IMPROVEMENTS IN THE CONSTRUCTION OF ANNEALING POTS FOR USE IN TIN WORKS
Year: 1880

page_text: LETTERS PATENT to Silas Williams, of Llandaff, near Cardiff, in the County
of Glamorgan, for an Invention of "IMPROVEMENTS IN THE CONSTRUCTION
OF ANNEALING POTS FOR USE IN TIN WORKS."
PROVISIONAL SPECIFICATION left by the said Silas Williams at the Office
of the Commissioners of Patents on the 13th August 1880.
SILAS WILLIAMS, of Llandaff, near Cardiff, in the County of Glamorgan.
"IMPROVEMENTS IN THE CONSTRUCTION OF ANNEALING POTS FOR USE IN TIN
WORKS."
This Invention consists in improvements in the construction of annealing pots
for use in tin works, whereby the same are made stronger and more durable
than those constructed in the ordinary manner.
In order to prevent the extreme contraction and expansion caused by the action
of heat from injuriously affecting the annealing pot, I cast the lid of the latter
separately from the case, and when desired to form the joint I do so by means of
fire clay, and bolt the lid to the case by any suitable number of bolts, thereby
securing the two together in a perfectly air-tight manner.
The interior of the said
lid is provided with a series of brackets or ribs for the purpose of supporting the
same and preventing it from cracking when under the action of heat.
A band is placed round the pot or case to prevent the same from "buckling "and
collapsing.
The apparatus above described is, by preference, constructed of cast iron.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Silas Williams in the Great Seal Patent Office on the 10th February
1881.
SILAS WILLIAMS, of Llandaff, near Cardiff, in the County of Glamorgan.
"IMPROVEMENTS IN THE CONSTRUCTION OF ANNEALING POTS FOR USE IN TIN
WORKS."
My said Invention consists in improvements in the construction of annealing
pots for use in tin works, whereby the same are made stronger and more durable
than those constructed in the ordinary manner, whilst at the same time they are
considerably thinner, thus permitting the heating to be accomplished in a shorter
space of time and effecting a saving in the consumption of fuel.
In order to prevent the extreme contraction and expansion caused by the action
of heat from injuriously affecting the annealed pot, I cast the lid of the latter
separately from the case, and when desired to form the joint I do so by means of
fire clay, and bolt the lid to the case by any suitable number of bolts, which are
passed through lugs arranged (as shown in the Drawings) so as to permit of the
expansion and contraction; by these means the lid is secured in a perfectly air-
tight manner. The interior of the said lid is provided with a series of brackets or
ribs for the purpose of supporting the same and preventing it from cracking when
under the action of heat.
A band is placed or formed round the pot or case to prevent the same from
"buckling" and collapsing.
I will now proceed to refer to the accompanying Drawings, from which the
nature of my said Invention will be more clearly understood. The same letters of
reference indicate like parts in the several Figures. Figure 1 is a plan of an
annealing pot constructed in accordance with this Invention, and Figures 2 and 3
are respectively sections through the lines A, B, and C, D; in Figure 1, A, A is the
joint hereinbefore referred to, and B is the band placed or formed round the body
of the pot; C is the pot, and D is the lid.
The apparatus above described is, by preference, constructed of cast iron.
Having thus described and ascertained the nature of my said Invention, and the
manner in which it is to be performed, I would observe in conclusion that what I
consider novel and original, and therefore claim as constituting the Invention
secured to me by the said hereinbefore in part recited Letters Patent is,-
The construction and arrangement of annealing pots, substantially as and for the
purposes herein before described and set forth.
In witness whereof, I, the said Silas Williams, have hereunto set my hand
and seal, this Eighth day of February, in the year of our Lord One
thousand eight hundred and eighty one.

page_text: LETTERS PATENT to Silas Williams, of Llandaff, near Cardiff, in the County
of Glamorgan, for an Invention of "IMPROVEMENTS IN THE CONSTRUCTION
OF ANNEALING POTS FOR USE IN TIN WORKS."
PROVISIONAL SPECIFICATION left by the said Silas Williams at the Office
of the Commissioners of Patents on the 13th August 1880.
SILAS WILLIAMS, of Llandaff, near Cardiff, in the County of Glamorgan.
"IMPROVEMENTS IN THE CONSTRUCTION OF ANNEALING POTS FOR USE IN TIN
WORKS."
This Invention consists in improvements in the construction of annealing pots
for use in tin works, whereby the same are made stronger and more durable
than those constructed in the ordinary manner.
In order to prevent the extreme contraction and expansion caused by the action
of heat from injuriously affecting the annealing pot, I cast the lid of the latter
separately from the case, and when desired to form the joint I do so by means of
fire clay, and bolt the lid to the case by any suitable number of bolts, thereby
securing the two together in a perfectly air-tight manner.
The interior of the said
lid is provided with a series of brackets or ribs for the purpose of supporting the
same and preventing it from cracking when under the action of heat.
"
A band is placed round the pot or case to prevent the same from "buckling ” and
collapsing.
The apparatus above described is, by preference, constructed of cast iron.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Silas Williams in the Great Seal Patent Office on the 10th February
1881.
_SILAS WILLIAMS, of Llandaff, near Cardiff, in the County of Glamorgan.
"IMPROVEMENTS IN THE CONSTRUCTION OF ANNEALING POTS FOR USE IN TIN
WORKS."
My said Invention consists in improvements in the construction of annealing
pots for use in tin works, whereby the same are made stronger and more durable
than those constructed in the ordinary manner, whilst at the same time they are
considerably thinner, thus permitting the heating to be accomplished in a shorter
space of time and effecting a saving in the consumption of fuel.
In order to prevent the extreme contraction and expansion caused by the action
of heat from injuriously affecting the annealed pot, I cast the lid of the latter
separately from the case, and when desired to form the joint I do so by means of
fire clay, and bolt the lid to the case by any suitable number of bolts, which are
passed through lugs arranged (as shown in the Drawings) so as to permit of the
expansion and contraction; by these means the lid is secured in a perfectly air-
tight manner. The interior of the said lid is provided with a series of brackets or
ribs for the purpose of supporting the same and preventing it from cracking when
under the action of heat.
A band is placed or formed round the pot or case to prevent the same from
"buckling" and collapsing.
I will now proceed to refer to the accompanying Drawings, from which the
nature of my said Invention will be more clearly understood. The same letters of
reference indicate like parts in the several Figures. Figure 1 is a plan of an
annealing pot constructed in accordance with this Invention, and Figures 2 and 3
are respectively sections through the lines A, B, and C, D; in Figure 1, A, A is the
joint herein before referred to, and B is the band placed or formed round the body
of the pot; C is the pot, and D is the lid.
The apparatus above described is, by preference, constructed of cast iron.
Having thus described and ascertained the nature of my said Invention, and the
manner in which it is to be performed, I would observe in conclusion that what I
consider novel and original, and therefore claim as constituting the Invention
secured to me by the said hereinbefore in part recited Letters Patent is,-
The construction and arrangement of annealing pots, substantially as and for the
purposes hereinbefore described and set forth.
In witness whereof, I, the said Silas Williams, have hereunto set my hand
and scal, this Eighth day of February, in the year of our Lord One
thousand eight hundred and eighty one.