Improvements in or connected with Electric Batteries.
Year: 1892

page_text: Date of Application, 19th May, 1892
Complete Specification Left, 18th Mar., 1893—Accepted, 29th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Electric Batteries.
We, CHARLES PERCY SHREWSBURY, of No. 35, Queen Victoria Street, in
the City of London, Engineer, and JOHN LASKEY DOBELL, of Traine, Modbury,
in the County of Devon, Electrical Engineer, do hereby declare the nature of this
invention to be as follows:-
:-
This invention relates to that class of electric batteries in which one electrode is
formed by plates or cylinders or blocks of carbon or coke or other carbonaceous
matter, or, the carbon or coke or other carbonaceous matter is, in some cases,
employed in other suitable forms, and the other or non-dissolving electrode is
formed of plates or surfaces of iron or other metal, or this electrode is, in some
cases, composed of oxides, by preference, the higher oxides, of any suitable metal,
such as, the oxides of the following metals :-
Manganese, iron, cobalt, nickel, barium, lead and copper, and such oxides are
either employed separately or in combination with each other or with suitable
metals or nitrates.
The exciting liquid employed in this type of battery is nitrate of potash, nitrate
of soda or other suitable nitrate, or mixture of nitrates, the same being maintained
in a fused state by the aid of heat.
To increase the efficiency of electric batteries of the nature above referred to,
we mix with the nitrate a certain amount of chloride or chlorate of sodium, or, of
chloride or chlorate of potassium, or, of bromide of sodium or potassium, or, of
iodide of sodium or potassium, or, of carbonate of sodium or potassium, or, of any
suitable metallic chloride, chlorate, bromide, iodide or carbonate.
Instead of mixing such chlorides, chlorates, bromides, iodides or carbonates with
the nitrate, as lastly referred to, we, in some cases, combine or mix the same with
the non-dissolving electrode, or, the last mentioned electrode may be composed of a
suitable chloride, chlorate, bromide, iodide or carbonate.
Instead of employing a single chloride chlorate, bromide, iodide, or carbonate,
as above stated, we may employ a suitable compound or mixture of two or more
of the same.
Dated this 19th day of May 1892.
VAUGHAN & SON,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or connected with Electric Batteries.
We, CHARLES PERCY SHREWSBURY, formerly of No. 35, Queen Victoria
Street, in the City of London, but at present of No. 8, Furnival's Inn, Holborn,
in the said City, Engineer, and JOHN LASKEY DOBELL, of Traine, Modbury, in
the County of Devon, Electrical 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 :-
Our said invention relates to that class of electric batteries in which one
electrode is formed by plates or cylinders or blocks of carbon or coke or other
carbonaceous matter or in which the carbon or coke or other carbonaceous matter
is, in some cases, employed in other suitable forms, and in which the other or
non-dissolving electrode is formed of plates or surfaces of iron or other suitable
CD 77

page_text: metal, such as platinum, silver or copper, or in which this electrode is, in some
cases, composed of oxides, by preference, the higher oxides, of any suitable metal,
such as, the oxides of the following metals :-
Manganese, iron, cobalt, nickel, barium, lead or copper, and such oxides are
either employed separately or in combination with each other.
The exciting liquid employed in this type of battery is nitrate of potash, nitrate
of soda or other suitable nitrate, or mixture of nitrates, the same being maintained
in a fused state by the aid of heat.
As batteries of the nature above referred to are of a high internal resistance,
we increase their efficiency by mixing with the nitrate a quantity of chloride or
chlorate of sodium, or, of chloride or chlorate of potassium, or, of bromide of
sodium or potassium, or, of iodide of sodium or potassium, or, of carbonate of
sodium or potassium, or of any suitable metallic chloride, chlorate, bromide, iodide
or carbonate.
a
The quantity of the material added to the nitrate will necessarily vary according
to the exposed area of the electrodes and other causes, but, in a cell exposing
surface of about 30 square feet of carbonaceous fuel forming the dissolving
electrode, it is found in practice that the addition of about 2-5 per cent. to about
50 per cent. of such material, according to the nature thereof and condition of the
cell, may be usefully employed.
Instead of mixing such chlorides, chlorates, bromides, iodides, or carbonates with
the nitrate, as lastly referred to, we, in some cases, combine or mix the same in
the form of a coating or otherwise with any suitable metal or metallic oxide to
form the non-dissolving electrode, or, the last mentioned electrode may be entirely
composed of a suitable chloride, chlorate, bromide, iodide, or carbonate.
Instead of employing a single chloride, chlorate, bromide, iodide or carbonate,
as hereinbefore described, we may employ a suitable compound or mixture of two
or more of the same.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In an electric battery of the character hereinbefore referred to, the com-
bination with the fused nitrate of sodium or potassium in the form of chloride,
chlorate, bromide, iodide or carbonate or any other suitable metallic chloride,
chlorate, bromide, iodide or carbonate alone or in combination, substantially as
herein described.
2. In an electric battery of the character hereinbefore referred to, forming
the non-dissolving electrode of or combining therewith sodium or potassium, in
the form of chloride, chlorate, bromide, iodide or carbonate or any other suitable
metallic chloride, chlorate, bromide, iodide or carbonate alone or in combination,
substantially as herein described.
Dated this 18th day of March 1902
VAUGHAN & SON,
Agents for the Applicants.