Improvements in Secondary Batteries.
Year: 1892

page_text: Date of Application, 31st Dec., 1892
Complete Specification Left, 1st July, 1893-Accepted, 5th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in Secondary Batteries.
I FRANK KING of 4 Great Winchester Street in the City of London
Electrical Engineer do hereby declare the nature of this invention to be as
follows:-
My invention relates to improved means by which the plates of opposite
denomination in a secondary battery are separated and insulated from each other
otherwise than through the electrolyte.
According to my invention I provide the plates (preferably the pure or spongy
lead plates or plates of like denomination) with ribs pins or the like projecting
from the surface of the plate a distance slightly less than the distance apart at
which the plates are to be maintained. At the outermost face or edge of each of
the said projecting ribs or line or row of pins or the like I place a piece or strip
of insulating and acid resisting substance which is held in position against the
opposing plate by the said ribs or pins or the like and is preferably so shaped as
to deflect away from the rib, pin, or the like any material resulting from the
exfoliation of the surface of the opposing plates or any particles of material which
may fall out of the said plates.
Dated this 31st day of December 1892.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Secondary Batteries.
I, FRANK KING of 4 Great Winchester Street in the City of London, Electrical
Engineer do hereby declare the nature of this invention and in what manner
the same is to he performed to be particularly described and ascertained in and by
the following statement :-
My invention relates to improved means by which the plates of opposite
denomination in a secondary battery are separated and insulated from each other
otherwise than through the electrolyte.
According to my invention I provide the plates (preferably the pure, or spongy,
lead plates, or plates of like denomination) with ribs, or with lines or rows of pins,
or the like, projecting from the surface of the plate a distance slightly less than
the distance apart at which the plates are to be maintained. At the outermost
face, or edge, of each of the said projecting ribs, or of each of the lines, or rows
of pins, or the like, I place a piece or strip of insulating and acid resisting
substance which is held in position against the opposing plate or plates by the said
ribs, or pins or the like and is preferably so shaped as to deflect away from the
rib, pin or the like, any material resulting from the exfoliation of the surface of
the opposing plate or plates, or any particles of material which may fall out of the
said plate or plates.
I will describe with reference to the accompanying drawing what I consider the
best way of carrying out my invention, but I do not limit myself to the precise
details shewn.
The accompanying drawing represents some plates of a battery to which my
invention is applied. It is to be understood that the invention is not limited to the
form of plate shewn.

page_text: Figure 1 is a side view. Figure 2 a plan and Figure 3 a section in a plane at
right angles to Figure 1. A are the plates of one denomination and B are those
of the other denomination. These latter are formed with ribs b on each side
extending vertically along the plate and most conveniently cast with it. Upon
each of the ribs b a channelled or trough shaped strip c of ebonite, or other
insulating, and acid resisting material is placed which strips bear against the
adjacent plate or plates. The strips and the ribs upon which they are placed, are
shewn as being somewhat of a wedge-shape to deflect away any material may fall
or exfoliate from the opposed plate. The ribs b may be in any convenient number,
and they may be continuous, or non-continuous, or they may be substituted by
rows of projections or pins upon which the strips c are placed. In place of the
strips c and ribs being of the wedge-shape shewn they may be of other shape for
instance they may be shaped as shewn in Figure 4 or they may be of the shape
shewn in Figure 5 and be held in grooves, or openings in the ribs or the
substitutes therefor, but, in all cases, the strips care to be continuous, and they
should be placed vertically or approximately so. Although I have shewn ribs b
on two sides of alternate plates there may be ribs only on one side of each plate.
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 :-
In, or for, secondary batteries, plates with ribs, or projections, from one side, or
from both sides with continuous strips, of insulating and acid resisting material,
placed thereover, or held therein, and vertically disposed or approximately so,
substantially as, and for the purpose hereinbefore described, and illustrated by the
accompanying drawing.
11
ليمي
1
1000
J. H. JOHNSON & Co.,
Agents.