Improvements in Secondary Battery Plates, Elements, or Supports.
Year: 1889

page_text: Date of Application, 26th Jan., 1889
Complete Specification Left, 11th Oct., 1889-Accepted, 16th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Secondary Battery Plates, Elements, or Supports.
1 JOHN SCUDAMORE SELLON of Hatton Garden in the County of Middlesex
Gentleman do hereby declare the nature of this invention to be as follows:-
The object of my invention is to so construct interstical supports or grids of the
plates of secondary batteries that the packed active material shall not be separated into
distinct pellets plugs or pieces as is the case in the plates now generally used but shall
be distributed in a continuous mass throughout the plate or throughout any desired
extended portion thereof so that the active material in each individual plato is in con-
tact throughout the whole plate or throughout the required extended portion thereof.
To conveniently effect this 1 so cast the grid or support that its alternate ribs on
opposite sides instead of being coincident as hitherto are alternately reversely situated
respectively on each side and that their position is so arranged that the active material
when applied becomes interlaced as it were and securely held in position by such
alternation.
Dated this 26th
CT1000
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents for the said John Scudamore Sellon.
COMPLETE SPECIFICATION.
Improvements in Secondary Battery Plates, Elements, or Supports.
I JOHN SCUDAMORE SELLON of Hatton Garden in the County of Middlesex
Gentleman 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 :--
The object of my Invention is to so construct interstical supports or grids of the
plates of Secondary batteries that the packed active material shall not be separated into
distinct pellets plugs or pieces as is the case in the plates now generally used but shall
be distributed in a continuous mass throughout the plate or throughout any desired
extended portion thereof so that the active material in each individual plate is in
contact (that is no part of such active material is wholly separated from the other
parts of the active material) throughout the whole plate or throughout the required
extended portion thereof.
To conveniently effect this I so cast or form the grid or support that its alternate
ribs on opposite sides instead of being coincident as hitherto are alternately reversely
situated respectively on each side and that their position is so arranged that the active
material when applied becomes interlaced as it were and securely held in position by
such alternation.
The ribs on
The accompanying drawing will serve to better explain my Invention. Figure 1 is
a side view of a part of a support or grid made according to my Invention. Figure 2
is a section on the line 1-2 of Figure 1. Figure 3 is a section on the line 3-4 of
Figure 1 and Figure 4 is a section on the line 5-6 of Figure 1.
one side of the plate are marked a and those on the other side are marked b. It
will be seen that the said ribs a and b are so situated relatively to each other
that the rib or junctions of the ribs a, or the places at which the said ribs a
situated in one direction meet the ribs a situated in the other direction, are not
coincident with the like rib or junctions of the ribs but are situated roversely as
herein before explained and so that there are openings completely through the
support as at c through which the active material put into the plate or grid passes

page_text: and so is a continuous interlaced mass in the sense herein before explained and as
shewn in Figure 4. I do not limit myself to one particular way of forming the
supports or grids but I prefer to cast them all in one piece by means of a mould
which is shewn in section in Figure 5 the recesses in the mould of course corre-
sponding to the ribs of the grid or support to be cast.
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 :-
--
1st. In or for secondary battery plates or elements supports or grids having ribs
arranged as explained with regard to the ribs a and b so that the active material of
the plate or of any desired extended portion of the plate is a continuous interlaced
mass substantially as herein before explained.
grids with ribs
2nd. In or for Secondary battery plates or elements supports or
arranged as hereinbefore explained and claimed by the preceding claiming clause the
said supports or grids being formed complete as one casting.
Dated this 10th day of October 1889.
JOHN S. SELLON.