IMPROVEMENTS IN SECONDARY VOLTAIC BATTERIES, APPLICABLE ALSO TO SINGLE FLUID PRIMARY BATTERIES
Year: 1884

page_text: I, CHARLES MOSELEY of the Chapelfield Works Manchester in the County of
Lancaster Manufacturer, do hereby declare the nature of my invention for
"IMPROVEMENTS IN SECONDARY VOLTAIC BATTERIES, APPLICABLE ALSO TO SINGLE
FLUID PRIMARY BATTERIES to be as follows:-
These Improvements have for their object the prevention of contact or short
circuit between the plates or electrodes of secondary voltaic batteries and between
the plates or electrodes of primary batteries of the single fluid type.
In carrying out my Invention I interpose separators between the plates or
electrodes of the battery. These separators are so constructed as to maintain the
required distance between the plates and to prevent contact. They may be made
of any suitable material such as gutta percĥa celluloid or hard vulcanized india
rubber but I prefer the latter.
T
Each separator may be in the form of a perforated plate or sheet having short
pins studs or pointed projections attached to or moulded or otherwise formed upon
each face of the sheet or it may be in any other convenient form in which per-
forations or passages are formed through the separator and in which the contact of
the separator with the plate is made by projecting points studs pins or lines upon
each face of the separator. If the contact is made by lines or linear projections
they should be vertical to the bottom of the separator or at an angle greater than
the angle of repose in order that any detached material may fall freely to the
bottom of the cell.

page_text: I, CHARLES MOSELEY of the Chapelfield Works Manchester in the County of
Lancaster Manufacturer do hereby declare the nature of my invention for
IMPROVEMENTS IN SECONDARY VOLTAIC BATTERIES APPLICABLE ALSO TO SINGLE
FLUID PRIMARY BATTERIES and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :-
These Improvements have for their object the prevention of contact or short
circuit between the plates or electrodes of Secondary voltaic batteries and between
the plates or electrodes of Primary batteries of the single fluid type.
And in order that my Invention may be more readily understood and carried
into practical effect I have hereunto appended a 'sheet of Drawings having marked.
thereon letters of reference, similar letters denoting similar parts in the various
figures.
In carrying out my Invention I interpose Separators between the plates or
electrodes of the battery. These Separators are so constructed as to maintain tho
required distance between the plates and to prevent contact. They may be made
of any suitable, material such as gutta percha, celluloid or vulcanized india rubber
but I prefer the latter.
Referring to the appended Drawings Fig 1 shows a front view, Fig 2 a horizontal
section along the line A. B and Fig 3 a vertical section along the line C D Fig
of a convenient form of a Separator constructed according to these Improvements.
Fig 4 represents a vertical section of a battery having the Separators applied
thereto.
Each Separator consists of a grating or perforated plate or sheet having pro-
jecting parts of small area upon each side.. These projections are preferably
triangular in section, continuous from the top to the bottom of the Separator and
opposed to each other as shown at a a Figs 1 2. and 3. The vertical bars formed
by the projections a are connected together to form a grating by the horizontal
bars 6 having the thickness of the plate or sheet from which the Separator is
formed. The perforations c c are made as large as possible consistently with a
retention of sufficient strength. I prefer not to remove those portions of the
plate d d' which are above the top and below the bottom horizontal bars. The
Separators may be moulded to the required. form by well known means while the
material of which they are forined is in a plastic condition.
Instead of having the form herein before described and illustrated on the
accompanying Drawings the Separators may be in the form of perforated plates
having short pins, studs or pointed projections on each side or face of the plates or
sheets or they may be in any other convenient form in which perforations or
passages are formed and in which the contact of the Separators with the battery
plates is made by projecting points, studs, pins lines or the like upon each face of
the Separators. If the contact is made by lines or linear projections as illustrated
on the Drawings and hereinbefore described they should be vertical to the bottom

page_text: of the Separator or at an angle greater than the angle of repose so that any
material detached from the surface of the battery plates may fall freely to the
bottom of the cell.
If the lower ends of the Separators are left solid as shown at d¹ Figs 1 and 3
and they reach to the bottom of the cell and below the battery plates e as shown
in Fig 4 any active or other material falling from the surfaces of any one battery
plate will be isolated and short circuit arising from contact of two or more plates
with fallen material will be prevented.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I desire it to be
understood that what I claim is
In Primary or Secondary Voltaic Batteries, Separators constructed substantially
as hereinbefore described and set forth.