The segmental disk and vanes are contained
within close insulated box case mount- 80
ed the bearing the generator, any
other proper way, but capable of
angular adjustment around the shaft. secure this re-
20 suit, employ some means for intermittently
charging the condenser and for discharging
it through the circuit low self-induction;
and among the means which have hereto
fore employed for this purpose was me-
25 chanical contact device which controlled both
the charging and the discharge circuit in
such manner that the condenser was alter
nately charged the former and discharged
into the latter. this'figure
represents any source alternating current
.extend metallic terminal plugs with
their ends the plane the conducting
segmental disk and adjustable radially to
ward and from the edges the segments.
Referring the drawings, which illustrate
in its preferred form the improvement above
50 referred to, Figure view, partly ele
vation and partly section, generator
arranged give alternating current with
the circuit-controller mounted its shaft.
NIKOLA TESLA, NEW YORK, Y.
ApplicationfiledJuly9,1896. and are sectional views of
a modified form circuit-controller. section the controller Fig.
In carrying out present improvement ,
employ circuit-controller containing two
terminals sets terminals movable with
respect each other into and out prox-
40 imity, and provide means whereby the in
tervals between the periods close approxi
mation, during which the spark passes, may
be adjusted that when used system
supplied source alternating current
45 the periods make and break maybe timed
with reference phase the current wave
or impulse.)
To all whom concern:
Be known that Nikola Tesla, citi
zen the United States, residing New
York, the county and State New York,
5 have invented certain new and useful Im
provements Apparatus for Producing Elec
trical Currents High Frequency, which
the followingis specification, reference be
ing had the drawings accompanying and
io forming part the same.
This invention improvement ap
paratus for producing electrical currents of
high frequency accordance with the gen
eral plan heretofore invented and practiced
15 and based upon the principle charg
ing condenser circuit possessing capacity
and discharging the same through circuit
of low self-induction, that rapid electrical
oscillations are obtained. use circuit-controller special character
in which the continuity the paths for the
current established intervals the pas-
3 sage sparks across dielectric. The
latter maybe adjusted bythis rod, and when
in proper position may held therein by
screwing the rod down into depression in
the sleeve bearing, shown Fig. 568,180, dated September . Its construction detail follows:
D metal plate with central hub D',which
is keyed clamped the shaft The plate 76
is formed with segmental extensions corre
sponding, number the waves cur
rent which the generator delivers.
A designates Fig. To
facilitate such adjustment, screw-rod F',
provided with knob handle, shown 85
passing through the wall the box. 598,552. 100
This similar devices are employed carry
out the invention above referred the
,manner illustrated Fig. These
segments are:preferably cut away, leaving
only rims frames, one the radial sidés 75
of which are ,secured bent'metal plates E,
which serve vanes maintain circula
tion air when the device operation.
30 present improvement consists ap-
pai’atus for effecting the same result'by the
. SerialN
o.
The circuit-controller mounted part
on extension the shaft the gener- 65
ator, and part the frame the same,
or stationary sleeve surrounding the
shaft. Fig. Air- 90
passages are provided opposite ends
of the box, through which air maintained
in circulation the action the vanes. 1
on line a;ccof said figure.
Through the sides the box and through
insulating-gaskets IT, when the material 95
the box not sufficiently good insulator,
. (N
om
odel.
SPECIFICATION form ing part Letters atent No.
Fig. diagram 55
illustrating the system apparatus a
whole. Figs.
APPARATUS FOR PRODUCING ELECTRICAL CURRENTS HIGH FREQUENCY.. generator having
a commutator and brushes bearing 60
thereon, and also collecting-rings from
which alternating current taken by
brushes the well-understood manner
