IMPROVEMENTS IN GALVANIC ELEMENTS
Year: 1875

page_text: LETTERS PATENT to John Crisp Fuller and George Fuller, both
of Fenchurch Street, in the City of London, for the Invention
of "IMPROVEMENTS IN GALVANIC ELEMENTS."
PROVISIONAL SPECIFICATION left by the said John Crisp Fuller
and George Fuller at the Office of the Commissioners of Patents,
with their Petition, on the 9th December 1875.
We, JOHN CRISP FULLER and GEORGE FULLER, both of Fenchurch
Street, in the City of London, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN GALVANIC ELEMENTS," to be as
follows:-
This Invention consists of certain improvements on an Invention
described in the Specification of a Patent granted to John Fuller, and
dated 19th April 1853, No. 944. In the galvanic elements there referred
to the carbon plate was enclosed by and packed in a porous diaphragm

page_text: "
in a mixture of granulated carbon and plumbago, which latter contains
peroxide of manganese. Now according to this Invention we dispense
with the porous diaphragm and place the granulated carbon in the
bottom of the insulating chamber; we place the carbon plate in the
midst and a zinc plate, or ring, or cylinder over the granulated carbon.
We mix with the granulated carbon such suitable and well-known
salts or oxides of metals as may be required to charge the battery, for
instance, sulphate of alumina and salts of muriatic acid or plumbago.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Crisp Fuller and George Fuller in the
Great Seal Patent Office on the 9th June 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
CRISP FULLER and GEORGE FULLER, both of Fenchurch Street, in the
City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of December, in the
year of our Lord One thousand eight hundred and seventy-five, in
the thirty-ninth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto us, the said John Crisp Fuller and
George Fuller, Her special licence that we, the said John Crisp Fuller
and George Fuller, our executors, administrators, and assigns, or such
others as we, the said John Crisp Fuller and George Fuller, our exe-
cutors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN GALVANIC ELEMENTS," upon the condition (amongst
others) that we, the said John Crisp Fuller and George Fuller, our
executors or administrators, by an instrument in writing under our, or
one of our or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed

page_text: in the Great Seal Patent Office within six calendar months next and.
immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said John Orisp Fuller and George
Fuller, do hereby declare the nature of our said Invention, and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement, reference being had
to the accompanying Drawings, and to the letters of reference marked
thereon, that is to say :-
This Invention consists of certain improvements on an Invention
described in the Specification of a Patent granted to John Fuller, and
dated 19 April 1853, No. 944. In the galvanic elements there referred
to the carbon plate was enclosed by and packed in a porous diaphragm
in a mixture of granulated carbon and plumbago, which latter contains
peroxide of manganese. Now according to this Invention we dispense
with the porous diaphragm and place the granulated carbon in the
bottom of the insulating chamber; we place the carbon plate in the
midst and a zinc plate, or ring, or cylinder over the granulated carbon.
We mix with the granulated carbon such suitable and well-known
salts or oxides of metals as may be required to charge the battery, for
instance, sulphate of alumina and salts of muriatic acid, plumbago, and
manganese.
And in order that this Invention may be more fully understood we
will now proceed to describe the same with reference to the accom-
panying Drawing, which is a vertical section through a galvanic element
according to our Invention.
A is the insulating chamber or cell; B is the granulated carbon mixed
with plumbago (which contains peroxide of manganese) or with any
suitable and well-known salt or oxide of metal; C is the carbon plate,
which is surrounded by the aforesaid material or materials B; and D is
the zinc plate which is placed over the aforesaid material in any desired
position relatively thereto.
And having thus fully described the nature of this Invention and in
what manner the same is to be performed, we declare that we claim as
our improvements in galvanic elements the carbon plate C placed in and
surrounded by granulated carbon mixture B in combination with the

page_text: zinc plate, cylinder, or ring D placed above such mixture, as set
forth.
In witness whereof, I, the said John Crisp Fuller, for myself and
on behalf of the said George Fuller, have hereunto set my hand
and seal, this Ninth day of June, in the year of our Lord One 5
thousand eight hundred and seventy-six.
JOHN CRISP FULLER. (L.S.)