IMPROVEMENTS IN THE MANUFACTURE OF TIN AND TERNE PLATES
Year: 1861

page_text: LETTERS PATENT to Rees Taylor and Thomas Price, of Ty-du Tin Plate
Works, Bassaleg, in the County of Monmouth, Mechanics, for the
Invention of "IMPROVEMENTS IN THE MANUFACTURE OF TIN AND TERNE
PLATES."
Sealed the 11th January 1862, and dated the 15th July 1861.
PROVISIONAL SPECIFICATION left by the said Rees Taylor and Thomas
Price at the Office of the Commissioners of Patents, with their Petition,
on the 15th July 1861.
We, REES TAYLOR and THOMAS PRICE, of Ty-du Tin Plate Works, Bassaleg,
in the County of Monmouth, Mechanics, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF TIN AND TERNE
PLATES," to be as follows:-
Our Invention consists in placing a pair of rolls or rollers in the vessel
containing the melted tin or mixture of tin and lead with which the plates are
to be coated; these rollers work in the melted metal to the depth of some
few inches, and have the usual means for increasing, diminishing, and
regulating the pressure. The plates are then passed through the rollers, and
will of course be coated with the tin, whilst the pressure will cause the tin to
be spread out equally over the whole surface of the plate. By this means we
are enabled not only to use more lead with the tin, and make larger plates at

page_text: a less cost and more speedily than at present, but entirely obviate the use of
the boiling grease or fat into which, by the present mode of manufacture, the
plates are obliged to be dipped to remove the superfluous metal.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Rees Taylor and Thomas Price in the Great Seal Patent
Office on the 15th January 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, REES
TAYLOR and THOMAS PRICE, of Ty-du Tin Plate Works, Bassaleg, in the
County of Monmouth, Mechanics, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of July, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fourth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said Rees Taylor and Thomas Price, Her special licence that we, the
said Rees Taylor and Thomas Price, our executors, administrators, and assigns,
or such others as we, the said Rees Taylor and Thomas Price, our executors,
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 THE MANUFACTURE OF TIN AND TERNE
PLATES," upon the condition (amongst others) that we, the said Rees Taylor and
Thomas Price, our executors or administrators, by an instrument in writing
under 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 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 Rees Taylor and Thomas Price, 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, that is to say :-
Our improvements in the manufacture of tin and terne plates relate to the
process we adopt and the method and means we use in order to effect a more
perfect, expeditious, and economic tinning or coating of the plates.
Hitherto in the manufacture of these plates, after any moisture left on the

page_text: plate after the process of "pickling" is removed, the plate is transferred to a
pot containing molten tin or terne metal, known as the "tinman's" pot, and
after standing a little time in this pot it is again transferred to another called
the "washman's" pot, containing also tin or terne metal of a finer or cleaner
quality; here the plate has the superfluous metal removed from its face, and
receives a smooth surface; from this pot it is then removed to another pot
filled with melted tallow, where the excess of the tin or terne metal is caused
to drain off. In some cases other subsequent operations are performed, so as
to perfect the finish of the plate, the object being to obtain an equal distribution
of the tinning metal over the surface of the plate with the smallest quantity of
the metal.
Our improvements commence at the end of that stage of the process
after the use of the "washman's" pot, and-is-as-follows:-After the opera-
tion at the "washman's" pot the plates are passed on to another pot, which
we call the "finishing" pot. This pot contains a mixture of tin or terne
metal heated up to the melting point, and having its surface covered with fat
or melted grease to retard oxidation. Within this pot we place a pair of rolls
so disposed as to work within the metal, and immersed to such a depth that
the line joining the centres of the rolls (that is, the line of pressure, shall be
just a little way above the surface of the melted metal, or the surface of the
melted metal shall be slightly below the line of pressure of the rolls, and just
so far below as will prevent the metal from rising on the sides of the plate
when passed through the rolls above the line of pressure. The rolls have the
usual means for increasing, diminishing, and regulating the pressure, and
underneath them are fixed guides or ways for the purpose of conducting the
plates between them. The plates after leaving the "washman's" pot are
passed into the last-mentioned finishing pot, received into the guides, and
passed between the rolls, which are driven by suitable power, and are then
removed by tongs or other suitable machinery. The action of the rolls when
so disposed and arranged in the tin or terne metal is such as to spread the
metal equally, smoothly, and thinly over the surface of the plates, thus obviating
any future operations, and enabling us to use more lead with the tin, to
dispense with the use of a large quantity of grease, and to make larger plates
more quickly and economically than at present.
Having now described the nature of our Invention, and how the same is
carried into effect, we wish it understood that what we claim and desire
secured by the before in part recited Letters Patent is, the use and applica-
tion in the manufacture of tin and terne plates of a pair of rolls to work
immersed in a vessel containing the melted tin or terne metal, and so arranged

page_text: within the same that the line joining their centres or the line of pressure shall
be placed just so far above the surface of the melted tin or terne metal that in
passing the plate along the guides and between the moving rolls the metal
shall not rise on the plate above the point where it is in contact with the
surface of the rolls, substantially as set forth and more fully detailed in this
Specification.
In witness whereof, we, the said Rees Taylor and Thomas Price, have
hereunto set our hands and seals, this Eleventh day of January, One
thousand eight hundred and sixty-two.
REES TAYLOR.
(L.S.)
THOMAS PRICE. (L.S.)
REES TAYLOR.
(L.S.)
THOMAS PRICE. (L.S.)