Improvements in or relating to Electric Storage Batteries.
Year: 1896

page_text: Date of Application, 25th Sept., 1896
1007
25th Sant
1907
PROVISIONAL SPECIFICATION.
Improvements in or relating to Electric Storage Batteries.
I, JOHN EVELYN LIARDET of 16 Hyde Park Gate in the County of London,
Electrical Engineer, do hereby declare the nature of this Invention to be as
follows:-
This Invention relates to improvements in electric storage Batteries and is
designed with a view to economizing the weight and cost of the storage cells.
According to this Invention I make each of the plates of two sheets of lead
having V shaped grooves (by preference) on their inner surfaces, the said grooves
being filled with a mixture of peroxide of lead and red lead or other suitable salts
of lead.
The two sections aforesaid composing each of the plates are charged with the
mixture, and are fastened together preferably by the means hereafter described.
The Battery cells consist of an inner skeleton frame or cradle made preferably of
wood and placed in the case which I prefer to make of lead, and when inade of lead
I connect this latter with the negative pole, thus securing a larger amperage than
has heretofore been obtained. The said frame or cradle is made with a foot
extending the whole length on each side.
The sides of the said frame or cradle are grooved for the reception of the plates
which are thus held in position without having any other separators as at present.
The bottom end of the plates rest on the aforesaid fleet so as to leave a clear space
at the bottom of the cell for the free passage of the exciting liquid.
The means I prefer to employ for charging the aforesaid grooves with the
mixture before mentioned, and also for joining the two sections of the plates
together, consist of a bench on which I mount a band passing over pulleys to form
a travelling table on which the plates are placed, with their grooved surfaces
uppermost. At one end of the said bench I fix a hopper for feeding the aforesaid
mixture on to the plates. I mount rollers so as to roll on the surfaces of the said
plates as they travel along, and thus fill in and level the mixture in the aforesaid
grooves.
I fix a Stamp at the opposite end of the bench, to rivet the two sections of the
plates together when they are turned over one another.
Thus each plate will contain the mixture in a number of diamond shaped
recesses and will be closed at top and bottom, by means of which it will be found
that the mixture will last practically as long as the lead of which the plates are
composed.
I propose to place the whole cell in a skeleton frame or cradle or wood or other
suitable material, instead of having a soliu casing as is done at present.
Dated this Twenty fifth day of September 1896.

page_text: Improvements in or relating to Electric Storage Batteries.
I, JOHN EVELYN LIARDET, of 16 Hyde Park Gate, in the County of London,
Electrical Engineer, 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 relates to improvements in electric storage batteries, and is
designed with a view to economizing the weight and cost of the storage cells.
According to this Invention, I make each of the plates of two sheets of lead,
having V-shaped grooves (by preference).on their inner surfaces, the said grooves
being filled with a mixture of peroxide of lead and red lead, or other suitable salts
of lead.
The two sections aforesaid composing each of the plates are charged with the
mixture, and fastened together, preferably by the means hereafter described.
The battery cells consist of an inner skeleton frame or cradle made preferably of
wood, and placed in the case, which I prefer to make of lead, and when made of
lead I connect this latter with the negative pole, thus securing a larger amperage
than has heretofore been obtained. The said frame or cradle is made with a foot
extending the whole length on each side.
The sides of the said frame or cradle are grooved for the reception of the plates
which are thus held in position without having any other separators-as at present.
The bottom ends of the plates rest on the aforesaid feet, so as to leave a clear
space at the bottom of the cell for the free passage of the exciting liquid.
The means I prefer to employ for charging the aforesaid grooves with the
mixture before mentioned, and also for joining the two sections of the plates
together, consist of a bench on which I mount a
pulleys to
band passing over
form a travelling table OIL which
with their grooved surfaces uppermost.
the plates are placed,
At one end of the said bench I fix
a hopper for feeding the aforesaid mixture on to the plates, mount rollers so as
to roll on the surfaces of the said plates as they travel along, and thus fill in and
level the mixture in the aforesaid grooves.
I fix a stamp at the opposite end of the bench, to rivet the two sections of the
plates together when they are turned over one another.
Thus each plate will contain the mixture in a number of diamond-shaped
recesses, and will be closed at top and bottom, by means of which it will be found
that the mixture will last practically as long as the lead of which the plates are
composed.
I propose to place the whole cell in a skeleton frame or cradle of wood or other
suitable material, instead of having a solid casing as is done at present.
And in order that my said Invention may be more fully understood, I will now
proceed to describe the same with reference to the accompanying sheets of draw-
ings, in which:
Fig. 1 shows a plan of my improved storage battery;
Fig. 2, a section on line A B Fig. 1;
Figs. 3 to 7, the construction of the plates in detail;
Fig. 8, an elevation of the means I prefer to employ for charging with the paste
and rivetting the plates, and
Figs. 9 to 12 details hereafter referred to.
The same letters denote the same parts in all the views.
a shews the outer case, b the inner lining (made preferably of lead), c the positive
plates, the negative plates. Figs. 3, 4 and 5 shew various methods. of con-
structing these plates. Figs. 5 and 6 shew the same style of construction,

page_text: but Fig. 5 shews a positive plate, and Fig 6 a negative plate. These plates differ
in construction only in so far as the terminals t, y and z are concerned. Each of
these plates is constructed of two sheets of lead having grooves k, or I may have
only one plate folded to produce the same effect. These grooves I prefer to have
of a V form. The said grooves are formed on the inner surfaces of the plates and
are filled with a mixture of peroxide of lead and red lead, or other suitable salts
of lead. Each plate, when filled and rivetted, will thus contain the mixture in a
uumber of diamond-shaped recesses, and will be closed at top and bottom, as will
be seen on reference to Fig 7, which shews a vertical section of a plate. The
positive plates c are connected up by means of a connecting bar e and terminal f
combined, and the negative plates d are connected (on the other side of the battery)
by a similar bar g and terminal h combined. Figs 9 and 10 shew alternate forms
of connecting bars. That shewn at Fig. 9 would be used with plates such as
those shewn at Fig. 3; the parts w fitting into the forks t. Plates as shewn at
Fig. 4 would require connecting bars as shewn at Fig. 10; the rod v passing through
the holes u, being washers for keeping the plates apart. The plates shewn at
Fig. 5 would require a rod or bar having circular holes therein at regular intervals.
s shews a pin to pass through the holes in the forks t of the plate, and press the
connecting bar tightly down between the forks. Or I may weld these bars to the
plates. shews the inner skeleton frame or cradle, made preferably of wood, and
placed in the inner lining or case b. This frame or cradle i is provided with a foot
extending the whole length, on either side, and has grooves at the sides for the
reception and holding in position of the plates c and d, so that a clear space is left
at the bottom of the cell for the free passage of the exciting liquid. This will be
more readily understood on reference to Fig. 11, which shews an end view of the
frame i.
With reference to the parts marked 2 at Figs. 3, 4, 5 and 6: These are ledges or
lugs for use in conjunction with a strip of wood or other suitable material. The
ledges on the negative plates would support, and those on the positive plates would
be supported by, the strip. This 'strip would serve to keep the plates in position,
and I prefer to have the said strip made as shewn at Fig. 12.
With reference to Fig. 8, which shews the apparatus I prefer to employ for
charging the grooves in the plates with the mixture mentioned, and also for
joining the two sections of each plate together, I shews a bench to which is fitted
band m passing over the pulleys n and o and forming a travelling table.
shew rollers for crushing the mixture of lead salts for forming the paste. ? shews
0 0¹
hopper for feeding the mixture on to the plates as they pass between the rollers
01. r shews a stamp for rivetting, cutting and compressing the plates.
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
laim is:-
1. In storage batteries, the general construction and arrangement of parts
igs. 11 and 12, for the purpose set forth.
2. In storage batteries, the employment of frames such as those shewn in
igs. 11 and 12, for the purpose set forth.
3. In storage batteries, connecting the lead lining with the negative poles and
lates, for the purpose set forth.
4. In storage batteries, the method of and apparatus for pasting and rivetting the
lates, substantially as herein set forth.
Dated this 25th day of June 1907
BROWNE & Co.,
9 Warwick Court, Gray's Inn, London, W.C., Agents for the Applicant.