The Washington times. [volume] (Washington [D.C.]) 1902-1939, 1903-12-06

or signaling between distant points can
be carried on by induction without the
use Of wires connecting such distant
points This discovery Is especially APP
piicable to telegraphing across bodies
of water. thus avoiding the use Of sub
marine cables. or for communicating be-
tween vessels at sea. OF between vessels
at seat and points on land; but IL IS also
applicable to electric communication be-
tween distant points on land. il being
necessary, however, on land with the
exception Of communication over open
prairie) to increase the elevation IN or
der TO reduce to the minimum the induc-
ton absorbing effect OF houses. trees.
and elevations IN the land itself.
First Idea of Crossing Sea.
AT sea. from an elevation of 100 feet.
can communicate electrically great
distance. and since this elevation. or
one sufficiently high. can be had by
utilizing the nasts of ships. signals can
be sent and received between ships sep
arated a considerable distance. and by
repeating the signals from ship 70 ship
communication can be established be-
tween points at any distance apart or
across the largest seas and even oceans
The collision of ships in fogs can be
prevented by this character OF signal
ing, by the use OF which. also, the safety
of ship in approaching a dangerous
coast in foggy weather can be assured
Description Of Device.
In communicating between points on
/ land poles Of great height can be used
or captive balloons. At these elevated
points. whether upon the masts OF
I
ing-surfaces Of metal or other conductor
! OF electricity are located Each con-
| densing-surface is connected with earth
by an electrical eonductJEg wire. On
land this earth connectfo4 would be one
] Of usual character in teiegraphy. At
sea the wire would run to one or more
metal plates on the bottom OF the vessel
where the earth connection would be
made with the water. the high-resist-
ance secondary circuit between the con-
/ densing-surfsce and The ground. The
/ primary circuit Of the induction coil M
cludes a battery and device for trans
hitting signals. which may be revolY-
/ ing circuit-breaker operated continually
! by a motor Of any suitable kind. either
! electrical or mechanical, and key nor
mally short-circuiting the circuit-5reak-
! er or secondary coil.
How II Is Done.
For receiving signals locate in said
/ circuit between the condensing-surf
I and the ground a diaphragm-soun
/ which IS preferably one OF my electro
photograph telephone-recefvers. The
| key normally short-circuiting the re-
/ volving circuit-breaker. 10 impulses are
produced in the induction-coiI until the
| KEY is depressed when z large mum her
of impulses are produced in primary,
and by means Of The secondary. CORE
spending impulses or variations in ten
sion are produced at the elevated con-
! densing- surface. producing thereat eler-
I trostatic impulses. These electrostatic
/ impulses are transmitted inductively TO
| the elevated condensing-s surface at the
( distant point and are made audible BY
/ the electromagnetic connected in
the ground-circuit with such distant
/ condensing-surface- The Intervening
! body of air forms the dielectric Of the
/ condenser, the cOndensing-surfac OF
J which are connected by the earth The
/ effect is a circuit in which Is inter-
posed a condenser formed of distantIy-
separated and elevated condensing-sur-
faces with the intervening air as a
| dielectric'
Mr.. Edison dropped his experiments in
wireless biography to pursue his work
on the problem Of electric light
ing. after he had succeeded in estaB-
| fishing the truth OF his assertions and
had sent messages a distance of three
| miles without wires. He later trans
! ferred his patents TO Marconi. who
/ combined them with his own system.
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