Year: 1885

page_text: I, JOHN EVELYN LIARDET of 16 London Street in the City of London Engineer
do hereby declare the nature of this invention to be as follows:-
-
At the present time when primary batteries are employed for the exhibition of
electric light or for other such like continuous duty the zinc elements of the battery
are rapidly consumed.
.
Now I have discovered that this consumption of the zincs may be greatly
lessened if not wholly prevented by the use in the battery cells of a solution of
which the following is the composition :—
Chromate or bichromate of potash
Sea water
Sulphuric acid
White sulphate of mercury
Ether or spirits of camphor
-
1 lb.
-
10 quarts.
-
1 pints to 1 quart.
-
--
Łoz.
t oz.
.
The zincs need not be amalgamated and with them carbon plates are employed.
The battery cells may be of porcelain glass or metal well japanned.
Nitric and muriatic acids may be employed in place of sulphuric:
An artificial solution of salt may be substituted for sea water.
Salammoniac and ammonia may be added in small quantities.
.
This battery is useful for propulsion and locomotion as well as for electric
lighting.
D
00

page_text: Improvements in Galvanic or Primary Batteries.
I JOHN EVELYN LIARDET of 16 London Street in the City of London 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:-
At the present time when primary batteries are employed for the exhibition of 5
electric light or for other such like continuous duty the zinc elements of the battery
are rapidly consumed.
Now I have discovered that this consumption of the zincs may be greatly
lessened if not wholly prevented by the use in the battery cells of a solution of
which the following is the composition.
Chromate or bichromate of potash
Sea. water
Sulphuric acid
White sulphate of mercury
Ether or spirits of camphor
1 lb.
10 quarts.
1 pints to 1 quart.
Ł oz.
Łoz.
1
The zincs need not be amalgamated and with these carbon plates are employed.
The battery cells may be of porcelain glass or metal well japanned.
Nitric and muriatic acids may be employed in place of sulphuric.
An artificial solution of salt may be substituted for sea water!
Salammoniac and ammonia may be added in small quantities.
This battery is useful for propulsion and locomotion as well as for electric
lighting.
In some cases I apply my invention to a two liquid battery; I then place the
carbon of each battery cell in an inner porous vessel and surround.it with a liquid
consisting of,
Sea water
Commercial nitric acid
Chromic acid
-
12 parts.
1
"
1
"
The zincs outside the porous vessel are surrounded by,a liquid; consisting of
Sea water
Commercial sulphuric acid
-White sulphate of mercury
Solution of ammonia
or sulphuric ether may be amploved either in place of
12 quarts.
21 pints.
oz.
-
"
toreather with the

page_text: 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. My improved galvanic or primary battery in which the consumption of the
sincs whilst the battery is in action is greatly lessened if not wholly prevented by
the use of a solution or solutions substantially as described.
2. The use in a battery cell as the exciting liquid or liquids of solutions of which
sea or salt water is the basis and containing also an acid or acids and white sulphate
of mercury substantially as described.
CARPMAEL & Co.,
Agents for the Applicant.