US1515635A - Endtjctance coil fob radiocommunication - Google Patents

Description

' Nov. 18, 1924.

L. E. WACKERLE (IMM/WW Nov. 18, 1924.

L. E. WACKERLE INDUCTANCE COIL FOR RADICOMMUNICATION Filed April 2, 1923 2 Sheets-5heet 2 z Jmuemffo/L Lewis EB/Ezclerle Str-www Patented Nov. 18, 1924.

UNITED; ST-ATES LEWIS E. WACKEBLE, OF JACKSONVILLE` ILLINOIS.

NDUCTANCE COIL FOR RADIOCOBIMUNICATION.

Application finea April 2, 1923. serial No. 629,521.

To all whom it m1/ concem;

Be it 'known that I Lewis E. VVAcKnnLE, a` citizen 'of thelUn'ited States, residing at. Jacksonville, in the county of Morgan and State4 of lllinois,I have invented new and usefil' Improveinent's in Inductance Coils for. Radiocommunication, of which the following' is a specification.

invention relates to' the, art of transmiftingbelectrical ""pulses 'Without the use ofi'wiresfbetween t e. stations, the art being comtrinlyi ""Iqwnlaszradio communication.

Moriiparticularly the invention relates to aninductance. coil fo1;nse in `connection with r'atliofsi''nuQ in'gandother like arts, the coils being-a apt fforfservifc'e either alone or ln combination 'fi'ithlik'e coills in the construction.- of"V indiietances', 'variometers variocouplersi andot'hex: 'similar' devices.

One'ofthe chlieffobjetins to many of the existin'gffrms of coilfwherein the coil is at all offla compact arrangement is that the varnishior: ot-alier mediiln used to retain the wires' in their position. acts as a dielectric, andin consequeno`e.-'tlie coil not only acts as an inductanc'e, but asf'aninherent capacity 8,0 thaLittaQtsina nieasnre' as acondenser. T'hisjs veinflohjectlonhhle many. cases, and one. important'.i obJectS of the present invention is topnovi e en' improved Construction of coil which is'so wound that the use of a dielectric-to hold the Windings in position will' be rendered unnecessary. To the same end, another important object of the invention is to providean improved construction of coil wherein the successive Windings of the coil will be nearly free from all parallelism between successive Windings.

A third important object of the invention is the provision of an improved Construction of` coil so arranged that the coil is wound. in. a dish shape, one. side of. which is coneave-,. thereby producing. what may be tormed. a. field-i fous.

Alfounth. important of the inventionis toprovide an.impi:oved'.forni of coil wound. in dish. shape. whereina series of successivewindihgs areso arranged that no two. of.v the. Windings have; parallel' paths.

With the;ahove.and other objects in view as will be, alljparent` the invention Aconsistsin.general ofcertain noveldeof construction: and combinations of parts described illustrated accompangving. drawings. and specificellx- In the accompanying drawings likc characters of reference indicate like parts in the several views. and: I

Fig. 1 is a side elevation of the coil con.- structed in accordance with this invention.

Fig. 2 is a transverse section taken diametrically through such a coil.

Fig. 3 isa schematic view of the first. Winding.

Fig. 4' is a schematic view of the second Winding.

Fig. 5 is a schematic view of the third Winding.

Fig. 6-is a schematic view ofithe fotirt-h Winding. i

Fig. 7 is a schematic view of the fifth Winding. 1 i

Fig. 8 is aschem'atic view ofr the sixth Winding.

Fig. 9 is an enlarged detailed view showing certain of the radiatingarms and the first and second convoltions ofl the wir-ing.

Fig. 10 is a view similar to Fig. 9, lslic'w'- ing the third, fourth and fifth convolutions of the wiring. i

Fig. 11 is a general wiring diagram showing six complete convolutions in their relation to each other. -i

Fig 12 is a. detail view of one of the radiating arms.

Fig. 13 is a detail cross sectional view of a modifie'd form of the internal disk. showing one side thereof concave and the other side convex. Y.

In the Construction of this coil there is provided an internal disk or hublO'having peripheral slots 11 formed therein which receive the smaller and inner ends of spokes 12 which are formed from fiat strips of inaterial tapered from end to end, and set radially into the hub. These strips. are set so that their fiat sides are substantially parallel with the axis of the huh7 and thiisppr'esent their edges laterally withrespect to the. hub. Preferahly these strips'. inclined only on one side or' are dished so as. to present aconcave arrangementfif the edges of the. strip at one. sideof the'hnh, and either fiat. or generally convex. arrangement on tlieother side offtheihl'lb. v r- In the. Windings, of thefc' il a ,wire, 13f is taken and. secured to one of these Stripf, or, as they may be ca1led,; spokes, atj-the point. of its junction with the disk rflhub. The. wireis then led around the huh beinslfiid at One. edge af 01119 Shake end the llO opposite Ledge of the vnext succeeding spoke throughout soV that the 'first convolution, thus formed, is Woven back and forth from one side of the disk to 'the other at' single spoke intervals. It is preferred that the number of spokes being uneven, and with an uneven number ofspokes, the second convolution is carried on'around the spokes in the same manner as the first convolution, but owing to the fact that thevnumber of spokes is uneven, the second convolution of the wire Will cross the first convolution of the wire between-each pair of adjacent spokes. ,,Thesetwo steps in the Winding are clearly illustrated in Figures 3 and 4,. The third convolution of th'efiseries -is formed by'weaving the wire back and' forth in such a ,mannerA as to -leave two spokes on-Jone 'side of the wire and the next two spokeson thelfother side thereof. rIn other words, in the first two convolutions, the wire lies on Vopposite sides of; successive spokes lwhile in the third convolution'i'the wires lie on oppositewsides of pairs, of successive spokes. The fourth convolutionV is formed li'keflthe thirdhoony'olution, but owing to the-fact that the spokes are uneven in number, this fourthwconvolution iwill -be staggel'ed one spoke around the' coil,

The'pfifth convolution is forme d'like the third andffourth, but -is staggered onex more Vs`pokef'around thefcoilV so that the wires of thefifth convolution cross thelwiresl of the third Vconvolutionrat the po.int.where.-the respective convolutionfshifts :from one side to the other of the spokes., The sixth convolution .is similarnto the convolution, but staggered one spoke farther around, and by reason of lthis arrangement, Ithe wires of the sixth convolution cross the .wires of the fourth convolution where they shift from one side to the other of the spokes.

If more than six convolutions are made` as `commonly thecase, the' seventh convolution is wound like the first, the eighth like the second, and so on.. In other words, the series of six convolutions just described arerepeated indefinitely as many times as may be necessary to form the complete coil. 'IVith thislarrangement it will be seen that no two successive convolutions are'wound `m lthe same manner, and that m each convoluti'on the wire also contactswit-h the supvporting-Spokes atufthe thin edges of these spokes so that. even if aV ''dielectric.l such as Narnish, shellac, or the'y like is employed Ltoh'old these wires in position on these edges, 'the V adj acent wiresI are only (parallel for. such 'an extremely shortV distance as to benegligible. and consequently there is practically 'no production of aV capacity in the winding'of this coil.

It is to be noted that in some instances it is found desirablle to omit the first two of the series of 'convolutions As for inintensity at a point, which may be termed i the focusv of the coil, substantially on the axis of the coil and at the side therieof which is concave. i

It will also be obvious to those skilled in the art that these co-ils may be combined in various ways for` the construction of such devices as variometers, variocouplers and the like. i

`There has thus been provided at simplev and efficient device of the kind 'described' and for the purpose specified.

It is obvious that minor changes may be made in the form and Construction of the invention without departing from theimaterial spirit thereof. It is not, therefore desired to confine the invention to the`exac't form herein shown and described, but'it is dcsired to include all such as properly come within the scope claimed.

Having thus described 'the invention, What is claimcd as new is:

l. [i coil of the class described comprising a central disk constituting a hub, spokes radiating from the edge of said hub, and a Winding on said spokes consistingof a wire' wovcn around said spokes in a series of convolutions. the` first convolution of the series having the wire wonnd to lie on opposite sides of successive single spokcs,` ihc second convolution of the series being woven to' have thi` wire lie on opposite sides of successive spokes but being staggered onc spoke with relation to the first convolution, the third convolution beingr arranged with the wire on opposite sides of successive sets of spokes. the fourth convolution being similar to the third convolution hut staggered one spoke with respect thereto, the fifth convolution being similar to the fourth convolution but staggered one spoke with respect` thereto`r andv the sixth convolution being similar to the fifth convolution but staggered one spoke with respect thereto said series of convolutions being repeated in arrangement to complete the coil.'

2. A coil of the class described comprising a hub, a series of spokes radiated from said hub` and a Winding consisting of wire arranged in convolutions supported'on said spokes, each convolution beingr woven'backl and forth across the spokes` each successive convolution being arranged in staggered relation to the next antecedent convolution, said spokes having one edge inclined With respect to a plane passing perpendicularly through the axis of the hub, said inclined edges being arranged to form a shallow dish in one side of the coil.

3. In a coil of the class described, a hub, a series of spokes radiating from the hub, there being an odd number of spokes in the series, and a coil ivound on said spokes and consisting of a Wire Woven back and forth between the spokes, said wire being arranged to lie on one side of a pair of spokes and on the opposite side. of the next succeeding pair, each convolution being staggercd With respect to the next antecedent convolution, said spokes having one edge inclined with respect to a plane passing perpendicularly through the axis of the hub, said inclined edges being arranged to form a shallow dish in one side of the coil.

4. In a coil of the class described, a hub. a series of spokes radiating from the hub, there being` an odd number of spokes in the series, and a coil Wound on said spokes and consisting of a Wire Woven back and forth between the spokes, said Wire being arranged to lie on the one side of a pair of spokes and on the opposite side of the next succeeding pair, each convolution being staggered one spoke around the hub vcith respect to the next antecedent convolution, said spokes having one edge inclined With respect to a plane passing perpendicularly through the axis of the hub, said inclined edges being arranged to form a shallow dish in one side of the coil.

5. A coil of the class described comprising a central disk constituti'ng a hub, spokes radiating from the edge of said hub, and a Winding on said spokes consisting of a Wire Woven around said spokes in a series of convolutions, the first convolution of the series having the wire Wound to lie on opposite sides of successive single spokes, the second eonvolution of the series being Woven to have the Wire lie on opposite sides of successive spokes but being staggered one spoke With relation to the first oonvolution, the third convolution being arranged With the Wire on opposite sides of successive sets of spokes, the fourth convolution being similar to the third convoluti'on but staggered one spoke With respect, thereto, the fifth convolution being similar to the fourth convolution but staggered one spoke With respect thereto, the sixth convolution being similar to the fifth convolution but staggered one spoke With respect thereto, said series of convolutions being repeated in arrangement to complete the coil, said s-pokes having one edge inclined With respect to a plane passing perpendicularly through the axi's of the hub, said inclined edges being arranged to form a shallo-W dish in one side of the coil.

In testimony Whereof I affix m Signature.

LEVVIS E. fAG ERLE.

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