Improvements in Arc Lamps.
Year: 1889

page_text: Date of Application, 22nd Aug., 1889
Complete Specification Left, 22nd May, 1890-Accepted, 16th Aug., 1890
PROVISIONAL SPECIFICATION.
Improvements in Arc Lamps.
CHARLES JULIAN 132 Arlington Road Camden Town in the County of Middlesex,
Electrician do hereby declare the nature of this invention to be as follows:-
The object of this invention is to construct an are lamp that will work in con-
junction with incandescent lamps in parallel without the loss consequent upon using
shunt coils therein, also to work in series, alternating, or continous current circuits.
This I effect in the following manner the carbon rod or rods are caused to descend
by weight of the carbon holder or rod which is in gear with wheels and pinions or
any known gearing, this gearing is controlled by pallets or any known detent that
shall cause reciprocation of a rod carrying a small magnet, or soft iron peice, or a
small bundle of iron wires, which shall act as a pendulum when no current is and
allow the carbons to come together.
on,
A coil of wire forming an electro magnet is so arranged that its core, or
armiture, causes the separation of the carbons and forms the arc, in the same circuit.
is (by preference two) small coils placed in such a position that when the above
mentioned small magnet, soft iron rod, or small bundle of wires, reciprocate, the ends
of the same do so between the small coils in such a manner that the motion is stopped
by the small magnet, soft iron rod or small bundle of iron wires, being held by one of
the coils, whichever it happened to he nearest too when the current is put on, both
these small coils are in the same circuit so that they are both trying to attract the
iron, or in place of this iron a third small coil may be used attached to the end of
the pendulum rod, to swing between the other two small coils and will be stopped
in the same manner.
For continous current lamps the two small coils may be replaced by two polar
extensions from the larger are making magnet.
The action of the lamp is as follows,
When the current is put on it first passes by the carbons and are, through the
arc making coil, then through the two small coils and to the next lamp or return
wire.
As the arc gets longer by the consumption of the carbons the attractive force of all
the coils diminishes, but the small coils will allow the pendulum to swing and bring
the carbons closer together before the are making coil diminishes in power sufficient
to give way.
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A 1000
CHARLES JULIAN.
COMPLETE SPECIFICATION.
Improvements in Arc Lamps.
CHARLES JULIAN, of 132 Arlington Road Camden Town St. Pancras in the
County of Middlesex Electrician 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 this invention is to construct an arc lamp that will work in con-
junction with incandescent lamps in parallel without the loss consequent upon using
shunt coils therein also to work in series, alternating, or continous current circuits.
This I effect in the following manner the carbon rol or rods are caused to des end
by weight of the holder or rol which is in gear with wheels and pinions or any known
gearing, this gearing is controlled by pallets or any known detent that shall cause a
reciprocation of a rod carrying a small magnet or soft iron peice or a small bundle of

page_text: iron wires, which shall act as a pendulum when no current is on and allows the carbons
to come together. A coil of wire A Figs. I and II forming an electro-magnet C,
causes the separation of the carbons and forms the arc.
In the same circuit are (by preference two) small coils B and B Fig. II, placed in
such a position that when the above mentioned small magnet, soft iron rod, or small
bundle of wires, F¹ Fig. I and t and t¹ Fig. II reciprocates, the ends of the same do
so between the small coils in such a manner that the motion is stopped by the bundle
of wires being held by one of the coils whichever it happened to be nearest to when
the current is put on.
Both these small coils are in the same circuit, so that they are both trying to attract
the iron, or in place of this iron a third small coil may be used attached to the
pendulum rod F Fig. I, to swing between the polarized screws E and E¹ Fig. I or
are to be placed upon the small bundle of soft iron wires; t and t¹ Fig. II, and will
be stopped in the same manner.
The two small coils may be replaced by two polar extensions from the larger are
making magnet.
The action of the lamp is as follows:-
When the current is put on it first passes by the rack N, Figs. I and II and
carbons, through the are making coil, A, then through the two small coils B and B¹
Fig. 11, to the next lamp or return wire, it then causes the attraction of core (Figs. I
and II within the coil A, by so doing it moves a lever and O' with a fulcrum at P
and P' downwards, the core C, being loosely suspended at D and D' Figs. I and II; and
moves upwards the opposite end of the lever which also carries loosely suspended
at Q and Q' the framework R and R' Figs. I and II which contains the required
train of wheels and pinions also the rack N geared thereto, upon two guide rods S. S.
and S' S¹ Figs. I and II, by so doing; it separates the carbons which produces
the arc.
As the arc gets longer by the consumption of the carbons the attractive force of all
the coils Fig. 11 diminishes, but the small coils will allow the reciprocating bar F to
swing, causing the bundles of fine iron wire t and t¹ to work in and out of the coils B
and B' allowing the scape wheel M to turn and the rack N to descend, to supply the
carbon as consumed.
In Fig. I, F is a pendulum carrying a soft iron bar, or bundle of wires F', which
reciprocates between the adjusting screws E and E' which are fixed in the polar
extension of the bottom iron K of the are making electro magnet A.
The two screws E and E¹ Fig. I derive their magnetism from the are making
coil A being a polar extension of its core and acts upon the bar or bundle of iron
wires Fallowing it to move or stop according to the attractive power which
depends upon the length of the arc; and regulates the feed as do the small coils in
Fig. II.
Having now particularly described and ascertained the nature of my inven
tion and in what manner the same is to be performed I declare that what I
claim is :-
1st. An arc lamp where a coil or electro magnet is used to separate the carbons
that has its iron extended forming a magnetic pole or poles as herein described
and substantially as shewn in the drawings and for the purpose herein set forth
in Fig. I..
2nd. A coil or coils placed in the same circuit as the arc making coil that shall so
act upon a reciprocating bar, or rod, to arrest of liberate it according to the length of
the arc as herein described; and substantially as shewn in the drawing.
Dated 22nd day of May 1890.
CHARLES JULIAN..