IMPROVED APPARATUS TO BE USED IN THE MANUFACTURE OF TIN And TERNE PLATES
Year: 1871

page_text: LETTERS PATENT to John Jones Jenkins, of Swansea, in the County
of Glamorgan, Tin Plate Manufacturer, for the Invention of
cr
IMPROVED APPARATUS TO BE USED IN THE MANUFACTURE OF TIN And
TERNE PLATES."
PROVISIONAL. SPECIFICATION left by the said John Jones Jenkins
at the Office of the Commissioners of Patents, with his Petition,
on the 16th December 1871.
I, JOHN JONES JENKINS, of Swansea, in the County of Glamorgan,
Tin Plate Manufacturer, do hereby declare the nature of the said
Invention for "IMPROVED APPARATUS TO BE USED IN THE MANUFACTURE
OF TIN AND TERNE PLATES," to be as follows:-
My Invention of improved apparatus to be used in the manufacture
of tin and terne plates, relates to that part of the apparatus which is
called the tin pot," that is, the vessel containing the molten tin in
which the cleaned plates are dipped for the purpose of coating them

page_text: with tin or other metal or alloy used for covering or protecting the iron
from oxidation.
"
The object of the Invention is to facilitate the coating operation by
enabling the workmen to place the iron plates in a proper position in
the pot and subsequently to change that position therein, so that the
plates when properly coated may be, withdrawn from the molten metal
bath with facility. To this end I adapt to the "tin pot an adjustable
frame on which the plates are supported by their lower edges at the
proper height in the molten metal, according to their size. The lower
part of this frame is formed of cross bars suspended by, links from lugs or
screwed sockets through which pass vertical screwed rods, and by turning
these latter the lugs and cross bars are raised or lowered in the metal
bath. The plates to be tinned or coated are introduced one by one into-
the molten metal bath, where they remain for a short time resting on
their edges on the cross bars. When a sufficient number have been
introduced and have taken up the proper amount of tin, the plates are
thrown over to the other side of the pot by means of a rocking lever
acted on by a treadle. This will bring their upper edges opposite to the
exit openings, from which they are then withdrawn by the workman. by
means of his tongs. In order to keep the lower edges of the plates in
their proper place on the cross bars of the adjustable frame two or more
inclined projecting bars are fixed on the cross bars. Two or more
pendent guides are also adapted to the exit aperture of the pot, so that
the upper edges of the plate may rest against these pendent guides
so that they may be in a convenient position to be withdrawn, as already
explained.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Jones Jenkins, in, the Great Seal Patent
Office on the 15th June 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN 3
JONES JENKINS, of Swansea, in the County of Glamorgan, Tin Plate
Manufacturer, send greeting.
"WHEREAS -Her most Excellent Majesty Queen Victoria, by Her.
Letters Patent; bearing date the Sixteenth day of December, in the year.
of our Lord One thousand, eight hundred and seventy-one, in the thirty-- 3

page_text: fifth year of Her 'reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Jones Jenkins, Her special licence
that I, the said John Jones Jenkins, my executors, administrators,
'and assigns, or such others as I, the said John Jones Jenkins, my
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
** IMPROVED APPARATUS TO BE USED IN THE MANUFACTURE OF TIN AND TERNE
PLATES," upon the condition (amongst others) that I, the said John.
Jones Jenkins, my executors or administrators, by an instrument
in writing under my, 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 I, the said John Jones Jenkins, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to the Drawings
hereunto annexed and to the letters and figures marked thereon (that is
to say):
My Invention of "Improved Apparatus. to be used in the Manu-
facture of Tin and Terne Plates," relates to that part of the apparatus
which is called the "tin pot," that is, the vessel containing the molten
tin in which the cleaned plates are dipped for the purpose of coating
them with. tin or other metal or alloy used for covering the iron and
protecting it from oxidation.
The object of the Invention is to facilitate the coating operation by
enabling the workmen to place the iron plates in a proper position in the
pot and subsequently to change that position therein, so that the plates
when properly coated may be withdrawn from the molten metal bath
with facility.
In carrying out my Invention I adapt to the "tin pot" an
adjustable frame, on which the plates are supported by their lower
edges. This frame is placed at the bottom of the pot, but is capable of

page_text: being raised or lowered therein so as to be suspended at the proper
height in the molten metal, according to the size of the plates to be
operated upon.
1
z
In the accompanying Drawings the several Figures in Sheet I.
represent different views of the mode of combining or arranging the
tinning pot with the oil pan and other parts as fixed and ready for
working in the tinning house.
Fig. 1 is a plan view of the whole apparatus complete; Fig. 2 is a
front elevation of the same; Fig. 3 is a longitudinal vertical. section
taken in the line A, B, of Fig. 1; Fig. 4 is an end elevation; Fig. 5 is a
transverse vertical section taken in the line C, D, of Fig. 1; and Fig. 6
is a sectional plan view of a horizontal section taken in the line E, F, G, H,
of Fig. 4.
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A is the pan containing oil for fluxing plates before placing them in
the tinning pot; B is 'a grating in the pan A, and which may be raised,
or by means of the screws B' and B' lowered to suit any sized plate;
C is a divided plate to keep the plates together, so that they may
conveniently taken out of the oil pan by the workman and immersed in
the tinning pot D, to which my improvements are adapted, and the
construction and arrangement of which will be better understood by
referring to the several Figures in Sheet II., in which these parts are
drawn on an enlarged scale. The arrangement for passing the plates
from E to F, in Fig. 3, through the pot, is worked by the foot (as
shewn) by means of the levers, rods, and vertical rod with stirrup G, but
this could be worked either by manual or steam power. In Figures
4 and 5, H is a spout from the waste oil box to carry waste oil from
the plates back again to the oil pan A. In Figures 1, 3, and 6, I is 'the'
dripping pot in which the plates are dipped before going through the
finishing pot. K, L, Figures 2 and 3 are fire-grates to heat the pots;
the two fires lead into the same main flue, as shewn at M, Fig. 6.
The several Figures in Sheet II. represent the tinning pot with
gearing drawn to an enlarged scale. There are two arrangements
shewn on this Sheet of Drawings, the only difference between them
being the mode of working the levers for passing the plates through the
tin bath, and the use of the screws for lifting the frame or cradle for
supporting the plates.
-

page_text: Fig. 7 is a plan view of 'one arrangement; Fig. 8 is a sectional view
of the same taken in the line A, B, of Fig. 7; Fig. 9, is front elevation,
and Fig: 10 a horizontal section taken in the line C, D, of Fig: 9; Figures
11, 12, 13, and 14 are similar views of a modification of the arrangement
shewn at Figures 7, 8, 9, and 10. The frames or cradles, guides, levers,
and other parts are marked with the same letters of reference on both
arrangements, so that the same description will in a great measure
answer for both arrangements.
1
I is the oil box to contain the waste oil from the plates when inserted
in the tinning pot. This box is provided with a spout towards the oil
pan by which the oil may flow back again into the oil pan. K¹, K³, are
inclined guides to guide the iron plates on to the cradle or framé L,
where they rest in such a position that the levers M' will throw them
over from E to the opening F. L' is the cradle or frame to support the
plates while they are being submitted to the tinning process in the bath.
Projecting pièces P and P¹ are fixed on the cradle to stop the plates from
sliding forwards towards the end of the pot. This, cradle may be
adjusted vertically in the pot to suit any size of plate by means of the
screws Q, hand wheels Q¹, or other equivalent device whereby the
cradle L' may be raised or lowered in the pot. M³, M', are levers or
bars for pushing or passing the plates through the pot. from E to F.
These levers may be worked either by hand or steam, or by means of a
treadle. R, R, are top guides with parting plates to stop the plates
from rising in the metal bath while they are being tinned. The parting
plate also stops the scum or dirt from flowing over the opening F. The
plates to be tinned or coated are introduced one by one through the
opening E into the molten metal bath, where they will remain for a
short time resting on their edges on the cross bars or cradle L'. When
a sufficient number of plates have been introduced (as shewn by red
lines in the Drawing) and have taken up the proper amount of tin, they
are thrown over to the other side of the pot by means of a rocking
lever M', Fig. 12, acted on by means of a hand lever or by a treadle.
In order to allow this lever to get hold of the plates they are slightly
tilted over by introducing a bar or tongs behind them.
In the arrange-
ment shewn at Figures 7, 8, 9, and 10 this will be unnecessary, as the
arms M, Fig. 8, can be moved forward by the handles R, R. This will
bring the upper edges of the plates opposite to the exit opening F, from
which they are then withdrawn by the workman by means of his tongs.
4

page_text: In order to keep the lower edges of the plates in their proper place on
the cross bars of the adjustable frame or cradle L', two or more inclined
projecting bars P and P¹ are fixed on the cross bars of the frame or.
crádle:L':
Having now described my Invention of "Improved Apparatus to be
used in the Manufacture of Tin and Terne Plates," and having explained
the manner of carrying the same into effect, I claim as the Invention
secured to me by Letters Patent as aforesaid, adapting to the tinning
pot the apparatus or mechanical devices herein set forth, or any
equivalent mechanical devices whereby the tinned plates may be passed
from one side of the pot to the other so that they may be withdrawn
from a different opening from that by which they were introduced to the
tinning 'pot, as and for the purposes hercin set forth.
In witness whereof, I, the said John Jones Jenkins; have hereunto
set my hand and seal, the Fourteenth day of June, in the year of 1
our Lord One thousand cight hundred and seventy-two: