TREAT OF TIN AND TERNE PLATES
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by the said David Grey at the Office
of the Commissioners of Patents on the 8th June 1883.
DAVID GREY of Maesteg in the County of Glamorgan
TREATMENT OF TIN AND TERNE PLATES
"IMPROVEMENTS IN THE
This Invention has for its object improvements in the treatment of tin and
terne plates and relates more particularly to improvements in the fluxes used for
that purpose
Hitherto the only oil employed as a flux in the manufacture of such plates has
been palm oil-Owing however to the great and continued advance in price of this
commodity it has become extremely costly for such purpose thus exercising a
prejudicial influence on the tin plate industry and rendering it very desirable to
find if practicable some substitute or substitutes therefor combining equal efficiency
with economy of cost
Now after repeated experiments I have discovered that either linseed oil-rosin
oil or pine oil alone, may be advantageously substituted as a simple flux in the
treatment of tin and terne plates instead of palm oil as hitherto employed thus
greatly economising the cost of production
I have likewise by repeated experiments discovered that a compound flux
consisting of linseed oil and crude or refined rosin oil mixed together in suitable
proportions Or of either Rangoon oil-Castor oil or Cotton oil mixed with linseed
oil in suitable proportions forms an effective and economic flux which can be used
with great advantage in the treatment of such plates in lieu of palm oil as I thus
considerably reduce the cost of the plates without in any way deteriorating from
their quality
The method of using my improved fluxes both simple and compound is similar
to that employed when using palm oil

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said David Grey in the Great Seal Patent Office on the 8th December
1883.
DAVID GREY of Maesteg in the County of Glamorgan
TREATMENT OF TIN AND TERNE PLATES
"IMPROVEMENTS IN THE
This Invention has for its object improvements in the treatment of tin and
terne plates and relates more particularly to improvements in the fluxes used for
that purpose.
Hitherto the only oil employed as a flux in the manufacture of such plates has
been palm oil. Owing however to the great and continuous advance in price of
this commodity it has become extremely costly for this purpose thus exercising &
prejudicial influence on the tin plate industry and rendering it very desirable.
to find some substitute or substitutes therefor combining equal efficiency with
economy.
Now after repeated experiments I have discovered that either linseed oil, rosin
oil, or pine oil alone may be advantageously substituted as simple fluxes in the
treatment of tin and terne plates instead of palm oil as hitherto employed, thus
greatly economising the cost of production
I have likewise by repeated experiments discovered that compound fluxes
consisting of linseed oil and crude efined rosin oil mixed together in suitable
proportions or of either Rangoon oil, Castor oil, or Cotton oil mixed with linseed
oil in suitable proportions form effective and economic fluxes which can be used
with great advantage in the treatment of such plates in lieu of palm oil, as I thus
considerably reduce the cost of manufacture without in any way deteriorating
from the quality of the plates.
With regard to such compound fluxes I subjoin a tabulated formula shewing the
combinations and proportions of the various vegetable oils which I preferably
employ to produce the same but I wish it to be clearly understood that such
formula is not arbitrary as such combinations and proportions may be varied
without departing from the principle of my invention which is to economise the
cost of the manufacture of tin and terne plates by substituting cheap vegetable
oils either as simple or compound fluxes in lieu of palm oil as hitherto employed.
The following is the formula above referred to

page_text: The method of using these improved fluxes both simple and compound is similar
to that now employed when using palm oil
Having thus fully described and ascertained the nature of my said invention
I would have it understood that I claim as novel and of my invention and
discovery in the treatment of tin and terne plates
Firstly The employing cheap vegetable oils either as simple or compound fluxes
in the manufacture and treatment of such plates
Secondly-The compound fluxes composed respectively of the vegetable oils
combined in the proportions hereinbefore specified or any mere modification
thereof
In witness whereof I the said David Grey have hereunto set my hand and seal
this eighth day of December in the Year of Our Lord One thousand eight hundred
and eighty three