Improvements in Electrodes for Electrolytical Purposes.
Year: 1896

page_text: Date of Application, 16th Jan., 1896
Complete Specification Left. 15th Sept.. 1896-Accepted, 24th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in Electrodes for Electrolytical Purposes.
I, WILHELM HERAEUS, of the Firm of W. C. Heraeus, Hanau on the Main, in
the Empire of Germany, Platinum Founder and Manufacturer, do hereby declare
the nature of this invention to be as follows:-
The object of this invention is to produce a platinum electrode suitable for
electrolytical purposes and one, that combines the advantage of a high resistance to
large currents with great cheapness.
In constructing the improved electrode, thin sheet platinum is drawn out or bent
and soldered so as to form a tube into which a solid rod or core of copper or other
suitable conducting material is inserted. This rod or core must be of such
dimensions as to well fit the inner wall of the platinum tube at all parts.
Two or more tubes of this kind are then connected together by conducting or
non-conducting transverse top-bars and the interval between them is bridged over
by means of a thin platinum sheet plate extending as high as the electrode is
intended to be immersed in the electrolyte. Both sides of this sheet platinum
have of course the effect of electrolytically acting surfaces, while the filling or core
of the tubes to which the sheet platinum is connected ensures that much larger
currents can be suitably supplied than could be supplied by the sheet platinum
alone without injury to the latter.
Electrodes of this kind are very efficient for all electrolytical purposes owing to
the fact that they combine great cheapness with a high resistance while at the
same time they are capable of receiving and conveying large currents.
The platinum tubes should be carefully closed at the bottom with platinum
either before or after the filling or core has been introduced, so that the electrolyte
is prevented from entering the interior of the tubes.
Dated this 16th day of January 1896.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
1, WILHELM HERAEUS, of the Firm of W. C. Heraeus, Hanau on the Main in
the Empire of Germany, 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 produce a platinum electrode suitable for
electrolytical purposes and one that combines the advantage of a high resistance to
large currents with great cheapness.
In constructing the improved electrode, thin sheet platinum is drawn out or bent
and soldered so as to form a tube into which a solid rod or core of copper or other
suitable conducting material is inserted. This rod or core must be of such
dimensions as to well fit the inner wall of the platinum tube at all parts.

page_text: Two or more tubes of this kind are then connected together by conducting or
non-conducting transverse top-bars and the interval between them is bridged over
by means of a thin platinum sheet plate extending as high as the electrode is
intended to be immersed in the electrolyte. Both sides of this sheet platinum
have of course the effect of electrolytically acting surfaces, while the filling or
core of the tubes to which the sheet platinum is connected ensures that much
larger currents can be suitably supplied than could be supplied by the sheet
platinum alone without injury to the latter.
Electrodes of this kind are very efficient for all electrolytical purposes owing to
the fact that they combine great cheapness with a high resistance while, at the
same time they are capable of receiving and conveying large currents.
The platinum tubes should be carefully closed at the bottom with platinum
either before or after the filling or core has been introduced, so that the electrolyte
is prevented from entering the interior of the tubes.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is
A platinum electrode serving for electrolytic purposes, in which, with an
optionally strong inlet of current, a large surface is obtained by connecting with
each other two or more platinum tubes, filled with a material of any kind forming a
good conductor, at the top by transverse pieces, and by connecting with each other
the intermediate spaces of the same, so far as they dip into the electrolytic bath, by
a thin sheet of platinum.
1000
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.