IMPROVEMENTS IN OR CONNECTED WITH MODERATORS FOR ELECTRIC LAMPS
Year: 1885

page_text: I EMILE LOUIS ROUSSY of Vevey Switzerland miller do hereby declare the nature
of iny said Invention for "IMPROVEMENTS IN OR CONNECTED WITH MODERATORS
FOR ELECTRIC LAMPS" to be as follows:
The drawing hereto will serve to illustrate my said invention. Fig. 1 shows a
side view and vertical front-section of a moderator intended to be fixed against
the wall and to moderate at will the intensity of an incandescent electric lamp
connected with same and placed at any distance therefrom. The said apparatus is
provided with an interrupter.
Fig. 2 shows the same apparatus without interrupter but provided with a
luminous plate. In both figures the same letters refer to the same parts.
The electric current enters the apparatus by the wire A connected with the
metallic piece B which is provided with a female screw corresponding to the
screw C of the moderator. The latter is intended to compress more or less
the carbon powder D placed in a hollow of the cylinder E formed of a non-
conducting material.
The carbon-powder D offers to the current more or less resistance, according as
it is more or less compressed by the screw C the end C₁ of which is of conical form.
From the conductive powder 1 the current passes into the screw F fixed on the
bottom of the hole. A metallic piece G connected with the wire H is provided
with a metallic piston I arranged as to be thrown against the screw F by means of
a spring J as soon as the pin K is placed so as to enter the corresponding notch
with which the piece G is provided for that purpose.
By turning the piston I the contact between I and F is interrupted and the
apparatus set out of working.
The apparatus shown in Fig. 2 is principally the same as in fig. 1. but the electric
current passes from the screw F directly to the lamp by means of the wire H.
Moreover the whole apparatus is fixed upon a plate L of wood or other material
upon which has been inserted a plate M of luminous cardboard or other material
intended to show the place of the moderator in the dark.
782 .

page_text: COMPLETE SPECIFICATION.
Improvements in or Connected with Moderators for
Electric Lamps.
Í EMILE LOUIS ROUSSY of Vevey Switzerland Miller do hereby declare the
nature of this invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:-
The object of the present invention are new and useful improvements in
moderators for electric lamps shewn in the accompanying drawings in which
figure 1 is a side view and tig: 2 a vertical front section of a moderator intended
for affixing against the wall and to moderate at will the intensity of an incan-
descent electric lamp connected with the same and placed at any distance. The
said apparatus is provided with an interruptor of the electric current.
Figure 3 is a vertical front section and fig. 4 a side view of the same apparatus
without interruptor but provided with a luminous plate and covered moderator-
screw.
In all the figs: similar letters refer to similar pieces.
The electric current enters the apparatus through wire A connected with the
metallic piece B which is provided with a female screw corresponding to the
screw C of the moderator. The latter is intended to compress more
or less
the charcoal powder D placed in a tube P of non-conducting material which is fixed
in a wooden console E. The charcoal powder D offers to the current more or less
resistance according as it is more or less compressed by the screw C the end C¹
being of the conical form shewn.
From the conductive powder D the current passes into the screw F fixed on the
bottom of the hole of P. A metallic piece G connected with a wire H and fixed to
the console E is provided with a metallic piston I disposed so as to be thrown
against the screw F by means of a spring J as soon as pin K is placed so as to
enter the corresponding notch with which piece G is provided for that purpose.
By turning the piston I of 90° the contact between I and F is interrupted and the
apparatus set out of working.
The apparatus shewn in the figs. 3 and 4 is principally the same as that already
described.
Its particulars are the following:-Screw C is provided with a squared end
piece intended to be turned with the aid of a key, said screw is moreover covered
with a cap B¹ in view of shielding it.
Screw F traverses an ornamental metal cap G affixed by means of a screw nut g
and connected with wire H. Thus the electric current passes from D to H without
means of interruption.
The whole apparatus is moreover fixed upon a plate L of wood or other suitable
material upon which has been inserted a plate M of luminous board intended to
shew the position of the moderator in the darkness.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what
I claim is
1st The console E with tube P of non-conductive material combined with a
metallic piece B having a screw C with button C and with a screw F metallic
piece G and interruptor I J substantially as shown and described and for the
purpose specified.
2nd The combination of the console E with tube P of non-conductive material
provided with the metallic piece B and screw C with end-piece C¹ with or without
interruptor combined with a luminous plate M as shewn and described and for the
purpose specified.
BROWNE & Co.,
Agents for the Applicant.