The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1859-02-06
The Electro-Magnetic Telegraph OF Morse
The Printing Telegraphs OF House and
Hughes.

Professor Stone delivered the last Of his series Of lee
lures embracing the above subject last night at the Poly
technic Institute, Brooklyn. The occupied "
its fullest capacity by auditory consisting mostly Of tho
youth Of that city, who either from practical experience
or an interest in the subject DESTROYS of listening
the lecture The lecturer chiefly devoted his attention
a practical calculation Of his discourse, which proved
highly interesting and instructive. He commenced with
few PREDATORY remarks in alluson to his previous lee
tures and said that in continuation Of his explanation Of
the different systems Of teegraphng would come back
TO his country having in his two previous lectures
travelled England and the Continent. and to some ex.
tent examined the systems Of teegraphng those coun
tries which had been already superseded by in Anne
RIGA. Very much must be said in connec-
ton with the beautiful systems of telegraphing
OF our own country, more especially with that originated
by Morse after bis trip to Europe and his return board
the bark Sally OF the difficulties through which he had
passed, and of his subsequent success he should not
speak for being matter of history they could be read by
ALL lie then proceeded to describe the instrument con
struced by Morse and exhibited by that distinguished in
dividua at The New York University. He would speak of
as striking contrast to those now in use He pointed
out on diagram representation OF this instrument,
which six eight feet in height and bearing upon 1t
the electro magnetic pendulum attached TO armture
which moved n 'front.' ns Top WORK carrying strap of
position and at another distant station might placed
what was called the composing apparatus" The
next portion called the indicating apparatus
and the next the sport roln Then there were two
wheels carrying endless point, and also what the
printer called his "stick which the types were put
The top placed in the port roll aud the stick of type
was made to be joined in end Of tho lever by
the endless point the Wheel end Of the lever
then became elevated and having completed the circuit
OF the battery the passing through the electro
magnetic wires would work the magnet, thus giving
motion TO the pendulum. Outside Of the magnet was
pencil which made to come in contact with the paper
If the armiture still the paper would describe
straight line; If it moved would be drawn in 'front.' and
would describe one part Of angle. The characters
ers That apparatus had been put In operation for dis
lance Of some seven miles at the time Of its exhibition
in New York in 1885. II succeeded very well but some
difficulty attended IL because the battery power could not
be made sufficient 10 incitc the magnet The lecturer
next proceeded 10 cucdate Morses relay and said
that relays answered all the purposes extended tee
graphic route established at proper intervals The next
figure was called the receiving magnet" II consisted
OF long coll and was so arranged that the battery
current passed right through IT, The next was the
clock, or sounder, which worked upon the paper
However, In large cities like New York, where
there much business TO do they read by sounds
and not by characters. He then described the register
and how the receiving magnet the electro and
the other apparatus combined contributed TO out the
work Re gave aful description Of the Boston FIRE alarms
used in teegraphs Baincs' "cal" very interesting
ne being among the first attempts at using the electro.
magnetism in making musical sounds, by way of making
call Those sounds were made upon plate Of glass
As the circuit was closed by the battery the sound was
made This alarm was brought into use by way OF
"burgars alarm" The instant the magnet touched the
electro magnet the armture directed, and then we
had the constant ringing the circuit being closed lie had
only 10 open the circuit and the ringing ceased If that
alarm was situated In PERSONS bedroom the raising OF
window the opening OF shutter door In any part OF
the house would complete the circuit OF the battery and
cause the bells TO ring all over the house skfu opera
tors however, needed no such alarm that The mere
clicking OF the instrument would instantly direct their
attention and two three checks would Tell
them at 10 whom the message should he
directed and what about In connection with the
subject OF electro magnetism he would say that Il might
be made 10 raise great number OF pounds. They might
with the small instrument he held in his hand raise from
four to i've hundred pounds, which more than me.
dunn battery could DO They had been made 10 rase several
tons weight Having described the axla force he pro-
cccded 70 give practical calculation OF voltac electricity
described the greet power which contained IN Ruben
KsIn's Induction coil the shock from which WINS 10 for
cbc he said rs 20 cause instant death the person who
came in contact with IT, lie glanced At the printing telc