Improved Separator for the Plates of Secondary Batteries.
Year: 1897

page_text: Date of Application, 5th Feb., 1897
Complete Specification Left, 5th Nov.. 1897-Accepted. 8th Jan.. 1898
PROVISIONAL SPECIFICATION.
Improved Separator for the Plates of Secondary Batteries.
I, ERNEST SANFORD NEW of the Voltage, Woking, Surrey, Electrical Engineer,
do hereby declare the nature of this invention to be as follows:-
My invention consists in an arrangement by means whereof the plates of
secondary batteries may be securely held at a given distance apart and also
supported at a certain distance above the bottom of the vessel in
which they are arranged while at the same time the whole section "
is secured together in such a manner that it may be lifted out of the containing
vessel whenever desired without the danger of short circuiting by bringing any
of the positive and negative plates into conducting contact with one another.
To carry out my invention I take sheets or plates of ebonite vulcanite celluloid
wood or other easily perforable insulating material of somewhat greater width
than the height of the plates of the section to which the separator is to be applied
and of a length somewhat greater than the whole length of the section of plates.
I take two or more of the plates or sheets of insulating material above referred to
and cut out therein longitudinal rectangular holes to fit the battery plates it is
desired to separate leaving between each hole a strip of the material equal in width
to the distance at which it is desired that the plates of the section shall be separated
from one another.
These holes are so arranged as to come nearly up to one side of the sheet but
to leave about an inch or more of the material unperforated on the other side.
When, the section is arranged in position for insertion into the vessel which it is
ultimately to occupy two or more of the plates or sheets of insulating material
as perforated are slipped over the battery plates and brought into a vertical
plane. In this position, in which the larger unperforated side should be arranged
at the bottom of the section forming "a bridge" for the same, the separating
sheets are bound together at their four corners at any desired distance apart by
cross bars of the same material which is either rivetted, dovetailed, mitred, or pinned
in position by acid proof cement, or at such other point as may be required to make
the whole structure rigid.
Dated thin and do of Waal 1807
Σπιριονου ώσματα 10.
*SALIA Fron TO COOPY TATTO
I, ERNEST SANFORD NEW of the Voltage, Woking, Surrey, Electrical Engineer,
35 do hereby declare the nature of my invention and in what manner the same is
[Price 8d.]

page_text: to be performed to be particularly ascertained and described in and by the following
statement:
$
My invention consists of an arrangement by means whereof the plates of secondary
batteries may be securely held at a given distance apart and also supported at a
certain distance above the bottom of the vessel in which they are arranged while at the
same time the whole "section is secured together in such a manner that it may
be lifted out of the containing vessel whenever desired without the danger of short
circuiting by bringing any of the positive and negative plates into conducting
contact with one another.
In order that my invention may be the more readily understood I refer to the
accompanying sheet of drawings which shows an assemblage of accumulator
plates or "section" provided with and secured by my improved separator.
"
To carry out my invention I take a sheet or plate of ebonite, vulcanite, celluloid,
wood, or othereasily perforable insulating material S of somewhat greater width
the height of the plates to which the separator is to be applied and of a length
somewhat greater than the whole length of the " section or assemblage of plates.
In this plate $ I cut out the same number of longitudinal rectangular holes as
there are plates P P in the "section" and of slightly greater width and length
than the plates so that the whole sheet of insulating material S may be slipped
over the ends of the plates and brought into the vertical position in which it is
shown in the drawings. A precisely similar insulating plate S perforated with
longitudinal holes of the same size is slipped over the further end of the plate and
also brought into a vertical position. Cross pieces C C one at the top and one
at the bottom or it may be one or more at intermediate points if it be desired to give
greater rigidity to the whole structure are dovetailed or morticed into the top and
bottom corners of the plates S and S¹ and the same method of securing
the plates S and S¹ is employed on the opposite side of the section which
is not visible in the drawing. When the substance employed for
structing my separator is celluloid which is the material I prefer to employ
the distance pieces C C and the plates S S₁ are secured together by means of
celluloid-acetone cement. When wood or ebonite or other insulating material
is employed the joints between C C and S¹ may be secured by rivets preferably
of lead.
con-
It will be seen from inspection of the drawing that the plate S is not perforated
beyond within some considerable distance of the bottom and this unperforated
portion forms the bridge or stand which keeps the plates at a proper elevation
from the bottom of the vessel in which they are contained.
When the section is arranged in position in the separator and the distance
pieces CC-secured in position a second pair of distance pieces DD are morticed
dovetailed or cemented across in the position shown in the drawing namely close
up to the lugs LL which conduct the current to and from the plates PP. This is
done for the purpose of preventing any shifting of the plates when the whole section
is lifted out or inserted into the containing vessel.
When constructed and put together as thus described my separator rigidly
secure the plates at the proper distance apart, provides a bridge or stand for keep-
ing them at the proper distance from the bottom of the containing vessel and
also projections which serve to prevent the section coming into contact with the
sides of the vessel on two sides of the whole section. While the rigidity of the
whole system enables the section to be lifted out of or replaced in the containing
vessel by either of the lugs LL without danger of the plates shifting or coming
into contact with one another and so giving rise to a short circuit."
66
Having now particularly ascertained and described the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is
i
“The improved separator of insulating material for secondary batteries for secur-

page_text: ing the plates at a fixed distance apart insulating them from sides and bottom
of the containing vessel and forming at the same time a supporting bridge or stand
arranged and constructed substantially as shown and described.
Dated this 5th day of November, 1897.
ERNEST SANFORD NEW.