The Corvallis gazette. [volume] (Corvallis, Or.) 1862-1899, 1893-10-06
PRINTING BY WIRE NEXT.

AHOlO Hdo lSCShtly DGSH patent
ed printing telegraph apparatus
designed, by means OF transmit
ting device with all ordinary key
board to operate at distant station
a typewriter, typesetting ma
chine or other keyboard machine
of the usual style, each station
being provided with a similar
apparatus. This improvement has
been patented by Donald Murray
of the Sydney Morning Herald,
Sydney, New South Wales, Aus
tralia. The apparatus is designed
to use only ordinary telegraph cur
rents, capable of being relayed
and subject to all the conditions
of ordinary telegraphy; TO trans
nit eighty different characters; to
work at the highest speed permit
ted by the manual dexterity Of the
operator at the keyboard, and to
dispense with all clockwork con
trolling mechanism, synchrously
moving type wheels and other slow
and cumbersome devices.
The apparatus comprises trans
mitter, which by the depression of
key, transmits a certain combi-
nation of five short positive and
negative currents, and an inter
prefer, by the passage through
which of given combination of
positive and negative currents
spring or lever is released and
makes electrical contact, thus
energizing a particular electro
magnet which operates a certain
type key. Thirty-two transmit
ting elements connected in paral-
lei form the transmitter, and thir-
ty-two interpreting elements form
the interpreter, and these are com
brned with a shift key device, a
typewriter and a battery. The
illustration shown the writer, rep
resents the complete apparatus for
one station-the transmitter, inter
prefer, shift key mechanism and
typewriter-together with main
switch controlling the several cir
cults, a galvanometer which indi-
Gates whether or not a current is
passing through the main line, and
signal bell.
The transmitter has a series of
keys, each key consisting of a rod
operating a peculiarly constructed
pole changer, and comprises a
commutator having one side
parallel rows of stationary contacts
connected in parallel with the
line, and having portion Of the
connections crossed, the commu-
tator having its top surface IN
clined at right angles to the incli-
nation of the top surface, a key
sliding adjacent to the commuta-
tor, and contact block having a
spring. connection with the key
carrying contacts. adapted to con-
meet with source Of electricity,
the contact block being arranged
to move downward ON one side..of
the commutator, and to slide in
ward and move upward SO as to
make contact with the contacts of
conmutator. The Interpreter COM
prises a series Of electro magnets
adapted to connect with a line,
circuit closing and swinging quad
rants adjacent to the electro mag
nets, and adapted when released
to close the circuit through mech
anism for printing a character or
operating a key of a key board
machine, each quadrant having a
series of teeth in a different COM
bination from the teeth of any
other quadrant in the series.
Swinging dotents adapted to be
actuated by the magnets engage
the teeth of the quadrants, and
electrically and automatically 70.
tated shafts adapted to be set in
motion by the closing of the circuit
in which the quadrants are ar
ranged carry mechanism to return
the quadrants to locked position.
One of the transmitter keys oper-
ates the space key of the typewriter
and three other transmitter keys
operate the shift key mechanism,
shifting the capitals, lowercase or
figures. When the paper carriage
of the typewriter comes to the end
of line it may be returned by
the attendant at the receiving sta
ton or by an automatic mechan
ism provided for this purpose.
The galvanometer on the main
line at each station indicates when
current is passing. When the
instruments are not in use the