NEW OR IMPROVED MACHINERY TO BE USED IN THE MANUFACTURE OF TIN PLATES AND TERNE PLATES, AND IRON PLATES COATED WITH LEAD
Year: 1861

page_text: PROVISIONAL SPECIFICATION left by Robert Kelly and John Shake-
speare at the Office of the Commissioners of Patents, with their
Petition, on the 25th July 1861.
We, ROBERT KELLY, of Wilden, near Stourport, in the County of Worcester,
Sorter of Tin Plates, and JOHN SHAKESPEARE, of Dudley, in the County of
Worcester, Manufacturer, do bereby declare the nature of the said Invention
for "NEW OR IMPROVED MACHINERY TO BE USED IN THE MANUFACTURE OF TIN
PLATES AND TERNE PLATES, AND IRON PLATES COATED WITH LEAD," to be as
follows:-
Our Invention consists of the machanery herein-after described to be used
in the manufacture of tin plates and terne plates, and iron plates coated with
lead, that is to say, in the manufacture of thin plates or sheets of iron coated
with tin, or a mixture of tin and lead, or with lead.
For convenience of description we will herein-after describe our Invention
in connection with the manufacture of tin plates.
Our Invention consists of two machines, one of the said machines being
used for scouring, or cleaning the plates or sheets of iron prior to their
immersion in the bath of melted tin, and the other machine being used for
cleaning off the grease from the plates, and polishing the surface of the plates
after they are coated with tin. The first, or scouring machine, consists
essentially of three pairs of rolls, the first and third pair being guide rolls,
and the middle pair baving brushes on their cylindrical surfaces. The said
rolls are situated horizontally, and a hopper containing a mixture of sand and

page_text: water is situated over the upper roll of the middle pair, and the lower roll of
the said middle pair dips in a trough also containing sand and water. At the
back of the middle pair of rolls a pair of brushes are situated, the bristles of
which are opposed to each other. In using the machine the several rolls are
set in motion, and sand and water are supplied from the hopper and trough to
the middle pair of rolls, the brushes on which scour both sides of the plate
with the said sand and water as the plate passes through the machine. After
the plate has been scoured by the rolls as it leaves the said rolls it passes
between the before-mentioned fixed brushes, and is thereby cleaned of all
adbearing sand. After passing from this machine the plate is coated in the
ordinary manner, and the grease which is left on the plate is cleaned off, and
the surface of the plate polished by means of the second machine.
The said second or polishing machine-consists of a series of nine pairs of
rolls situated horizontally. The said rolls are all of the same or nearly the
same diameter, and the first, third, fifth, seventh, and ninth pairs of the said
rolls are guide rolls. The second, fourth, sixth, and eighth pairs are cleaning
and polishing rolls. All the rolls are made of wood, and the cleaning and
polishing rolls are covered with cleaning and polishing material. The first
pair of cleaning and polishing rolls are covered with carpeting or coarse
woollen fabric, and all the other cleaning and polishing rolls are covered with
sheep skins with the wool on. In front of the first pair of rolls is a wiper of
carpet, or such like material, and at the end of the series of rolls is another
wiper of sheep skin. Over each pair of cleaning and polishing rolls is a
hopper, from which sharps are supplied to the said rolls, and between each
pair of rolls is a brush to brush off the sharps. In using the machine all the
rolls are set in motion, and the plate to be cleaned and polished is passed
through the first wiper into the machine. While passing between the rolls of
the several pairs it becomes thoroughly cleaned from grease, and its surface is
highly polished.