nited States Patent Office. 390,414,1 have shown and
described this system detail, and there
fore deem sufficient, for the present case 75
say that the lamps herein described, while
utterly inoperative any the circuits now,
or, far aware, heretofore employed
become highly efficient sources light the
frequency the current which they are 80
operated sufficiently great and the poten
tial sufficiently high.
This application confined particular
form lamp which employ anew system
invented me, which system involves, as
one its essential characteristics, the em- 70
ployment currents electric effects a
novel kind. 455,069, dated June 30,1891. similar view form lamp ar
ranged fór inductive connection with such
source. 95
Fig. (N
om
odel. 392,669.
It maybe further remarked that various
forms Geissler vacuum tubes the termi
nals points within the tube become have
a tendency become heated the action
40 the high-tension secondary discharge.
The common methods steps followed •
the manufacture the ordinary incandescent 1co
lamps and Geissler tubes may employed
in the manufacture these improved lamps
as far applicable. produce such cur- ,
rents, any known means may utilized or
the plan described mysaid application fol
lowed disruptively dischargingthe aconmu- 85
lated energy condenser into through
a primary circuit produce current very
high frequency, and inducing from this cur
rent secondary current ofa very much higher
potential.
In order more distinctly point out those
features which distinguish invention, I
would state that heretofore electric lamps
have been made, first, mounting re-
20 fraetory conductor metallic supporting-
wires leading into hermetically-sealed re
ceiver from which the air has been exhausted
or replaced inert gas, and, second, by
placing two independent conductors re-
25 ceiver globe and partially exhausting the
air therefrom.
SPECIFICATION forming part Letters Patent No. 90
I now refer the drawings illustration
of the invention. the first case the carbon
or other conductor rendered incandescent
by the actual flow passage current
through it, while the second the luminous
30 effects, heretofore produced, or, fact,
the only luminous effects that could pro
duced any means heretofore known, were
due actual discharge current from
one conductor the other across the inter-
35 mediate space rarefied air gas.
ELECTRIC IŇCAN DESCENT LAMP.
♦
ApplicationfiledM
ay 14,1891.
N Y. In
such tubes, however, the degree exhaustion
is comparatively low, high vacuum pre
vents the well-known Geissler discharge or
effect. Moreover, with such low degrees of
45 exhaustion the points wires, heated and
allowed become incandescent, are speedily
destroyed.will pass, the condition known
as non-striking vacuum,” and maybe 65
as much farther possible. SerialSo.
Figure 1is avertical sectional viewofa lamp
constructed with leading-in wires for direct
connection with circuit source current.)
To all whom concern,:
Be known that esla, sub
ject the Emperor Austria, from Smiljan,
Lika, border country Austria-Hungary, re-
5 Siding New York, the county and State
of New York, have invented certain new and
useful Improvements Electric Incandes
cent Lamps, which the following speci
fication, reference being had the draw-
i ings accompanying and forming part the
same.
A glass globe receiver with neck
.
My invention new form lamp for
giving light the incandescence carbon
or other suitable refractory conductor pro-
15 duced electrical energy. „
I have discovered that two conducting-
bodies mounted very highly exhausted
50 receiver may rendered incandescent and
practically utilized source light if
connected directly inductively the ter
minals source current very great
frequency and very high potential. application filed me
April 25, 1891,No.
The practical requirements this inven- 55
tion are widely different from those employed
in producing apy the phenomena hereto
fore observed, such differences being mainly
in respect the current, which must one
of enormous frequency and excessively 60
high potential, and also the degree ex
haustion the globe receiver, which must
be carried least beyond the point which
a spark
