Apparatus for the Manufacture of Tin and Terne Plates.
Year: 1887

page_text: Date of Application, 26th Apr., 1887
Complete Left, 26th Jan., 1888
Complete Accepted, 2nd Mar., 1888
PROVISIONAL SPECIFICATION.
Apparatus for the Manufacture of Tin and Terne Plates.
Wo, ARTHUR JAMES MASKREY Manager of Tinplate Works of Lion Tinplate
Works, Nantyglo in the County of Monmouth and PHILIP SAMUEL PHILLIPS Tin-
plate Manufacturer of Crumlin Hall, Crumlin in the County of Monmouth do hereby
declare the nature of this invention to be as follows:-
This invention relates to apparatus for the manufacture of tin and terne plate
so arranged that the coating of successive plates is effected in a continuous manner
by the aid of two operators, the one feeding the plates into the bath and the other
removing them as they are delivered from the rollers. The bath is a basin of
rectangular form with a curved bottom, divided about the middle by a partition
extending down some distance into the metal. This partition is inade hollow, its
internal space being open at the top so that it can be more or less charged with the
molten metal. The heat being applied to the bath at the one side of the partition
which is the feeding side, it is conducted to the other side where the metal is cooled
by a layer of grease more or less through the partition according as there is more or
less metal in the hollow of the partition. When there is little or no metal in the
hollow, the air which occupies it being a bad conductor of heat, the side where
the grease and the rollers are situated remains considerably cooler than the feeding
side.
Within the bath there are fixed two or more sets of guide bars of circular curvature
sweeping round under the partition, and below those are guide pullies for an endless
chain which passes over a chain wheel mounted on the top of the bath and driven at
a speed suitably proportioned to that of the delivering rollers. Some of the links of
this chain have studs projecting from them, these studs being at intervals apart
suited to the length of the plates operated on. As each stud presents itself over the
top of the bath, the feeder places a plate in front of it, introducing the front edge of
the plate between the curved guide bars. By the travel of the stud with the chain the
plate is carried along these guides bending as it passes through between them until
its front edge directed upwards is engaged between the lower rollers that are situated
at the level where the grease lies over the metal. When the plate is thus engaged

page_text: by the rollers, the stud that had propelled it and which had travelled along the space
between the two sets of guide bars passes away from the guides with the chain around
the lower guide roller, and returns thence to the top again. The plate seized by the
rollers is drawn through between them passed through the grease and then through
the upper rollers from which it is delivered as a tin or terne plate. Thus as stud
after stud presents itself over the chain wheel, plate after plate fed into the bath is
carried round the guides immersed in the metal and is passed through the rollers and
the grease. In order to prevent as much as possible contact of the refuse known as
"scruff" with the plates, the lower rollers are almost entirely boxed in by guard
plates or fenders, and similar guard plates or fenders are applied at the feeding mouth
of the bath leaving only a comparatively narrow space admitting the plates as they
are introduced..

page_text: Apparatus for the Manufacture of Tin and Terne Plates.
We, ARTHUR JAMES MASKREY Manager of Tinplate Works of Lion Tinplate Works,
Nantyglo in the County of Monmouth and PHILIP SAMUEL PHILLIPS Tinplate
Manufacturer of Crumlin Hall, Crumlin in the County of Monmouth do hereby
declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
This invention relates to apparatus for the manufacture of tin and terne plates so
arranged that the coating of successive plates is effected in a continuous manner by
the aid of two operators, the one feeding the plates into the bath and the other
removing them as they are delivered from the rollers. The bath is a basin of
rectangular form with a curved bottom, divided about the middle by partition
extending down some distance into the metal. This partition is made hollow, its
internal space being open at the top so that it can be more or less charged with the
molten metal. The heat being applied to the bath at the one side of the partition
which is the feeding side, it is conducted to the other side (where the metal is covered
by a layer of grease) more or less through the partition according as there is more
or less metal in the hollow of the partition. When there is little or no metal in the
hollow, the air which occupies it being a bad conductor of heat, the side where
the grease and the rollers are situated remains considerably cooler than the feeding
side.
Within the bath there are fixed two or more sets of guide bars of circular curvature
sweeping round under the partition, and below these are guide pullies for an endless
chain which passes over a chain wheel mounted on the top of the bath and driven at
a speed suitably proportioned to that of the delivery rollers. Some of the links of
this chain have studs projecting from them, these studs being at intervals apart suited
to the length of the plates operated on. As each stud presents itself over the top of
the bath the feeder places a plate in front of it, introducing the front edge of the plate
between the curved guide bars. By the travel of the stud with the chain the plate is
carried along these guides bending as it passes through between them until its front
edge directed upwards is engaged between the lower rollers that are situated at the
level where the grease lies over the metal. When the plate is thus engaged by the
rollers, the stud that had propelled it and which had travelled along the space between
the two sets of guide bars passes away from the guides with the chain around the
lower guide roller and returns thence to the top again. The plate seized by the rollers
is drawn through between them passed through the grease and then through the upper
rollers from which it is delivered as a tin or terne plate. Thus as stud after stud
presents itself over the chain wheel, plate after plate fed into the bath is carried round
the guides immersed in the metal and is passed through the rollers and the grease.
In order to prevent as much as possible contact of the refuse known as "stuff" with
the plates, the lower rollers are almost entirely boxed in by guard plates or fenders,

page_text: and similar guard plates or fenders are applied at the feeding mouth of the bath
leaving only a comparatively narrow space admitting the plates as they are
introduced.
Fig. 1 of the accompanying drawings is a longitudinal section of the apparatus for
this purpose, Fig. 2 is a transverse section on Z Z of Fig. 1, and Fig. 3 is a plan.
A is the bath made with a curved bottom, and widened at one end to receive two
pairs of rollers R with their bearings and gearing, which, being arranged in the usual
way, are not shewn. The heat for melting the metal is applied at the right hand side
of the bath, between which and the left hand side descends a hollow partition B.
When the interior of this partition contains only air, heat is so imperfectly conducted
through it that while the metal on the right hand side is fused that on the left hand
side may be comparatively cool and even solid. But by pouring into the hollow of B
more or less of the molten metal the conduction of heat through the partition can
be so adjusted that the metal on the left side is maintained in a fused condition but
somewhat cooler than that on the right side. There are two other partitions (C
between which the plates are introduced into the bath. These serve to keep the metal
where the plates enter it comparatively free from "scruff" or dross. There is also a
casing D enclosing the lower pair of the rollers R and serving to prevent access of
scruff or dross to them. The metal M in the bath is kept about the level of the
axes of the lower rollers R and above that is the molten grease G up to about the
level of the axes of the upper rollers. Within the bath are fixed four curved guide
bars E the one pair above the other, and the pair on the one side separated by a
narrow interval from those on the other side. At the top of the bath is mounted a
chain wheel F driven at a speed suited to that of the rollers R. Round this wheel F
along part of the guides E and round guide pullies H, I passes a chain which can be
moro or less tightened by means of the pulley I which is mounted on a lever L that
can bo moved by a setting screw N. On the chain at intervals somewhat greater than
the length of one of the plates P that is to be operated on, are fixed studs K, which
travelling with the chain project through the interval between the guides E. An
attendant introduces a plate P between the partitions C in front of one of the
studs K on the travelling chain. As the chain moves onwards in the direction of
the arrow the stud K pushes the plate P in front of it along hetween the upper and
lower guides E, the plate bending to their curvature. Before the stud K leaves the
hinder edge of the plate, its front edge is engaged by the lower rollers R which draw
up and pass
it through the upper rollers, from which it is removed by an attendant.
Thus as the chain continues to travel plato after plate is advanced by it through the
bath and delivered to the rollers.
it
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the saune is to be performed, we declare that what we
claim is
Apparatus for the manufacture of tin and terno plates, consisting of a bath partly
divided by a hollow partition and having two pairs of curved guide bars and two
pairs of rollers fixed therein, in combination with a chain wheel, guide pullies and a
continuously travelling chain with studs projecting during part of their course
between the guide bars, arranged and operating substantially as herein described.
Dated this 26th day of January 1888.
ABEL & IMRAY,
Agents for the Applicants.