connect one its ter
minals insulated metal plate other
conducting body exposed the rajrs or
streams radiant matter. Fur
thermore, the surface should clean and 85
preferably highly polished amalgamated. The insulated plate con
ducting body should present large sur
face practicable the rays streams 80
matter, having ascertained that the amount
of energy conveyed per unit time is
under otherwise identical conditions propor-
tionatetotheareaexposedjornearlyso.
35 present application based upon dis
covery which have made that when rays or
radiations the above kind are permitted
to fall upon insulated conducting body
connected one the terminals con-
40 denser, while the other terminal the same
is made independent means receive or
to carry away electricity, current flows into
the condenser long the insulated body
is exposed the rays, and under the cbndi-
45 tions hereinafter specified indefinite ac
cumulation electrical energy the con
denser takes place. electricity, the discharge being particu
larly noticeable when the conductor upon
which the rays impinge negatively electri
fied.
SPECIFICATION forming part Letters Patent No.
In practice have found that the best results 70
are obtained with condensers treated the
manner described patent granted me
February23, 1897, No. very impor
tant,particularly view the fact fhatelec- 60
trical energy generally supplied very -
slow rate the condenser, construct ‘the
same with the greatest care. simple way of
supplying positive negative electricity to
the terminal connect the same either 95
an insulated conductor, supported some
height the atmosphere, grounded
conductor, the former, well known, fur
nishing positive and the latter negative elec
tricity.
The second terminal ármature the con
denser may connected one the poles
of battery otheg source electricity or
to any conducting' body object whatever 90
.such properties conditioned that its
means electricity the required sign will be
supplied the terminal. This energy after suit
able time interval, during which the rays are
allowed act, may manifest itself pow-
50 erful discharge, which may utilized for
the operation orcontrol mechanical elec
trical devices rendered useful many
other ways.nited States Patent Office.quality mica dielectric, tak
ing every possible precaution insulating 65. These radiations are generally consid
ered ether vibrations extremelysmall
20 wave lengths, and explanation the phe
nomena noted has been assumed some
authorities that they ionize render con
ducting the atmosphere through which they
are propagated. Obviouslythe
above precautions should the more rigor
ously observed the slower the rate charg- 75
ing and the smaller the time interval during
which the energy allowed accumulate in
the condenser.
It well known that certain radiations—
such those ultra-violet light, cathodic,
■ Roentgen rays, the like—possess the prop
erty charging and discharging conductors
.
the armatures, that the instrument may
withstand great electrical pressures without
leaking and may leave perceptible electri
fication when discharging instantaneously.
NIKOLA TESLA, NEW YORK, Y.
To all whom concern:
Be known that acitizen
of the United States, residing the borough
of Manhattan, the city, county, and State
5 New York, have invented certain new and
useful Improvements Methods Utilizing
Radiant Energy, which the following a
specification, reference being had the draw-
ings accompanying and forming part the
io same. 8erial No. own experiments and
25 observations, however, lead conclu
sions more accord with the theory hereto
fore advanced that sources snch
radiant energy throw off with great velocity
minute particles matter which are strongly
30 electrified, and therefore capable charging
an electrical conductor, even not may
at any rate discharge electrified conduc
tor either carrying off bodily its charge or
otherwise.
M .
Iu applying discovery provide con
denser, preferably considerable electro- 55
static capacity, and. use prefer
ence the best. 5-2,154. 685,958, dated November 5,1901. 577,671. the rays supposed streams 10c
matter generally convey positive charge to
the firstcondenser-terminal,which connect
e r
f.
Application filedMarch 21,1901
