Year: 1888

page_text: Date of Application, 21st July, 1888
Complete Specification Left, 3rd Nov., 1888
Complete Specification Accepted, 21st Dec., 1888
I ILLIUS AUGUSTUS TEIMIS of No. 2 Great George Street Westminster S.W. in the
County of Middlesex Civil Engineer, do hereby declare the nature of this invention
to be as follows:-
The objects of my Invention are to cheapen the production, lessen the weight and
perfect the action of the positive elements (or as they are called the cathodes) of
secondary Batteries.
With these objects in view I make these elements (or cathodes) of litharge in
combination with a suitable solution preferably .sulphate of ammonia, solid, i.e. in a
block or rather cake, or slab of any convenient size and thickness and reduce
them in the ordinary way that is 1 dispense with the use of grids or racks, or any
of the numerous supports made of conducting material devised to support the
Litharge or reduced material.
The supports I make of any inoxidisable material that I can use such as ebonite
or other suitable material and by this means I overcome buckling and the_con-
sequent destruction of the plates. And I make the contacts preferably of Lead,
which I fasten against the plates or elements with inoxidisable nuts and bolts or
clamps or by any other suitable means.

page_text: 1 ILLIUS AUGUSTUS TIMMIS of No. 2 Great George Street Westminster S.W. in the
County of Middlesex Civil 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 :-
The objects of my Invention are to cheapen the production lessen the weight and
perfect the action of the positive element (or as they are called the cathodes) of
secondary Batteries.
With these objects in view I make these elements (or cathodes) of litharge
combined with a suitable solution, preferably sulphate of ammonia, solid i.e. in a
block, cake or slab of any convenient size or thickness and reduce them in the
ordinary way.
I dispense with grids or racks or any of the numerous supports made
of conducting material to support the litharge or reduced material.
The supports 1 make of any inoxidisable material that I can use, such as ebonite
celluloid or any other suitable material and by this means I overcome buckling and
the consequent destruction of the plates; and I make the contacts preferably of lead
which 1 fasten against the plates or elements with inoxidisable nuts and bolts or
clamps or by any other suitable means.
The drawings accompanying this specification will render more plain the nature and
objects of my said Invention. Fig. 1 is a plan of an element. Fig. 2 is a section
taken on the dotted line x, y. Fig. 3 represents a similar plate made to a larger scale
for a small secondary battery or accumulator. Fig. 4 is a section taken on the dotted
line xy. In these drawings the same letters of reference refer to all the figures and
A represents the strips of celluloid, or other insulating material of which the frame-
work is composed, which encloses the plate or element to prevent it buckling: Bis
the plate or element itself C the lead contact fastened against the plate B by the
inoxidisable nuts and bolts D or it can be embedded in the plate B or secured to it by
any other suitable means.
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 :-
An element for secondary batteries consisting of a solid plate or cake of a compound
of litharge and a suitable solution preferably sulphate of ammonia and enclosed by a
framework of celluloid or other insulating material to prevent it buckling the said
element having a contact, preferably of lead, fastened against it by inoxidisable bolts
and nuts or by any other suitable means.
Dated this Second day of November 1888.