IMPROVEMENTS IN CARBONS FOR GALVANIC BATTERIES
Year: 1884

page_text: I PAUL RAOUL DE FAUCHEUX D'HUMY of Carlton Mansions, Clapham Rise in
the County of Surrey, Electrical Engineer do hereby declare the nature of the
said Invention for IMPROVEMENTS IN CARBONS FOR GALVANIC BATTERIES to be as
follows:-
The Invention has for its object the manufacture of carbons with very extended
surfaces but of simple construction. For this purpose I form the carbon with a
central hollow or solid stem around which are a number of cylindrical or other
shaped tubes at such distances apart as to leave a small annular or other shaped
space between the stem and the first tube and between the succeeding tubes.
The central stem and the several tubes are connected to and supported by a base
also of carbon so as to form in effect a single carbon of compound form. The walls
of all the tubes and the central stem are perforated so as to permit the free circu-
lation of the exciting liquid through and amongst them. In case the above
described carbon is to be used without a porous earthenware cell I make the outer
cylinder imperforate but at the same time sufficiently porous to permit of the slow
filtration of the exciting liquid through the same.
Carbons of the character above described may be produced by moulding the
same in suitable moulds or by building the same up of the several parts, and
in some cases the parts are removeable from each other. In the former case the
perforations in the tubes are produced by drilling through from the outer one to.
the central stem after which if the outer tube is required to be imperforate, the
holes in such tube are plugged with solid paraffin or with other suitable material.
As a modification of the above instead of employing the intermediate tubes
I use a number of perforated" horizontal discs or plates formed with a central hole
to fit the central stem and of size and shape to fit the interior of the outer tube,
small washers or distance pieces are used to maintain the separation of the perforated
discs or plates from each other.

page_text: I PAUL RAOUL DE FAUCHEUX D'HUMY of Carlton Mansions, Clapham Rise in
the County of Surrey, Electrical Engineer do hereby declare the nature of the said
Invention for IMPROVEMENTS IN CARBONS FOR GALVANIC BATTERIES and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
The invention has for its object_the_manufacture of carbons with very extended
surfaces but of simple construction.
For this purpose I form the carbon with a central hollow or solid stem around
which are a number of cylindrical or other shaped tubes at such distances apart as
to leave a small annular or other shaped space between the stem and the first tube
and between the succeeding tubes.
The central stem and the several tubes are connected to and supported by a base
also of carbon so as to form in effect a single carbon of compound form. The walls
of all the tubes and the central stem are perforated so as to permit the free circu-
lation of the exciting liquid through and amongst them. In case the above
described carbon is to be used without a porous earthenware cell I make the outer
cylinder imperforate but at the same time sufficiently porous to permit of the slow
filtration of the exciting liquid through the same.
Carbons of the character above described may be produced by moulding the
same in suitable moulds or by building the same up of the several parts and in
some cases the parts are removeable from each other. In the former case the
perforations in the tubes are produced by drilling through from the outer one to
the central stem after which if the outer tube is required to be imperforate, the
holes in such tube are plugged with solid paraffin or with other suitable material.
As a modification of the above instead of employing the intermediate tubes
I use a number of perforated horizontal discs or plates formed with a central hole
to fit the central stem and of size and shape to fit the interior of the outer tube,
small washers or distance pieces are used to maintain the separation of the
perforated discs or plates from each other.
And in order that my said invention may be more clearly understood and readily
carried into effect I will proceed aided by the accompanying drawings inore fully
to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figures 1, 2 and 3 are vertical sections of carbons constructed according to my
Invention. According to the arrangements represented at Figures 1 and 2 I form
the carbon with a central hollow, or it may be a solid stein a around which are a
number of cylindrical or other shaped tubes b at such distances apart as to leave
a small annular or other shaped space c between the stem a and the first tube b
and between the succeeding tubes b.
The central atom and tha tuskaa Zara connected to

page_text: Carbons of the character above described may be produced by moulding the
same in suitable moulds an example of which is shown at Figure 1 or by building
the same up of the several parts as shown at Figure 2 and in some cases the parts
are removeable from each other.
In the arrangement represented at Figure 1 the perforations in the stem a and
cylinders bare produced by drilling through from the outer cylinder b to the
central stem a after which if the outer tube is required to be imperforate, the
holes in such tube are plugged with solid paraffin or with other suitable material as
shown in Figure 2. In the arrangement represented at Figure 2 as the cylinders b
are independent of each other the outer one can be either perforated or not as may
be required.
As a modification of the above instead of employing the intermediate tubes b
as above described, I use, as shown at Figure 3 a number of perforated horizontal
discs or plates b* formed with a central hole to fit the central stem a and of size
and shape to fit the interior of the outer tube b, small washers or distance pieces e
are used to maintain the separation of the perforated discs or plates b* from each
other; these distance pieces may be independent pieces e or they may each form
part of one of the discs or plates 6*.
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 claim is
The manufacture of carbons for galvanic batteries with a central solid or hollow
stem a, the surrounding perforated tubes b or discs or plates 6*, outer perforated or
imperforate tube b and base d substantially as herein shown and described.
A
1
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