IMPROVEMENTS IN SECONDARY BATTERIES
Year: 1882

page_text: LETTERS PATENT to Astley Paston Price of 47 Lincolns Inn Fields in the
County of Middlesex Gentleman for an invention of "IMPROVEMENTS IN
SECONDARY BATTERIES
"
PROVISIONAL SPECIFICATION left by the said Astley Paston Price at the
Office of the Commissioners of Patents on the 9th June 1882.
ASTLEY PASTON PRICE of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman "IMPROVEMENTS IN SECONDARY BATTERIES
"
This Invention relates to improvements in the construction of what are known
as Secondary batteries and consists in the employment of what is known as
Spongy India rubber or India rubber Sponge in the construction of Secondary
batteries in a manner similar to that in which porous or permeable materials are
now employed or are capable of being employed in such or in similar batteries.
The spongy India rubber or the India rubber sponge may be employed in the form
of sheets or of cells or in any other form the object being to employ a porous and
permeating material which is not easily acted upon by the acid solutions when
placed in Secondary batteries

page_text: ]
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Astley Paston Price in the Great Seal Patent Office on the
9th December 1882.
ASLEY PASTON PRICE of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman "IMPROVEMENTS IN SECONDARY BATTERIES
"
My said Invention relates to improvements in Secondary batteries and has
reference to the class of such batteries wherein the elements employed consist
respectively of peroxide of lead and of metallic leád such for example as the battery
forming the subject matter of letters Patent No 1587 granted to Alfred Tribe as
of the first day of April in the year of Our Lord One thousand eight hundred and
eighty two and my said Invention consists in the employment of what is known
as spongy India rubber or india rubber sponge as an envelope casing sheath or
container for the element of peroxide of lead or of metallic lead, the said spongy
india rubber or india rubber sponge may be employed in the form of sheets or of
cells bags or containers in any suitable form the object being to employ in
conjunction with the said active materials of the elements a porous and permeable
material which is not easily acted upon. by the acid solution employed in the
battery. In the case of preparing the negative element consisting of peroxide of
lead the said peroxide of lead being prepared for example as described in the
Specification of the aforesaid Patent No 1587 in the year of Our Lord One
thousand eight hundred and eighty two or otherwise is enveloped encased
ensheathed or similarly or suitably enclosed in or protected by the spongy india
Rubber or india rubber sponge thereby forming a negative element of a durable
character, Similarly in preparing the positive element consisting of metallic lead
the said metallic lead may be compressed into a plate or other form and then be
enveloped encased ensheathed or similarly or suitably enclosed in or protected by
the Spongy india rubber or india rubber sponge in certain cases as for example
for batteries for Marine purposes or in other cases where the batteries are subjected
to vibrations movements or concussions the spongy india rubber or india rubber
sponge will form a convenient packing between the elements so as to act as a buffer
to and counteract such or other movements
Having now described and particularly ascertained the nature of my Invention
and the manner in which the same is or may be performed I would observe in
conclusion that I do not claim broadly and generally the use of spongy india
rubber or india rubber sponge in all Secondary Batteries as I am aware that it has
been proposed to employ it in certain classes of such batteries but what I consider
to be novel and original and therefore claim as the Invention secured to me by the
bereinbefore in part recited Letters Patent is.―
The improvements in Secondary Batteries consisting in encasing enveloping
enclosing or otherwise protecting a negative element of peroxide of lead and a.
positive element of metallic lead (both or either of them) by or in spongy india
rubber or india rubber sponge whether the same be or be not utilised as a buffer
between the elements all substantially as herein before described
In witness whereof I the said Astley Paston Price have to this my
Specification set my hand and seal this ninth day of December in the
vear of Our Lord One thousand eight hundred and eighty two.