US2108852A - Television apparatus - Google Patents

Description

Feb. 22, 1938:

J. GETTIN GER TEQEVIS ION APPARATUS Filed April 27, 1934 S She'ets-Sheet l N VENTO R Jsqo? 6 29 ATTO RN EYS Feb. 22, 1938. J GETTlNGER 2,108,852

T ELEVIS ION APPARATUS Filed April 27, 1934 5 Sheets-Sheet 2 ATTO-RNEYS Feb. 22, 1938'. Y J. GETTINGER 2,108,852

TELEVISION APPARATUS Filed April 27, 1954 s Sheets-Sheet a INVENTOR ATTORNEYS Patentcileb. 1938 UNITED STATES PATENT OFFICE JosephGettinger,Chieago,Ill. snli amnsnruzr.isss.suum;rsz.m

4 (GIJITHZC) -1$0Illlll.

Thepresentinvention relates to a novel television receiver and motion picture projector adapted to receive and record high frequency electrical impulses representing the elements of an image originating at a television transmitter and converting said impulses into a similar image upon a color impregnated hygroscopic film at the receiver for immediate projection within a iralction or a second upon a screen. This application isa continuation in part of my application filed June 1 1932, Serial No. 617,549.

current sound and image record upon the same. film whereby the instantaneous and fully developed sound record is produced synchronously with the picture record.

Another object is to provide a novel means for moving and arresting the film alternately through a picture film projector together with means for extinguishing and relighting the projector lamp thereoi' thus obviating the use of shutters during the shifting of the film. These vmeans are electrically synchronized with and The principal object 'oi. this invention is to record such image impulses progressively on a continuously moving color'impregnated hygroscopic film for the instantaneous and fully developed production oi-a complete image thereon and simultaneously expose within a fraction of a second a previously recorded image portion oi said film intermittently in a motion picture projector.

Another object is to record'the efiect of the received impulses upon such color impregnated hygroscopic but basically transparent film by v means of a'- high ireque'ncytelectrical discharge ,through the film, the nature, of the film being impulses, said impulses representing and corre such asto react to these discharges in a definite manner and in accordance with the impulses received from a television transmitter.

Another object is toproduce insuch a. film, by means oi. a high frequency electrical discharge," an instantaneous and fully developed permanent record of the image oi the received sponding to the varying light intensities produced at the transmitter, the elements oi. whichconstitutethe'complete image or picture.

Still another object is to provide a novel scanning means whereby the received image impulses are converted into high frequency electrical discharges and are passed through such a specially prepared, but also conductive film to-form a series oi instantaneously and fully developed contiguous transverse lines upon such a continuously moving film, the number oi such lines being dependent upon the dimensions of the elec- 'trical discharge and particular arrangement: of

the scanning means. I

Another object .of importance. is to transfer controlled by mechanism associated with the continuously moving portion oi the film.

Still another object is to provide means for manually releasing the film driving mechanism. to elect the framing oi the picture film at the projector for its proper focusing on the screen.

The invention is more fully disclosed by way of example in the following description and in the accompanying drawings in which- Figure .1 is a longitudinal section through the television receiver and projector:

Fig. 2 is a'iragmentary view showing an alternate position or the film movingjmechanism and scanning mechanism;

- Fig. 3 isa transverse view through the television receiver on line 8-4 01 Fig. 1;

Fig. 4 is a' detail cross section through the scanning'drumonlineHofFigJ; t

Fig. 5 is a schematic view showing the method oi scanning the film; and

Fig. 6 is a wiring diagram showing the sound and television receivers and associated scanning members I and "I, said drum being driven by an 1 the high or ultra-high irequency impulses from the receiving instrument proper, to the scanning means in such amanner as to-have no distortion or the impulses occurring. This is accomplished by the use-of high frequency coils concentrically arranged with-in the scanning means.

Still another-object of the invention is to produce instantaneously and M13! developed a conelectric. motor I! having a driving shaft ll. Gears i4, ".16 and i1 connect the motor shaft llwiththescanningdrumll. 1 1

Electrodes II and II areseparately mounted 4 on supports 2| and insulated therefrom. These electrodes consist of thin fiatplates and lie ina horisontal plane passing through the axis of the drum i i. A color impregnated hygroscopic, but also conductive film 2| is adapted to pass bee tween the surface of the drum II and the edge o'i-the electrodes l8 and I9. This film is basically of a transparent character and isconductive to. electrical high frequency discharges passing begenerated cellulose. This film is impregnated as stated with a hygroscopic medium, which, owing to its hygroscopic properties; induces therein atmospheric moisture, which by its combination with carbon renders such combination conductive to an electric discharge therethrough of a predetermined voltage and current. Furthermore, it will be observed that inasmuch as many hygroscopic mediums have within their atomic structures hydrogen-or oxygen ions or both or hydroxyl ions, it will be readily understood why such a combination becomes conductive to-an electric current, and it. will also be noted that hygroscopic mediums containing such ions are very stable in retaining atmospheric moisture. It will also be readily understood that the proportionate incorporation of such hygroscopic mediums will be the responsible factor for the conductivity of the film. Itwill be obvious from the foregoing that it is possible to adjust the resistance value of the filmto the electric current.

Incorporated with a hygroscopic medium are certain dye orcoloringsubstances, normally opaque to light.

The electrical-discharge through said medium -results in a thermal and oxidizing action upon said coloring matter and having a varied bleaching eifect thereon which alters the chemical and physical structure of both the hygroscopic medium and the dye or coloring matter in-accord ance with varying intensity ofv the discharge,-

which is determined by the intensity of light impinging on the photo-electric tube, and, as stated 'above, the degree of bleaching is dependent upon the varying intensity of the electrical discharge and the consequent thermal and oxidizing effect. The hygroscopic'medium and dye or coloring substance are such as to provide a high I resistance, which permits the use of higher voltage and low current fiow in orderthat each electric discharge therethrough shall only effect a minute portion of the film at any one instant.

The value of this resistance is such as to develop a varying quantity of thermal action, which is proportionate to the varying intensity of the electric discharge which effects, a chemical change in the hygroscopic medium whereby-acids of-high order are produced in varying amounts instantaneously. The reaction of the acidsfupon the dye or coloring substances together with the effect of the ozone produced by the electric discharge and its intense oxidizing property effects both the hygroscopic medium and dye or coloring substance causing. 'a permanent changetherein. The temperature 'and heat developed bythe electric discharge is of instant duration and of highfrequency and said'heat-is wholly absorbed in the chemical reaction. Thus the material of the film itself and its inherent'transparency remains unchanged. This bleaching action has the eflect of producing continuous variationin the transparency of said coloring matter.

sion of the motor shaft I8.

- Successive movements of said electrical discharge across said film causes a blending of the contiguous paths traced across said film whereby the socalled line effect ordinarily present in light scanning is hereby eliminated.

The film 2| is continuously driven by its, p ssage between a pair of geared rolls 22 and 28. The roll 28 is secured to and driven by an exten- This shaft is journalled in bearings 24 and 25 which are extensions of the supports 1 and 8 respectively.

The roll 22 is rotatably mountedin yoke 26 pivoted to a bracket 21 secured to a lamp housing 28. A spring 28 is interposed between ,the

bracket 21 and the yoke 28 which normally acts to grip. the film between the rolls 22 and 23 whereby sufficient frictional resistance is had to propel the film 2| by said rolls. Manually operable means 88 threaded through an extension 8| of the lamp housing 28 is adapted to release the tension roll 28 whereby the film may be freely moved between the rolls and whereby said film The housing 28 is provided with a reduced apertured portion 82 having a face 88. A similar confronting face 84 forms part of a housing 85, the side walls 86 of which are divergent, said walls being extended forwardly and secured to the front wall 4 of the casing An optical system indicated as at ,81 is secured within the housings 28 and whereby the film imageis projected and properly focused for visualization upon a translucent screen 88 ,secured to the frontwall '4 of the casing l.

The film 2| passes between the faces 88 and 84 for intermittent movement such movement being effected by a pair of geared cylindrical cams 89 and 48. The cam- 88,is secured to a shaft 4| having bearing in a bracket 42 secured to the housing 28. Another gear 48 is secured to the shaft 4| and meshes with the gear [4 on the motor'shaft l8. These gears are of equal diameter .and hence, the shafts 48 and 4| rotate at the same speed. High portions 45 of said cams are adapted to engage opposite sides of the film 2|.

'may be adjusted to adequately frame the film in the projector.

The cam 48 is rotatable in' a yoke 46 and is pivoted on the housing 85 as at 41. A spring 48 normally acts to grip the film 2| between the earns 88 and 48 whereby sufiicient frictional resistance is had to propel the film.

Manually operable means 48 threaded through a nut 58 secured to the top wall 3 provides means for releasing the tensioned cam 48 whereby the film may be freely moved between the cams.

The yokes 26 and 48 are connected by a link 28a in a manner whereby the roll 22 and cam 88 can be released simultaneously from contact with the film 2| by manipulation of either of the manually operable means 88 or 48.

The half circumference of the high portion of each of the cams 88 and 48 is equal to'the circumference of the roll 28. The half circumference of each cam is also equal to the length of a unit picture, hence at each alternate half revolution of the cams 88 and 48 the film is propelled upwardly to bring a newunit picture within the framing of the lens system 8|.- Conversely the low portions of the cams 88 and 48 at each alter-w natehalf revolution are out of contact with the film and hence the film remains at rest. .In this position the film is held against movement by spring pressed plungers 5| which frictionally hold the film againstistops 82. These plungers are actuated by solenoids 88 one terminal of each the film by the cams 39 and 40 as clearly indicated in Fig. 2. The foregoing devices constitute means for intermittently moving the film through the projector.

It will be observed that while a portion of the film 2i is held at rest as shown in Fig. 1, another portion of said film indicated at BI is being fed upwardly by the rolls 22 and 22, said portion of the film being moved laterally by a spring pressed member 82 to compensate for the lengthening out of the film between the lower plunger ii and the feed rolls 22 and 22 as shown in Fig. 2. The member 62 is of a length substantially equal to the width of the film 2i and itscontact therewith maintains said film against lateral distortion. The lengthening of the film is again taken up or shortened when the film is initially being fed upwardly by the cam rolls 2! and III as shown in Fig.- 2. Thus while the upper portion of the film is intermittently exposed in the .projector of the lower portion of the said film upon which the image'is beinminstantanedusly and fully developed is being continuously fed between the scanning drum II and the electrodes ia'and IS. A guide. 63 and tension member 84 provides means for maintaining the film taut and out of contact with the scanning drum surface and the'edge of the electrodes l8 and it.

Another contact cam 65 is secured on the motor shaft l3, adjacent the contact cam 59, and is adapted to contact with a contactor 68 mounted on the motor base 58. Said contactor is connected by-'conductor 61 to a projection lamp 88 within the lamp housing 28. Another conductor 61a from said lamp connects with one side of the power circuit 65. The contact cam 65 is grounded to the other side of the power circuit by the conductor 60 in a manner similar to the contact cam 58.

The contacting of the cam 65 and contactor 84 closes the circuit to the lamp 68 which remains illuminated during a half revolution of said cams and during the rest period of the film 2i. Conversely during a subsequent half revolution of said cam the'lamp will be extinguished. Simultaneously with the last mentioned movement of the cam 65, the plungers SI are retracted to permit of the shifting of the film by the cams I9 and 40.

.As hereinbefore mentioned one of the objects of this invention is to produce instantaneous and fully developed concurrent sound and image records upon the same film by means of a high frequenoy electrical discharge conducted through a color impregnated hygroscopic film. The passage of this electrical discharge instantly conditions the film, for its immediate use within a fraction of a second in the projector, in accordance with the received electrical impulses which correspond to the varying light intensities of the image and accompanying sound variations originating at the transmitter. 1

To accomplish this end' the scanning drum II is provided with equally spaced conductors 60 fiiuhwiththesurfaceofacylindricalwalllfl of said drum. These conductors are angular-1y disposed relative to the axis of said drum. One end of each conductor is connected by a connector H to a ring 12 secured to the inner surface of the drum. A secondary coil II is secured to the inner surface of the cylindrical wall I0. said coil being grounded on the ring '12 as at It.

A fixed primary coil 15, concentric with the secondary coil 12, is wound on the bearing mem ber l and insulated therefrom. The terminals 15a of this coil are adapted to receive electrical impulses from a radio television receiver 16 as shown'in Fig. 6. These impulses are transmitted to and received by the secondary coil 12, by inceived electrical impulses originating at the transmitter.

Adjacent the conductors 89 on the drum II is another conductor 18 fiush with the surface of said drum. This conductor comprises angularly disposed connected members I! of zig-zag formation forming a continuous conductor. A secondary coil 80 is secured to the inner surface of the cylindrical wall 10, one end of said coil being grounded on the conductor 18 as at ii.

A fixed primary coil 82, concentric with the coil 80, is wound on the bearing member 9 and insulated therefrom. The terminals 82a of this coil are adapted to receive electrical impulses of high frequency, from a radio receiver 83 as shown in Fig. 6. These-impulses are transmitted to and received by the secondary coil 80, by induction, and thence conducted to the zig-zag conductor 18 from whence a high frequency electrical discharge is conducted through the film 2lto the electrode l8, it being grounded by a conductor 84 to the casing i and to the chassis of the radioreceiver.

It is to be noted that the concentric arrangement of these coils requires no physical connections between coils, said coils and their position constituting a transfer point for the high or ultra-high frequency impulses without distortion. This arrangement eliminates commutator distrib utor arrangement. A commutator distributor arrangement used as a transfer point creates distortion of the high or ultra-high impulses due The zig-zag formation of the conductor I8 pro-' vides a greater circumferential length than is possible with a straight band track, therefore a greater number of impulse variationscan be recorded upon the film during one revolution of the The relative speeds of the scanning drum H and film feed rolls 22 and 23 is such as to produce upon the film the desired number of lines per unit length of picture, as for example, a picture length approximating one inch comprises one hundred lines per inch. To produce this number of lines the scanning drum l I is provided with twenty conductors with the drum revolving at a speed five times that of the feed rolls 22 and 23, therefore, one hundred conductors pass the electrodes while the film is moved a unit length between the drum and electrodes.

It is highly desirable to produce a picture upon the film with as many picture elements as possible in order to improve the texture and produce a finer grained picture. To accomplish this it will be very readily understood by the following explanation that this invention permits the scanning and composition of a picture with as many as 400 lines or more to a picture. By constructing the scanning drum with 80 diagonal scanning bars, spaced of an inch apart, which will give a circumference of 20 inches and a diameter of 6 inches. This drum revolving at 4800 R. P. M. will result in sixteen pictures per second with 400 lines to a picture. Furthermore this construction permits the dimensions of the television receiver to be about ten inches in size overall. Now, to take in consideration the same demand on a Nipkow disc scanner it will be seen that such a demand would result in an impracticable construction because of the large circumference of 400 inches (one inchdistance required for a standard film picture and therefore 400 scanning elements) and its corresponding diameter of 127 inches. A television receiver with such a Nipkow disc scanner would require a structure of about 12 feet in height and width to accomplish scanning a picture of 400lines, which would be practically impossible as mentioned heretofore-without taking into consideration the necessary requirements of operating such a television receiver.

Due to the ,angular disposition of the conductors 69 relative to the electrode is a point of intersection is obtained, indicated in Fig. -5 at l9a, where a minimum distance exists between said conductor and electrode, thus confining the path for an electrical discharge with a given area or spot. The maximum dimension of this spot is determined by the thickness of the con ductors 69 and electrode l9.

Referring to the scanning drum I l, the opposite ends of adjacent conductors 89 lie in a plane parallel to the axis of said drum. The electrode I9 spans the endsof said conductors simultaneously as clearly shown by the dash and dotted line It"), Fig. 5, so that these conductors form with the electrode an unbroken path for an electrical disii may be adjusted charge passing between said conductors and electrode.

From an inspection oi Figs- 1 and 5 it will be observed that the relative motions of the film 2| and conductors 88 move in opposite directions so that the spot or point of electrical discharge passing through the film from the conductor 69 to the electrode it moves transverse of the film from right to left. This spot traverses the film once for each conductor passing the electrode. In

this manner successive contiguous lines are recorded upon the moving film in accordance with the intensity of the discharge through the film. These electrical discharges do instantaneously and fully develop and permanently alter the chemical and physical characters of the film, thereby changing the transparency thereof to correspond to the light and shade eilectsof the image or picture impulses originating at the television transmitter.

The sound track portion lid, of the film 2|, is

instantaneously and fully developed by the passage of an electrical discharge conducted through the film from the zig-zag conductor 18 to the electrode l8 whereby the transparency is changed in the same manner as cited above for the picture film except that varying degrees of transparency thereof corresponds to sound variations originating at the television transmitter.

It is to be understood [that the, received impulses may be transmitted from any form of television transmitter of which the picture elements and sound impulses, number of lines and mode of scanning is such as to be adaptable to the recording method and devices herein described.

The electric motor I2 is connected to the power source 55 by conductors 81, said power source being controlled by switch 88.

The last stages of the sound and television receivers, shown in'Fig. 6, are equipped with output regulators 88 and 80 by which the input to the primary coils 15 and 82 of the scanning drum Although specific embodiments of the invention have been illustrated and described, it will be understood that various alterations in the details of construction may be made without departing from the scope of the invention, as indicated by the appended claims.

What I claim is:

1. A television receiver comprising means for receiving and recording current impulses from a television transmitter, a moving film for recording said current impulses, a scanning drum, a continuous conductor and spaced conductors on said drum, electrodes adjacent said drum, radio receivers for receiving sound and picture impulses, high frequency means-inductively in circuit with said radio receivers and said continuous conductor and spaced conductors for passing an electrical discharge between said conductors and electrodes and through said film.

2. A television and sound apparatus for recording varying current impulses from a television and sound transmitter, a scanning drum, spaced conductors and a continuous conductor on said drum, electrodes adjacent said spaced conductors and said continuous conductors respectively adapted to pass varying current impulses therebetween, a moving film adapted to pass between said conductors and said electrodes for recording the effect of said varying current impulses, secondary coils connected to said spaced conductors and said continuous conductor respectively, pri

mary coils within said drumoonoentric with said secondary coils, and sound and television receivers connected to said primary coils.

3. A television and sound apparatus for recording varying current impulses from a television and sound transmitter, a scanning drum, spaced conductors and a continuous conductor on said drum, electrodes adjacent said spaced conductors and said continuous conductor respectively, a moving film adapted to pass between said conductors and said electrodes for recording the eifect of said varying current impulses, secondary coils connected to said spaced conductors and said continuous conductor respectively, primary coils within said drum concentric with said secondary coils, and sound and television receivers connected to said primary coils, whereby said received current impulses are converted into high frequency currents adapted to pass between said conductors and said electrodes.

4. A television and sound apparatus for record-, ing varying current impulses from a television and sound transmittena scanning drum, spaced conductors and a continuousconductor on said drum, electrodes adjacent said spaced conductors andsaid continuous conductor respectively, a continuously moving transparent color sensitive fllm adapted to pass betweensaid conductors and said electrodes for recording the effect of said varying current impulses, secondary coils connected to said spaced conductors and said continuous conductor respectively, primary coils within said drum concentric with said secondary coils, and sound and television receivers connected to said primary coils whereby said received current impulses are converted into high frequency currents adapted to pass between said conductors and said electrodes.

- 5. A television and sound apparatus for recording varying current impulses from a television and sound transmitter, a scanning drum,

spaced conductors and a continuous conductor on said drum, electrodes adjacent said spaced conductors and said continuous conductor respectively, a continuously moving transparent color sensitive film adapted 'topass between said conductcrs and said electrodes, secondary coils connected to said spaced conductors-and said continuous conductor respectively, primary coils within said drum concentric with said secondary coils, and sound and television receivers connected to said primary coils whereby said received current impulses are converted into high frequency currents adapted topass between said conductors and said electrodes, to alter the colorsensitive film in accordance with said received varying television and sound current impulses.

, 6. A television andsound apparatus for recording varying current impulses from a television and sound transmitter, a rotating drum, angularly spaced conductors and a continuous zig-zag conductor on said drum, horizontally disposed electrodes adjacent said spaced conductors and said zig-zag conductor respectively,"one of said electrodes beingadapted to span the opposite ends of adjacent angular conductors and the otherelectrode being adapted to span the zig-zag conductor, a continuous moving fllm adapted to pass between said conductors and said electrodes for recording the eii'ect of said varying current impulses, secondary coils connected to said spaced conductors and said zig-zag conductor respectively, stationary primary coils within said drum concentric with said secondary coils, and sound and television receivers connected to said primary coils respectively, whereby said received conductor on the surface of said drum, independent horizontally disposed electrodes spaced from the surface of said drum, one of said electrodes being adapted to span the opposite ends of adjacent angular conductors and the other electrode being adapted to span the zig-zag' conductor, secondary coils connected to said spaced conductors and said zig-zag conductors respectively, stationary primary coils, within said drum concentric with said secondary coils, and sound and television receivers connected to said primary coils respectively, whereby said received current subjected to the passage of said high frequency currents, whereby said mm is continuously scanned upon the movement'oi' said film relative to said conductors and-electrodes.

8. A television and sound apparatus for recording varying current impulses from a television and sound transmitter, .a rotating drum, spaced conductors angularly disposed relativeto the axis of said drum and a continuous zig-zag conductor on the surface of said. drum, independent horizontally disposed electrodes spaced from the surface of said drum, one of said electrodes being adapted to span the opposite ends of adjacent angular conductors and the other electrode being adapted to span the zig-zag conductor,

secondary coils connected to said spaced conductors and said zig-zag conductors respectively, stationary primary coils within said drum concentric. with said secondary coils, and sound and television receivers connected to said primary coils respectively, whereby said received current impulses are converted into high frequency curcolor impregnated film is instantaneously andpermanently altered in accordance with the received varying television and sound current impulses.

9. A television and sound apparatus for recording varying current impulses from a television and sound transmitter, .a rotating drum, spaced conductors angularly disposed relative'to the axis of impulses are converted into high frequency cursaid drum and a-continuous zig-zag conductor on the surface of said drum, independent horizontally disposed electrodes spaced from the surface I of said drum, one of said electrodes being adapted to span the opposite ends of adjacent angular conductors and the other electrode being adapted to span the zig-zag conductor, secondary coils connected to said spaced conductors and said zig-zag conductors respectively, stationary primaryhoils within said drum concentric with said 6 secondary coils, and sound and television receivers connected to said primary coiis' respectively, whereby said received current impulses are converted into high frequency currents, said currents being inductively transmitted to said conductors and electrodes by said primary and secondary coils, a continuously moving color impregnated film adapted to pass between said conductors and said electrodes, said film being subjected to the passage of independent high frequency currents simultaneously whereby said color impregnated film is instantaneously and permanently altered in separate zones thereon in accordance with the varying received television and sound current im-' pulses respectively.

10. A television and sound apparatus for recording varying current impulses from a television and sound transmitter, a rotating drum, spaced conductors angularly' disposed relative to the axis of said drum and a continuous zig-zag conductor on the surface of said drum, stationary independent horizontally disposed electrodes one of said spaced from the surface of said drum, electrodes being adapted to span the opposite ends of adjacent angular conductors and the other electrode being adapted to span the zig-zag conductor, secondary coils connected to said spaced conductors and said zig-zag conductors respectively, stationary primary coils within said drum concentric with said secondary coils, and sound and television receivers connected to said primary coils respectively, whereby said received current impulses are converted into high frequency currents, said currents being inductively transmitted to said conductors and electrodes by said primary and secondary coils, a continuously moving color impregnated film adapted to pass between said conductors and said electrodes, said film being subjected to the passage of said high frequency currents, meansfor propelling said film continuously between said conductors and said electrodes and means connecting said film propelling means with said drum whereby the circumferential speed of said drum is relatively greater than the linear speed of said film.

11. A television and sound apparatus for recording varying current inipulses from a television and sound transmitter, a rotating drum, spaced conductors angularly disposed relative to the axis of said drum and a continuous zig-zag conductor on the. surface of said drum, independent horizontally disposed electrodes spaced from the surface of said drum, one of said electrodes being adapted to span the-opposite ends of adjacent angular conductors and the other electrode being adapted to span the zig-zag 6on- -ductor, secondary coils connected to said spaced conductors and said zig-zag conductors respectively, stationary primary coils within said drum concentric with said secondary coils, and sound and television receivers connected to said primary coils respectively, whereby said received current impulses are converted into high frequency currents, said currents being inductively transmitted to said conductors and electrodes by said primary and secondary coils, a continuously moving color impregnated film adapted to pass between said conductors and said electrodes, said film being subjected to the passage of said high frequency currents, means for propelling said film between said rotating drum and said electrodes, and means,

connecting said film propelling means with said drum whereby the direction of motion of the drum surface adjacent said film is in opposition to the motion of said film.

'12. A television and sound apparatus for recording varying current impulses from a television and sound transmitter, a rotating drum, spaced conductors angularly disposed relative to the axis of said drum and a continuous zig-zag conductor on the surface of said drum, independent horizontally disposed electrodes spaced from the surface of said drum, one of said electrodes being adapted to span the opposite ends of adjacent angular conductors and the other electrode being adapted to span the zig-zag conductor, secondary coils connected to said spaced conductors and said zig-zag conductors respectively, stationary primary coils within said drum concentric with said secondary coils and sound and television receivers connected to said primary coils respectively, whereby said received current impulses are converted into high frequency currents, said currents being inductively transmitted to said conductors and electrodes by said primary and secondary coils, a continuously moving color impregnated film adapted to pass bemovement of said film relative to said conductors Y and electrodes.

JOSEPH GE'I'IINGER.

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