SU159A1 - Cathode relay - Google Patents

Description

Conventional cathode relays are cathode tubes with three. By electrodes, of which one is maintained in a heated state, the second one represents a metal grid of one kind or another and the third electrode can have one or another form, depending on the design features.

The existing cathode relays, in the author's opinion, have a number of disadvantages that do not allow the increase; to drink any power of any kind. In order to obtain a significant amount of electrons from the incandescent electrode, it is necessary either to extend the heated filament or to increase its surface by replacing the filament with a plate. The first method makes it possible to increase the potential difference at the ends of the filament, which adversely responds to the operation of the device, since this results in different potential differences between the individual cathode sites and the anode. With the second method of increasing the surface; the current required to maintain the electrode in a heated state will be very significant, as a result of which it is supplied through a glass shield;

the cup is difficult to implement; in addition, in this case there will be a significant potential difference between the individual points of the incandescent electrode.

The present invention aims to eliminate the above disadvantages.

In order to be able to have a heated electrode of a large surface, at which this surface would represent a practically equipotential plane or other equipotential surface, the following devices are proposed. According to the author, the calculation and some preliminary experiments show that with devices of the latter type one can obtain without difficulty electromagnetic energy in the antenna, which is completely sufficient for communication with the help of a cordless telephone through the ocean.

Instruments of this kind are distinguished from others by special devices for heating the surface used to emit electrons. For this purpose, an auxiliary discharge is applied between the auxiliary electrode and the electrode, which must be

is hot. Using such a device, the electron radiating surface can be taken arbitrarily large sizes without the need to use excessive currents to heat it:

FIG. 1, 2, and 3 schematically depict cathode relays, making it possible to obtain heating of an electron-radiating surface using | auxiliary electrical section i p yes. In Figures 1, 2 and 3, and depicts: a heated electrode of one or another shape, b is a grid representing a certain metal surface with holes, c is a cold electrode-anode, d-auxiliary cathode, heated or cold, serving ; to form an auxiliary partition between a d and a. FIG. 2, besides i of said parts, there is also a screen e with a hole in the form of some surface of non-conductive or pro- water substance; in the latter case, a special conclusion can be drawn from it, to give it a certain definition; divided potential in relation to the heated electrode. All parts are enclosed in a hermetically sealed | vessel with appropriate leads: for current supply. Thanks to this arrangement, it is possible to receive, with j sufficiently good vacuum, with the help of an auxiliary bit between d to a from an external source; electromotive force, uniform

heating the electrode a. Since the last electrode can be taken of a significant cross section, the potential difference between its individual points can be made any small, i.e. the surface of this electrode can be considered equipotential. This circumstance allows the electron flow to be very uniform in composition with respect to the velocity distribution. Under these conditions, the distance between the heated electrode, the grid and the cold anode can be taken small by 1, which is extremely beneficial in terms of harmful losses in the device itself.

The same device can serve to rectify the alternating current, since the current can flow from the heated cathode to the cold anode, but cannot pass in the opposite direction, in which case the presence of the grid is not necessary.

SUBJECT OF INVENTION.

A cathode relay, characterized by the presence of a cold or hot electrode d, used to heat the equipotential cathode a by means of an auxiliary electrical discharge between the electrodes rf and, which, if necessary, can be separated from each other by a screen / conductive or non-conductive substance .

to patent DACHERNYSHEV.L №159

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