Improvements in Electric Batteries.
Year: 1888

page_text: Date of Application, 30th Oct., 1888
Complete Specification Left. 27th July. 1889-Accepted. 31st Aug.. 1889
PROVISIONAL SPECIFICATION.
Improvements in Electric Batteries.
1. PAUL SCHOOP, of Oerlikon, near Zurich, Switzerland, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention has for its object to increase the useful effect and the duration or
"life" of the elements of electric batteries in particular of secondary or storage
batteries or accumulators and has reference to an improved method or means for
carrying and holding the electrodes, and for coupling or connecting them. The
improvements in secondary or storage batteries relate more particularly to the
arrangement of the positive and negative plates and to the construction of the cell.
On the annexed sheet of drawings
Figs. 1 and 2 are respectively a longitudinal section and a plan of a cell according
to this invention with double current supply, i.e. with each face of each negative
plate opposed to a face of a positive plate. Fig. 3 is a cross section shewing plates
in position.
Fig. 4 is a plan of the same.
The last two figs. show the mode of connection of the plates in a diagrammatic
manner only.
The improved cell ensures good and secure insulation with an exact distance
between the solid elements. When glass used as the material of the cell, a
completely free insight can be obtained in every part of the cell.
As the material of the improved cell there may be employed glass, porcelain,
caoutchouc, gutta percha, ebonite wood or other suitable material which may be
impregnated, or lined with lead or other suitable substance. On two longitudinal
sides a of the cell are arranged fillets or ribs a' at a suitable height provided with
grooves or notches a° arranged at distances apart corresponding to the distance
between the positive and negative plates. On the bottom of the cell are formed
fillets or ribs which are provided with notches & corresponding to the distance of
the positive plates from one another. In the notches or grooves aº are inserted the
plates c and d.
In the notches 1° of the bottom ribs bare inserted the positive plates d.
The negative plates c are connected with one another by two lead strips e which
serve as feet or supports and also as conductors of the current.
The positive plates are connected by two lead strips f which serve to convey the
current away. These lead strips may have the form of handles for enabling the
sets of plates to be readily placed into and lifted out of the cell.
The improved mode of distribution of current imparts to the plates or elements a
"life" of at least twice the duration of plates to which current is supplied from one
side only when worked to the same extent. The useful effect is also increased as the
resistance of the lead plate is reduced. The improved cell may also be employed
with a current supply from one side only, and in this case, the arrangement of
Volta's "cascades' or vase batteries is employed. The notched fillets and ribs
may be movable; or the notches or grooves may be formed in the wall of the cell,
to a certain height only, or to the entire height of the wall. In this case, the two
longitudinal sides form ribbed or corrugated surfaces.
«
"
The entrance of the current in one set of plates (for instance the positive plates)
may take place at the centre of the plate which may be of round or polygonal form.
In the other set of plates (for instance, the negative plates) the current may pass
out at a number of points arranged symetrically on the circumference of the plate.
The surfaces of the plates may be horizontal, vertical, or inclined.
Dated this 30th day of October 1888.

page_text: COMPLETE SPECIFICATION.
Improvements in Electric Batteries.
I, PAUL SCHOOr, of Oerlikon, near Zurich, Switzerland, 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 :-
This invention has for its object to increase the useful effect and the duration or
"life" of the elements of electric batteries in particular of secondary or" storage
batteries or accumulators and has reference to an improved method or means for:
carrying and holding the electrodes, and for coupling or connecting them.
The improvements in secondary or storage batteries relate more particularly to the
arrangement of the positive and negative plates and to the construction of the cell.
On the annexed sheet of drawings:
11
Figs. 1 & 2 are respectively a longitudinal section and a plan of a cell according
to this invention with double current supply, i.e. with each face of each negative
plate opposed to a face of a positive plate.
Fig. 3 is a cross section showing plates in position.
Fig. 4 is a plan of the same.
The last two Figs. show the mode of connection of the plates in a diagrammatic
manner only.
The improved cell ensures good and secure insulation with an exact distance
between the solid elements. When glass is used as the material of the cell a
completely free insight can be obtained into every part of the cell.
As the material of the improved cell there may be employed glass, porcelain,
caoutchouc, gutta-percha, ebonite, wood, or other suitable material which may be
impregnated, or lined with lead or other suitable substance.
On two longitudinal sides a of the cell are arranged fillets or ribs a² at a suitable
height, provided with grooves or notches aº arranged at distances apart corresponding
to the distance between the positive and negative plates.
On the bottom 6 of the cell are formed fillets or ribs which are provided with
notches corresponding to the distance of the positivo plates from one another.
In the notches or grooves a° are inserted the plates c & d.
In the notches of the bottom ribs b are inserted the positive plates d. The
negative plates c are connected with one another by two lead strips e which serve as
feet or supports and also as conductors of the current. The positive plates aro
connected by two lead stripsf which serve to convey the current away. These lead
strips may have the form of handles for enabling the sets of plates to be readily
placed into and lifted out of the cell.
The improved mode of distribution of current imparts to the plates or elements a
"life" of at least twice the duration of plates to which current is supplied from one
side only, when worked to the same extent.
The useful effect is also increased as the resistance of the lead plate is reduced.
The improved cell may also be employed with a current supply from one side only
"vase batteries "
and in this case, the arrangement of Volta's "cascades
employed.
"
or
19
The notched fillets and ribs may be moveable; or the notches or grooves may be
formed in the wall of the cell, to a certain height only, or to the entire height o
the wall. In this case, the two longitudinal sides form ribbed or corrugated
surfaces.
The entrance of the current in one set of plates (for instance the positive plates
may take place at the centre of the plate which may be of round or polygonal form
In the other set of plates (for instance, the negative plates) the current may pas
out at a number of points arranged symmetrically, on the. circumference of th
plate.
The surfaces of the plates may be horizontal vertical or inclined.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The connection of the plates in a secondary battery element in the manner above
described to obtain a symmetrical entrance and exit of the current; the one series
of plates being connected together by a strip of lead on which each (say) positive
plate is soldered at the centre and the other series of plates connected together by
several strips of lead arranged symmetrically on the circumferences of the (say)
negative plates.
2. The connection of the plates in a secondary battery element in such a manner
that the current enters at the two top edges of the positive plates and passes out at
the two bottom edges of the negative plates, the plates being separated from each
other by the wholly or partially ribbed sides of the enclosing vessel, as described.
3. The improved electric cell, constructed and arranged as described with reference
to and shown in the drawings annexed.
11
1000
P. SCHOOP,.
Per L. W.