IMPROVEMENTS IN APPARATUS. EMPLOYED IN THE MANUFACTURE OF TIN AND TERNE PLATES
Year: 1865

page_text: LETTERS: PATENT to John Saunders and Joseph. Piper, of Cookley Iron
Works, Kidderminster, for the Invention of "IMPROVEMENTS IN APPARATUS.
EMPLOYED IN THE MANUFACTURE OF TIN AND TERNE PLATES."
PROVISIONAL SPECIFICATION left by the said John Saunders and Joseph
Piper at the Office of the Commissioners of Patents, with his Petition,..
on the 12th July 1865.
We, JOHN SAUNDERS and JOSEPH PIPER, of Cookley Iron Works,. Kidder-.-
minster, do hereby declare the nature of the said Invention for "IMPROVEMENTS.
IN APPARATUS EMPLOYED IN THE MANUFACTURE OF TIN AND-TERNE PLATES," to be:
as follows:-
This Invention has for its object improvements in apparatus employed in>
the manufacture of tin and terne plates, and consists in improvements in the
apparatus described in the Specification of a Patent granted to us, dated the
19th day of March 1863 (No. 788:) Heretofore, in constructing this appa--
ratus the upper trough, within which the pair of rollers work; the trunk
descending from such upper trough, and the lower trough have been cast in
one piece. This, in practice, has been found in some eases to be inconvenient
and objectionable, more particularly in the constructing apparatus suitable for
large tin or terne plates.
Now, according to the present Invention the upper trough, the trunk'
descending therefrom, and the lower trough are cast separately. The three

page_text: parts are respectively formed with flanges and projections to receive screw
holts, by which the three parts are securely fixed together. By thus casting.
these parts separately the making of the moulds is more easy and the castings.
are more readily produced than when casting all three in one. The carriage
and setting up of the apparatus are also more conveniently performed,, and in
the event of one part being permanently injured it may readily be removed
and replaced by another similar part. In some cases in place of casting the
upper trough and descending trunk separate, these two parts are cast in one
piece separate from the lower trough, and they are connected by screw bolts,
or the upper trough is cast in one piece whilst the lower trough is cast
in one piece with the trunk. The shafts or axles of the rollers which
work in the upper trough do not pass through the end of such trough,
as was formerly the case, but they are geared together at one end within
the trough by cog wheels or pinions, and one of such cog wheels or pinions
receives. motion from a cog wheel on a driving shaft which is above the end
of the upper trough. The small grease trough, formerly used at the end of
the nner trough where the roller shafts or axes passed out of the end of the
trough, is dispensed with, and also the tube which descends therefrom.
The lifting apparatus is as heretofore. One of the rollers is pressed
towards the other by two levers, the upper ends of which are acted on by
springs and screw nuts,
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Saunders and Joseph Piper in the Great Seal Patent
Office on the 9th January 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN S
SAUNDERS and JOSEPH PIPER, of Cookley Iron Works, Kidderminster,, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twelfth day of July, in the year of our Lord One
thousand eight hundred and sixty-five, in the twenty-ninth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
John Saunders and Joseph Piper, Her special licence that we, the said John
Saunders and Joseph Piper, our executors, administrators, and assigns, or such
others as we, the said John Saunders and Joseph Piper, our executors, adminis
trators, 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

page_text: of Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "IMPROVEMENTS IN APPARATUS EMPLOYED IN THE MANUFACTURE
OF TIN AND TERNE PLATES," upon the condition (amongst others) that we, the
said John Saunders and Joseph Piper, our executors or administrators, by
an instrument in writing under our or their hands and seals, or under the
hands and seals of one of us or them, should particularly describe and ascer-
tain 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 John Saunders and Joseph Piper, do
hereby declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
This Invention has for its object improvements in apparatus employed in
the manufacture of tin and terne plates, and consists in improvements in the
apparatus described in the Specification of a Patent granted to us dated
the 19th day of March 1863 (No. 738). In this apparatus the tin or terne
plates are caused to pass through heated grease to equalize and to remove the
excess of the coating.
Heretofore in constructing this apparatus the upper trough within which
the pair of rollers work, the trunk descending from such upper trough, and
the lower trough have been cast in one piece. This in practice has been
found in some cases to be inconvenient and objectionable, more particularly
in the constructing apparatus suitable for large tin or terne plates.
Now according to the present Invention the upper trough, the trunk
descending therefrom, and the lower trough are cast separately. The three
parts are respectively formed with flanges and projections to receive screw
bolts, by which the three parts are securely fixed together. By thus casting
these parts separately the making of the moulds is more easy, and the castings
are more readily produced than when casting all three in one. The carriage
and setting up of the apparatus are also more conveniently performed, and in
the event of one part being permanently injured it may readily be removed-
and replaced by another similar part. In some cases in place of casting the upper
trough and descending trunk separate these two parts are cast in one piece,
separate from the lower trough, and they are connected by screw bolts, or the
upper trough is cast in one piece whilst the lower trough is cast in one piece
with the trunk.
The Drawings, hereunto annexed shew apparatus constructed in the manner"
:

page_text: we prefer. Figure 1 is a plan of this apparatus; Figure 2 is an end view of
the same; and Figure 3 is a section taken at the line 1, 1, Figure 1.
a is the upper trough, within which the rollers b, b, work; c is the trunk
descending from this upper trough, and d is the lower trough. These parts a,c,:
and d are, as is shown, cast separately, and truly fitted and bolted together, or
two of these parts may be cast together and bolted to the 'third-; but this is
not desirable. The apparatus is, as heretofore, set in-a furnace to keep the
contents heated, the lower part d contains tin or terne metal, over which
in the parts a and c is the heated grease with which the trough is filled
over the axles of the rollers b, 6'. These rollers are driven from the axis e
which receives motion from a belt passing around a pulley e¹ around it. The
axis e is mounted in bearings, that at one end is on the cross-piece fand
bolted to the two sides of the upper trough a, and the other bearing is on the
standard bolted to the end of the said trough; e is a spur wheel on the
axis e, gearing with a pinion g on a short axis h, and this pinion g gears with
another similar pinion g' on the short axis h¹; the axes h and h¹ are carried
in bearings in the bridge picce i, which drops into the end of the trough a,
and is there. secured by bolts. The axis of the roller b is carried in bearings
on the brackets.k, k, fixed to the side of the trough, whilst the bearings of the
axis of the roller bare in links k¹ suspended from other brackets ; l, l, are
strong springs acting on the backs of the links ¹ and pressing, the roller b' up
to the roller b; m, m, are coupling blocks which couple the axes of the
rollers b, b', with short axes n, n; the axes have grooves formed in them, to
which the coupling blocks fit; o, o, are similar blocks coupling the axes n, n,
with the axes h and h', and thus the rollers band bare continuously driven; p
is a guide plate which is dropped into its place between the brackets k, and is
further supported by the two end guides 9, 7, which catch on to it, as is shewn,
there being studs q¹ which drop into notches in the plate p and the lower ends
of the guides g fit into the trunk c. By shifting the guides q from one
notch to another the distance between them can be adjusted to correspond
with the width of the plates which the apparatus is to receive, These plates,
after they have been coated with tin or terne metal, are each in succession
passed down behind the guide plate p and between the end guides q, q; the
lower edge of the plate comes against the arms r, r, which are mounted on an
axis r, carried in bearings on the trough a, and weighted with a counterpoise
weight, which tends to keep the arms r¹ in the position in which they are
shewn; when, however, as a plate is introduced its edge comes against these
arms its weight is sufficient to displace them, and the plate descends into the
racks, the arms r.now return, and in so doing they throw: the upper edge of

page_text: the plate forwards until it rests on the bearing strips c³, c, fixed in the trunk c,
and these strips serve also to guide the plates truly down into the rack s;
this rack consists of the two side arms s¹, s, to which the chains t, t, for raising
and lowering the rack are attached, also of a bottom bar s³, which at its ends
is guided by the guide strips e, fixed at the ends of the trunk c, and also of
three or other number of bent rods which guide the plate into the rack and
retain it when there. The chains t, t, pass over curved arms u. u, of trough-
like section, to the roller v, on which they are wound, and by winding up
more or less of these chains on to this roller the distance the rack s descends
into the trunk c can be adjusted according to the length of plate which is
being worked. The arms u, u, are fixed on the axis u', on which is a handle u³,
and by depressing this handle the rack is raised, and in this manner tho upper-
edge of plate, which has just been put into the hot grease is raised to the nip
of the rollers 6, 61, which immediately take it and raise it out of the trough,
and at the same time they press the plate between them, so as to take off any
excess of metal there may be on the surface, and they equalize that which
remains on the plate. As the plates are delivered by the rollers they are
taken away by the workman.
In witness whereof, we, the said John Saunders and Joseph Piper, have
hereunto set our hands and seals, this Thirtieth day of December, in the
year of our Lord One thousand eight hundred and sixty-five.