Improvements in Primary Electric Batteries.
Year: 1886

page_text: I GEORGE FITZHARDINGE ROSE of Penrose House Hampstead in the County of
Middlesex Gentleman do hereby declare the nature of this Invention to be as
follows:-
My Invention relates to the production of an efficient primary battery capable
of action for a lengthened period with great economy of the materials used in or
for the battery. I take any suitable vessel or container and I place within it
a porous vessel thus forming two compartments. In one compartment I place the
one electrode or set of electrodes of carbon and in the other compartment the other
electrode or set of electrodes of zinc. The electrolyte which I use in the one
compartment is bichromate of potash with sulphuric acid and in the other plain
water or acidulated water. A layer of mercury may be put in the compartment in
which are the zincs.
J. HENRY JOHNSON,
47, Lincoln's Inn Fields, London, W.C.,
Agent for the said G. F. Rose.
COMPLETE SPECIFICATION.
Improvements in Primary Electric Batteries.
I GEORGE FITZHARDINGE ROSE of Penrose House Hampstead in the County of
Middlesex 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:—
My Invention relates to the production of an efficient primary battery capable
of action for a lengthened period with great economy of the materials used in or
Improvements in Primary Electric Batteries.
I GEORGE FITZHARDINGE ROSE of Penrose House Hampstead in the County of
Middlesex 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 :—
My Invention relates to the production of an efficient primary battery capable
of action for a lengthened period with great economy of the materials used in or

page_text: for the battery. I take any suitable vessel or container and I place within it a
porous vessel thus forming two compartments. In the outer compartment I place
the one electrode or set of electrodes of carbon and in the compartment constituted
by the porous vessel I place the other electrode or set of electrodes of zinc.
The electrolyte which I use in the outer compartment is bichromate of potash
and acid solution and in the inner compartment or porous vessel plain water or
acidulated water. A layer of mercury may be put in the compartment in which
are the zincs.
The accompanying drawing illustrates in plan in figure 1 and elevation in
Figure 2 a battery of four cells composed according to my Invention. A are the
outer vessels or containers and B are the porous vessels placed therein. In the
vessels A an electrolyte of bichromate of potash and sulphuric acid solution is put
as at a In the porous vessels B I put water as at b. The zinc elements z are in
the water in the vessels B and the carbon elements C. are in the solution in the
vessels A. The elements have lugs projecting alternately at opposite sides as at 23
and respectively the carbons being connected together.by the strips d and with
the zines by the flexible connections d. If it. be desired to readily remove the
zincs from the liquid when the battery is not in use this may be done by means of
the shaft e mounted in standards f and provided with a handle e for turning it
and with a ratchet wheel g and. pawl g² for preventing return motion until the
pawl is lifted. The cords e³ are attached to the shaft e and to the zincs so that by
turning the shaft e the zincs may all be simultaneously raised from the liquid (the
flexible connections allowing of this) and they will then be supported out of the
liquid by the pawl g engaging with the ratchet wheel g. By lifting the pawl g²
the zincs can be lowered into the liquid when the battery is to be used. h repre-
sents a switch and i a lamp lighted by the battery. It will be evident that any
required number of cells may be used.
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
1st. A primary battery consisting of any number of containers A and porous
vessels B one containing an acid solution of bichromate of potash and one set of
electrodes and the other containing water and the other of the electrodes substan-
tially as hereinbefore described.
2nd. The battery hereinbefore described and illustrated by the accompanying
drawings.
Dated this 20th der of Sentember 1886