IMPROVEMENTS IN ELECTRODES THE MANUFACTURE
Year: 1882

page_text: LETTERS PATENT to William Sinnock of New Cross Road in the County
of Kent for an Invention of IMPROVEMENTS IN
ELECTRODES
THE MANUFACTURE OF
PROVISIONAL SPECIFICATION left by the said William Sinnock at the
Office of the Commissioners of Patents on the 13th September 1882.
WILLIAM SINNOCK of New Cross Road in the County of Kent " IMPROVE-
MENTS IN THE MANUFACTURE OF ELECTRODES
"
My invention relates to the manufacture of electrodes in such a manner that
they shall be capable of storing a great amount of electrical energy within very
small space. As the quantity of electrical energy which can be accumulated and
stored within a given space and weight depends chiefly upon the extent of surface
presented by the electrodes I according to my invention adopt a method of
obtaining a very large surface in small space and with small weight as follows:-
When the electrodes are of metal I melt the metal and cast it in moulds and
when they are of material not readily fusible, I make the material into a pulp or
paste and form it in moulds. In both cases the moulds are provided with numerous
core wires which after the material has set can be removed, leaving the moulded
plate or piece perforated with numerous holes which may be in all directions
exposing a large amount of internal as well as external surface. In some cases
instead of using core wires which are afterwards withdrawn I employ fibres which
being of a porous or permeable character may be left in the moulded mass.
metal is employed to form the electrodes the fibre should be of asbestos to sustain
the heat of the molten metal. When the electrode is made by moulding a pulp or
paste without great heat, animal or vegetable fibres may be employed. Both the
wire cores and the fibres may be used together the former being withdrawn and
the latter left in the body of the electrode.
When

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Sinnock in the Great Seal Patent Office on the
13th March 1883.
WILLIAM SINNOCK of New Cross Road in the County of Kent
MENTS IN THE MANUFACTURE OF ELECTRODES
"
" IMPROVE-
My invention relates to the manufacture of electrodes in such a manner that
they shall be capable of storing a great amount of electrical energy within very
small space.
As the quantity of electrical energy which can be accumulated and
stored within a given space and weight depends chiefly upon the extent of surface
presented by the electrodes, I, according to my invention, adopt a method of
obtaining a very large surface in small space and with small weight as follows:—
When the electrodes are of metal I melt the metal and cast it in moulds; and
when they are of material not readily fusible, I make the material into a pulp or
paste and form it in moulds. In both cases the moulds are provided with numerous
cores (such as wires) which, after the material has set, can be removed, leaving the
moulded plate or piece with numerous cellular and other holes which may be in
all directions exposing a large amount of internal as well as external surface. In
some cases, instead of using cores which are afterwards withdrawn, I employ fibres
which being of a porous or permeable character may be left in the moulded mass.
When metal is employed to form the electrodes, the fibre should be of material
capable of sustaining the heat of the molten metal. When the electrode is made
by moulding a pulp or paste without great heat, animal or vegetable fibres may be
employed. Both the wire cores and the fibres may be used together, the former
being withdrawn and the latter left in the body of the electrode. The holes left
on withdrawal of the cores may be filled with powder of the material constituting
the electrodes. Thus for example when the electrodes are of lead such as are
employed in storage or accumulator batteries, the core holes may be filled with
lead filings.
Having thus described the nature of my invention and in what manner the
same is to be performed, I claim :-
The manufacture of electrodes for accumulator or storage and other electrical
batteries by casting or moulding the material constituting the electrode with
numerous holes, substantially as and for the purpose herein set forth.
In Witness whereof I the said William Sinnock have hereunto set my hand
and seal this sixth day of March in the year of our Lord One thousand
eight hundred and eighty-three.