US1165454A

US1165454A - Apparatus for receiving and strengthening electric oscillations.

Info

Publication number: US1165454A
Application number: US738305A
Authority: US
Inventors: Josef Schiessler
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-11-23
Filing date: 1912-12-23
Publication date: 1915-12-28
Anticipated expiration: 1932-12-28

Description

J. SCHIESSLER.

APPARATUS FOR RECEIVING AND STRENGTHENING ELECTR|C 0SC|LLATIONS.

APPLICATION FILED DEC. 23, I912.

Patented Dec. 28, 1915.

J'OSEF SCHIESSLER, OF-BADEN, N EAR VIENNA, AUSTRIA-HUNGARY.

APPARATUS I'OR RECEIVING AND STRENGTHENING ELECTRIC OSCILLATIONS.

Specification of Letters Patent.

Patented Dec. 28, 1915,

Original application filed November 23, 1910, Serial No. 593,890. Diiridecl and this application filed December 23, 1912.

To all whom it may concern: 7

Be it known that I, Dr. Josnr SoHIEss- LER, subject of the Emperor of Austria-Hungary, residing at Baden, near Vienna, Austria-Hungary, have invented certain new and useful Improvements in Apparatus for Receiving and Strengthening Electrical Oscillations, of which the following is a specification and is a division of my application Serial No. 593,890, filed November 23, 1910.

This invention relates to receiving and strengthening apparatus for electrical undulations and has for its object to provide an arrangement, whereby very weak electrical oscillations or undulations such as those occurring in electric telegraphy or telephony with or without wire may be detected and strengthened, so as to cause powerful undulations in the current of the receiving instrument. According to this invention an electrode suspended in a pendulum like manner andeasily movable, whichds provided with a suitably shaped soft iron core is arranged so'as to be fixed in the direction of its axis by an adjustable magnetic field damping its free and forced oscillations. The other electrodes, hereinafter termed contacts, which may be made wholly or in part of a radioactive substance or of an alloy containing the same are adjustably mounted on twooscillatory electrodes which in their turn may be fixed by an adjustable magnetic The resistance formed by the transition of the current between said electrodes, which will hereinafter be referred to as the transitional resistance and which may for instance be an arc, is acted upon by influencing the pendulum electrode by adjustable electromagnets of a suitable magnetic system, which may slide lengthwise with respect to the said electrode in order to obtain a varying sensitivity of the arrangement.

The electromagnets, which may be connected. either in series or in parallel, are acted upon by the oscillations or undulations to be detected and strengthened.

The accompanying drawing diagrammatically illustrates a receiving arrangement for telegraphic or telephonic purposes which may also be used as a relay, an alternative method of connecting the receiving telephone being indicated in dotted lines.

The receiver comprises two luminous arcs eomected in series and having a self regu Serial No. 738,305.

lating arrangement. One of the metal electrodes 01s common to both arcs. lhe electrically mounted positive electrode 1 of the one luminous arc and the negative electrode 2 of theother are are arranged on opposite sides of the electrode 0 which is suspended like a pendulum at 4.4 by means of a spring blade 43. The two outer electrodes l. and 2 are carried by downwardly extending spring blades and 46 which are attached to the connecting terminals 47 and 48 respectively. Correspondingv to each or" the three electrodes is a

holding magnet

49, 50 or 51 and to each of the two outer electrodes l and 2' there is provided in addition to the holding magnet a regulating magnet 52 or 53.

The current for feeding the luminous arc may be derived for example from a lighting circuit conductor, provided with a reducing rheostat, for example an incandescent lamp,

or preferably with an-accumulator battery connected in the arrangement shown through a self induction coil 1% of the kind described to the connecting terminal 47 and the negative terminal 12 is connected to the con necting terminal 48, through the winding of the holding magnet 49 or" the central electrode 0 and through a self induction coii 25. The holding magnet 50 and the regu. lating magnet 52 of one of the luminous arcs (0, 1) are included in a shunt 5e: and a second shunt 55 includes the holding magnet 51 and the regulating magnet 53 of the other luminous are (0, 2).

The luminous arcs are influenced by a magnet system which in the example illustrated consists of two electromagnets 56 and 57 arranged one on each side of the spring blade 43 carrying the central electrode 0. The coils of these electromagnets 56 and 57 are connected in series and included'in a conductor 58 which is connected to the terminals 59 and 60.

By means of a switch 61 the terminals 59 and can be included in a conductor 62 connected to the transmitter or, asshown, constituting an air conductor or antenna, which picks up the electric waves transmitted by the transmitter. By moving the switch 61 overonto two other terminals 63 and 64 the air conductor 62 can be connected to a conductor 65 which includes a number dotted lines,

which matured into Patent No.

of

resonance relays

66, 67, 68, 69 in the form of monotelephones or other devices of the usual kind, tuned for various numbers of periods and connected up in series or in parallel. Arranged in connection with each resonance relay is a

signaling device

66, 67, 68 or 69, which is set in operation when the corresponding relay responds and which may be optical or acoustical or both.

' As soon as the waves coming from the transmitter reach the conductor 58 through the air conductor 62 and flow electromagnets 56 and 57 these magnets act upon the elastically mounted electrode 0 so that the two luminous arcs are varied in the rhythm of or in accordance with the incoming electric waves or the disturbances imposed upon such waves. nets 56, 57 may be arranged to move along guide bars and may have adjustable cores which act in common by means of an electrode carrying spring as just described upon one electrode, or may each act separately upon one corresponding electrode.

' The current fluctuations set up in the receiving circuit can be transmitted by means of any suitable method of connection to the telephonic or telegraphic receiver or relay proper. By way of example two different methods of connection are illustrated in the drawing.

In one method of connection the current fluctuations are transmitted by means of the self induction coil 25' and by transformation to the induction coil 7 2 placed in the circuit 70 of the receiving telephone 71 In the other method of connection, shown by the condenser shown in my coapplication Serial No. 738304 1,116,130, November 3, 1914, is used. The

condenser plates

38, 39 are then connected in parallel,

y the conductors 40, 41 to the luminous arcs at the two connecting terminals 47 and 48 thereof, while coil 42, which is adapted the condenser plates for pending ductor 70 with the telephone 71. When us ng a capacitative-inductive coupling of this kind the condenser is charged by the I alternating tension produced in the primary receiving circuit by the fluctuating current. When the condenser is discharged a change again takes place in the electrostatic field, I whereby induced currents are 'the coil 42, which induced currents are emproduced ployed in the receiving telephone 71.

- If the switch 61 be moved onto the termifalls 63 and 64 for the purpose of receiving a call, the resonance relay conductor 65 will be switched into circuit. Supposing now for.

example that that relay of'a group of relays Wl'llch 1s tuned to 500 double vibrations be caused to respond, so much reducing resistthrough the i The electromagcordance with the oscillations ance will be switched into the transmitting station system that the vibration generator thereof will produce about 500 periods. Only that resonance relay 66, 67, 68 or. 69 which is tuned to 500 double vibrations will then respond and set its corresponding signaling device 66, 67' 68' or 69 in operation. The switch apparatus 61 may be so arranged in a well known way that when the person thus called takes the telephone off the switch hook the receiver circuit is switched in automatically.

The parts may be so arranged that the calling current is only led into the circuit 65 of the resonance relays after it has been strengthened by a telephone relay.

It is obvious that various other arrange. ments of the magnets and methods of con- .nection may be used without departing from the scope of this invention.

Claims:

1. In an apparatus for receiving and re-- trol the oscillations thereof, and electromagnetic means acting upon the arcs in" acto be rem forced. i

2. In an apparatus for receiving and relaying electrical oscillations, a local circuit comprising a plurality of electric arcs, oscillating electrodes for said arcs, an electromagnet for each electrode for controlling the oscillations thereof, said electromagnets being supplied'with current from said local circuit, and further electro-magnets acting upon some of the electrodes to cause oscil lations of the same, the said further electromagnets being acted upon by the electrical oscillations to be detected and reinforced.

3. In an apparatus for receiving and strengthening electrical oscillations, a local circuit comprising a plurality of electric arcs, oscillating electrodes for said arcs'comprising'outer electrodes having one arcing point and inner electrodes arranged between the outer electrodes and having two arcing points, an electro-magnet for each outer electrode supplied with current from said local circuit, and further electro-magncts acting upon the inner electrodes, electro-magnets being acted upon by the electrical oscillations to be detected.

4. In an apparatus for receiving and relaying electrical oscillations, a local circuit comprising a plurality of electric arcs, oscillating electrodes for said arcs comprisin outer electrodes having one arcing polnt an inner electrodes arranged between the outer electrodes and having two arcing points, an electro magnet for each outer electrode suplied with current from said local circuit, and further electro-magnets acting upon the the said further inner electrodes, the said further electromagnets being acted upon by the electrical oscillations to be detected.

5. In an apparatus for receiving and relaying electrical oscillations, a local circuit comprising two electric arcs, three oscillat, ing electrodes for said arcs, one of them having two arcing points and being arranged between the two other electrodes having one arcing point each, an electromagnet for each electrode to maintain its position with varying force and supplied with current from said local circuit, a further electromagnet for each of the outer electrodes to regulate their distance from the inner electrode and connected in series with the other electro-magnet allotted to said electrode, and further electro-magnets acting upon the inner electrode, the said further electro-magnets being acted upon by the electrical oscillations to be detected.

6. In an apparatus for receiving and relaying electrical oscillations, a local circuit comprising two electric arcs between three electrodes mounted on oscillating supports for said arcs, one of them having two arc- ,ing points and arranged between the two dioactive substances arranged in proximity thereto, oscillating electrodes for said arcs and means acting upon the arcs in accordance with the oscillations to be reinforced.

8. In an apparatus for receiving and relaying electrical oscillations, a local circuit comprising a plurality of electric arcs, oscillating electrodes for said arcs consisting of alloys containing radioactive metal components, and means acting upon the arcs in accordance with the oscillations to be reinforced.

9. In an apparatus for receiving and re laying electrical oscillations, a plurality of vibrating electrodes for forming arcs between them in series, a local circuit including said electrodes, and 'electro-magnetic means to stabilize the vibrations of said electrodes, means controlled by the oscillations to be reinforced to vary in accordance therewith the arcing distance between said electrodes and thereby similarly control the 10- cal circuit, and means electrically connected to said local circuit to receive local current varied in accordance with said oscillations.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

DR. JOSEF SCHIESSLER.