MENTS IN THE MANUFACTURE OF TERNE AND TIN PLATES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I GEORGE NURSE of Llanmartin near Newport, Monmouthshire Tin plate
Manufacturer, do hereby declare the nature of my said invention for "IMPROVE
MENTS IN THE MANUFACTURE OF TERNE AND TIN PLATES," to be as follows:—
The object of my invention is to finish terne and tin plates in a more
expeditious manner and produce a better effect than heretofore.
For the purpose of my invention I affix rolls above the grease pot or above the
lead pot to remove superfluous lead and to keep the tin pot or last dipping bath
charged with an extra quantity of tin after the coated plates have been rolled to
remove the lead from the surface, to prevent an unnecessary quantity of lead being
carried to the last pot before entering the (hot air) chamber which is already
employed to drain off the superfluous alloy (tin and lead).
To obtain greater finish and brighter surface to the plates instead of passing,
them through the chamber I pass them through a pair of rolls after passing them
through the bath containing the extra quantity of tin.

page_text: COMPLETE SPECIFICATION.
I GEORGE NURSE of Llanmartin near Newport, Monmouthshire, Tin plate
Manufacturer do hereby declare the nature of my invention for "IMPROVEMENTS
IN THE MANUFACTURE OF TERNE AND TIN PLATES" and in what manner the same
is to be performed to be particularly described and ascertained in and by the
following statement :—
The object of my invention is to finish terne and tin plates in a more
expeditious manner and produce a better effect than heretofore.
5
For the purpose of my invention I affix rolls above or at the upper portion of
the grease pot or of the lead pot to remove superfluous lead and to keep the tin
pot or last, dipping bath charged with an extra quantity of tin after the coated 1
plates have been rolled to remove the lead from the surface to prevent an
unnecessary quantity of lead being carried to the last pot before entering the
(hot air) chamber which is already employed to drain off the superfluous alloy
(Tin and Lead).
1
>
To obtain greater finish and brighter surface to the plates instead of passing 1
them through the chamber I pass them through a pair of rolls after passing them
through the bath containing the, extra quantity of tin. :.
My invention will be understood by reference to the annexed drawings in which.
I show at Figure 1 in plan a view of the several pots by which the process of
coating terne plates can be effected and an extra finish given to the plates by two 2
operations beyond those usually adopted in such treatment or manufacture.
A is the cold grease pot and B the tin pot in which the plates which have been
prepared in the usual manner are dipped in succession. The plates are then passed.
into the soaking pot C and when removed are placed upon the stove D which
occupies a position between the soaking pot C and the wash pot E from thence
the plates are put into the second grease pot F between the rolls G which are
arranged above or at the upper portion of the pot F. Thus far the process is the
same or substantially the same usually adopted the plates being then cleaned to
remove any grease that may be on them after leaving the rolls G.
The purport of my present invention is to dip the platos in the pot H containing
a greater proportion of tin than that of lead which improves the surface of the
plates the excess of tin taken up by the plates in the last mentioned bath being
removed by the rolls I in the finishing bath J.
Instead of the last mentioned or finishing operation being performed by rolls
the plates after leaving the pot H may be placed in the hot air chamber K as
shown at Figure 2 in which chamber the superfluous alloy (Tin and lead) can
drain away.
Figure 3 is a longitudinal section of the several pots with the hot air chamber
as herein before described.
•
Instead of the hot air chamber being of rectangular shape as shown in the
drawings it may be of circular shape and the rack supporting the plates may have
a movement imparted to it.

page_text: The hot air chamber can be kept at a lower temperature than usual on account
of the small quantity of lead in the pot H.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
:
The improved manufacture or treatment of terne and tin plates in the baths H
and J or in H and K as an addition to the ordinary treatment for the purpose
describod.