The Lake County times. [volume] (Hammond, Ind.) 1906-1933, 1912-02-05

wrong in the expression of that opinion.
When the Columbus, o. graft cases
were on trial according TO reporter in
whose word this paper has utmost con-
fidence Thomas Fl. Dean was seen dur
ing the conduct OF the cases there in
the criminal court.
In the meantime how many disto-
graphs are working in Lake County
today:
WOULD BE SURPRISED.
Probably If the truth were known
the people of Lake County would be
surprised outside of its use In Gary it
has already ben used in East Chicago
and Hammond.
Just how many more little dicto-
graphs today are listening from walls,
desks, pictures will probably never be
known until the next exposures take
place. 1t is coming to be indispensable
and who knows but what today the
busy little instrument is getting ready
to change the history of Lake County.
The little uncanny 4-inch disc car
ried in the palm of the hand If neces-
sary can be set up for job in the
twinking of an eye. 1t is simply hung
ON a hook anywhere. If on the wall
put a calendar over it and run the
wires through a partition into an adj
joining room and connect with a bat
terry and. receiver and you hide ii be-
hind the drawer in desk. You can
hook it under the edge of chair or
a table. or place 1t behind a framed
picture. Just so it's out OF sight and in
the room it's all right. You talk
in the lowest sort of voice and be heard
over a wire indefinitely long You
don't have to be in the next room. That
is merely a convenience in quick wiT-
+. ing.
THE LITTLE BUYER.
Suddenly the sound of a buzzer is
heard. The demonstration steps to his
! desk and takes down a receiver. The
conversation he carries on seems Ia
be thrown into thin air.
That's one of its uses. The person on
the other end of the line could have
plain as he could hear you talking
You open drawer and show the trans
mitter of the photograph, which has
received and reported you words as he
uttered them.
| The whole instrument, transmitter
receiver and battery. can be held wits
| ease in the palm of one hand. The
| transmitter is the important thing
/ It's function is the same as the trans
mitter of an ordinary telephone 1t re
| ceives and transmits vibrations o
sound. 1t is highly sensitive. however
and instead of talking into a mouth
| piece the user can talk in a natura
| tone of voice in any corner of the room
and the sound carries with great dis
tinctness.
The transmitter though remarkabl,
! sensitive. ia quite simple. 1t consist
of "a rubber sound collector servin;
the same purpose s the sound chambe
of violin. Within that is a disk o
aluminium the size of watch, in whicl
there is q delicate carbon membrane
/ Behind the membrane are six tiny cleo
| tros containing minute carbon balls
which are set vibrating violently at tn
smallest vibration. The vibration o
the carbon dix is simulated and this v.
bration is transmitted. over the wire
by a weakening and strengthening o
Il the current as in a telephone.
II At the other end of the wire is tn
i recefver-just like the telepwhone re
ceiver. and battery. The .operativ
i ma dtective case sits with the receive
: clamped to his ear and by means 9
short hand reproduces The conversatfo
, | going on in the other roorl