Daily press. [volume] (Newport News, Va.) 1896-current, 1906-11-18

receiver, and antenna. A highly mag
netized receiver affected by the nier-
curry tube, plays an important part
also.
Works Well Outdoors.
Mr.. Granger first intended his in.
vention for use in houses. hotels
ana Office buildings. but successful
experiments proved that II could be
employed out Of doors as well. Only
the other day he telephoncd from
Newark to Barnardsvillc, a distance
OF twenty miles, most successfully.
He is now making arrangements for
a station in New York and one in
Trenton n. J., ana expects to make
Il long distance test between the
two cities in ten days or fort.
night.
Establishing The telephone in a 10
TEL, FOR instance, il very simple A
central is put up in the ordinary
way In charge of an operator. When
Il guest wishes to uSc the instrument
he proceeds in The usual way. 70
yet the Desired number the operate.
simply mallipulatcY the"linder," which
Is like Il lever on n motor box, over
tho switchboard, which il tuned"
for the particular station desired.
These Instruments are so tuned"
that no one can break in on the
conversation. The number of words
which i, is possible to transmit Is
limited only by the ability of thu,
person talking. The instrumental
arc simple and need PRACTICALLY na
adjusting after once being installed.
Can Talk Twenty Miles Away.
rho mechanism is so hrlicatcly
constructed that If u revolver were
fired IN Il room containing the tel.
ophonc tho he'll NJ the switchboard
would iniucd!ntcly ring, and would
not cease til the instrument in the
room hal been shut of The results
OF Nj. NTan.er's experiments ~. far
hare been highly satisfactory Con
VIBRATIONS over his Invention has
been heard II distance of eighteen
miles rs clearly us is possible over
~ ordinary instrument connected
by wires.
The distance n message can be-
sent is controlled by The amount or
power" In the tube. This power
which Is nc secret OF the inventi.t;
has to he measured most accurately.
W "'"N" VI WV iil'ic ''ilfpWS INC
instrument ont OF order when mess.
ages are to he sent long distances.
An instrnmcnt h6wever. Ina, is ad-
jns'cd for af~radius Of NIFTY miles
can be ysEd satisfactorily Within
thhi cirGM. but not beyond that.
Results are instantaneous.
TN timing Of The instrument also
DrtTcnta any hut tho persons con
[Hcrned hearing tie nvcrsation5.
The wireless telcph0. $50 excels
In point oil rapid efficiency even the
wireless telegraph, for the instant
the operator at the transmttcr
speaks his words are reproduced at
| the other end, rs in wire telephone
| rcluirng no time to decipher 1t.
The possibilities OF the wireless
telephone are practically limlt!css. It's
value 10 an army in the time Of war
would be almost ines,lmablc. Mr..
Changers invention Is SO constructed
that an entire outfit within the range
OF fifty or hundred mile scculd be
Carried by n man without any trouble.
Good for the Army.
A scout, for instance, could pack the
telephone In Il case nc larger than
would be necessary for an ordinary
camera. Getting sight of the enemy
ho could instantly telephone his in
formation to the main body CT the
army There would be no danger
Of having tho message stolen III
| transmission, as the instrument would
be tuned" so as to avoid this. Mem
c.war could also be equipped with
the apparatus
Mr.. Granger believes his method
eventually Will take the place Of
lordinary telephone circuits, and he
| says it will be particularly valuable
Mt sea in preventing accidents IN
| foGs &c. Ono of its most useful
spheres Is It's application to vessels
| IN harbor. Under such conditions the
wireless telegraph Is not advantage
ous, rs II requires IN operator, and
an experienced one, to handle 1t,
ana delays are frequent. On the
other hand the wireless telephone is
a first hand instrument, and may bn
applied to any vessel at n compara-
lively small cost. The instrument
can also he installed In house
for $40, and the cost of operating
It Is very small.