Improvements in Electrodes for Electric Accumulators.
Year: 1891

page_text: Date of Application, 13th May, 1891
Complete Specification Left, 23rd Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Electrodes for Electric Accumulators.
A communication from abroad by HENRI O. TUDOR, of Rosport, in the Grand
Duchy of Luxembourg, Engineer.
I, William PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester,
both in the County of Lancaster, and 323, High Holborn, in the County of
Middlesex, Civil Engineer, do hereby declare the nature of this invention to be as
follows:--
One of the claims in English Patent No. 11543 of August 24th, 1887, relates to
a special form of plate or electrode with a flat middle core, having, on its two
faces, ridges or grooves arranged symmetrically so as to give them the greatest
possible surface development.
The object of this improvement is to further develop the surface of these
electrodes by arranging the above mentioned grooves or ridges no longer on both
faces of a flat middle plate, but rather, on a support having itself larger and deeper
These grooves or projections may
grooves or projections arranged on both faces.
be of rectangular, conical, triangular or any other suitable form.
Figure shows a front view of a support of this kind, and
Figure 2, a section on A. B of Figure 1, in which the large grooves are arranged
vertically and the small ones horizontally.
Figure 3 is a section of the plate on the line C D of Figure 1.
The electrodes may be either cast in one piece in a special mould, or milled or
rolled or formed of fragments of plates placed together and soldered together at
their extremities, each of these parts being covered with grooves and ledges, and
their transverse section being capable of assuming any geometrical form.
Figure 4 shows the plates having the shape of a lozenge, a being the middle
core and the ridge covering it; and
Figure 5 in the form of a rectangle with vertical ridges.
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WM. P. THOMPSON & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Electrodes for Electric Accumulators.
A communication by HENRI O. TUDOR, of Rosport, in the Grand Duchy of
Luxembourg, Engineer.
1, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E. of the Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool & 6 Bank Street, Manchester,
both in the County of Lancaster, & 323 High Holborn, in the County of
Middlesex, Civil Engineer, 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 :-
One of the claims in English Patent No. 11543 of August 24th, 1887, relates to
a special form of plate or electrode with a flat middle core, having, on its two
faces, ridges or grooves arranged symmetrically so as to give them the greatest
possible surface development.
The object of this improvement is to further develop the surface of these

page_text: electrodes by arranging the above mentioned grooves or ridges no longer on both
faces of a flat middle plate, but rather, on a support having itself larger and deeper
grooves or projections arranged on both faces. These grooves or projections may
be of rectangular, conical, triangular or any other suitable form.
In the drawings accompanying the Provisional Specification:
Figure 1 shows a front view of a support of this kind; and
Figure 2, a section.on A B of Figure 1, in which the large grooves are arranged
vertically and the small ones horizontally.
Figure 3 is a section of the plate on the line C D of Figure 1.
The electrodes may be either cast in one piece in a special mould, or milled, or
rolled, or formed of fragments of plates placed together and soldered together at
their extremities, each of these parts being covered with grooves and ledges, and
their transverse section being capable of assuming any geometrical form.
Figure 4 shows the plates having the shape of a lozenge, a being the middle core
and the ridge covering it; and
Figure 5 in the form of a rectangle with vertical ridges.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
1. The improvements in electrodes, which consist in forming them of a plate, the
two surfaces of which are provided at variable distances with grooves, ridges or
projections, more or less deep and of any suitable form, and which latter have, at
each side, either horizontally or vertically, or otherwise, other smaller grooves or
ridges as mentioned in English Patent No. 11543 of 1887, all substantially as
hereinbefore described.
2. The modified construction of electrode, of the kind described in Claim 1,
consisting in the plates being formed of parts or fragments, with a central core, and
the same being covered with grooves or ridges, as has been described, the section
of which may be of any geometrical form, these parts or fragments being united
at their extremities by solder or otherwise, all substantially as hereinbefore
described.
Dated this 22nd day of January 1892.
WM. P. THOMPSON & Co.,
Agents for the Applicant.