US651013A - Electric telegraphy. - Google Patents

Description

No. 65|,0|3. v Patented June 5, 1900. KITSEE.

ELECTRIC TELEGRAPHY.

(Application filed May 20, 1896.) (No Model.)

I IIIII/IIIIIIIIIIIIIIIIIIIIIIII/A T0 SOURCE OF CURRENT r0 SOURCE OFCURRENT Witnessex. Inventor.

' ITED raises ssreivoa rooHAR as 1-trauma-m A H A Ysruorncarron forming part of Letters Patent No. canola, dated June a, moo.

' Myinvention relates to electric telegraphy.-'

itsobject is to convert the rays of a receiver L consisting of a vacuunutube into sound or to record.

, Broadly speaking, myinvention consistsin the conversion of the glow-rays of the vacuuni-tube, generated therein with the aid of an' interrupted or alternating current, into 1'5 sound or record.

Referring to the drawings, Figures 1 and 2 are diagrammatic views embodying my invention, and,Fig. 3 is a sectional view of a globe of a modified form.

In Fig. 1, .A is a'vacuum-globe or similar device provided, as is usually the case, with r the two terminals of a circuit connected to a sourceofcurrent. InproximitytotheglobeA is the selenium-stick or cell B, connected with one of its terminals tothe positive pole of the battery 0. The other terminal of theselenium-cell B connects with one end of the coil of the electromagnet D. GlobeAand seleniumcellBare inclosed in thedark chamber A. In

the circuit with the cell B is the battery 0 and electromagnet D. Connected to the same Inclosed in the dark chamber A and in series battery is the secondseleniu-m-cell B.

with said cell is the electromagnet D'. "lo 5 persons versed in the artit will be at once apparent that if resistance of B and D plus their circuit is alike to the resistance of B and D" plus their circuit the flow of the 'current in both circuits will be equal and the so electromagnets D and D will exert, if oppositely wound, an equally-opposing force on an armature placed at equal distance between them, and such armature will therefore be at rest; but should, through any cause whatsoever, the resistance of one of the two circuits be lowered the flow of the current through both circuits will be an unequal one and an armature placed between both electromagnets will be attracted through the greater force of one or the other. Now it is'well known that elenium in its crystalline state is very sen- "s pu hoi iniquit 20.1096.

sum a. 5921335. no n sitive to the action of light and, as was proven by experiments, the rays of the vacu u m-globo lowerthe resistance of such selenium even more than would be the case under ordinary illumination of same strength. As long,thorcfore, as the globe A is not traversed by the electrical current the conditions of both the dark chambers A and A. are equal;. but as soon as the terminals of the globe A are connectedto the source of current the inner space of said globe becomes illuminons,theroby lowering the resistance of the selenium-cell l3 and as a result destroying the equilibrium between the two circuits. Between the two electromagnets D and D. is placed the armature R, connected to the springs d" (2 This armature is provided with a contact-point d, in proximity to which is placed the adjustable contact-point d. The lower part of the mov able armature is connected to one pole of the battery G, the other pole of which connects toone terminal of the electromaguet of thesounder' F, the other terminal of said electro- -magnet being connected to the adj ustable contact-point d. It telegraphing or signaling is done according to the Morse or alphabetical code, a shorter glow-time representing a dot and longer glow-time representing a dash, it is obvious that the armature R will, if the adjustments are properly made, close the circuit containing the local sounder F in correspondence with the'glow of the globe A. lVe therefore have, as far as the receiving operator is concerned, the usual sound-receiver. It is also self-evident that instead of or in conjunction with the sounder F any wellknown recording instrument may be placed inthe circuit.

In Fig. 2 I have placed the sounder F in direct circuit with the selenium-cell B, so as to illustrate the probability of translating the lightsignals into sound-signals without the addition of the relay, as illustrated in Eig. 1.

In Fig. 3 the selenium-cell B is placed in the inner space of the globe A. In allcases,

but more so in the last instancethatis, when the selenium is placed in the inner space of the globe-its resistance is greatly lessened, even if the light-rays of the vacuumglobe are not perceptible to the naked eye.

Having now described .my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In electricity, a device fol-transforming the luminosity of a vacuum-globe into sound or record, consisting of a vacuum-globe connected to a source of rapidly recurring or alternating impulses of electricity, at second circiiit containing a generator of electricity, a translating device and selenium, said selenium being placed in suitable relation to the action of ,said vacuum-globe.

2. In electricity, at translating device consisting of avacuum globe or device similar iuits action contaiuingseleniuunthe vacuumglohe and the selenium being adapted each to he connected to a separate circuit containing generators of electricity and translating devices.

3. In electricity a flevicc for changing or altering the'flow of a current in a local circuit, which consists of a vacuum-globe connected to a source of rapidly recurring or alternating impulses,' a local circuit containing a t-ranslating'd evice, generators of electricity and selenium, said selenium being placed in juxtaposition to said vacuum-globe.

"4, In a system of telegraphy, a receiver consisting of'a vacuum-globe, a. local circuit containing a translating device and battery,

ISIDOR KI'ISE I.

subscribing witnesses.

Witnesses:

W LLACE B. Enmmms, R. M. TOPHAM.

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