IM- IN GALVANIC BATTERIES, SPECIALLY USEFUL FOR MEDICAL PROVEMENTS DIDDOS
Year: 1877

page_text: LETTERS PATENT to James Coxeter and Samuel Joseph Coxeter, trading
under the Style or Firm of Coxeter and Son, of Grafton Street East, in the
County of Middlesex, Surgical Instrument Makers, for the Invention of "IM-
IN GALVANIC BATTERIES, SPECIALLY USEFUL FOR MEDICAL
PROVEMENTS
DIDDOS "
Sealed the 5th February 1878, and dated the 7th August 1877.
PROVISIONAL SPECIFICATION left by the said James Coxeter and Samuel
Joseph Coxeter at the Office of the Commissioners of Patents on the 7th
August 1877.
JAMES COXETER and SAMUEL JOSEPH COXETER, trading under the Style or Firm
of Coxeter & Son, of Grafton Street East, in the County of Middlesex, Surgical
Instrument Makers. "IMPROVEMENTS IN GALVANIC BATTERIES, SPECIALLY USEFUL
FOR MEDICAL PURPOSES."
This Invention consists of improvements in batteries and apparatus connected
therewith, specially useful for medical purposes.
The batteries at present in use are costly and complicated in construction,
rendering them liable to derangement. Our battery is made to overcome these
objections, same being constructed mainly as follows
-
The cells we construct of suitable material, but by preference same are constructed
of waterproof fabric, which we cover with a non-conductor of electricity, and when
such fabric is used the cells are made more cheaply and can be packed more closely
together.
The elements of the battery consist of zinc, forming one pole, separated from the
other element, as hereafter described, by a partly or wholly porous diaphragm or
tube, the other element, forming the positive pole, consisting of powdered carbon and
peroxide of manganese. Into this we introduce either a plate or wire of platina or
The battery
metal which should be platinized, as, for instance, platinized silver.
may be excited by sal ammoniac or other salts. This platina or platinized surface

page_text: serves as a collector of the electricity in place of graphite, which has hitherto been
used.
The zinc projects above the surface of the cell, and on to the zinc the reophores
conveying the electricity to the patient are attached by plugs or other convenient
attachment.
On to the upper surface of the platina plate or platinized surface is fused a wire,
preferably of silver, to connect one cell with the next, and thus concurrent action is
obtained throughout the whole of the cells forming the battery.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Coxeter and Samuel Joseph Coxeter in the Great Seal Patent
Office on the 7th February 1878.
JAMES COXETER and SAMUEL JOSEPH COXETER, trading under the Style or Firm
of "Coxeter and Son," of Grafton Street East, in the County of Middlesex, Surgical
Instrument Makers. "IMPROVEMENTS IN GALVANIC BATTERIES, SPECIALLY USEFUL
FOR MEDICAL PURPOSES."
This Invention consists of improvements in batteries, specially useful for medical
purposes.
Our battery is constructed substantially as follows:-The cells we construct of
any suitable material, but, by preference, same are constructed of waterproof fabric or
fabric rendered waterproof, which we cover or coat with a non-conductor of
electricity, and when such fabric is used the cells are made more cheaply and can be
packed more closely together.
The elements of the battery consist of zinc, forming one pole of the battery,
separated from the other element, as hereafter described, by a.partly or wholly
porous tubular cell placed in one of the angles of the outer cell, and into the outer
cell we introduce either a plate or wire of platina or metal which should be
platinized, as, for instance, platinized silver. The other element for forming the
other pole of the battery consists of powdered carbon and peroxide of manganese.
The before-mentioned platina or platinized metal serves as a collector of the
electricity in place of graphite, which has hitherto been used.
The zinc projects above the surface of the cell, and on to the zinc the reophores
conveying the electricity to the patient are attached by plugs or other convenient
attachments.
On to the upper surface of the platina plate or platinized metal is fixed or fused
a wire, preferably of silver, to connect one cell with the next, and thus concurrent
action is obtained through the whole of the cells forming the battery.
Sal ammoniac or other salts may be employed as the exciting fluid of the
battery.
Having now particularly described and ascertained the nature and object of the
said Invention, and in what manner the same is to be performed or carried out in
practice, we hereby declare that we claim the improvements in galvanic batteries
consisting in having the outer cell constructed of waterproof fabric or fabric rendered
waterproof, same being coated with a non-conductor of electricity, each such outer

page_text: cell having an inner porous cell for containing the zinc forming one pole of the
battery, whilst the interior space between each inner and outer cell is provided with
platina or platinized metal used in combination with peroxide of manganese and
powdered carbon, forming the other pole of the battery, all substantially as herein-
before set forth and described.
In witness whereof, we, the said James Coxeter and Samuel Joseph Coxeter,
have hereunto set our hands and seals, this Sixth day of February, in the
year of our Lord One thousand eight hundred and seventy-eight.
JAMES COXETER,
(L.S.)
Witness,
W. HILLIER,
SAMUEL JOSEPH COXETER. (L.S.)
Clerk to the Inventors Patent Right Assn. Ld.
21, Cockspur Street,
London, S.W.