Improvements in Electricity Accumulators.
Year: 1898

page_text: Date of Application, 1st Sept., 1898
Complete Specification Left, 31st May, 1899-Accepted, 1st July, 1899
Improvements in Electricity Accumulators.
We, ALEXANDER SCHAUSCHIEFF, Electrical Engineer, and ALBERT EDWARD
HODGSON, Engineer, both of 10, Harrison Road, Halifax, in the County of York,
do hereby declare the nature of this invention to be as follows:-
The invention relates to the grids of such accumulators and the object of the
invention is by an improved construction to provide grids that possess the required
degree of strength or rigidity with comparative lightness whilst insuring the lock-
ing or dovetailing in of the paste and thereby securely holding the latter in
position.
The sheets of lead from which the grids are made are stamped, pressed, or rolled
so as to form on one face of the grid, square or rectangular holes, the metal around
the holes on this side of the sheet being preferably slightly folded or rounded
in convex form whilst the metal on the other side of the grid is formed around
the grid and around each hole in V shaped recesses.
The paste when applied forms heads in the convex or funnel shaped holes on
one side of the sheet, and on the other side of the sheet the paste enters the V
recesses, so that when set it is fixed firmly in the grid and cannot pass therefrom
from either side of the grid.
The plates so made may be used as separate plates or may be used in pairs.
In the latter case the plates may be secured together by burning or soldering the
borders of the plates or grids together with the apexes of all the strips in contact
with each other, whereby recesses or chambers are formed for the reception of the
paste, with their sides bevelled inwards, thereby making the openings on both
sides of the chamber or recess smaller than the interior.
Dated this 31st day of August 1898
Improvements in Electricity Accumulators.
We, ALEXANDER SCHAUSCHIEFF, Electrical Engineer, and ALBERT EDWARD
HODGSON, Engineer, both of 10, Harrison Road, Halifax, in the County of York,
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 follow-
ing statement:-
This invention relates to improvements in the manufacture of accumulator
plates the object being to construct a leaden foundation plate or grid in such a

page_text: manner that a series of recesses and projections are provided into and onto which
the paste is placed and thereby securely maintained in position. Plates so made
are comparatively light and at the same time suffciently strong and rigid. The
plates may be made either single or double as desired.
-
Such being the nature and object of our said invention, the following is a com-
plete description of same reference being had to the annexed drawings, in which:
Fig. 1 is a front view of part of a single foundation plate or grid with square
or rectangular holes.
Fig. 2 is an end sectional view on line X X of Fig. 1.
Fig. 3 is a sectional plan view of Fig. 1 the paste being indicated by the
sectional lines.
Fig. 4 is a sectional plan view of a double grid or plate.
Fig. 5 is a similar view to Fig. 4 the paste therein being indicated by the
sectional lines."
Fig. 6 is a front view of a part of a double foundation plate or grid with round
holes.
Fig. 7 is a sectional plan view of Fig. 6.
According to this invention, to form a single grid or foundation plate (see Figs. 1,
2 and 3) we take a sheet of lead of the required size, and stamp, roll, press, or
perforate same from one side with a number of holes 1 square or rectangular (see
Figs. 1 to 5) or circular (see Figs. 6 and 7). The holes I are so formed that their
edges 2 are turned over or at an angle to the face of the plate 1 (see Fig. 2) and
by and between the turned over edges 2 are formed the grooves or channels 3.
Flanges or strengthening ribs 4 are formed around the edges of the plate, and the
strip 5 is left for attaching the connections thereto.
To construct a double plate or grid (see Figs. 4, 5, 6, and 7) two single plates
as above described are placed back to back, preferably with the apexes of the
turned over edges 2 adjacent, when the holes 1 are square or rectangular (see
Figs. 4 and 5); and with the centres of the holes 1 opposite blanks when the holes 1
are circular (see Figs. 6 and 7) and the outer edges or ribs 4 of each plate soldered
or burnt in " together.
65
When the holes 1 are circular and the plates constructed as in Figs. 6 and 7 the
intervening spaces in or between the sheet of lead are less.
The paste when laid on the single or double plate fills all the hollows, spaces,
and interstices formed by the turned over edges and the holes as clearly shewn by
Figs. 3 and 5, and the paste is thereby securely locked and held in position.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:
(1) The accumulator plate or grid as herein described and substantially as illus-
trated by Figs. 1, 2, and 3 of the annexed drawings.
(2) The accumulator plate or grid as herein described and substantially as illus-
trated by Figs. 4 and 5 of the annexed drawings.
(3) The accumulator plate or grid as herein described and substantially as
illustrated by Figs. 6 and 7 of the annexed drawings.
Dated this 26th day of May 1899.
ALEXANDER
SCHAUSCHIEFF.
ALBERT EDWARD HODGSON.
By their Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax.