Evening bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1895-1912, 1908-08-08
Write By
Telephone
ANOTHER WONDERFUL INvEN.
TON IS PRESENTED TO
WORLD

London, July 25.-Simultaneous
writing and speaking by telephone
are made possible by the wonderful
invention Of Gustave Grzanna Of Ger
many. who has been demonstrating
his instrument in London. With the
Grzanna telephone, handwriting,
sketching. etc, can be transmitted
over an ordinary telephone wire for
very considerable distances In few
seconds. This means great i'm
provement on the old system of cleo
trio writing at a distance. which was
/ slow and clumsy.
Messages on the Grzanna system are
passed through as fast as they are
written. ;sOne. can actually -speek and
write or draw at the same Time
through the same wires. the telephone
being connected with the apparatus
Ito use the technical term through a
condenser OF two microfarads.
Valuable For Reporters.
BY this system an artist reporter
can telephone to his Office "a descrip-
ton and sketch Of any event simulta-
neously. In military operations, maps
and sketches illustrating the enemy's
movements can be wired back by
scouts as they unfold themselves. to-
gether with verbal dispatch, or an
engineer can order material by tele-
phone from manufacturer, accom-.
panying his message with drawings
Of the goods he requires.
The wonderful system OF telauto-
graphy is accomplished by means OF
a light ray travelling over sensitized
paper.
Two Electric Contacts.
The graphite pencil at the trans
mitter end has two electrical contacts,
one for horizontal and the other for
vertical movement, curve being
made up of the component parts OF
one or the other. On taking the pen
Gil from of its rest tiny electric
glow lamp In the receiver box illum-
mated.
The light from this lamp is con.
Quoted to a prism. from which II Is
reflected on to two little pivoted mir
rOrs, one of which corresponds With
the circuit OF horizontal movement
and the other with that of the verti.
cal
The light ray produced by the mir
rors is absolutely identical with the
movements of the point of the pencil.
and 1t Is thrown upon the section of a
spool OF sensitized paper set to re.
ceive It. BY Infringing the attach
ment to the receiver box containing
the Photographic film, and substitut.
ing focusing glass, the evolutions
of the light ray can be watched. 1t
appears as tiny pinhead OF light
travelling In all directions over the
glass-really initiating exactly the
handwriting or drawing of the trans
mitter.
Chemical Bath Used.
On laying the pencil down the lamp
is extinguished, and little electro
motor pushes forward the sensitized
paper, on which the message has Just
been photographed, passes II through
a chemical bath, In which 1t Is devel-
oped, and In ten seconds the writing
or sketch becomes visible, while an
other film is unwound from the spool
and placed In position to receive the
next message. All these processes
are automatic. The receiver has now
but to cut of the film bearing the
message and fix" It in the photo.
graphic sense.
The instrument cannot lie. No mis-
take as to the terms of orders or fig-
ures Is possible. The transmitter has
his own message as he wrote 1t to act
as a voucher. This telautograph per-
mits OF one more refinement. A wish
es to communicate with b by tele-
phone, but B Is not at his ONCE. All
that A has to do Is to write his mes
sage. When b returns he looks at
his aDuaratils IN soc n any messages