Storage Plates for Accumulators and Process for the Manufacture of the same.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Storage Plates for Accumulators and Process for the Manufacture of
the same.
I, ERHARD GOLLER, of No. 9, Mathildenstrasse, Nürnberg, Germany, Elec-
trician, do hereby declare the nature of this invention to be as follows:-
The present invention relates to a new storage plate for accumulators and to
a process for the manufacture of the same.
In the accompanying illustrative drawings. Figure 1 is a view in end eleva-
tion of the new storage plate, Figure 2 is a view in side elevation of the same,
and Figures 3 and 4 are sections on the line AB of Figure 2 showing two
different modes of construction.
The new storage plate consists of a number of small frames which are
perforated or openworked after the manner of a lattice or grating. The con-
necting pieces serve to prevent the frames from bulging apart. Instead of
the rectangular. openings e, there may be employed perforations of any desired
shape. According to the capacity which the accumulators are to have, any
desired number of small frames are placed together with their broad sides
against each other and so as to leave between every two frames a small space
which is just wide enough to allow the exciting liquid to pass through. At
their undersides, the said frames are connected together by means of a soldered-
on single strip of lead d, and on their upper sides they are connected by means
of a soldered-on leaden strip which is provided with the well-known carrying
and connecting pieces s. If desired the frames may be simply soldered together
without the intermediary of the lead strip d. The hollow spaces & serve to
receive the active mass which is indicated in the drawing by cross-hatching.
According to one process for the manufacture of these storage plates the active
mass is pressed into the hollow spaces of the frames before the latter are com-
bined together to form a plate as above described. Then the active mass
constitutes small tablets having a very large surface exposed to the charging
current and to the chemical action. In order to keep these tablets securely
in the frames the inner sides are bevelled roofshape either inwardly or out-
wardly as shown in the cross sections (Figures 3 and 4). According to a
somewhat modified process the active mass is first inserted into the frames after
the frames have been combined together to form a plate. In this case the
mass constitutes a coherent core which is penetrated by the electrolyte in con-
sequence of its porosity (see Figure 4). The two outer frames may be closed
in externally by soldering on lead strips g. and they are preferably perforated
in order to allow of the passage of the electrolyte at these places also. The
most essential advantages of the new storage plates consist in the fact that a
comparatively large quantity of active mass can be conveniently inserted therein,
and that further the falling out of the mass is almost rendered impossible
because they are as it were enclosed in a leaden casing. Further, these storage
plates have a very large rapid surface, because especially in the case of the

page_text: first mentioned process of the manufacture there is the most favourable mode
of current supply conceivable right into the centre of the plate, and finally it
should also be noted that the form of the plates is extremely simple so that
they can be manufactured with simple tools and appliances.
Dated this 8th day of March 1899.
ROBERT E. PHILLIPS, Assoc.M.Inst.C.E., M.I.Mech.E.,
Chartered Patent Agent,
70, Chancery Lane, London, W.C., Associate Agent.
Storage Plates for Accumulators and Process for the Manufacture of
the same.
I, ERHARD GOLLER, of No. 9, Mathildenstrasse, Nürnberg, Germany, Elec-
trician, 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 present invention relates to a new storage plate for accumulators and to
a process for the manufacture of the same.
Referring to the drawings lodged with my Provisional Specification, Figure 1
is an elevation of the new storage plate, Figure 2 is a side elevation of the
same, and Figures 3 and 4 are sections on the line A-B of Figure 2 showing
two different modes of construction.
The new storage plate consists of a number of small frames a which are
perforated or openworked after the manner of a lattice or grating. The con-
necting pieces serve to prevent the frames from bulging apart. Instead of
the rectangular openings c, there may be employed perforations of any desired
shape. According to the capacity which the accumulators are to have, any
desired number of small frames are placed together with their broad sides
against each other and so as to leave between every two frames a small space.
which is just wide enough to allow the exciting liquid to pass through. At
their undersides, the said frames are connected together by means of a soldered-
on single strip of lead d, and on their upper sides they are connected by means
of a soldered-on leaden strip o which is provided with the well-known carrying
and connecting pieces s. If desired the frames may be simply soldered together
without the intermediary of the lead strip 7. The hollow spaces e serve to
receive the active mass which is indicated in the drawing by cross-hatching.
According to one process for the manufacture of these storage plates the active
mass is pressed into the hollow spaces of the frames before the latter are com-
Then the active mass
bined together to form a plate as above described.
constitutes small tablets having a very large surface exposed to the charging
current and to the chemical action. In order to keep these tablets securely
in the frames the inner sides are bevelled roof shape either inwardly or out-
wardly as shown in the cross sections (Figures 3 and 4). According to a
somewhat modified process the active mass is first inserted into the frames after
the frames have been combined together to form a plate. In this case the
mass constitutes a coherent core which is penetrated by the electrolyte in con-
sequence of its porosity (see Figure 4). The two outer frames may be closed
in externally by soldering on lead strips g, and they are preferably perforated
in order to allow of the passage of the electrolyte at these places also. The
most essential advantages of the new storage plates consist in the fact that a
comparatively large quantity of active mass can be conveniently inserted therein,

page_text: and that further the falling out of the mass is almost rendered impossible
because they are as it were inclosed in a leaden casing. Further, these storage
plates have a very large operative surface, because especially in the case of the
first mentioned process of the manufacture there is the most favourable mode
of current supply conceivable right into the centre of the plate, and finally it
should also be noted that the form of the plates is extremely simple so that
they can be manufactured with simple tools and appliances.
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:
(1) Storage plates for accumulators, characterised by small narrow lead
frames a which are formed with perforations into which the active mass is
contained, and which said lead frames are combined together to form a plate
by being placed together with their broad sides against each other, and being
connected together by means of lead strips d, e, or by simple soldering together.
(2) A process for the manufacture of the storage plates specified in Claim 1,
characterised by the fact that the active mass is first pressed into the per-
forations c of the small frames a, and then afterwards the several frames are
combined together with a small distance between the same so as to form a
storage plate.
(3) A process for the manufacture of the storage plates specified in Claim 1,
characterised by the fact that the active mass is introduced into the per-
forations c only after the frames have been already combined together so that
the active mass forms a coherent core.
(4) Storage plates for accumulators constructed and arranged substantially
as described and shown.
ROBERT E. PHILLIPS, Assoc. M.Tust.C.E., M.1. Mech.E.,
Chartered Patent Agent,
70, Chancery Lane, London, W.C., Associate Agent.