Improvements in Storage Batteries.
Year: 1898

page_text: Date of Application 17th Oct., 1898
Complete Specification Left, 28th June, 1899-Accepted, 19th Aug., 1899
Improvements in Storage Batteries.
I, WILLIAM JOSEPH STILL, of 70, Yorkville Avenue, in the City of Toronto, in the
County of York, in the Province of Ontario, Canada, Electrician, do hereby declare
the nature of this invention to be as follows:- and in what manner the same is to
be performed, to be particularly described-and-ascertained in and by-the-following
statement.
My invention relates to improvements in storage batteries and the object of the
invention is to produce a light, compact and durable cell capable of sustaining its
voltage under very rapid discharges and it consists essentially of electrodes of coinb-
like form, which are suitably held together at the bottom and the terminals separated
from each other and supported by a suitably slotted bar of insulating material and
held from the bottom of the plate by an insulating bar, the parts being constructed
and arranged in detail as hereinafter more particularly explained.
Fig. 1, is a perspective view of my improved storage cell showing the arrangements
of the electrodes, the cell being partially in section.
Fig. 2, is a plan view.
Fig. 3, is a detail showing the construction of the electrodes.
Fig. 4, is a detail of the slotted insulating bar.
In the drawings like letters of reference indicate corresponding parts in each
Figure.
Each electrode is formed with a back plate A having stamped or formed out at the
sides thereof, the comb-like fingers or projections a. These fingers or projections are
cut out on the flat by any suitable cutting mechanism and then are each turned at right
angles to the plane of the plate A after which both groups at each side are bent
inwardly as indicated in Fig. 3, so as to be at right angles to the main portion A of
the plate.
It will thus be seen that the fingers a standing one directly above the other present
horizontal surfaces from end to end between which is pasted the active material as
indicated in Fig. 1, in which a¹ is the active material.
The top of the plate A is provided with a terminal tongue A¹. The two comb-
like sides of the electrode are held together by the elastic bands B, which permit
expansion and assist contraction. The bottom of each comb-like side of the electrode
is supported upon the insulating bar C provided with a bent end c and the bottom of
the slotted bar D, which embraces the comb-like side of the electrode, the slot not
extending to the bottom of the bar, thus holding the bar C away from the bottom of
the cell.
I will suppose that A is the positive electrode plate, then A² and A3 are other
electrodes formed precisely the same way with terminals A and A³. These electrodes

page_text: are formed precisely the same way with the exception that the comb-like sides a are
at less distances apart. The terminal tongues are preferably soldered together and
provided with a central hole. are lips forming part of the terminal tongues of the
largest electrode plate, which are bent around the terminal tongues A4 and A5. a³ is
a lip, which forms part of the larger electrode, and is bent around the bottom of the
adjacent electrodes. This lip a³ is shown on the negative electrode, which I wish
now to refer to.
E are the negative electrode, which are formed precisely the same way as the
positive electrodes except the active material is different. The form of the terminal
and of the other parts of the plate are precisely alike. The comb-like sides of each
group of electrodes are so arranged and placed between each other that each adjacent
side is of opposite polarity. The hole is made in the terminal of the plates A and E,
the adjacent terminals of the positive plate of one cell being connected to the negative
terminals of the next cell by a bolt and nut 23 extending through holes in the
terminal tongues and formed of rubber.
By a construction such as I describe it will be readily understood that space is
economized and the active material is preserved intact and the electrodes are
necessarily very light.
Dated the 17th day of October 1898.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
I, WILLIAM JOSEPH STILL, of 70, Yorkville Avenue, in the City of Toronto, in the
County of York, in the Province of Ontario, Canada, Electrician, 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 :-
My invention relates to improvements in storage batteries and the object of the
invention is to produce a light, compact and durable cell capable of sustaining its
voltage under very rapid discharges and it consists essentially of electrodes of comb-
like form, which are suitably held together at the bottom and the terminals separated
from each other and supported by a suitably slotted bar of insulating material and
held from the bottom of the plate by an insulating bar, the parts being constructed
and arranged in detail as hereinafter more particularly explained with reference to the
drawings filed with my Provisional Specification and in which :-
Fig. 1, is a perspective view of my improved storage cell showing the arrange-
ments of the electrodes, the cell being partially in section.
Fig. 2, is a plan view.
Fig. 3, is a detail showing the construction of the electrodes.
Fig. 4, is a detail of the slotted insulating bar.
In the drawings like letters of reference indicate corresponding parts in each
figure.
Each electrode is formed with a back plate A having stamped or formed out at the
sides thereof, the comb-like fingers or projections a. These fingers or projections
are cut out on the flat by any suitable cutting mechanism and then are each turned
at right angles to the plane of the plate A after which both groups at each side are
bent inwardly as indicated in Fig. 3, so as to be at right angles to the main portion A
of the plate.
It will thus be seen that the fingers a standing one directly above the other present

page_text: the plane portion, the interposed oxide in the space between the fingers, of the slotted
insulating bars and the elastic bands as specified.
7. 5. The combination with the plates comprising the plane portion, and the comb-
like portion having the fingers or teeth thereof twisted so as to be at right angles to
the plane portion, and the interposed oxide in the spaces between the fingers, of the
slotted insulating bars and the bottom insulating bar forming a support for the fingers
and provided with a bent end next the plane portion of the plate as and for the purpose
specified.
Deted the 28th day of June 1899
1
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.