AN IMPROVED ARRANGEMENT OF GALVANIC BATTERY SUITABLE FOR MEDICAL PURPOSES
Year: 1857

page_text: LETTERS PATENT to Charles Henwood, of the City of Oxford, Engineer,
for the Invention of "AN IMPROVED ARRANGEMENT OF GALVANIC BATTERY
SUITABLE FOR MEDICAL PURPOSES."
Sealed the 1st June 1858, and dated the 3rd December 1857.
PROVISIONAL SPECIFICATION left by the said Charles Henwood at the
Office of the Commissioners of Patents, with his Petition, on the
3rd December 1857.
I, CHARLES HENWOOD, of the City of Oxford, Engineer, do hereby declare
the nature of the said Invention for "AN IMPROVED ARRANGEMENT OF GALVANIC
BATTERY SUITABLE FOR MEDICAL PURPOSES," to be as follows:-
I take plates of copper and zinc or of two other metals, one electro-positive
and the other electro-negative to the other, and combine and arrange such
plates in pairs, and unite the pairs to form a chain or belt as hereafter
explained. I will suppose copper and zinc to be the metals employed. I take
a plate of copper, bend it at the centre and fold one half down over the other
half. I cut away small portions from the fold or part where one half is
doubled over the other; I then place between the two halves of the copper
plate a plate of zinc covered with linen or other textile fabric to prevent

page_text: contact between the plates. The zinc plate is equal in breadth to nearly one
half of the breadth of the copper plate; it has two lugs, which project beyond
the parts cut away from the fold in the copper plate; the opposite corners to
the lugs in the zinc plato aro cut off and the zinc plate is held between the
two halves of the copper plate by two corners of the latter, being turned in
under the zinc plate; the two other corners of the copper plate have cach a
hole pierced therein; a hole is also made in the projecting zinc lugs, and metal
rings being passed through the holes in the zine lugs and copper corners unito
every pair of plates.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Henwood in the Great Seal Patent Office on the 3rd
June 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
HENWOOD, of the City of Oxford, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Pateut, bearing dato the Third day of December, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twenty-first year of Hor
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Charles Henwood, Her special licence, that I, the said Charles
Henwood, my executors, administrators, and assigns, or such others as I, the
said Charles Henwood, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times there-
after 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 "AN IMPROVED
ARRANGEMENT OF GALVANIC BATTERY SUITABLE FOR MEDICAL PURPOSES," upon the
condition (amongst others) that I, the said Charles Henwood, my executors
or administrators, by an instrument in writing under my, 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 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 I, the said Charles Henwood, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following

page_text: statement thereof, reference being had to the Drawings hereunto annexed, that
is to say:
I take plates of copper and zinc or of two other metals, one electro-positive
and the other electro-negative to the other, and combine and arrange such
plates in pairs and unite the pairs to form a chain or belt as hereafter
explained. I will suppose copper and zinc to be the metals employed; I take
a plate of copper, bend it at the centre, and fold one half down over the other
half. I cut away small portions from the fold or part where one half is doubled
over the other. I then place between the two halves of the copper plate a
plate of zinc covered with linen or other textile fabric to prevent contact
between the plates. The zinc plate is equal in breadth to nearly one half of
the breadth of the copper plate; it has two lugs, which project beyond the
parts cut away from the fold in the copper plate. The opposite corners to the
lugs in the zinc plate are cut off, and the zinc plate is held between the two
halves of the copper plate by two corners of the latter being turned in under
the zinc plate; the two other corners of the copper plate have each a hole
pierced therein, a hole is also made in the projecting zinc lugs, and metal
rings being passed through the holes in the zinc lugs and copper corners unite
every pair of plates.
Figure 1 of the Drawings hereunto annexed is a view of one of the copper
plates preparatory to being folded; Figure 2 is a view of the zinc plate
partially covered with cotton; Figure 3 shews the copper and zinc plates
fastened together; and Figure 4 is a view of two pairs of plates, shewing the
manner in which they are connected together. a is the copper plate at or
about the centre b of which it is folded; c is the zinc plate, surrounded with
cotton d, or it may be wholly covered with linen to prevent its coming into
contact with the copper. This zinc plate c is formed with lugs c, e, which
when the zinc plate is placed in the fold 6 of the copper plate protrude as
shewn in the Figures; two of the corners of the plate a are folded over the
zinc plate, as shewn at Figures 3 and 4. Holes are formed in the lugs of
the zine and remaining corners of the copper plates, through which rings g, g,
are passed to connect the plates together, as shewn at Figures 4 and 5.
Figure 5 shews a number of pairs of plates connected together and fastened
to a strap to form a belt for personal wear. h is a linen case for buttoning
over the plates to keep them from contact with the body where desired.
Figure 6 the belt is shewn with the cover buttoned over the plates.
At
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim the forming of a

page_text: galvanic battery suitable for medical purposes by combining plates of copper
and zinc or of two other metals, electro-positive and electro-negative to each
other, in the manner herein-before described and illustrated in the Drawings
annexed.
In witness whereof, I, the said Charles Henwood, have hereunto set my
band and seal, this Second day of June One thousand eight hundred
and fifty-eight.
CHARLES HENWOOD. (L.B.)