Omaha daily bee., 1915-05-03
new KIND OF TELEGRAPHY
Simple Method of Overcoming Re.
sistance on Wires.
GREAT SAVING IN COPPER
Practical Union of Telegraph and
Telephons Lines - LonG-Dis-
lance Repeaseru Put Out
Of Business.

Of Business
Something entirely new in electricity IL
a wonderful new system Of telegrabhy
BY which messages can be transmitted
through 100000 ohms Of resistance with
two cells OF a dry battery. one cell a.
each end OF the line. The operating APP
paratus consists Of a combined telegraph
key and soundor, adjusted securely 10 a
telephone for telegraphing over telephone
and telegraph lines.
As Just stated. by thn system messages
can be sent through 100000 ohms OF re-
sistanee,, as has been demonstrated, BY
inserting In the main line In series three
glass tubes. filled with water.
The tubes used for the experiment are
three oiehths-inch inside diameter and
five-eiehths-lnch Outsfae diameter and
each IL eighteen inches long. After filling
the tubes with watsr the ends were corked
and piece Of No. IA gauge copper wire
was inserted through each cork and TIM
mersed about one inch in the water. The
tubes wore then. connected together In
series and the two farther ends connected
20 a 'Megger'' ana the total resistannf
tested. the whole recording 100000 ohms
The glass tubes filled with water were
then connected IN series in a main teis-
phone limo and tried
Two telephone sets were employed. the
receivers being 300 ohms each. and only
one cell Of dry battery was required with
each telephone set, The sound Of the
voice could be heard, but was not clear
but tho sound Of the key was as clear
and loud a. the sound heard IN the re-
ceiver OF wireless SET and without any
diminution In sending.
Another experiment was tried and that
was to telegraph through the body Of .
person. The main line wire was separated
and an end held IN each hand. the voice
eouid be heard ana was Understood. and
the sound OF the. key was clear and loud.
The resistance through the arms and
body represented 100000 ohrns. while that
Of only through the body was 5000 ohms.
The resistance Of a No. 8 gauge wire
long enough 10 reach around the earth
would be s2TU ohms. and 10 be able TO
telegraph through 100000 ohms. means
that Il 10 possible TO telegraph through
the ocean cablo.
DisDenaes with ReDeateFs.
"a also means that Il Is possible 70 teie-
graph eirect from New York 10 San
Francisco without repeaters. and likely
Il win be the wireless man who has the
patience 10 listen that viii accomplish the
feat. OF course, u win Be understood that
magnetic Impotence and iaakageS aionG
the line and other obstacles OF Q long
line must be taken into consideration.
What q saving OF power and copper this
meanHl
The accomplishment Of the new system
Il due 10 the fact that sound. such as
tapping on the telephone. can be heard
farther and more distinctly than the voice
and. in conjunction with closed Circuit,
such az the teiaphone system. has every
advantage over the mako-and-break orr
cult system a. used By telegraph CON-
painless the outcome being the ara Of thu
new telegraph system By the perfection
OF the new instrument 20 important for
the purpose
BY the new system the telegraph CON-
panies are enabled 10 place their wlrea
underground and to uss them for tele-
phoning The saving Of cost OF copper
and maintenance II apparent Therefore
the new system has come to stay and
must supplant the old system whenever
an advantage Il 20 be gained.
With the new system astounding 70
suits have bean achieved IN telegraph
ing through many miles OF underground
telephone lines, the sizes OF the wires
varying from = No. 10 TO 20 gauge
sonething that cannot be done by ths
inserted electric telegraph system fol
IreAsonS hsFeinafter mentioned.
Obviously, theIS cannot be any objeo
ton % the use Of the new Instrument
ON the telephone. after the fact OF III
usefulness and adaptabIlity has beef
asosrtains1. Being mechanical. II doe
not interfere with the circuit, as II 4
not inserted in any circuit. neither doe
II interfere by induction with lines ruI
ming parallel IL Is light ana oompae
and IN no Way can Il be In the road o
or = hindranoa 70 tha user for botl
telephoning and tslegraphing.
works 10th Ways.
, The question might arise what
J the use OF telegraphing when we ca
talk over the telephonsG The rspl,
, Is that the line can be used Tor tels
! graphing when telegraphins is required
, symbols can be heard farther and ar
| audible when the voice cannot be un
, derstOod. the signals being definite Will
} the sound OF the voice IL updulatins
, Conversation on telephone can b a.
sisted BY telesraphing Words not under
, stood. and telegraphing can be Assiste
4 by conversation-thus saving time.
4 When written messages are require
more business can be transacted by tols
lcraphinR a. n clean rcDy can ~ ono
4 be produced. while IN taking message
In writing over telephone much time
4 lost In rewriting and correcting word
. al first not understood.
The question might also arise; WI
4 An ordinary telegraph set likewise u
/, cured 70 the telephone. would not q
the same thing7' In the first place. n
new instrument h small and light an
when attached 20 q telephone u not /
, the road Of and q hindrance 70 bein