Year: 1887

page_text: Date of Application, 15th Oct., 1887
Complete Specification Left 16th July, 1888
Complete Specification Accepted, 10th Aug., 1888
RESEDVS
I, NICHOLAS DE BENARDOS of St. Petersburg in the Empire of Russia Gentleman
do hereby declare the nature of this Invention to be as follows:-
:-
This Invention relating to secondary batteries or electrical accumulators consists
in forming or arranging the plates or elements of such batteries as hereinafter
described and thereby obtaining an extensive acting surface and more powerful effect.
A secondary battery or accumulator made according to my Invention is provided
with plates or elements constituted by a frame of lead provided with arms or projec-
tions bearing on the edges of the trough or vessel the hollow or central part of this
frame being filled with strips of lead goffered or corrugated or bent in the form of
zigzags and arranged alternately with straight strips. These strips are soldered to
the frame at their extremities and the creases or bends are formed obliquely to the
edges of the strips that is to say are inclined to the direction of the length of the
strips. The extremities of the strips are soldered to the upper and lower horizontal
bars of the frame and the plates or elements thus constituted are arranged in a common
trough or vessel. These plates constitute alternately the positive and negative
elements of the battery and are so arranged in the vessel that the long arms of all the
positive plates project and rest on one side of the vessel and all the long arms of the
negative plates rest on the other or opposite side. All the long arms of the positive
and of the negative plates are respectively connected to strips of lead soldered to the
arms and bent up at one end.
These batteries can be charged with and caused to supply very powerful currents.
To insulate the adjacent plates small holes may be made in the upper and lower
corners of the frame and blocks or cylinders of india rubber or caoutchouc may be
inserted in these holes so as to project from and support the plates.
The chief advantages of the batteries or accumulators made according to this
Invention are as follows.
1. The accumulator being composed of plates constructed in the manner described
presents a very considerable or large acting surface and the plates are not liable to
become distorted or lose their shape under the action of very strong currents.
D

page_text: 2. Perfect freedom of circulation is provided for the liquids owing to the interstices
between the goffered or zigzag parts of the lead strips and the liquid consequently
remains of the same density throughout.
3. The lead strips being bent or creased in lines oblique or inclined to the centre
line of the strips great facility is afforded for the ascent and escape of the gas
bubbles.
4. The lead bands bent in a zigzag as described can be produced with great
regularity and precision by suitable mechanical appliances.
When these accumulators are to be employed for electric lighting purposes the
general construction is as hereinbefore described but it is advantageous to fill the
interstices between the zigzag strips with spongy lead or litharge or the like in order
to increase their electrical capacity.
1
.1
1000

page_text: COMPLETE SPECIFICATION.
Improvements in Secondary Batteries or Electrical Accumulators.
I, NICHOLAS DE BENARDOS of St. Petersburgh in the Empire of Russia
Gentleman 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, that is to say :-
This Invention relating to secondary Batteries or electrical accumulators consists in
forming or arranging the plates or elements of such batteries as hereinafter described
and thereby obtaining an extensive acting surface and more powerful effect A
secondary battery or accumulator made according to my Invention is provided with
plates or elements constituted by a frame of lead provided with arms or projections
bearing on the edges of the trough or vessel the hollow or central part of this frame
being filled with strips of lead goffered or corrugated or bent in the form of zig-zags
and arranged alternately with straight strips These strips are soldered to the frame
at their extremities and the creases or bends are formed obliquely to the edges of
the strips that is to say are inclined to the direction of the length of the strips.
And in order that the said Invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheet of drawings the same letters of reference indicating
corresponding parts in all the figures.
Figure 1 of the accompanying drawings shews an improved accumulator in
perspective and figures 2 and 3 represent vertical and horizontal sections respectively.
Figure 4 represents one of the plates or elements and figure 5 illustrates the leaden
frame forming the base or support of the same.
Figure 6 represents a band or strip of lead or other metal constituting one of the
poles or electrodes of the battery and figure 7 represents bands or strips of lead some
of which are goffered or bent in zigzags and being placed inside the frame with
straight strips form by their combination one plate or element of the battery.
Each plate of the battery is constructed as next hereinafter described. In the
interior or open space of the frame a cast in lead the goffered or zig-zag strips b are
arranged alternately with straight or flat strips c so as to entirely fill the frame a as
indicated in figure 4. The two extremities of each strip b and c are soldered to the
upper and lower horizontal bars of the frame and the plates or elements thus constituted
are arranged in an uneven number near together in a common trough or vessel A of
glass or other suitable material each plate being simply suspended in the vessel by
means of lugs or arms d d' which rest on the sides of the trough A. These plates
constitute alternately the positive and negative elements of the battery and are so
arranged in the vessel A, that the long arms d of all the positivep lates project and
rest on one side of the vessel and all the long arms of the negative plates rest on the
other or opposite side.. All the long arms d of the positive and of the negative plates
are respectively connected to strips e of lead soldered to the arms and bent up at one
end as indicated in figure 1.

page_text: These batteries can be charged with and caused to supply very powerful currents.
To insulate the adjacent plates small holes may be made in the upper and lower
corners of the frame a (figure 4) and blocks or cylinders f of india rubber or
Caoutchouc may be inserted in these holes so as to project from and support the platos
as indicated in figures 2, 3, and 8.
The chief advantages of the batteries or accumulators made according to this
Invention are as follows:-
1. The accumulator being composed of plates constructed in the manner described
presents a very considerable or large acting surface and the plates are not liable to
become distorted or lose their shape under the action of very strong currents.
2. Perfect freedom of circulation is provided for the liquids owing to the interstices
between the goffered or zig zag parts of the lead strips and the liquid consequently
remains of the same density throughout.
3. The lead strips & being bent or creased in lines oblique or inclined to the centre
line of the strips as shown in the drawing great facility is afforded for the ascent and
escape of the gas bubbles.
4. The lead bands bent in a zig zag as described can be produced with great
regularity and precision by suitable mechanical appliances.
When these accumulators are to be employed for electric lighting purposes the
general construction is as hereinbefore described but it is advantageous to fill the
interstices between tho zig zag strips b with spongy lead or litharge or the like in
order to increase their electrical capacity.
Having now described and particularly 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 :-
First. A secondary battery or electrical accumulator having plates or elements in
the form of frames filled with alternate zig zag and straight strips of lead soldered to
the frame at their extremities the zig-zag strips being creased or bent on lines oblique
or inclined to the centre lino or direction of the length of the strip all substantially as
hereinbefore described and illustrated in the accompanying drawing.
Second. A secondary battery or electrical accumulator having plates or elements
constituted by lead frames filled with straight strips of lead alternating with strips
bent in the form of a zig-zag by creases in lines running obliquely to the direction
of the length of the strip the said frames being supported or suspended in
the trough or vessel by arms or projections bearing on the sides of the said trough
or vessel substantially as hereinbefore described with reference to the accompanying
drawings.
Third. The combinations and arrangements of parts forming an improved secondary
battery or electrical accumulator substantially as hereinbefore described.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London,
Agents.