The Montgomery advertiser., 1903-06-07

If the pencil be pressed on the extreme left of the pad. the minimum degree of intensity in the abscissa current, and the maximum If pressed on the extreme right of the pad. The currents thus affected are what are known as closed or con- | tiEuous. being the same used in the telephone. as distinguished from the open circuit used in the Morse telegraph. The same amount of amperage and the same intensity of voltage of current as Is used in the telephone will serve for the telechirograph. Any current which will transmit the sound waves of the voice in speaking will equally transm4. the muscular pressure of the hand in writing or dra wing third or return wire is necessary to complete the circuit for the vertical and horizontal motion currents.
 So much for the transmitter In the receiver there Is a small mirror support ed on three points. two of which are movable. so that the mirror can be turn ed or rocked at any angle. In the back of the mirror are two magnets controlled respectively by the horizontal and yer tical motion currents above described. The light from the lamp passed through concentrating lens produces a compact bundle or pencil of light rays. which fall on the mirror. The mirror, in response
 
 spondence with the movements of the pencil at the other end. The ray of light defiected upon a strip of sensitized photographic paper. follows the move ments of the writer's hand and produces on the sensiuzed film an exact fac simile of the pencil markings at the transmit ting instrument.
 When the message is completed the metallic pencil is put back !n it's rest at Al. ag1 ciut is broken. In the receiving instru ment the light goes out and an electric motor operated by an independent bat tery in the receiving instrument is set Tn motion. This motor operates a train of wheels CT rollers which draw the DOT tion of the film written upon by the light ray through a developing bath and out again through a pair of rubber drNi.Ig rolls so that the completed message is delivered about thirty-five seconds after the sender replaces the metallic pencil in It's rest The entire apparatus is con- taind in a polished hard wood box l3xl3X15 inches.
 Also 1t does not confine itself to repro ducing writing. It rcproduces drawing as we'll. One sees in fancy some Sher- lock Holmes of the future. desiring to advise his lieutenant to watch for cer- tain criminal sitting down in front of
 
 said criminal. that his lieutenant may know at once the appearance of the man for whom he Is to watch. Particularly one sees the energetic newspa per artist, who knows that the mail will not de liver his sketch ''in time for the first edition" or who even knows that he cannot himself reach the office in time. sitting down before a telechiroEraph and teIephoning in his picture-"by our art fst on the spot" Of course, it needs de- velopment. but 1t seems to be capable of almost unlimited development.
 The man who has made this thing He Is young: he Is German. Some thir- ty-tHo years ago he wes born in Silesia. In due time he studied and graduated from tho technical high school of Char lottenberR. For three years he devoted hirasalf. day and night, to solving the problem of a recording telephone Many times the solution seemed almost within his grasp. when some unexpected dif1- culty arose. Finally it was done, and. like everything else. 1t seemed so amaz- ingly simple once one knew how!
 About a year agO the German patents were secured. But Herr Gruhn was poor poor as Jobs turkey or as the tradi- l tional inventor. He succeeded. however. | sn interesting Otto '. herzka. a manu- | featuring chemist of Dresden, wisl whose | aid the KopieT Telegraph Gaselschaft | was organized. to make and sell the tel | eehirograph on that side of the mill pond. |
 MT. Herzka put the matter in the ]