The combination with transmitting coil
25 conductor connected ground and an
elevated terminal respectively, and means for
producing electrical currents oscillations
in the same, receiving coil conductor
similarly connected ground and ele-
30 yated terminal, the said coil coils having
a length equal one-quarter the wave
length the disturbance propagated, set
forth.
iS The combination with transmitting in
strument comprising electrical trans
former, having its secondary connected to
ground and elevated terminal respec
tively, receiving instrument comprising
2o transformer, having its primary similarly
connected ground and elevated ter
minal, the receiving-coil being synchronized
with that the transmitter, set forth.
8. The combination with transmitting coil
or conductor connected ground and ele
vated terminal respectively, and means for
io producing electrical currents oscillations
in the same, receiving coil conductor
similarly connected ground and ele
vated terminal and synchronized with the
transmitting coil conductor, set forth.
9.649,621
ing device connected with its secondary, the
capacity and inductance the secondary of
the transmitting and primary the receiv
ing instruments having such values se-
5 cure synchronism with the impressed oscilla
tions, set forth.
NIKOLA TESLA. The combination with transmitting coil
or conductor connected ground and 35
elevated terminal respectively, and adapted
to cause the propagation currents oscil
lations conduction through the natural
medium, receiving-circuit similarly con
nected ground and elevated termi- 40
nal, and capacity and inductance such
that its period vibration the same that
of the transmitter, set forth. The combination with transmitting 50
coil conductor connected ground and to
an elevated terminal respectively receiv
ing-circuit having period vibration cor
responding that the transmitting-circuit
and similarly connected ground and 55
elevated terminal and arranged that the
elevated terminal charged the highest
potential developed the circuit, set forth.
5.
7.
Witnesses:
P e,
M.
10. The transmitting receiving circuit
herein described, connected ground and 45
an elevated terminal respectively, and ar
ranged such manner that the elevated ter
minal charged the maximum potential
developed the circuit, set forth
