Improvements in Galvanic Batteries.
Year: 1887

page_text: --Date of Application, 4th Nov., .1887...
Complete Specification Left, 3rd Sept., 1888
Complete Specification Accepted, 5th Oct., 1888
PROVISIONAL SPECIFICATION.
Improvements in Galvanic Batteries.
I, PHILIPPE SKRIVANOW, of 32 rue Vignon, Paris, Gentleman, do hereby declare
the nature of this invention to be as follows:-
According to this invention I form a battery of two elementary parts, one an
attackable electrode say of iron tin or zinc by preference amalgamated, the other a
plate of retort charcoal, agglomerated charcoal, a sheet of lead or other conducting
substance which cannot be attacked by the exciting liquid used. Over this conducting
plate I spread a layer say of 04 to 12 of an inch in depth of peroxide of lead or else
minium and I envelope the whole in a sheet of parchment paper or cloth or asbestos
which I retain with india rubber bands or by tying threads around it. The two
electrodes are placed into a solution of hydrate of potassium K, HO or hydrate of
soda Na HO.
By covering the positive electrode with several sheets of filtering paper or cotton
or asbestos soaked in the above solution and applying above it the negative electrode
a dry battery can be obtained.
11 1911...
ben 1007
PHILIPPE SKRIVANOW.

page_text: I, PHILIPPE SKRIVANOW, of 32 rue Vignon, Paris, Gentleman, 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:
According to this invention I form a battery of two clementary parts, one an attackable
electrode say of iron tin or zinc, the other a plate of retort charcoal, agglomerated charcoal,
a sheet of lead or other conducting substance which cannot be attacked by the exciting
liquid used. Over this conducting plate I spread a layer say of '04 to 12 of an inch
in depth of red lead or minium and I envelope the whole in a sheet of parchment
paper or cloth or asbestos which I retain with india rubber bands or by tying threads
around it. The two electrodes are placed into a solution of hydrate of potash or
hydrate of soda.
By covering the positive electrode with several sheets of filtering paper or cotton
or asbestos soaked in the above solution and applying above it the negative electrode
a dry battery can be obtained.
A convenient way in which to construct my battery is as follows:-
I provide in each cell guides or grooves to receive three plates; the centre plato is
of zinc. The other plates are of thin sheet iron or of iron wire gauze and on the
surface of each next to the zinc I spread red lead mixed with water into a thick
paste. Over the paste I place a covering of parchment-paper and to keep this in its
place I fold over the edges of the sheet lead so that it nips the parchment-paper all
around.
The alkaline solution in which the plates are immersed should have a specific gravity
of about 1.3.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. Galvanic batteries with zinc or other attackable electrodes, and electrodes of
lead or other unattackable material coated with red lead or minium such electrodes
being placed in a solution of hydrate of potash or hydrate of soda.
2. Galvanic batteries substantially as herein described.
Dated this 3rd day of September 1888.
PHILIPPE SKRIVANOW.