The Democratic advocate. [volume] (Westminster, Md.) 1865-1972, 1903-05-23
HANDWRITING SENT BY WIRE.
An Invention Which Reproduces it
at the Other End.

Ernst Karl Gruhn, of New York, has pat,
euted an instrument which he calls "tele-
chirograph" Ii transmits over an ordinary
telephone wire the written message, rs well as
the spoken. and transmits not merely the
message, but the handwriting OF the sender;
The invention consists of transmitting and
receiving apparatus united IN a single lnstru'
ment. By its use, 1t is declared, man III
New York can draw his check on bank IN
Chicago and have it cashed within lew MN,
uies Of signing. 1t carries the written word
where the telephone carries the spoken "ord.
1t Mr.. Jones is out Mr.. Brown can write
his message and Mr. Jones will get 1t when he
returns. ,
The trausmitter consists of "A metalhc pencil
holder, to which are connected two wires, each
being part of an independent closed electric
circuit. When not in use the pencil lies IN
rest which opens a switch breaking both CIR
cnits. much AS the receiver hangs IN rest
on the ordinary telephone, AID by ITS weight
opens the switch and breaks the current;
When taken ont OF the rest the switch IS closed
and the current thus set IN motion lights
small iucade>cent lamp IN the receiving lnsirn-
ment. The apparatus is then ready for use
In the end OF the metallic pencil Is placed
an ordinary piece of pencil lead, which plays
SLIGHTLY in and out The writing may be done
on any pad or piece of paper that Is handy
The pressure of the pencil on 1t IN writing
closes an electric circuit in the metallic inferior
Of the pencil holder For convenience there
i an arrangement such as clerks use IN writing
purchase slips, which shows a square OF psper
IN a tablet OF slate. on which the desired mes
sage NAV he written. The up-and-dowu mo
ton Of the pencil in writing sets IN acton
what electricians call the ordinate current, and
the left-lo-right motion starts the so-caiied
ahSciSsa, or horizontal. motion current.
In the ordinary motions Of the hand IN writ
ing both currents are called INTO play 40
grr..ler or less degree. Ii the pencil Is place
Al the extreme top Of the pad the minimum
degree Of intensity in the ordinate current .
produced, and If placed al the bottom ot the
mad the maximum degree; similarly, II the
pencil be pressed nu the extreme leit OF the
It4d the minimum degree of intensity IA the
sisciS<a current and the maximum If pressed
on the extreme right Of the pad The cur
rents thus affected are shal are known as
closed or continuous, beng the ssme used IA
the telephone a. distinguished from the open
circuits used 10 the Morse telegraph.
The same amount % amperage and the
same intensity or voltage or current a i used
IN the telephone sill serve for the telechIro-
graph. Auy current which will transmit the
sound waves Of The voice in speaking Will
equally transmit the muscular pressure OF the
hand iu srltluE or drawing. third oF return
airc T. necessary 80 complete The circuit tor
TOE vertical aud horizontal motion currents
- much for the TRANSMITTED In the re-
seIvtr lh-r. Is 4 small mirror supported on
thrye pninls tao 81 which are movable, 50
Thai the mirror can be turned OF rocked 81 any
auk.r Ia ID. back g the mirror are two
magnets controlled, respectively, BY the h0u-
tangAl ani vertical motion currents. The
ligh; from the lAfnp passed through q cuucrn.
frafiur lens produces compact bundle, uT
pencil. OF iigu, rays. wh'ch fall uH 'h~ m'rror-
Tn" mirror IN Response To she magnets moves
sa gsrr,-sp ondencs With thu movements Of the
pencil $, the other ~ni The ~ oi light, be.
Hsele4 on 4 strip of @eusIilEed photographic
PAPER. iailows The movements ni ih~ wrsef
basI and produces on ghs ssHsitlz-,i hiua fac
siulsic oi the pencil markiugs al a.. transmit
ispE instrument
Abrn the message j. s's'upl~i.i BE metallic
Es-ut7l .- pul tzAck lu Be-. rest Al the transmit
tinz instrument zna the cigcsit = broken In
lhe receiving sHsifg.r-ni the light Ryes out and
as electro usol1v oIzrsiei BY an independent
battery ID srg la ga,sFt1a- Ihis motor operates
; srasn 81 @nEeis uF Faiiers Shich dgas the
portion uf The us -rltt~u os By the light ray
through q ist~.arins hath and oct again
tAsuash gsss st Rubber sryiuE rolls, 50 that
she coEap,.tra nsrs-sEr delivered about 80
seconds silrr she .vrs,i..r replaces the metallic
grngt. sn .ss REST TIE entire appsraias =
Contained ia = gslisard bard -ool box u by
Ia Big b inches.