The Montgomery advertiser., 1903-06-07
A PRACTICAL DEVICE
That Transmits Writing or Drawing
 by Telephone.


 Brooklyn Eagle.
 Not since the first message was flashed over the first telegraph wire or the first greeting exchanged over the first tele- phone has Uncle Sam issued letters pat ent for an invention which promises so much for the business world as those is- sued month or two ago to Herr Ernst Karl Gruhn for an instrument which he calls a ''Telechirograph." The teIechir- ograph Is precisely what its name im- plies, a device which transmits over an ordinary telephone wire the written mes sage, as well as the spoken. and which transmits not merely the message. but the handwriting of the sender. even as good telephone transmits not merely the words. but the voice, of the speaker.
 The telechirograph iE to the telephone what the telautograph promised to be to the telegraph when 1t, startled the world with It's possibilities. But 1t IS. while the tslautograph merely promised to be. While the. latter has so far prov cd of little practical value because it has not as yet conquered distance. at lea st not any distance worth the conquering. the telechirograph has been used sue cessfully over 6 s0O-mile circuit. and there seems no logical reason why it should not be used with equal success over 2,00o-mile circuit. when such an one comes into general commercial use.
 It Is a wonderful thing that the con- size of an ordinary office typewriter should be able to do all this. but they are The invention consists of a transmitting and receiving apparatus united in a sin gle instrument. It reproduces the hand writing of the individual down 10 its min utest idiosyncrasy. By its use man in New York can draw his check on c bank in Chicago and have 1t cashed within few minutes of signing. It carries the written word wherever the telephone car ries the spoken word. If Mir. Jones is out" Mfr. Brown can write his mes sage. as secure that Jones will get il when he returns as If he had stood at Jones's door and written it on slate left for that purpose-in fact. more se- cure, for the slate Is exposed to any mischievous passerby. while the telechi- rograph message is not
 The transmitter is enough on the prin- ciple of the telephone to be easily under stood by the people. It consists of a metallic pencil holder. to which are con nected two wires. each being part of an independent closed electric circuit. When not in use the pencil lies n q rest which opens a switch breaking both circuits very much as the receiver" hangs in a rest on the ordinary telephone. and by It's weight opens the switch and breaks the current. When taken out of the rest the switch is cIossd and the currort thus set in motion lights a small incsndsscent lamp in the receiving instrument and the apparatus is then ready for use.
 In the end of the metallic pencil is placed an ordinary piece Sf pencil lead. which plays slightly In and out. The writing may be done on any pad or riecs of paper that is handy The pressure of the pencil 0R 1t iR W-iNDG closes an electric circuit la the mSsallis interior of the pencil holder. For S00vsniencs there iB aR arrangement such as tracasmsn use in writing PurchAsS s,ip4. which shows a square sf paper h . tablet O. slate. on which the desired message may bs written. The up and down motion of the pencil in writing sets in action what electricians call the ordinate cur rent. and the left to right motion starts the so-called abscissa or horizontal mo- ton current.
 In the ordinary motions Of the hand in writing both currents are called into play in a greater or less degree. If the pencil is placed at the extreme top of the pad the minimum degree of intensity in the ordinate current Is produced. and if placed at the bottom of the pad the maximum degree of intensity Similarly.