IMPROVEMENTS IN GALVANIC GENERATORS, AND IN THE APPLICATION THEREOF TO THE UTILIZATION OF MATERIALS EMPLOYED THEREIN, AND IN THE OBTAINING PRODUCTS THEREFROM.
Year: 1879

page_text: LETTERS PATENT to Adolph Gutensohn, of Exmouth Street, in the County of
Middlesex, Manufacturing Chemist, for the Invention of "IMPROVEMENTS
IN GALVANIC GENERATORS, AND IN THE APPLICATION THEREOF TO THE
UTILIZATION OF MATERIALS EMPLOYED THEREIN, AND IN THE OBTAINING
PRODUCTS THEREFROM.
"
Sealed the 30th March 1880, and dated the 1st October 1879.
PROVISIONAL SPECIFICATION left by the said Adolph Gutensohn at the
Office of the Commissioners of Patents on the 1st October 1879.
ADOLPH GUTENSOHN, of Exmouth Street, in the County of Middlesex, Manu-
facturing Chemist. "IMPROVEMENTS IN GALVANIC GENERATORS, AND IN THE
APPLICATION THEREOF TO THE UTILIZATION OF MATERIALS EMPLOYED THEREIN, AND
IN THE OBTAINING PRODUCTS THEREFROM.'
"
My Invention is designed for the purpose of obtaining electrical currents by the
use of materials not hitherto employed for the purpose, and in the generation of
such currents to utilize the said materials and render them available for other
purposes.
My Invention consists in the employment and use of sulphate, nitrate, chloride,
or chromate of tin, in those batteries or generators of electricity wherein zinc is
most advantageously employed, but also in other galvanic batteries or generators
in use, whereby economy in the production of the electrical current is obtained,
and a more valuable residue is produced than hitherto.
The sulphate, nitrate, chloride, or chromate of tin, either in solution or otherwise,
is used in the cell or chamber containing the opposite pole to the zinc. For the
other pole any of the ordinary ingredients or chemicals may be employed. The
residue or deposit arising from the electrical action adheres in large quantities to
the polo immersed in the solution, and is crystalline tin, which may be collected
and reduced to ingots or other form by melting in the ordinary way. Where the
solution be employed it must be of considerable strength, so as to ensure the
deposition of the tin in a crystalline and not a "spongy" form, when the melting
becomes difficult and wasteful.
The crystalline tin thus deposited may be redissolved by electrical action for
recharging the battery, or instead of such crystalline tin residue, tin waste, ordinary
crude or refined tin, or tin-ore, or the residue of tin mines, now considered waste,
may be employed. In this case I should prefer to employ chloride of tin.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Adolph Gutensohn in the Great Seal Patent Office on the 1st April
1880.
ADOLPH GUTENSOHN, of Exmouth Street, in the County of Middlesex, Manu-
facturing Chemist. "IMPROVEMENTS IN GALVANIC GENERATORS, AND IN THE
APPLICATION THEREOF TO THE UTILIZATION OF MATERIALS EMPLOYED THEREIN,
AND IN THE OBTAINING PRODUCTS THEREFROM."
My Invention is designed for the purpose of obtaining electrical currents by the
use of materials not hitherto employed for the purpose, and in the generation of
such currents to utilize the said materials and render them available for other
purposes.
My Invention consists in the employment and use of sulphate, nitrate, chloride,
or chromate of tin, in those batteries or generators of electricity wherein zinc is
most advantageously employed, but also in other galvanic batteries or generators
in use, whereby economy in the production of the electrical current is obtained, and
a more valuable residue is produced than heretofore.
The sulphate, nitrate, chloride, or chromate of tin, either in solution or otherwise,
is used in the cell or chamber containing the opposite pole to the zinc. For the
other pole any of the ordinary ingredients or chemicals may be employed. The
residue or deposit arising from the electrical action adheres in large quantities to
the pole immersed in the solution, and is pure crystalline tin, which may be
collected and reduced to ingots or other form by melting in the ordinary way.
Where the solution be employed it must be of considerable strength, so as to ensure
the deposition of the tin in a crystalline and not a spongy form, when the melting
becomes difficult and wasteful, and where the salt alone be used it must be
damped.
The crystalline tin thus deposited may be redissolved by electrical action for
recharging the battery; or instead of such crystalline tin residue, tin waste,
ordinary crude or refined tin or tin-ore, or the residue of tin mines, now considered
waste, may be employed. In this case I should prefer to employ chloride of tin.
And in order that my Invention may be the better understood, I hereto annex a
Drawing to show by way of illustration the use of the sulphate, nitrate, chloride,
or chromate of tin in an ordinary Bunsen cell,
Fig. 1 is a sectional elevation, and Fig. 2 is a plan.
The outside jar A may contain the usual weak solution B of sulphuric acid, in
which is immersed the ordinary negative zinc pole C. Inside is placed the usual
porous cell D, and the positive pole may be conveniently of carbon; surrounding
this positive pole of carbon E, and contained in the porous cell D, is placed the
solution of sulphate, nitrate, chromate, or chloride of tin F, whereby a current of
galvanic electricity is generated. A precipitate of pure metallic crystalline tin is
received on the carbon pole E, which when removed is ready for commercial sale
or remelting.
At the same time be it clearly understood that my improved application of the
sulphate, nitrate, chloride, or chromate of tin, is not restricted to any particular
form of battery, but may be generally used with advantage isolated in a porous
cell surrounding that pole which is opposite to the zinc.
Having now described and fully ascertained the nature and object of my Invention,
and the mode of carrying same into effect, be it known that what I claim as my
Invention, and desire to secure by Letters Patent is,—
1st. The employment of sulphate, nitrate, chloride, or chromate of tin, in
galvanic batteries or chemical electrical generators to produce galvanic electricity,
the said sulphate, nitrate, chloride, or chromate of tin being used as a solution

page_text: surrounding one of the poles, generally that opposite to the zinc, and isolated by a
porous cell
2nd. The application of the aforesaid battery to the production of a deposit of
pure tin upon the pole immersed in either of the aforesaid solutions.
Substantially as herein before described.
In witness whereof, I, the said Adolph Gutensohn, have hereunto set my hand
and seal, this Thirty first day of March, in the year of our Lord One
thousand eight hundred and eighty.
In the presence of
S. P. WILDING,
City Patent Office,
23, Rood Lane,
London, E.C.
Patent Agent.
ADOLPH GUTENSOHN. (LS.)