Year: 1886

page_text: Date of Application, 19th Nov., 1886.
Specification Accepted, 29th Mar., 1887.
I, ALFRED JOHN BEAUMONT, of No. 101, Nunnery Lane, York, in the County of
York, 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 :-
My Invention relates to an apparatus to be constructed of metal and insulated
material to fuse carbon and produce an are light.
The Invention consists of two electro magnets, viz., an outer and an inner magnet,
the outer series being constructed with an iron core of tubing, around which is wound
3 layers of No. 12 Birmingham Wire Gauge insulated copper wire; a shunt magnet
is constructed of iron tube, around which is wound German Silver wire of high
resistance and is regulated by means of insulated wire running over pullies and
attached to weights, which slide up and down on rods arranged as guides.
The current enters at the positive terminal fixed on the top of the lamp, and flows
through the coil or magnet B, then proceeds down both rods E, which act as guides
(as the wire from the coil are connected to each on the top by means of screws) and
flows through the connecting bar, or slide bar L, to the upper positive carbon, and
through the negative carbon, up the rods E, that the weights slide on, and each of the
upper ends are connected to the wire, that is connected to the negative terminal.
The inner coil C is connected between the large coil and the negative terminals or
rods.
The small current passes from the connecting bar L to the terminal H, on one side
of the inner coil, being connected with a small spiral of copper wire, and flows through
the coil C, and out again at the terminal on the other side of the inner coil, through
the flexible wire to the top of the negative rod.
The positive carbon holder, slide bar, and the outer electro magnet are fitted inside
a copper tube; the slide bar is arranged as a guide for the upper end fixed central so
that the copper positive tube may slide outside freely.
The German silver wire around the inner core or magnet is connected with the large
coil on the outer magnet, by means of the negative rods or terminals. Thus when the

page_text: current passes through the large coil or outer magnet, and a small current throug
the fine wire on the inner magnet, the inner coil, which is heavier than the slidin
weights, has to be raised by the current in the large coil and the small current i
the inner coil, the latter being raised by magnetic attraction and held in arc by th
current.
When the arc becomes wider, the magnetic attraction of the large coil or magn
becomes a little weaker, and the carbons are prevented from coming together sudden
by more current flowing in the inner coil which strengthens its magnetic attraction
This attraction does not make up for the loss in the large coil or magnet and allow
it to fall into equibrium. Or provided there was too strong a current, the carbon
would become further separated and adjust themselves to the current.
And in order that my Invention may be thoroughly understood, I now proceed
describe the drawings illustrative thereof, reference being had to the letters and figure
marked thereon.
Figuro I is the front elevation and part section of the apparatus shewing the oute
and inner magnets in their relative positions.
Figuro II denotes the side elevation of the apparatus.
Figure III represents the carbon holder.
Figure IV the connecting bar on the inner magnet.
Like letters refer to like parts in each of the figures.
A the sliding weight.
B the outer magnet.
C the inner magnet.
D insulated wire.
E rods or guides.
F positive carbon holder.
H connecting screws or terminals.
J pullies.
K negative carbon holder.
L connecting bar at the base of the inner magnet.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed, I declare that what I claim, is :-
1. When the arc is struck it will maintain its arc by the current passing in tw
directions, first through the outer clectro magnet B, and also through the inner electr
magnet C, thereby causing an equilibrium, according to the accompanying drawing
herein substantially described.
2. The combination of the apparatus in which I do away with all rack and pinio
movement, brake wheel adjustments, clutches, and all kinds of such movement
herein substantially described and according to the accompanying drawings.
3. The combination of the outer electro magnet B acting on the inner magnet
when in operation, herein substantially described and according to the accompanyin
drawings.
4. The combination to prevent the break of the current from the machine so tha
the carbons will come together and strike the arc, herein substantially described an
according to the accompanying drawings.
Dated this 10th
10th day of N
mber 1980.
Having now particularly described and ascertained the nature of my said Invention,
and in what manner the same is to be performed, I declare that what I claim, is:―
1. When the arc is struck it will maintain its arc by the current passing in two
directions, first through the outer electro magnet B, and also through the inner electro
magnet C, thereby causing an equilibrium, according to the accompanying drawings
herein substantially described.
2. The combination of the apparatus in which I do away with all rack and pinion
movement, brake wheel adjustments, clutches, and all kinds of such movement,
herein substantially described and according to the accompanying drawings.
3. The combination of the outer electro magnet B acting on the inner magnet
when in operation, herein substantially described and according to the accompanying
drawings.
4. The combination to prevent the break of the current from the machine so that
the carbons will come together and strike the arc, herein substantially described and
according to the accompanying drawings.
Dated this 10th day of N amhan 1000
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C.,
Agents for the Applicant.