Improvements in the Manufacture of Hollow-ware.
Year: 1890

page_text: Date of Application, 25th Aug., 1890.
Complete Specification Left, 23rd May, 1891-Accepted, 27th June. 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Hollow-ware.
I, MATTHEW SWAIN, of Railway Foundry, Newton Heath, Manchester, Iron
Founder, do hereby declare the nature of this invention to be as follows:-
The improvements relate to the manufacture of hollow-ware such as saucepans,
kettles, and other cooking utensils, and have for object the superseding of the
necessity of tinning or coating the inside of the same.
To accomplish this and to effect my improvements, I construct a lining for
cast iron or other metal hollow-ware, composed of tin-plate, thin brass, steel,
copper, or any other. suitable metal plates or sheets, which lining is placed
within a mould of sand prepared from a pattern, or within a chill or metallic
mould, and is either filled with sand rammed tightly therein, or has placed
within the same a metallic or other core, fitting fairly tight. The exterior of
the lining may be prepared or not with a coating of plumbago or other substance.
I then pour molten metal into the mould, when a cast shell is produced upon
the lining of thin metal already described.
By preference, I stamp or press this lining of tin-plate, or other metal plate
or sheet, into shape by suitable dies and press, from single sheets, but the same
may be formed by soldering, by folding the joints at the edges, or in any other
manner.
Also by preference I form the rim of the hollow-ware vessel, to be lined,
with a slight projection or flange all round, over which the edge of the tin-
plate or other metal plate or sheet lining is turned or folded, as a means of
further securing the same in the vessel; but this may be accomplished by
soldering round the edge, or by rivetting, or by other means, and other variations
may be made in the details of carrying out my invention without departing from
the peculiar character thereof, which mainly consists in manufacturing hollow-
ware vessels by casting the same upon a lining formed of tin-plate or other
metal plate or sheet, in lieu of tinning or coating the interior surface or other
processes such as at present obtains.
Dated this 23rd day of August 1890
WILLIAM GADD, C.E.,
Agent.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Hollow-ware.
I, MATTHEW SWAIN, of Railway Foundry, Newton Heath, Manchester, Iron
Founder, 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 :--
The improvements relate to the manufacture of hollow-ware such as saucepans,
kettles, and other cooking utensils, and have for object the superseding of the
necessity of tinning or coating the inside of the same.
To accomplish this and to effect my improvements, I construct a lining for
cast iron or other metal hollow-ware, composed of tin-plate, thin brass, steel,
copper, or any other suitable metal plates or sheets, which lining is placed
within a mould of sand prepared from a pattern, or within a chill or metallic
mould, and is either filled with sand rammed tightly therein, or has placed
within the same a metallic or other core, fitting fairly tight. The exterior of
Price 6d.

page_text: the lining may be prepared or not with a coating of plumbago or other substance.
I then pour molten metal into the mould, when a cast shell is produced upon the
lining of thin metal already described.
By preference, I stamp or press this lining of tin-plate, or other metal plate
or sheet, into shape by suitable dies and press, from single sheets, but the same
may be formed by soldering, by folding the joints at the edges, or in any other
manner.
Also, by preference, I form the rim of the hollow-ware vessel, to be lined,
with a slight projection or flange all round, over which the edge of the tin-plate
or other metal plate or sheet lining is turned or folded, as a means of further
securing the same in the vessel; but this may be accomplished by soldering
round the edge, or by rivetting, or by other means.
But that the improvements may be better understood, I will, with the aid of
the accompanying drawing, proceed more fully to describe means employed
by me.
DESCRIPTION OF DRAWING.
a, a, is the cast portion of the hollow-ware vessel, which may be of any shape
desired, and b, b, is the lining thereof, both shown in section.
The
The mould, for casting the portions a, a, is formed in the usual manner in
sand from a pattern, or a chill or metallic mould may be employed.
prepared thin sheet lining b, b, is then placed within the mould, and the hollow
or inside of this lining is filled with sand and rammed tight, or a metallic or
other core is placed within the same, and which core may be in sections and
provided with a wedge or wedges for tightening up, as will be readily under-
stood. The metal is then poured into the mould and surrounds the thin lining.
confining the same as it cools, when the hollow-ware is taken out of the mould
ready lined.
I prefer to finish this off by turning over the lining as shown at b¹, b1; but
other modes of making a finish to the edge may be adopted, and other variations
may be made without departing from the peculiar character of the invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what
I claim is
1. In the manufacture of hollow-ware, the casting of the same around a thin
metallic lining previously prepared for the purpose, in manner substantially as
herein shown and described.
2. Hollow-ware goods manufactured with a thin metallic lining therein, such
lining being inserted in the mould previous to casting the metal body of such
hollow-ware, in manner substantially as herein shown and described.
Dated this 21st day of May 1891.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester, Agent.