, 1874-07-12
Results Of Mr. Elisha Gray's
Electrical Investigations.
lo Is Able to Telegraph Music from
Paris to Chicago.
Experiments with His Newly-In-
vented Telephone.
Practical Bearings of His Re-
searches.
Twenty Messages May Be Sent Over
One Wire at Once.

1nEliA3 NEooa9Co "tAJ wv ~o'N
One Wire at Once.
The Theory of Musical Teleg
raphy.
Tho sciences Of electric telegraphy, thoug
from the results already achieved one NIGH
suppose tho limits OF its power we're we'll
nigh exhausted. is considered By those VIII
have made it life study, and are thus Intimate
II acquainted with its possibilities, to DO still II
its infancy. It might be supposed that, with th
wonderful results which hare crowned the suc.
oessige experiments aud Inventions of eectri
clans since the subtle power OF electricity wai
first used as q meaos OF transmission. they
would rest content, and point to what
their results had already achieved Us al answer
to any unreasonable individual who might pre-
s,11ue to demand search for further develop
1neuts and an improvement upon the sy6tems OF
telegraphy at present in vogue. In this age.
however, the scientists lore of research, and hls
determination to probe to the bottom any prob
lem whose solution promises either to add to the
Light OF science or to prove Of practical utility to
mankind, is unceasing and fixed The old and
new lemisphe1es are no sooner made one with
tho throb OF electric pulae g. 900 miles in length
than the ideh Of girdung the earth is declded
upon, and. while this gigantic scheme is ap-
proachiag completion, the electrician looks for
new fields for his fertile and Unsuitable brain.
With a proper devotion the electrician RECEIVERS
the power he utilizes rs one which Call be ap-
piled in the promotion OF all branches of tho
arts and sciences, the only thing requisite being
the discovery Of the peculiar way III which it is
to be applied to- produce the result required.
Sincs the application Of electric-.elegraphy to
trans-ocean service the great probiom has been
the
1SCELAsING THN CAPACITY OF THE SINGLE WIRE
and the consequent cheapening Of the rates to
the public. The prospect for the accomplish
nent Of either OF these results has been any
thing but promising. Several discoveries have
been made, which, however, have been more re-
markanie rs evidences Of their inventors genius
than as possessing any very practical adyan-
tages.
The latest attempt at increasing the capacity
OF single telegraphlo wire has been made by a
Chicago electrician. Mr. Elisha Gray, Superin-
tendent Of the Western Electric Manufacturing
Company, and his invention is 30 novel, SO bold
3 step out Of the beaten track into new and
almost lGmitable branch OF electric science, that
the following description OF the invention, or dis
ooTery, is placed before our readers. Mr. Gray's
invention is nothing more or less than COM
bined application Of certain hitherto und1s-
covered electrical and certain already discoy-
cred acoustic principles. With these properly
applied and controlled he processes to be able to
TRANSMIT SOUND OF AMI DESIRED PITCH
along telegtaphio wire with ns much accuracy
Us the operator sends an ordinary message. In
ehort. sitting in Chicago he can send note do"
to New York, IRE" to Philadelphia, sMi" to
New Orleans. and 80 forth. or, if necessary, on
the Fourth Of July in each year. us III amlablo |
gr sting to john Bull, as represented by
the P1vy Council in session at London. |
he could resale their ears with the
soul-inspiring melody OF Yankee Doodle played /
in Washington BY the President, Gen. Butler, |
Tie Secretary Of the War Department, OF any |
other appropriate person whose musical educa-
ton h1d MOI been in youth neglected.
MORE WONDERFUL STILL,
Mr. Gray claims that it is quite possible and
the performers Of which will play lhe1r
parts respectively in New York, New Orleans
San Francisco, aud Duluth. With view to
piacIng before its readers some idea Of the H.
ture OF this new wonder a TRIBUNE reporter cali
cd yesterday upon M1. Gray, tbs inventor, at the
E'o1 kshop on hinzia street Of tho Western Elec-
trc Manufacturing Company. Mr. Gray at once
suhn,1tted to an interview as follows:
WHAT Is IT?
Reporter-Mr. Gray, believe that Won have
perfected an invention which promises to open
up new era in telegraphing. In the leEest
words what do you call it,
Mr. Gray-Au electrical apparatus for trans
Mtting musical sounds OF any desired pitch tele-
graphically.
Eeporter-what is the object Of your appa-
ratus? FF-
Mr.. Gray-1ts object is the transmission of
musical sound from one place to another by
Ineans OF an electric current, in such
q manner that the pitch OF the sound received
may be determined or controlled at it's destlua-
.ioo BY means employed for that purpose at the
place from which tho sound is sent, and to that
9nd my invention consists in producing the
sound by means Of an electric current operating
n connection with one or more vibrating pieces
lf1Snged to Interrupt the circuit by their vibra-
1ons. and In connection with .ound-piece for
'oeeiving or reproducing the pitch.
Responsibilities am mistaken, sound has
4ready been transmitted by electric force
wHAT FAD PRry1ousLY BEEN DONE.
Mr. trny-l am aware that sound has been |
,1oduced By this Ieans, but this sound, 50 lar
's sm aware, has not been strictly transmitted
7: reproduced heretofore by means OF an elec-
nc current: but has resulted from the striking /
ogetfer OF certain parts OF the instrument opcr-
tied upon. the concussion at one instrument be-
uE simultaneous. or nearly 30, with that at the
.tA<As q Ak4OAoIoHa las sQuB De30 produced at |
listant instrument, ano the pitch determined bY
he parts there brought together,-for instance,
ha Morse apparatus at present n use,
Heporter- Then the point OF your invention is |
no reproduction Of the same note ut DISTANCE |
Ar. Gray-Exactly.
EXPERIMENTS KADE
:. heposter-Can musical sound in it's pri-s-
me purity be transmitted over an electrical wire
IT any length? "-~o
Nj: Gray| have made an experiment. which
me That musical sound can bo trans-
nsted ! o0o mlles without losing any of its cor
ectue6s Of tone.
heportes-Wiil it not lose greatly in volume in
uch distance3
Mr. Gray-That depends upon the na1ure Of
be receiver, Of which more hereafter. lis
,oinme may bs greater or less accordingly than
nae OF the o1iginal sound transmitted.
TIE APPARATUS.
hsporter-What apparatus DO you employ in !
'fodnc1ng these wonderful results 1
!, Mr. Giay-The sending instrument is IN
teetI1eal organ, of which every reed is SO con-
'saus'eo os ~ to length and thickness az to give
ha ~. Isn T. n9.e OF given musical glitch. When
"40 hey IL Q6p1cteed c3n4na 49,.