Improvements in or applicable to Electrical Accumulators or Secondary or Storage Batteries.
Year: 1892

page_text: s print is in accordance with the original Specification as it stands after
Amendment (under Section 18 of the Patents, &c. Act, 1883), as allowed by
the decision of the Comptroller General of the 4th day of May 1896.
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Electrical Accumulators
or Secondary or Storage Batteries.
"
I HENRY WILLIAM HEADLAND Surgeon's Instrument Maker of "The Firs
High Street Leyton in the County of Essex, do hereby declare the nature of the
said invention to be as follows:-
In accumulators or secondary or storage batteries as hitherto constructed for the
purpose of storing electrical energy great difficulty has been experienced inasmuch
as the composition to be immersed in the exciting fluid must present to the latter a
large surface and is not sufficiently solid to form sheets or plates.
Recourse has therefore been had to metallic supports for the composition but
none hitherto devised has proved entirely satisfactory as the composition is always
apt to become detached. My invention obviates this difficulty.
According to my invention I take a hollow rod or bar of suitable crossection and
perforate its sides with numerous holes. The interior of such bar is then filled
with the composition which may project into the apertures at the sides so as to be
flush with the face or faces of the bar.
Several such bars may be combined to form a plate and in that case the
interstices between them may also be filled with composition.
Dated this 22nd day of August 1809
BERNHARD DUKES
226 High Holborn London W.C. Agent for the Applicant.
Improvements in or applicable to Electrical Accumulators
or Secondary or Storage Batteries.
I HENRY WILLIAM HEADLAND Surgeon's Instrument Maker of "The Firs"
High Street Leyton in the County of Essex 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 :-
In accumulators or secondary or storage batteries as hitherto constructed for the
purpose of storing electrical energy great difficulty has been experienced inasmuch
D

page_text: as the composition to be immersed in the exciting fluid must present to the latter a
large surface and is not sufficiently solid to form sheets or plates.
Recourse has therefore been had to metallic supports for the composition but
none hitherto devised has proved entirely satisfactory as the composition is always
apt to become detached. My invention obviates this difficulty.
According to my invention I take a hollow rod or bar of suitable cross section and
perforate its sides with numerous holes, so as to produce a bar substantially such as is
shown in Figure 1.
The interior of such bar is then filled with the composition which may project
into the apertures at the sides so as to be flush with the face or faces of the bar.
Several such bars may be combined to form a plate.
In the accompanying drawings
Figure 1 shows one of my bars in elevation the front portion at the bottom being
broken away.
Figure 1 is a cross-section of the same.
Figure 2 shows several such bars combined.
It will be seen in Figures 1, 1^, that each of my bars consists of four uprights a a
connected by a series of transverse ties b b so as to form a hollow rod the faces of
which have recesses c c.
The bars are square in cross section, the essential feature of this invention being
that there shall be a solid prismatic body of the composition securely held in a
network, as it were, of any suitable metal or material forming the recesses c which
allow the composition to present a large surface to the exciting liquid whilst the
uprights a and cross pieces bb securely hold the composition in place.
Figure 2 shows how several of these bars may be combined; to this end they
are united at top and bottom by transverse strips d d of any suitable material to
which the several bars are secured.
It will readily be seen that two bars are sufficient to form a small battery, and
that if several of them are combined they will yield much better results than any
plate occupying a similar space as the whole surface of the bars (on all sides) is
active.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1). In storage batteries, or accumulators the use of one or more hollow bars,
square, in section each consisting of a series of uprights a a with transverse ties or
cross pieces bb forming recesses c c the bars and their recesses being filled with
composition, substantially as described.
2). In storage batteries or accumulators the use of several bars constructed as
described in Claim 1 and connected by transverse strips d, so as to form a plate
substantially such as is hereinbefore described and shown in Figure 2.
Dated this 2nd dow of
1000
B. DUKES,
226, High Holborn, London, W.C. Agent for the Applicant.