The Donaldsonville chief., 1922-11-18
TYPEWRITING BY RADIO.
Wonderful Progress Made in Adapt
ton of New Invention.

Another chapter has been added
to wonderful story of radio, says II:
A. Lane, in the November issue OF
| the Popular Mechanics Magazine. SO
many and so remarkable have. been
the adaptations of this method of
communication, that the interested
observer of the worlds progress
scarcely has the time to familiarize
himself with one mode before another
| appears. The latest achievement is
the sendinp of typewriter messages
through space. This feat has been
accomplished through the efforts of
radio experts working in conjunction
with the Navy Department, who have
thoroughly demonstrated its practl-
! cability for scout and battleplanes
| in time of war. Also radio type
writing represents added efficiency for
business methods.
To the casual onlooker the sending
apparatus of the outfit resembles the
ordinary commercial typewriter of
the portable kind; that is, as far as
the keyboard is concerned. The usual
radio equipment is carried on the
plane, and in addition to this, the
keyboard mechanism of the typewriter
| is installed in such manner as to
control the modulation circuit of
| the electrontube transmitter. Thus,
when letter is struck on the key
! board, an impulse is sent out apd
| received at station on the ground.
The receiving station, Of course, has
| similar equipment to that on the
plane. When any particular letter
or number is depressed on the key
board of the sending apparatus, a
certain radioactive energy is released
from the -antenna of the plane and
travels through the air.
Before any station can intercept
these impulses, however, and decipher
them, it is necessary to possess the
i same delicate and complicated ap
paratus that is used on the plane.
Thus the messages are secret.
The value of invention in the
transmission of secret orders and re-
ports, during the maneuvers of an
army or fleet in war time, is thus
clearly APPARENT; no less is its etti-
|ceincy in the commercial world. Hotels
department stores, police and fire de-
partments, in short any organiza-
ton that directs large force of en-
ployes from common center, may
be benefited by another adaptation
of this machine, which operates SINH
lar to the telegraph except that the
messages are printed on tape in
stead Of appearing in code. 1t is,
in reality, a printing telegraph.
Hotels operating under the latter sys--
| tenn have an efficient method of ca
| tering to the interests of the guests
, by giving rapid service, of which the
following supposition might serve as
! an instance. .=s..s
A room occupant notifies the
switch chboard operator of his IN tentione
to leave hurriedly. The guest re-
quests that his laundry, baggage, and
mail be taken cage of, and that a
taxicab be ordered to take him to the
railroad. station. The telephone at
tendant Immediately sends message
via the printing telegraph machine.
This message is received simulta-
neously by the laundry, baggage, and
mail clerks, the cashier, taxicab stand,
and the captain of the bellboys. The
hurrying traveller descends to the
desk to pay his bill, and is extremely
gratified to find everything in readi-
ness for rapid departure.
In the meantime, the hotel man.
agement, as stated above, also de-
rives benefits from this system in
another way than merely by having
pleased the late guest. The original
message from the switchboard opera
tors machine is received by the floor
clerk, whose duty it is to see that
the vacant room is quickly made
ready, with clean linens, etc., for the
accommodation of the next guest, who
may even at that moment be i'm
patiently waiting downstairs in the
lobby for a room. Thus is the eff
cheney of the modern hotel increased.