THE TELEPHONE MARVEL.

Taranaki Herald, Volume LIV, Issue 13726, 15 August 1908, Page 2

THE TELEPHONE MARVEL.

If the Daily Mail's account of .the invention is correct,.it^e, telephone subscriber will soon be, able to* us© his wire for the' transmission of writing. Such transmission ' is no 'new thing, but the value of Herr Gustav Gryanna's invention is that it is rapid, comparatively simple, and can be attached to the ordinary telephone. Briefly the system is this. % The pencil writing on the< transmitter sets v up currents „ which, move a light r«y % in* the receiver", the -Tay'Srmo^ment^ over a, spool of sensitised papeT corresponding, to, the movements of the pencil at the other end. On laying the pencil iddwn, the lamp is extinguished,, and a little ( electromotor * pushes forward the sensitised paper, on which the message has just been photographed, passes it through a chemical bath, in which it, is developed, and in ten seconds, the writing or sketch' becomes visible, while another film is unwound from the spool and placed in position to receive the next message. All these processes are automatic, . The. person who receives- the mess4ge has out to "fix the film in thei photographic; sense. The uses to whictt the invention may be put are many. An engineer ordering^ goods cotHlgf furnish rough plans as he talked, and^» journalist could transmit sketches to/hiq paper over long distances, giving a verbal desepption as "he drew. In •mi^kaiiy operatio^na the field telephone would become a transmitter of 'plans of theenemy's. position as <weH as of verbal reports. In social. intercourse*' it will be a welcome luxury.' t'With the new invention installed one could ring a friend up, ask him to dinner, and if he did not know Where the house was, send hira^pfcaai^of thef locality over the, wire. t There^-could, be no dispute over a business message transmitted in writing, for the instrument cannot lie. Further, suppose A wishes to communicate, with. B by telephone, but Bis nojb aif his dftßfce. All that "A has to do . is to write,, hp message. When B returns he^ loo&s at his apparatus to see , if any messages have come for him during pis. abaence. c ....^