The new North-west. [volume] (Deer Lodge, Mont.) 1869-1897, 1876-02-18

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tsndent Haskins ask Affords the Entsrtain-
n1ent.
This morning, says the last Milwaukee
WiseonsSB, a number of. electricians and
members of the press (also electricians, Of
course visited the Office of Superientend-
ent c. III. .Haskins, to see. Cor rather hear
the practical workings of new device in
the transmission of te1egraphic messages.
\ All around the room were ranged open
boxes, on which were placed little instru-.
r,ents called vibrating reeds. At the ap-
pointed time, the room was filled with a
variety OF beautiful tones, pulsating and
beating. Each box (Which appeared to be
a sounding board like the pipe to an organ
Or any wind instrument gave out q pecu-
liar sound or note, while an operator sat
near it and easily interpreted the beating
sounds and inscribed its message. There
were eight boxes, each producing differ
ent sound, and transmitting a different
message, and yet the guests were informed
that all of the messages came over one
wire, and had travelled two hundred miles.
This office was the receiving room. The
guests were then taken to the transmitting
room, and there saw the eight instruments,
an operator at each one with a scrap of
newspaper in front of linn. from which he
was picking out sentences to send over the
wire us a test. The experiment. worked to
a charm-and through the lucid explana-
tion of Mr. Haskins (and if any one can
make a mixed matter clear, he CAM the
spectators were put in possession of the
facts. The new device works as follows
HOW 1T WORKS.
At one end of the line the operator sits
with the ordinary key and another little
machile containing a vibrating reed, which
is slender metallic bar, vibrating between
two magnets at certain number of vibra-
tions per second. .--
Naturally this produces a tone-not very
distinct, but still a musical tone when the
key is opened and closed, the fluid is sent
over the line, or in it's own little circuit !;
when sent over the line it contains a mean
ing, and at the other end is an arrangement
to see what the meaning is. This is the
box and vibrating reed alluded to at the
commencement of this article. The cleo
t1icity passes through the magnets on eth
er side Of the metallic reed, producing the
same sound (for the vibrations are the
same,) made by the transmitting instru-
ment. The box, or pipe, or sounding
board, vibrates also, causing waves of air
inside, which swell and add to the tone,
making it very distinct The pulsations
are long or short-and this "long" and
S'short - is equal to "dot - and "dash -
which equals clear message to any oper-
ator.
That accounts for one message. But .
now CAN EIGHT MESSAGES
Be sent over the same wire I? AS follows !:
Each transmitting instrument has diff
ferent vibratory reed, producing different
sound, and each has a corresponding reed
at the other end of the line. The messages
arc huddled ON to the line together; they
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seeks out its counterpart, to form tone !;
if the vibration is greater or less than the
receiving reed, nothing but an indistinct
jumble, forming no real tone, is produced,
for there is no harmony of action; but
when the same vibrations come together, a
clear, full tone is produced. The operator
catches it, and thus reads what his trans
mitter, with the same number of vibra-
tions, is saying. The others pass on, and
are picked up by their appropriate vibrat-
ing reeds, producing clear sounds. Thus,
to-day, the spectators heard eight distinct
sounds. =
COMING OVER ONE WIRE. t...
7 The object Of this multipiex (for it can
be continued indefinitely, is to save ex-
pense in stringing wires. One wire will
serve evero purpose; at every station will
be a sounding box, with a yibratory reed
it will sound whenever It's brother machine
is souided-and not till then, It must be
plain that the saving in wires means the
saving of hundreds of thousands of dollars
in investment, much of which lies idle a
great portion Of the time. !
The route, to-day was from Milwaukee
to Portage and return, by way of Water
town, making a circuit Of two hundred
miles.
The invention is from the brain of Elisha
Gray, the celebrated electrician, who de-
vised the telephone. It will prove Of ines
timable worth, and will soon be put in use
here.