Rock Island Argus. (Rock Island, Ill.) 1893-1920, 1904-06-04


nuity is shown by striking examples
Of the application of scientific princi-
! PIES to useful commercial purposes III
the exhibit of the United States pat
ent office at the worlds fair. This
1 wonderful exhibit occupies a large
section Of the interior department dis
play in the government building and Is
attracting great attention from yisi-
tors. Actual operating inventors show
| the latest gymnastics Of inventive
genius-from wireless telegraphy to
| reproducing handwriting by tele-
graph.
BY the use Of Gray's telauto@TaPh
one may sir in New York Office and
write letter in ones own hand. by
| telegraph. to a friend in 81. Louis. or
any other city. Not only Is hand
writing reproduced by this wonderful!
| machine. but also drawings. Think
what boon this Invention is To the
war artist at the front in the far east.
He may sketch a picture Of fierce
engagement from the scene of battle.
and at the same time every move of
his pencil is being recorded thousands
of miles away in time to catch an edi-
ton This machine holds place in
the patent Office exhibit. where editors
may freely use it, writing anything
they like. see it reproduced simultan-
eously in the receiving machine. and
carry away with them specimens Of
their telcgraphic chirography.
The telartograph is one of many
wonderful inventions that are in OPP
Grafton in this interesting exhibit.
There is the teIegraphOne. a machine
which makes telcphoning pleasure.
as it does away with many eNasper-
ating delays. When one calls up a
person on the phone and finds he -
out. with the aid of this machine one
may talk his message and it is re
corded on the other end. When the
person for whom the message Il in
tended returns he may take down
the receiver. start the machine and
listen to the message that was spoken
maybe hours before.
by the telcgraphonc. speeches made
i'm congress may be recorded at sever
al different distant points at the same
time and then repeated in the natural
voice Of the speaker. In the working
of this machine the sound waves are
recorded on 4 travelling steel wire.
The wire contacts with the recording
magnet. which i in circuit with the
transmitting telephone. Each sound
wave uttered at the transmitter caus
eS q distinct current to traverse the |
coils of the magnet. and the latter to |
locally magnetic the steel band or !
wire. The ma@nctizcd portions of the |
band CORES pond accurately with the |
: ound waves. both in frequency and |
intensity. There fore. when these mag
netiZed portions are carried past the
poles OF other magnets in circuit with |
I telephone receivers. currents CORES
pending with those magnetized pOr-
lions. and therefore with the original
sound waves. are generated in the re-
ceiving circuits by induction. These
inductei currents reproduce the origi-
nal speech. in each separate telephone
receiver. In all cases the original re-
cord may be obliteratcd and the wire
used ever and over again by passing
he magnetiZed wire between the poles
If 4 strong obliterating magnet. Many
or even thousands. Of repro
luctions of the original speech may
De- obtained from the same record.
One portion of the exhibit space *
devoted to demonstrations of wireless
Biography. and visitors may send
wireless messages from the patent Of
ice station through the walls of the
building to other points on the
grounds.
Color printing. an invention for imi-
ating colOrs of nature in printing by
mixing" colors. Is demonstrated. and
pecimeHs of the work are distributed
rec 10 the visitors. y press is con-
inually in operation turning out these
pictures. In this method one trans
parent j. transposed upon another.
'rimSon. red. yellow or blue. in sepa-
ate impressions.
Color photography is eXemplified
With startling realism. \ photograph
IF a table. ON which are placed a glass
IF beer a cheese sandwich, tobacco
1oN. pipe and many other articles, i
shown with the objects in their ma
ural color and in solid relief. One
he could reach out and
IUcuch his thirst with that glass of
Deer. In producing these photographs
We supcrposed photographs of the