A Separator for Flates of secondary DaTION.
Year: 1899

page_text: Date of Application, 28th Oct., 1899
Complete Specification Left. 27th June, 1900-Accepted, 28th July, 1900
A Separator for Flates of secondary DaTION.
I, HENRY LEITNER, of No. 207, Piccadilly, in the County of London, Electrical
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to the construction of separators for plates of secondary
batteries in such a manner that while they afford good support for the plates
and their active material they allow free circulation of the electrolyte.
the
Each plate according to my invention is made of non-conducting material
such as ebonite in the form of a grating having square or rectangular holes
through it arranged in vertical rows. One side of the plate is flat so as to bear
On the other side between
against and support the active material.
of semi-
vertical rows of holes are
preferably
projecting ribs
circular section the intervals between them serving as channels for free
passage of the electrolyte. Two of the plates may be made in one piece which is
folded double at the middle so as to take a battery plate between the folds, a
hole being made through the bent part for passage of the conducting lug.
Dated this 28th day of October 1899.
ABEL & IMRAY,
Agents for the Applicant.
A Separator for TaES OF DECary
I, HENRY LEITNER, of No. 207, Piccadilly, in the County of London, 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:-
My invention relates to the construction of separators of the plates of secondary
voltaic batteries, in such a manner that, while they afford good support for the
plates and their active material, they allow free circulation of the electrolyte as
I shall describe referring to the accompanying drawings.
Fig. 1 is a plan and Fig. 2 is a perspective view shewing parts of the secondary
battery plates kept apart by separators according to my invention.
Figs. 3 and 4 are similar views shewing a modification.
As shewn in Figs. 1 and 2 each separator plate a is made of nonconducting
material such as ebonite in the form of a grating having square or rectangular
One side of this separator is flat
holes through it, arranged in vertical rows.
so as to bear against and support the active material of the battery plate. On

page_text: the other side between the alternate vertical rows of holes are projecting ribs
which may be of semi-circular section as shewn, so that when two separator plates
are brought together the vertical ribs of the one bear against the parts of the
other between the holes where there are no ribs. The spaces between the ribs
constitute channels e for free passage of the electrolyte.
Two of the plates may be made in one piece which is folded double at the middle
so as to take a battery plate between the folds, a hole being made through the
bent part for passage of the conducting lug..
As shewn in Figs. 3 and 4 the ribs may be made flat instead of semi-circular
and each separator plate may be cemented to the ribs of the other.
Instead of using two separator plates with their alternate ribs united face to
face, two plates a and b may be used, the one a having ribs, and the other b
having no ribs but cemented to the ribs of the other as shewn in Fig. 5.
In some cases I place these two separator plates together in such a way that
the holes through the one do not coincide with those through the other, there
still being space for circulation between the ribs.
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:
ا:
1. A separator for plates of secondary batteries consisting of a plate of non-
conducting material having holes through it arranged in vertical rows, and ribs
projecting on one side, substantially as, and for the purpose set forth.
2. A modified separator consisting of two plates of the kind above referred to,
made with flat ribs, those of each plate cemented to the other plate.
3. A modified separator consisting of two plates with holes as above referred
to, the one plate having ribs cemented to the other plate, which has no ribs.
Dated this 27th day of June 1900.
ABEL & IMRAY,
Agents for the Applicant.