s im resse at ater amplitude, the inductor, w en movals4 ma. constituting the a ency that causes-the eddy currentsin'the in uctor to act as inducngcurrents with respect to that circuit which' is to receive theiamplifed wave .form currents. As the coils o f the two circuits are interleaved or alternated, inA long ldistance telephony, either link in the telephone circuit thus united by the inductor -and the coils 'may' constitute the transmitting cir- 1 f ed sy*- mea-eze v tion. Fig. 2 is a vertical sectional view therethe faces of the x form of a disk are normally noeddy currents in the inductor, these only being occasioned when a telephone circuit is subject to telephonie current.

In another embodiment of the invention' the core of eachv coil may be permanently magnetized, either by an external battery or adheringly, these cores then producing eddy currents in the inductor which are modified bythe wave form current received by the device,

This application is a continuation of my a plication filed January 10, '1906, Serial o. 295,486, which was on January 21, 1907, passed for issue and became forfeited for non-payment of the linal fee.

I will explain my invention more fully by reference to the accompanying drawings, showing the preferred embodiment thereof, in which. 'f p Figure 1 is. aside elevationof a device constructed in accordance with the invenof. i Fig. 3 is a view in elevation with several of the parts broken away to reveal certain internal Acharacteristics of theapparatus. Fi 4. illustrates the device of my invention ocated at a transmittin a portion only of the coils being s own for the sake of illustration. Fig. 5 shows a telephone' line with the` device of my invenpion included at an intermediate point in the Like parts are indicated by similar charcters of reference throughout the different gures.

Referring rst more :particularly to Figs. 1,2 and '53, the rotor or inductor-lis composed !of suitable'metal, copper beingpreferred. This -rtor or inductor presents to Aeach of the of metal .which is at a'-uniform distance from poles,so that therewill be no iuctuation o -.thee ddy currents in the inductor-.due to the structure and arrangement of the inductor, and is desirably'f'mfthe one-fourth 4inches 1n' diameter, though Ido not wish tobe' to the roportions illustrated. The inductor is rigidly mounted upon a shaft 2, to which shaft is secured a pulley 3. that drives the shaft. The shaft finds bearings in t-he non-magnetic caps 4, desirabl formed ofbrass', collars 5 being provide uponthe shaft 2 to-conine the inductor 1 to a uniform plane of rotation. The brass caps 4 are recessed on their interiors at their to receive rings 6 of 'suitable'magnetie material, as verysft iron, these rings being secured to the caps screws 7. These rings 6.are provided insetting polar rejections 8-9 that are desirablyntegrally formed the rin The inductor is interposed between the es 8 belonging to one ring Gand the po es 9.

station,

poles atlallftimesa uniform mass,

practice, about three and' 4 b wat belonging tothe companion ring 6. The outer peripheral portions of the rings 6 are grooved on their inner faces vto receive a yoke ring 10, also desirably composed of very soft iron. The poles 8 direct-lyiface -t-he poles 9, each ole 8 and its companion pole 9 being co-axlal; the inductor 1 is thus enveloped by a source of magnetizablc systems, each comprising a pole 8, the'pole 9, companion to the pole 8, the rings '6, and the ring '10,

theelements

6,10 being coinmon to all of the magnetic systems, while each pair of elements 8 9 is individual to the magnetic system. The polar portions 8-9 receive a single section of the magnetizing winding, this section constitutingf'a coil 11, that is subdivided into two partsother about the pole piece 9, though I do not Wish to be limited to the particular dis` position of thiscoil. The faces of the polar portions 8 9 opposed to the disk 1,- are of unlike polarity when current is passing through the coil surrounding'or associated with-a set of polar portions 8 9. Referring now more particularly to Fig. 5, the relative arrangement of the coils 11 will be explained. A telephone line unites two substations, A-B, that may be associated with the line in any suitable way well understood b those skilled in the-art, thc illustration c osen beingsimply taken to make the operation of the invention clearly understood. Said stations A-.B may be equipped with telephonie apparatus of any well known or suitable construction and arrangement. Assuming telephonic apparatus to be at said stations AB, the telehonic transmitter 12 at each station may he included in circuit with a source of energizin I of an in uction coil, the' secondary 15 of "which lcoil is included directly in the line and in circuit with a telephone receiver 16. 'The telephone line includes two circuits 17.-'18 that are not directly inductivel associated at the relay but which depen for their telephonie relation upon the moving inductor. The circuit 17 includes one set of coils lland the circuit 18 includes another set of coils 11', the coils of one circuit being linterposed between the coils -of the other circuit, each coil of one circuit being followed immediately by the coil of the other circuit, whereby these coils are alternated. The conti nous coils 11 in the same circuit are woun in op osite directions, whereby the interposedl colls of the companion circuit vare subject to equal and opposing'. in-

ducedpressures, wherebl .these latter coils have no current induce in them, so that,

' 17-18 are not in direct inductive relation, th'eeils of one circuit having current induced in them by reason of current flowing current 13 and the primary 14 as I haveV hitherto stated, the two circuitsone placed. around the pole piece 8 and the through the coils of the other circuit by Way of the inductor 1, in' Which eddy currents are .genera-ted, that constitute the inducing currents that cause the occurrence of wave form currents in the circuit companion to the circuit that receives the initial Wave form currents. Thus, the coils 11 that are in the initiating circuit have differential effect upon the coils that are in the companion circuit, whereby there is no induction from one circuit directly to the other, the element'l constituting the vehicle for causing the-'currents in one circuit to occasion currents in the other circuit, this result being only e'fl'ected when said vehicle 1 is in operation. It will thus be seen that I have provided in each of the circuits 17H18 a winding including a plurality of coils, the coils of the different circuits being so inter related that the tendency for induction be` tween a coil of one circuit and an adjacent coil of the other circuit is neutralized by the opposing effect of an adjacent coil of the first circuit upon said coil of the second circuit, the latter coil being interposed between the former two. It will also be observed that thc coils connected with the initiating circuit coperate with a 'moving inductor toset up in the inductor eddy currents, and 'that these eddy currents are in inductive relation to the coils of the circuit into which phone circuit in any preferred way. It is,

not thought necessary to illustrate the loca.-

tions o f the edd currents in the disk l, as

such location be manifest to one skilled4 in the art.

It is obvious.4 that the geographical location of the relay with "respectto the stations 'equipment.

I cally a. substation equipment including,.for

at the ends of the circuit does not modify the law of o eration of the relay. This g coil of the same. circuitshould preferably l be the same, in order to prevent the direct is illustrate in Fig. 4, Where the relay located at the same place with Inl Fig. '4 I have illustrated diagrammatiexample, atelephone transmitter 12 in local circult With-abattery V13 and the primary 14 of an induction coil. A circuitfor the relay corresponding to either of the circuits 17- 18, sa circuit 417, includes a number of coils 11, W fle the interposedlcoilof the companion circuit 23 connected with the termi- -na1s,24, that are adapted for connection wi-th,A

the terminals 25 that' complete the circuit 23.

-' The .terminals 25 mayzi-nciudeanymsuiabq 'form of propagating instrumentalit as the winding 26 of 'an induction source o Winding 26 may constitute thc primary of, an induction coil, the secondary 27 of which is connected in any suitable form of circuit for the pro agation of telephone currents.

I have il ustrated a WirelessV apparatus in association with the coil 27, but, obviously, my invention is not limited to this association. In the Wireless apparatus illustrated, I have shown the Well-known aerial conductor 28 and associate partsthat arc. well understood by those skilled in the art. and need not be further described.

In Fig. 4 I have illustrated only a fraction of the coils 11. It is understood that 'these coils are preferably arranged in a comcreased amplitude, the number of coils l1 in the circuit 23 might be reduced to one, and the number of coils 1l 'in the'circuit 17 might be reduced to two, one on each side of the former coil, though, as stated, I prefer the arrangements illustrated in Figs. 1 to 3, inclusive.

In Fi 4 I include a battery or oth'er direct current 29 which causes a permanent magnetization of the cores surrounded bythe coils 11. Wave form current caused by the transmitter 12 is superimposed upon the current furnished by the source 29 so as to modify the flux of the cores of said coils to produce the action that has hitherto been described. l

I have illustrated the coilsll of each sct as bein connected in series to produce an accumu ative effect, but I do not wish to be limited to this precise way of connecting Vthe coils. I prefer, even .in the form shown in Fig. 4, to make 'the resistance, the wire of the coils 11', and the number of turns ot said wire 'the same, but this condition can be varied according to engineering practice as dcsired. The number of turns of wire in each fthe coils 11 are maintained stationar but I do not Wish 'to be limited to this ciaracteristic because all that is desired is relative movement between said coils and inductor.

While the `pole ieces 8 9 belongin to each coil 11 a're ustrated-as being united by a yoke 'ring o f magnetic material common to all of the pole pieces, I do not wish to be the inductor,lwhich eddy currents are caused limited to this arrangement.

' Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

inductor for and movable with respect to.

.said windings, one winding in coperation .other winding.

with the inductor eifecting eddy currents in the inductor, which eddy currents are caused to be in primary inductive relation with the 2. An instrument for increasing the ainplitude of wave form current, including two windings, for connection in diierent circuits, and an inductor movable'with respect to said windings, each of said windings being divided into a plurality of coils, the

l coils of one winding being alternated with l respect to theA coils-of the other winding, the v,coils of one winding acting oppositely to each other upon the adjacentcoils of the companion winding, one winding in co eration with the inductor eiiecting eddy currents in the inductor, which edd currents are caused to be in primary in uctive relation with the other winding.

3. An instrument for increasing the amy plitude of wave-.form current, including two windings for connection in different cir` cuits, and an inductor-.movable with respect to said windings, one of said windings including a number of coils, said coils acting oppositely with res ect to each other upon the'remalning win ing, one winding in -cooperationwith the inductor effectin eddy currents sin' the inductor, which ed currents are caused to be in primary in uctive relation with the other-winding.

V4f.v An instrument for increasing -the amplitude of wave form current, includingl two .windings directly out of inductiveLrelation for connection in different circuits, an in- .'.ductor for andmovable with-respect to said windings, one winding in coperation with the inductor eifecting eddy currents in the inductor, which eddy currents-are caused to be in primary inductive relation with the other winding, and magnetizable core por tionsfor said coils. n

5 An instrument for increasing the amplitude. of wave form current, including two windings for connection indifferent circults, an inductor movable with respect to said `windings, each of said windings being 4'divided vinto a plurality of coils, vthe coils offene winding. being alternated with respect to the coilsof theother winding, fthe coils '-ofone winding acting oppositely to each other upon t l1e adjac ent .coils of the companio'n winding, one'winding in coperation with the inductor effecting eddy currents -rentsin the inductor, which e to be in primary inductive relation vwith the other winding, and magnetizabl'e core p0rtions for said coils.

. 6. An instrument for increasing the arnplitude of wave form current, including two windings for connection in diferent circuits an inductor movable 'with' respect to sai windings, one of said windings including a number of coils, said coils acting oppositely with respect to each other upon the remaining winding, vone winding in coperation with theinductor effecting eddy cury currents are caused to be in primary inductive relation with the' other winding,and' magnetizable core portions for said lcoils. .v

7. An instrument for increasing the ainplitude of wave form current, including two windings directly out ofinductive relation for connection in di'erent circuits;l aninductor for and movable vwith respect to said `windings, one winding in coperation with the inductor effecting eddy currents the inductor, which eddy currents are caused to be in primary inductive relation with the other windin and magnetizable core portions for sai coils, each coil having two such magnetizable core portions, between which the inductor is disposed,-

8. An instrument for lncreaslng theam- .plitude of wave form current, includingtwo windings for connection indifferent circuits, an inductor movable with respect to sani windings, each of. said windings being d1- yv ided into a lurality of c ils, the coils of one winding eing alternated with respect to the coils of the other winding, the coils V'of one winding acting op sitely to each other .upon the adjacent co s ofthe companion winding, one winding in coperation with the inductor eecting eddy currents in the be in primary inductive relation with` the other windin andmagnetizable core `portions for` .s ai coils, each coil having two such magnetizable core portions, between which theainductor is disposed. *9. An instrument for luci-'easing theamplitude of wave form current, including two windingsl l:for connection in different circuits, an inductor movable with 'respect tosaid windings, one'of said windin including a number of'coils, said coils acting oppositely with respect t0 each other upon the remaining windin one winding in coperation with thc-in uctor effecting eddy currents in the inductor, which eddy currents are caused 'to be in primary inductive relation with the other windin and magnetizab'le coreportions for sai coils, Veach coil having two such magnetizable core portions, between Vwhich theinductor isdisposed.

' 10. A4 instrument for increasing the amplitude of wave form current, including two inductor, whicheddy currentsare caused to4 ilo ser),

windings, one winding in cooperation with the inductor effecting eddy currents in the inductor, which eddy currents are caused to he in primary inductive relation with4 the other `windin and niagnetizable core portions for sai coils, each coil having two such magnetizable core portions, between which the inductor is disposed, the said two core portions for each coil b'eing directly .united by magnetic material. l 11. An instrument for increasing the amplitude of wave form current, including two windings, for connection in different circuits,Y

an inductor movable with respect to said windings, each of said windings being divided into a plurality of coils, the coils of one winding being alternated with respect to the coils of the other winding, the coils of one winding acting oppositely to each other upon the adjacent coils of the companion winding, one winding in coperation with the inductor eecting eddy currents in the inductor, which eddy currents are caused to be in primary inductive relation with the other Winding, and'magnetizable core portions for said coils, each coil having two suchl `magnetizable core portions, between which:4 the inductor is disposed, the saidtwo coreg? portions -for each coil being directly united= by magnetic material. i

12. VAn instrument for increasing the am plitude of wave form current, including two windings for connection in different cir-u cuits, an-finductor, movablewith res ect. to .said windings, one of said windings including a number of coils, said'coils acting oppo- .sitely with respect to eachother upon the remaining' winding, one windinglin eddy eration with the inductor effectin curi-entsin the inductor, which ed rents are caused to 'be in primary in uctive relation with the other windin and magnetiza-ble coreV portions for sai coils, each coil having two such magnetizable core portions,l between which the 'inductor' is disposed-,- the said two core portions for each coil being directly united by magnetic material. A

13.'.An instrument for increasing the amplitude'of wave form current, including two.

windings directly out of inductive relation for connection in different circuits', and an y ,inductor for and movable with respect to' one winding coperatio'n said windin with the in -uctor effecting eddy currentsin the-inductor, which eddy currents are caused to be in primary inductive relation with the otherwinding, said inductor presentin to' each .of the poles at all times anni orin inass of metal which is at a uniform dis.

tance from the Afaces ofthe poles, so that there will be no fluctuation eddy currents in the inductor, due tothe structure and arrangement of the inductor.

14. An instrument for increasingA the amplitude of wave form current, including two windings for connection in different cirto said windings, eachof said windings being divided into a plurality of coils, the coils of one winding' bein alternated with respect to the coils of t e other winding, the coils ofone winding act-ing oppositely to each panion winding, one winding in cooperation with the inductor effecting' eddy currents in the inductor, which eddy currentsare caused to be inv primary .inductive relation with the 'other winding, said inductor presenting to each of the oles at all times'a uniform mass of metall) which is at a uniform dista'nce from ythe faces of the' poles, so that there will be no fluctuation of the eddy currents in the inductor, due to the structure and arrangement of the inductor.

15. An instrument forincreasing the aniplitiide of wave form current, including two windings for connection in di'erent cir' cuits, and4 an inductor movablewith respect to said windings-including a number of coils, `said coils acting oppositely with respect to leach other upon the remaining winding, one iiiding in cooperation with the inductor ffeliecting eddy currents in the inductor, which- 'eddy currents are caused. to: be in primary inductive relation.A with the other winding, said inductor presenting to each of the poles is at a uniform distance romthe faces of' 'the poles, so. that there will, be no fluctua- -tioii of the eddy currents .in the inductor, due to the structure: and. arrangement of the 16.4 instrument for increasing the amplitude ofwave' form current, including two 'windings directly` out of inductive relation, for connection di'erent circuits, an 1nductor for 'and movable with respectto said windi .one winding in cooperation 'in' the inductor,- which eddy currents are caused to be in primary inductive relation 'withthe other winding, and niagnetizable core portions for said coils, said inductor presenting to each of the poles atall times auniformmass of metal which is at a uniso that there willlbe no fluctuation ofthe 'structure and; arrangement of the inductor.

17. An instrument-fr increasing the ami plitude of" wave `form currentin'cludmg two windings forv connection indifferent cirsaid windings, each of said windings -bein divided into 'a plurality of coils, the coils o other upon the adjacent coils of'A thecomf form distance romi-the faces of the poles,

eddy currents -in the inductor, Adueto the cuits, an indiictormovable with respect to -one winding being; alternated with. rpe0 cuits, and an inductor movable with-respect y I atall times'a uniform mass-of metal which v with the 'in uctor e'ecting eddy currents i of one winding acting oppo'si to the coils of the other windin the coils tey to each other upon theadja-cent coils of the companion winding, one winding in coperation with the inductor effecting eddy currents in the inductor, which eddy currents arecaused tobein primary inductive relationwith ,the other-winding, .and magnetizable core portions for said coils, said inductor pre senting to each of the poles at all'tii'nes a uniform mass of metal .whichis at a uniform distance from the faces of the poles, so that there .Willbe no uctuation of the eddy currents in the inductor, due to the 'structure and arrangement of the inductor.

18. An instrument for increasing' the amplitude of wave form current, including two windings, lfor connection in dili'erent" circuits, an inductor movable with respect to said windings, one of said windings includ ing a number of coils, said coils acting op.- positively` with respect' to each other upon the remainin ivindin one winding in coperf ation wit "j the in uctoi' eifectin eddy currents inthe inductor, which edy currents are caused to be in primary inductive relation with the other winding, and' magnetizable core -portions for said coils, said inductor presentingto each of the poles at all times a uniform-mass ofsmetal whichis at a uni-- form distance from the faces of the poles,

so that there will be no fluctuation of the Teddy currents in the inductor, 'diie' to Ithe structure and arrangement of the inductor.

19.` An instrument for increasing the aniplitude of wave form current, including two windings, directly out of inductive relation, for .connection in different circuits, an viiiductor. yfor and4v movable with respect to said 4o the inductor effecting eddy currents in the windings, one winding in coperation with inductor, which eddy 4currents are caused to befin primary inductive relation with the other winding, and magnetizable core portions for said coils, each coil having two such magnetizable core portions between` which the inductor is disposed, said inductor presenting to'eachof the poles at all times a uniform mass of metal' which is at al uniform distance from the faces of the oles, s0*

that there will be no fluctuation of t e eddy,

currents the inductor, due to the structure and arrangement of the inductor.

20'. An' instrument for increasing the amplitude of wave form current, including twof windings,'for connection in different circuits an ii i`ductor f'-movable-with` respect to windings, each ofvsaid windings beingsdivided into-a luralit of coils, the co' `of one' windingv eing alternated with res ect to the coils of the other winding, the coi slof one windingacting oppositely to each other upon thevadjacentcoils of; the'companion'- winding, one-winding in cooperation with the inductor effecting eddy currents in thei an inductor movable with inductor, which eddy currents are caused to be in primary inductive relation with the other windin i, and magnetizable core -portions for said coils, each coil having two such magnetizable core portions, between 'which theinductor is disposed, said inductor presenting to each of the poles at all times a uniform mass of metal which is at a uniformdistance from-the faces of the that there will be no fluctuation of t p oles, so e eddycurrents inthe inductor, due to the structure and arran ement ofthe inductor. f

21. instrument for increasing the amplitude of wave windings, for connection in different circuitsi windings, number of coils, said coils with respect to each other upon the remain; ing windin with the ingu the inductor,

one of said windings including `a which eddy currents are caused one winding in coperatioa c'tor eifecting eddy currents in f form current, including two 80 an inductor movable with respect tosai acting oppositely I to be in primary inductive relation with the other winding, and 'magnetizablelcore por- 4 tions for said' coils, each, co'l havingtwo such magnetizable core po ions between which the 'inductor is disposed, said inductor 'presenting to'eaeh of the polesV at all times a uniform mass of metal which is at a. uniform distance from the facesof the' poles, so that there will be no fluctuation of the eddy cur- 4rents in 'the inductor, due to the structure and arrangement of the inductor. 22. An instrument lfor for connection in diictor for and movable with respect windings, one winding in cooperation with different circuits, an in- 4the inductor eiecting eddy currents in the inductor', which eddy currents are caused to creasing the a`m vplitude of wave form current, including two windings, directly out of'inductive relation,

to said be 'iii primary inductive relation with the other windin and such magnetizable 4core portions, between which the inductor is sposed, the said two core ortions for each coil being directly united) by magnetic 'material, said inductor presenting'to each of the, les at all tines a uniformmass of metal which is at a. uniform distance from the there will be no fluctuation of the eddy curmagnetizable core por-l 'tions for sail coils, each coil having two faces of the poles, s o that rents inthe inductor, due to the structureA l panonwnding one winding in coperation different circuits,` respect to said with the inductor effecting eddy currents in the inductor, which eddy currents are caused to be in primary inductive relation with the other windin land magnetizable core portions for said coils, each coil having two such magnetizable core' portions, between' which the inductor is disposed, the said two remainin unite windings, for connection4 in different cir' cuits, an inductor movable with respect to said windings, one of said windings Includ-i ing a number of coils, said: coils acting oppositely with respect to each other upon the winding, one winding in coperation with the inductor etfeetin eddy currents in the inductor, which ed y currents are caused to be in primary inductive rela- `tion withthe other winding, and magnetizable core portions for said coils, each coil having two such magnetizable core portions, between which the inductor is disposed, the

said two core portions foreach coil bein U directly united by magnetic` material, said i linductor presenting to each of the 4poles at all times a uniform mass of metal which is at a uniform distance from the faces of the poles, so that there will be no fiuctuation of the eddycurrents in the inductor, due to the 'structure and arrangement of the inductor.

25. An instrument for increasing the am-v plitude of wave form current, including two windings, for connection 1n different circuits, and an inductor for and movable with respect to said windings, one winding in cooperation with the inductor efiectin eddy currents in the inductor, ,which ed y currents are caused to be in .pnimary inductive relation with the other 26. An instrument forincreasing the aml 1 p litude ofpwave form current, including two windings, -for connection in different circuits, an inductor for and movable with respect to said windings, one winding in cooperationgwith the inductor efectineddy rents. are caused to be in primary in ctive relation with the other winding, and magnet izable core port-ions for .said coils.

` plis-121e wxndlngs, for connection in different circults, an' inductor for' and movable'yith re- V operation "withA the in 27, An instrument for increasing the amof wave form current, including two spect to said windings one winding in coductor etectino' eddy currents 1n the inductor, which jedd:

6111- rents are caused to be primary in u ctivel tions, between which relation with the other winding, and magnetizable core portions for said, coils, each c'ol having two such magnetizable core portions between which the inductor is disposed.

28. An instrument for increasing the am# plitude of wave form current, including two windings, `for connection in diiferentfcir@ cuits, an inductor for and movable with respect to sald wlndlngs, one windingY 1n c0- -operation with the inductor efectin Veddy currents'in the inductor, whiched cur'- rents are caused to be in rimary in uctiverelation with the other windin andxmagnetizable core portions for sai coils, each coil having two such magnetizable core portions, betweenwhich the inductor is dissop posed, the said two core portions for each@ .rents are caused to be in 'primary in uctive .relation with 4the otherwinding, said 1nductor presenting to each of the poles at all times a uniform mass of metal which is at a uniform distance from the faces of the...

poles, so 'that there will bei no fluctuation.

of the eddy currents in the inductor due to the structure and arrangement of the inductor.-

30. An instrument for increasing the amplitude of wave form current, including two windings, for connection in diierent circuits, an inductor for and movable with respect to said windings ,one winding in co operation with the inductor etfectin eddy currents in the inductor, which ed y currents are caused to be 4in primary inductive relation with the other windin and magnetizable core portions for sai coilssald inductor present-ing to' each of the poles at all times a uniform mass of metal which is at a uniform distance from the faces of the poles, so that there will'be no iluctuationof the eddy currentsln the inductor, due to the structure and arrangement of the 1nductn ,y .-31: instrument for increasing the amplitude of wave form current, including. two

windings, fori." connection' in diffferent circuits, an inductor for and movable Awithrespect to said windingsone winding in cooperation with' the inductor eli'ectin eddy currents in the inductor, which ed currents are caused to be in primary in' uctive relation'with the' other windin and magnetizuble core portions 4for sai coils, each coil having two such -mgnetlzable core pore inductor-1s disposed, said .inductor presenting to each of the poles at' all times a uniform mass of 4metal which is at a uniform distance from the faces of the cles, so that there will be no iuctuation of the eddy currents in the inductor, due tothe structure and arrangement o f the inductor.

.32. An instrument for increasing the amplitude of wave form current, including two windings, for connection in dil'erent circuits, an inductor for and movable with re# spect to said windings, one winding in cooperation with the inductor eect'n eddy currents in the inductor, which edgy .currents are caused to be in primary inductivev relation with the other winding, and magnetizable core portions for said coils, each coil having two such magnetizable co're portions, between which the inductor fis disposed, the said two core portions for each. coil being directly united by magnetic ma` terial, said inductor presenting to each of i the poles at all times a. uniform massv of metal which is at anniform distance from the faces of the poles, so that there. will-be no iuctuation of the eddy currents in the inductor, due to -tlie structure and arrangement of the inductor. A

33. An instrument for increasing the am# plitude of wave form current, including .two windings, andv an inductorfor and movable with respectto said windin "s, one-winding in coperationf with the-in uctor effecting eddycurrents in the inductor,- which Yeddy currents are caused to 'be in primary ind-uctive relation with the other winding.

"34. An instrument forl increasing' the arnplitude of wave form current, including. two

windings, and an inductor movablewith respect to s aid windings, each o f said windings beingdivided into a pluralityof coils, the coils of one winding being' alternated with respect to the coilsl of the' other `wind.v ing, the coils=of one winding acting oppositely to` each other .upon the adjacent coils of the companionwinding, one winding" in coperation with the inductor effecting eddy currents in .the inductor, which edd cnrrents are caused-to be in primary in uctive relation with the other winding.-

35. An' instrument for increasing the am.

. plitude of wave form current, including two windings, and an inductor movable with respect to said windin one of Said windings includi'ng' a num r of coils,. said coils acting oppositely with respect to each other upon the'remainin winding, one windin in coperation with t e inductor eecting edy currents in the inductor, which'.edd currents are caused to be in primary in uctive relation with the other winding.

36. An instrument for increasing the am plitude or wa-ve form current, including two windings, an inductor for and movable with respect to said windings, one'winding in co?" ing divided into a' plurality of coils,

of one winding acting opposite operation with the "in vcurrents 'in the inductor,

windings, respect to said windings,

rents are caused to be relation with the other windlllfld 313%;-

coils, eac

plitude of waveform current, including two movable with respect ',Jeach of? said windingsbethe .coils operation with the inductor eiectin eddy currents in the inductor, which edt? currents are caused to be in rimary uctive relation to the other winding, and magnetizable core portions for said coils. 37. An instrument'for increasing the amplitude of wave form' current, including two windings, an inductor movable with respect tosaid windings, each of said windings bethe coils of one windin being alternated with respect to the coils o ,the .other winding,the coils y to each other upon. the adjacent` coils of the conipanion winding, one winding in coperation' with the inductoreecting eddy currents in the inductor, which eddy currents are causedto be in primary inductive other winding, and magnetizable core portionsfor said coils.

" 38. An instrument for increasing the amplitude of wave form current, including two windings, an inductor movable with respect to said windings, one o f said 'windings m-. cluding a number of coils, said-coils acting oppositely with'respect-to each othgF-.uponl one-winding 'm cofl' the remaining wmdi uctor eiectin eddyj rentsare caused .to be in-primary inductive relation with the .other windin and mag netizable core portions for sai coils.

39'- An'instrumentforincreasing the arnplitude. of wave form current, including two aninductor for and mgvable with Y operation with the inductor eiecting eddy currents in the inductor; whiched y in primary inductive t netizable core portions for sai c'oil having two such magnetizable core porf relation with the A which.l ed y cur'- vico one winding in-'cotions, between which the inductor is diss..

posed. f f v f An instrument for .increasing the amwindings, an inductor to said windings l ing divided into a plurality of coils, of one windin being alternated with respect' to the coils o the otherv the coils of one winding acting opposite other upon the adjacent coils of the coinpanion winding, one winding in coperatioii with the inductor eiecting veddy currents 1n the inductor, which eddy currents are caused to be in primary inductive relation with the other windin and magnetizable core portions for sai coils, each coil having two such magnetizable lcore portions, between which'the inductor is disposed.

41, An instrument for increasing amplitude of wave form current including two windings, an inductor movable with respect to said windings, one ofsaid windingsin-v currents in the inductor, which ed 3 unite cluding a number of coils, said coils acting oppositely with res ct to each o therupon the remaining wint ing, one winding 1n cooperation with the inductor effectmgeddy y currents .are caused to be in primary in uetive relation with the other winding, and magnetizablc core portions for said coils, each coil having two'such magnetizable core portions, between which the inductor is disposed. 1

42. An instrument for increasing the amplitude of wave form current, including two windings, an inductor for and movable with respect to said windings,`one winding in cooperation with the inductor effecting eddy currents in the inductor, which eddy currents are caused to be in primaryinductivo relation with thc other winding, and magnetizable core portions for said coils, each coil having two such magnetizable core portions, between which the inductor is disposed, the said4 two core portions for each .coil being directly united by magnetic inatcrial.

43, .-'tii instrument for increasing the aniplitnde of wave form current, including twov windings, an indnctor tnovable with respect to said windings, each of said windings bcing divided into a Vplurality of coils, the coils of one winding being alternated with respect to the coils of the other winding, the coils of one winding acting oppositcly to cach other upon the adjacent coils of tlic companion winding, one winding in coperation with the inductor effectin eddy currents in the inductor, which ed y currents are caused to bc-in primary inductive'relation with the other winding, and magnetizable core portions for said coils, each coil having two such magnetizable core portions, between which the inductor is disposed, the said two core portions for each coil being directly united by magnetic material.,

44. An instrumentfor increasing the ainplitude of wave form current, including two windings, an inductor movable with respect to said windings, one of the said windings including a number of coils, said coils acting oppositely with respect.4 to each other upon the remaining winding, one winding in coperation with the inductor effecting eddy ciii'- irnts in the induetor, which eddy currents are caused to be in primary inductive relation 5 with thc other winding, and magnetizable core portions for said coils, each coil having two such magnetizable core portions, between which the indnctor is disposed, the said two core (portions for each coil being directly by magnetic material.

45. An instrument for increasing the am; plitude of Wave form current. including two windingsand an inductor for and movable with respect to said windings, one winding Veration with the inductor effecting ed y eddy currents in the inductor, which eddy currents are caused to be in primary inductive relation with the other winding, said inductor presenting to each of the poles af 'all times a uniform mass of-metal which is at a uniform distance from the faces of the poles, s o that there will be no fluctuation of coils of one winding acting oppositely to each other upon the adjacent coilsof the companion winding, one winding in co currents in the indiictor, which ed cur* rents are caused to be in primary inductive relation with the other winding, said inductor presenting to each of the poles at all times a uniform mass of metal which is at a' uniform distance fiom the face of the poles, so that. there will be no fluctuation of the eddy currents in the inductor, due to the structure 'and arrangement of the induetor.

times a uniform mass of metal which is at a uniform distance from the faces of the poles, so that there will be no fiuctuation of the eddy currents in the inductor, due to the structure and arrangement of the induetor.

48. An instrument for increasing the amplitude of wave form current` including two windings, an induetor for and movablel with respect to said windings. one winding in cooperation with the inductor effecting eddy currents in t-he indnctor, which eddy currents are caused to be in primary inductive relation with the other winding. and magnetizable core portions for said coils, said inductor presenting to each of the poles at all times a uniform mass of metal which is at a uniform distance from the faces of the' poles, so that. there will be no fluctuation of thc eddy currents in the inductor, duc to the structure and arrangement of the induetor.

49. An instrument for increasing the amplitude of wave form current, including two windings, an inductor movable with respect in coperation with the inducto'r effecting l to said windings, each of said windings being divided into a plurality of coils, the coils of' one windin being alternated with respect to the coils of the other winding, the

coils of one winding acting oppositely tol ductor presenting to each of the poles at all times a uniform mass of metal which is at a uniform distance from the faces of the poles, so that there will be no fluctuation of the eddy current in the inductor, due to thc structure and arrangement of the inductor.

50. An instrument for increasing the amplitude of wave form current, including two windings, an inductor movable with respect to said windings, one of saidwindings including a number of coils, said coils actlng oppositely with respectto each other upon the rcmaining winding, one winding in cooperation with the inductor effecting eddy currents in the inductor, which eddy currents are caused 4 to be in primary inductive relation with the other winding, and magnetizable corc portions for said coils, said inductor presenting to each of the poles at all times a uniform mass of metal which is at a uniform distance from the faces of the poles, so that there will be no fluctuation of the eddy currents in the inductor, due to the structure and arrangementI of the inductor.

51. An instrument for increasing the amplitude of wave form current. including two windings, an inductor for and movable with respect to said windings, one winding in cooperation with the inductor'effecting eddy currents in the inductor, which eddy currents are caused to be in primary inductive relation with the other winding, and niagnetizable core portions for said coils, each coil having two such magnetzable core portions, between which the inductor is disposedpsaid inductor presenting to each of the poles at all times a uniform mass of metal which is at a. uniform distance from the faces of the poles, so that there will be no fluctuation of the eddy currents in the inductor, due to the structure and arrangement of the inductor.

52. An instrument for increasing the amplitude of wave form current, including two windings, an inductor movable with respect to said windings, each of said windings being divided into a plurality of coils, the coils of one winding being alternated with respect to the coils of the other winding, the coils of one winding acting oppositely to each other upon the adjacent coils of the companion windin one winding in coperation wtih the inductor effecting eddy currents in the inductor, which eddy currents -are caused to be in primary inductive relation with the other windin and magnetizablc core portions for sai coils, each coil ha ving two such magnetizablecore portions between which the inductor is disposed, said inductor presenting to each of the poles at all times a uniform mass of metal which is at a uniform distance from the faces of the poles, so that there will be no fluctuation of the ,eddy currents in the inductor, due to the structure and arrangement of the inductor.

58. An instrument for increasing the amplitude of wave form currentl including two windings, an inductor movable with respect to said windings, one of saidv windings including a number of coils, said coils acting oppositely with respect to each other upon the remaining winding, one winding in co,- operation with the inductor effecting eddy currents in the inductor, which edd currents are caused to be in primary in uctive relation with the other winding, and magnctizable core portions for said coils, each coil having two such magnetizable core portions` between which the inductor is disposed. said inductor presenting to each of the poles at all times a uniform mass of metal which is at a uniform distance from the-faces of the oles, so that there will be no fluctuation ofthe eddy currents in the inductor, due to the structure ment of the inductor.

54. An instrument for increasing the amplitude of wave form current, including two windings, an inductor for and movable with respect to Said windings, one winding in cooperation with the inductor effecting eddy currents in the inductor, which eddy currents are caused to be in primary inductive relation with the other winding, and mafnetizable core portions for said coils, cach coil having twosuch magnetizable core porand arrange- 'tions. between which the inductor is disposed. the said two core portions for each coil being directly united by magnetic niaterial, said inductor presenting to each of the poles at all times a uniform mass of metal which is at a uniform dist-ance from the faces of the poles, so that there will be no fluctuation of the eddy currents in the inductor, due to the structure and arrangement of the inductor.

An instrument for increasing the amplitude of wave form current`v including two windings, an inductor movable with respect to said windings, each of said windings being divided vinto a plurality of coils, the coils of one winding being alternated with respect to the coils of the other windin the coils of one winding acting oppositey to each other upon the adjacent coils of the companion winding, one winding in coperation with Vthe inductor effecting eddy currents in the inductor, .which eddy currents are caused to be in primary inductive rela`- -inductor presenting to each of the tion with the other wind/ing, and magnetizable core portions for said coils, each coil having two such mugnetizable core portions, between which the inductor is disposed, the said two core portions for each coil bein directly united by magnetic material, sai

oles at all times a uniform distance from t e faces of the cles, so that there will be no fluctuation ofthe eddy currents in the inductor, due to the structure and arrangement of the inductor.

56. An instrument for increasing the amplitude wave form current, including two windings, an induetor movable with respect to said'windings, one of said windings including a number of coils, said coils acting oppositely with res ect to each other upon the remaining win ing, one winding in cooperation with the inductor effectin eddy currents in the inductor, which ed y currents arc caused to be in primary inductive relation with the other winding, and magnetizable core portions for said coils, each coil having two such magnetizable core port'ions, between which the indnctor is disposed, the said two core port-ions for each coil being directly united by magnetic material, said inductor presenting to each of the oles at all times a uniform mass of metall3 which is at a uniform distance from the faces of the poles, so that there will he no fluctuation ofthe eddy currents in the inductor, due to the structure and arrangement of the inductor.

57. In an instrument for increasing the amplitude of wave form current, a set of coils adapted to carry the current to be arnplified; a conducting disk rotating near said coils, said coils and disk thus producing eddy currents in said disk in response to current values in said coils; and a second set of coils related to the eddy currents in the disk as the secondary winding'of an induction coil is related to the currents of the primary winding of the induction coil.

58. In an instrument for increasing the am litude of wave form current, a set of coi s adapted to carry the current to be amplified; a conductin disk rotatin near said coils, said coils and disk thus pro ucing eddy currents in said disk in response to current value in said coils; and a second set of coils related to the eddy-currents in the disk as the secondary coil of an induction coil is related to the 'currents of the primary coil of the induction coil, said first set of coils and said second set of coils being similar.

59. In an instrument for increasing the am litude of Wave form current, a set of coi s adapted to carry the current to be amplified; a conducting disk rotating near said coils, said coils and disk thus producing eddy currents 1n said disk 1n response to current value 1n said coils; and a second set of coils related to the eddy currents in the disk as the secondary coil of an induction coil is related to the currents of the primary coil of the induction coil, said first set o coils and said second set of coils being similar, and being arranged non-inductively each upon the other.

G0. In an instrument for increasing the amplitude of wave form current, a set ot' field coils; an armature, and a second set of coils positioned to have inductive relation to currents in said armature.

G1. In an instrument for increasing thc amplitude of Wave form current, means for producing corresponding currents of amplified value in a moving conductor; and means for transferring the energy of said currents electro-magnetically to a stationary conductor.

G2. In an instrument for increasing =thc amplitude of wave form current` field coils; an armature; and inductive coils related inductivc-ly to currents in said armature produced by currents in said field coils.

(33. In an instrument for increasing thc amplitude of waveform current, a set of field coils; an armature; and a second set of coils positioned to have inductiverelation to currents in said armature, said two sets of coils being mechanically similar and electrically interchangeable.

64. In an instrument for increasing the amplitude of Wave form current. means for producing corresponding currents of amplified value in a moving conductor; and means for transferring the energy of Said currents electro-magnetically to a stationary conductor, said two sets of coils being mechanically similar and electrically interchangeable.

65. In an instrument for increasing the am plitnde of wave form current, field coils; an armature; and inductive coils related inductively to currents in said armature produced by currents in said field coils, saidtwo sets of coils being mechanically similar and electrically interchangeable.

G6. In an instrument for increasing the amplitude of Wave form current, a set of coils adapted to carry the current to be, amplified; a conductor moving near said coils, said coils and conductor thus producing eddy currents in said conduct-or. 1n response to current values in said coils; and a second set of coils related to the eddy currents in the conductor as the secondary winding of an induction coil is related to the currents of the primary winding of the induction coil.

67. In an instrument for increasing the am litude of wave form current, a set of coi s adapted to carry the current to be amplified; a conductor moving near said coils,

set of coils related to tlie eddy currents iu the conductor as the secondary coil of an induction coil is related to the currents of the primary coil of the induction coil, said first set of`coils and said second set of coils being similar.

(38. In an instrumentl for increasing the amplitude of wave form current, a set of coils adapted to carry the current to be ainplified; a conductor moving near said coils, said coils and conductor thus producing eddy currents in said conductor in response to current value in said coils; and a second set of coils related to the eddy currents in the conductor as the secondary coil of an induction coil is related to the currents of the primary coil of the' induction coil, said first set of coils and said second set of coils beingr similar, and being arranged non-inductively each upon the other.

G9. In an electrodynamic relay, a uniform mass of meta-l maintainin relative motion with a field coil; and anot er coil in inductive relation to the current in the uniform mass of metal; said two coils electrically interchangeable and non-inductively associated in regard to each other.

70. In an electrodynamic relay, a mass of metal maintaining relative motion with a field coil;and another coil in inductive relation to the current in the mass of metal, said two coils electrically interchangeable and non-inductively associated in regard to each other.

71. In an electrodyiiainic relay, means for maintaining continuously eddy currents in a mass of metal by relative motion between such metal and a field coil; a second coil out of direct inductive relation with said field coil but in inductive relation with an eddy currentin said mass of metal.

72. In an electrodynamic relay, a field coil producing eddy currents in a uniform inductor maintaining relative motion with re gard to such field coil; and a second coil out of 'direct inductive relation with said field coil but in inductive relation with the eddy currents in the inductor.

73. In an electrodynamic relay, means for producing a plurality of eddy currents in an armature of uniform mass maintaining relative motion with regard to a plurality of field coils; an equal number of similar coils out of direct inductive relation with the first rfor establishing an electromagneticall ductive couple with an electrodynamically named coils but in direct inductive relation with tlie eddy currents in said armature.

74. In an electrodyna mic relay, means for A rent, means for maintaining eddy currents in:

a mass of metal by elative motion between suoli metal, and a plurality of field coils wound alternately clockwise and counterclockwise; a second set of similarly wound coils, each disposed in direct effective inductive relation with the eddy current in t-he aforesaid mass of metal.

77. In an electrodynamic device for increasing the amplitude of wave form current, means for establishing a series of eddy currents of alternate direction in a mass of metal maintaining relative motion with a plurality of field coils of alternate polarity; a second set of similarly wound and connected coils each disposed in effective inductivc relation with an eddy current in the 'aforesaid mass of metal.

78. In an electrodynamic device for increasing the amplitude -of wave form current, a. conductive mass, a field coil; and coils inducedcurrent in said conductive mass when said mass is maintainin relative motion with reference to said eld coil, said field coil not forming an electromagnetically inductive couple with the aforesaid coils.

Signed by me at Chicago, county of Cook and State of Illinois in the presence of two witnesses.

CHARLES G. ASHLEY. lVitnesses:

DAvm S. HULFIsH, HARRJET L. SMITH.

Corrections n Letter s Patent No. 990,183

It is hereby certified that in Letters Patent No. 990,183, grunted April 18, 1911,

l upon the application: of Charles` (l. Ashley, of Chicago, Illinois, for an improvement in ltelays, errors :tppen-r in the printed sperilicntion requiring correction as follows: Page 11, line S, after the word uniform, the words mms of metal wiz'c/t s ui a uniform should be inserted, und same page, line 14, after the word ampliresld with theseoorreetons therein that the saine may conform to the record ofy the case in the Patent Oce.

Signed and sealed this 6th day of June, A. D., 1911.

C. C. BILLINGS, Acting Commissioner QJ" Patents.

[SEAL] l tilde, the word Qfshould be inserted; and that the said Letters Patent should be.