IMPROVEMENTS IN SECONDARY BATTERIES
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by the said John Scudamore Sellon at
the Office of the Commissioners of Patents on the 15th June 1882.
JOHN SCUDAMORE SELLON of Hatton Garden in the County of Middlesex,
"IMPROVEMENTS IN SECONDARY BATTERIES"
My Invention relates to the preparation of plates for secondary batteries and
consists in making perforations or interstices in such plates of such a form that the
material with which the perforations or interstices are packed will be keyed or
firmly retained in position by the shape of such perforations or interstices -This
object may be effected by so constructing the punches or instruments with which
the perforations or interstices are made as that when operated upon the plates they
will form perforations or interstices of the shape required or the perforations or
interstices may be first made in the ordinary way and afterwards countersunk or
otherwise altered in shape to secure the same result or the moulds in which the
plates are cast may be so formed that a form of hole or interstice such for instance
as a single or double cone is produced thus effecting the purpose required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Scudamore Sellon in the Great Seal Patent Office on the
4th December 1882.
JOHN SCUDAMORE SELLON of Hatton Garden in the County of Middlesex
"IMPROVEMENTS IN SECONDARY BATTERIES"
My Invention relates to the preparation of plates for Secondary Batteries and
consists in making perforations or interstices in such plates of such a form that the
material with which the perforations or interstices are packed will be keyed or
firmly retained in position by the shape of such perforations or interstices-This
object may be effected by so constructing the punches or instruments with which
the perforations or interstices are made as that when they are caused to operate
upon the plates they will form perforations or interstices of the shape required or
the perforations or interstices may be first made in the ordinary way and after-
wards countersunk or otherwise altered in shape to secure the same result or the
moulds in which the plates are cast may be so formed that a form of hole or
interstice (such for instance as a single or double cone) is produced thus effecting
the purpose required
Figures 1 to 10 of the accompanying drawings illustrate in section and side
views portions of plates or retainers having perforations or interstices of the
character described-Figure 11 represents a number of different forms which these
interstices may take but I do not limit myself to these precise forms nor to any
relative proportions in thickness of the plates or retainers in any of their parts
nor to the exposure uncovered (as shown in the drawings) of any portion or
portions of such plates which it may be desirable to cover or coat-It is obvious
that the plates or retainers may be so formed that they may be partially or entirely
covered or coated on their surfaces with the material employed-the edges of such
of the forms of cells or receptacles as are capable of being so reduced being tapered
to any degree found practicable or desirable and being, if so required depressed
between the level of the surrounding edge or outside rim (if any) of the plate-or
there may be ribs or raised portions left for strength or conductivity
Having now described and particularly ascertained the nature of the said
Invention and the manner in which the same is or may be used or carried into
effect I would observe in conclusion that what I consider to be novel and original
and therefore claim as the Invention secured to me by the hereinbefore in part
recited Letters Patent is:-
Forming plates or retainers for secondary batteries with interstices or perforations
or spaces which key lock or firmly retain in position the material with which the
plates are packed substantially as herein before described with reference to the
several figures of the accompanying Drawings.-In witness whereof I the said
John Scudamore Sellon have to this my Specification set my hand and seal the
Second day of December in the year of our Lord One thousand eight hundred and
tv two
eighty
Witness
WILLIAM BARNARD
78 Hatton Garden
JOHN SUUDAMORE SELLON
(L.S.)