Improvements in Regulators for Electric Arc Lamps or Lighting Apparatus.
Year: 1894

page_text: Date of Application, 26th June, 1894
Complete Specification Left, 6th Mar., 1895-Accepted, 13th Apr.. 1895
PROVISIONAL SPECIFICATION.
Improvements in Regulators for Electric Arc Lamps or Lighting
Apparatus.
We, FRANÇOIS SUISSE and PAUL EUGÈNE HENNEQUIN, both of 45 Rue Jacob,
Paris, in the Republic of France, Engineers, do hereby declare the nature of this
invention to be as follows:-
Our invention relates to a novel electric regulator for arc lamps, characterized
by the application of an escapement arranged to make and break contact and thus
alternately close and interrupt an electric circuit, which escapement controls the
feed of the carbon and consequently effects the automatic regulation of the lamp.
Our invention will be readily understood by the following description, reference
being had to the accompanying drawing, in which
Figure 1 is a front view and
Figure 2 a side view of our improved electric regulator.
As shown in the drawing, our improved regulator for are lamps comprises an
electro-magnet a of stout wire arranged or included in the electric lighting circuit,
and which, when the said circuit is completed, depresses the lower carbon by
means of a rod t and thus strikes the arc.
The regulating electro-magnet b, having a resistance say of about 1000 ohms, is
arranged as a shunt to the main current passing through the lamp. One end of
the coil of the said magnet is connected to the terminal . where the current enters,
whilst the other end is connected to the insulated catch or pallet e of the escapement,
which escapement forms the characteristic feature of our invention.
This escapement comprises a double lever which releases the scape-wheel e,
one tooth at each double oscillation, according to the intensity of the light which it
is desired to give to the lamp.
An opposing spring controls the displacement of the double lever d. This
double lever d, which is moved in one direction by the armature when the latter
is attracted by the electro-magnet b, and in the reverse direction by the spring f
when the attraction of the magnet ceases, controls the insulated catch or pallet c of
the escapement, which is connected with the electro-magnet b.
In this manner, when the current passes through the coil of the regulating
electro-magnet b, the armature g is drawn down, and the lever makes an oscillation
and then immediately returns to its original position and so on, according to the
requirements of regulation, until the carbons are burnt away.
The operation above mentioned takes place by reason of the electro-magnet 6
being thrown out of circuit by the breaking of the contact between the catch or
pallet c and the teeth of the scape-wheel e.
C
The upper carbon is suspended from a strip or band. i forming a spring which
under the action of the weight of the upper carbon-holder is unwound from the
shaft thus causing the scape-wheel e to turu.
We also apply to our regulator a kind of watch-spring which is compressed or
extended proportionally to the unwinding of the strip or band i and which by its
reaction winds up this strip or band when the carbon-holder is raised by hand, for
changing the carbons or for other purposes.
Dated this 26th day of June 1894.
D. YOUNG & Co.,
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicants.

page_text: Improvements in Regulators for Electric Arc Lamps or Lighting
Apparatus.
We, FRANÇOIS SUISSE and PAUL EUGENE HENNEQUIN, both of 45 Rue Jacob,
Paris, in the Republic of France, Engineers, 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 :-
Our invention relates to a novel electric regulator for arc lamps, characterized
by the application of an escapement arranged to make and break contact and thus
alternately close and interrupt an electric circuit, which escapement controls the
feed of the carbon and consequently effects the automatic regulation of the lamp.
Our invention will be readily understood by the following description, reference
being had to the drawing filed with our Provisional Specification, in which :-
Figure 1 is a front view, and
Figure a side view of our improved electric regulator.
As shown in the drawing, our improved regulator for arc lamps comprises an
electro-magnet a wound with stout wire arranged or included in the electric lighting
circuit, and which, when the said circuit is completed, depresses the lower carbon
by means of a rod t and thus strikes the arc.
The regulating electro-magnet b, having a resistance say of about 1000 ohms, is
arranged as a shunt to the main current passing through the lamp. One end of the
coil of this magnet is connected to the terminal where the current enters, the
other end being connected to the insulated catch or pallet c of the escapement,
which escapement forms the characteristic feature of our invention.
This escapement comprises a double lever d which releases the scape-wheel e, one
tooth at each double oscillation, according to the intensity of the light which it is
desired to give to the lamp.
An opposing spring controls the displacement of the double lever d. This
double lever d, which is moved in one direction by the armature g when the latter
is attracted by the electro-magnet b, and in the reverse direction by the spring f
when the attraction of the magnet ceases, controls the insulated catch or pallet c
of the escapement, which is electrically connected with the coil of the electro-
magnet b.
In this manner, when the current passes through the coil of the regulating
electro-maguet b, the armature g is drawn down, and the lever makes an oscillation
and then immediately returns to its original position and so on, according to the
requirements of regulation, until the carbons are burnt away.
The operation above mentioned takes place by reason of the electro-magnet b
being thrown out of circuit by the breaking of the contact between the catch or
pallet c and the teeth of the scape-wheel e.
'
The upper carbon is suspended from a strip or band i forming a spring which
under the action of the weight of the upper carbon-holder is unwound from the
shaft thus causing the scape-wheel e to turn.
We also apply to our regulator a kind of watch-spring which is compressed or
extended proportionally to the unwinding of the strip or band i and which by its
reaction winds up this strip or band when the carbon-holder is raised by hand, for
changing the carbons or for other purposes.
Having now particularly described and ascertained the nature of our said inven
tion and in what manner the same is to be performed, we declare that what we
claim is :-
The improved regulator for electric arc lamps or lighting apparatus, comprising

page_text: an escapement having an insulated catch or pallet, and adapted to alternately close
and interrupt an electric circuit, and an opposing spring, the said escapement
controlling the feed of the carbon and consequently the automatic regulation of the
lamp, substantially as hereinbefore described with reference to the drawing.
Dated this 6th day of March 1895.
D. YOUNG & Co.,
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicants.