75
What claim is—
1. 464,667, dated December . These lat
ter are designated and and are con
nected, respectively, terminals and E,
which pass out through the sides the case.
SPECIFICATION forming part Letters Patent No.
In the accompanying drawings, Figure is
a section condenser constructed ac
cordance with invention and having sta
tionary plates, and Fig.356.
NIKOLA TESLA, NEW YORK, Y. electric condenser composed plates
or armatures immersed oil.
2.
I have found that insulating material such
as glass, mica, and, general, those bodies
20 which possess the highest specific inductive
capacity are inferior insulators such
devices when currents the kind described
are employed those possessing high insu
lating power, together with smaller specific
25 inductive capacity, and have also found that
it very desirable excludeall gaseous mat
ter from the apparatus, any access the
same the electrified surfaces, order to
prevent heating molecular bombardment
30 and the loss injury consequent thereon. 50
The plates ordinarily are separated strips
of porous insulating material which are
used merely for the purpose maintaining
them position. (H
om
odel.
ELECTRICAL CONDENSER.
35 special construction the condenser is
necessary demonstration the inven
tion; but the plan admits particular con
struction condenser, which the distance
between the plates adj ustable, and which
40 take advantage.401. I
have found that may accomplish these re
sults and produce highly efficient and reliable
condensers using oil the dielectric, and
in this invention resides. SerialH
o. 65
It well known that oils possess insulating-
properties, and has been common prac
tice interpose body oil between two
conductors for purposes insulation; but I
have discovered peculiar properties oils 70
which render them very valuable this par
ticular form device, their employment in
which has never heretofore and, far I
am aware, been regard necessary even
desirable.
The subject present application a
i new and improved electrical condenser con
structed with view obviating certain de
fects which have observed exist the or
dinary forms such apparatus when em
ployed the system devised pro-
15 ducing light and other effects means of
currents high frequency and high poten
tial.
ApplicationfiledAugust 1,1891.
NIKOLA TESLA. .
In many cases desirable vary ad
just the capacity condenser, and this I
provide for securing the plates adjust- 60
able supports—as, for example, rods II—
passing through stuffing-boxes the sides
of the case and furnished with nuts the
ends the rods being threaded for engage
ment with the nuts. 45
I use any suitable box receptacle to
contain the plates armatures.nited States Patent Office.
. similar view of
a condenser with adjustable plates.)
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
provement Electrical Condensers, which
the following specification, reference be
ing had the accompanying drawings.
Witnesses:
P arker Page,
Marcella Tracy. electrical condenser composed of
plates armatures adjustable with respect 80
to one another and immersed oil. The space within the can
is filled with oil Such condenser will 55
prove highly efficient and will not become
heated permanently injured
