Arizona republican., 1907-12-29
IELtGRAPhONE IS
IN PRACTICAL USE
Entire Southern Pacific System is
Equipped With the Device Both in
Offices and on Most Trains.

h The utilizing OF new inventions To
! facilitate modern business is so rapid
\ that very few people can actually keeI
I up with what is being employed in the
. way of mechanical devices. Many
/ readers of The Republican have during
, the past few months seen more or less
IN its columns about the telegraphone.
! Few of them perhaps are aware of the
/ fact that the Southern Pacific system
{ is already equipped with them and
! they are in daily use.
This will be no effort at explaining
I the mechanism. but is merely intended
: to point out d few features of the in
strument, which is valuable accessory
to both the telegraph and the tele-
I phone, especially in railroad work. one
| Of the things that makes the instru-
ment peculiarly valuable. is that it,
messages are carried on currents with
which il is connected by induction.
while telegraph messages are not. The
: office instrument is a box very much
resembling a small talking machine
and it is connected to the telegraph
wires i'm an office the same as the
/ telegraph key is. On top of the box
I is a receiver and transmitter the same
as employed in an office telephone ON
: top of the box also is an open crate.
( 10 which a small megaphone trumpet
tfnay be attached if desirable Through
this CRATE comes the voice of the per-
son who makes the call If desirable
/ or if the party to be called is out Of
/ the room the signal is given on a
I buzzer. each instrument having Il diff
I ferent signal
! If A desires TO call up r i'm his office
. ten miles away. he merely takes down
| the receiver as IN an ordinary tele-
| phone and calls r by name. or other
wise. If b is in his office he will hear
his name called by the megaphone or
{ through the nickle CRATE if there be
: no trumpet attached. If y should be
out of hearing the signal is given with
. the buzzer which he can hear as far
as a telephone bell After that the
/ conversation is with the human voice
the same as the telephone All this
may be going on while the same wires
are in use for telegraphng
/ The instrument is peculiarly valu-
able in railroad work and i'm this too
comes in the greatest value of the in
duction feature. For use between sta
tons. or at any point where person
might be clear awav from telegraph
or telephone connections. but was still
near telegraph wire. he could get in
TO communication With the world at
once. and that without anv knowledge
OF Telegram hing. The instrument used
! is very similar 10 the office machine
! only there is little reel with a coil
1 of wire on it and a hook at the end
with a long pole. either I'm one piece
or iointed like a fancy fish pole. used
TO throw the hook over the wire to he
tapped.
Just throw the hook over any old
telegraph wire on system using the
telesraphones. and call the man desir-
ed. up the road or down the road. no
difference which. All the telegraphones
on the line will get the signal but only
the man wanted needs to answer The
value of the induction feature to that
one does not need to know whfrr is
the wire leading into the office desir-
ed to be communicated with. The.
NAV be a dozen wires and tho telegra-
phone may be attached to any one of
them. II it is not the direct wire tho
message will spread over tho others.
also and find its way to the right
place. 1t is a long distance instru-
ment but how long the writer never
was informed.