TUPROVEMENTS IN THE MANUFACTURE OF RETORTS AND ANNEALING POTS AND
Year: 1871

page_text: LETTERS PATENT to Richard Nevill, of Wern Iron Works, Llanelly,
in the County of Carmarthen, South Wales, for the Invention of
" TUPROVEMENTS
IN THE MANUFACTURE OF RETORTS AND ANNEALING POTS AND
PROVISIONAL SPECIFICATION left by the said Richard Nevill at the
Office of the Commissioners of Patents, with his Petition, on the
1st February 1871.
I, RICHARD NEVILL, of Wern Iron Works, Llanelly, in the County of
Carmarthen, South Wales, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE MANUFACTURE OF RETORTS AND ANNEALING
POTS AND STANDS," to be as follows:-
The Invention has for its object improvements in the manufacture of
retorts and annealing pots and stands.
Hitherto such articles have been manufactured by casting them in
suitable moulds, or they have been made of wrought iron, bent to the
required shape, and then rivetted at the seams.

page_text: Now by casting such articles they were made of great weight, and
were liable to fracture by blows or by sudden changes of temperature,
and in consequence of their weight they were difficult to move, whilst
by forming them of wrought iron rivetted into shape they were quickly
rendered unserviceable in consequence of the oxidation of the rivets, by
which the rivets soon become loose, and air was thereby enabled to pass
readily through the rivet holes.
The present Invention consists in forming such articles of wrought
iron welded into the desired forms, whereby lightness, efficiency, and
durability are obtained.
The mode which I have found to answer in making retorts and
annealing pots consist in taking a plate of iron sufficiently long to pass.
around the sides of the article, and so as to meet at one corner, where
the ends may overlap, or where they may leave an angular space, into
which I introduce, if necessary, a strip of iron. I then heat the parts
and weld them together so as to produce a tube open at both ends. I
then take a plate of iron formed to the shape required to form the end
or top, and to overlap the end of the tube. The parts are then heated
and welded together, so as in effect to make the retort or annealing pot
of one continuous piece of wrought iron.
For stands for annealing pots I proceed in a somewhat similar manner
to that before described, and I fix studs or feet thereto by welding; or
if desired, such stands may be formed by hammering them in suitable
dies or swages.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Richard Nevill in the Great Seal Patent Office
on the 31st July 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
NEVILL, of Wern Iron Works, Llannelly, in the County of Carmarthen,
South Wales, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her
Letters Patent, bearing date the First day of February, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give

page_text: and grant unto me, the said Richard Nevill, Her special licence, that I,
the said Richard Nevill, my executors, administrators, and assigns, or
such others as I, the said Richard Nevill, 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 "IMPROVEMENTS IN THE MANUFACTURE
OF RETORTS AND ANNEALING POTS AND STANDS," upon the condition (amongst
others) that I, the said Richard Nevill, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands
and scals, 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 Richard Nevill, do hereby declare
the nature of my said Invention, and in what manner the same is to he
performed, to be particularly described and ascertained in and by the
following statement, that is to say :—
The Invention has for its object improvements in the manufacture of
retorts and annealing pots and stands.
Hitherto such articles have been manufactured by casting them in
suitable moulds, or they have been made of wrought iron bent to the
required shape, and then rivetted at the seams.
Now by casting such articles they were made of great weight, and
were liable to fracture by blows or by sudden changes of temperature,
and in consequence of their weight they were difficult to move, whilst
by forming them of wrought iron rivetted into shape they were quickly
rendered unserviceable in consequence of the oxidation of the rivets, by.
which the rivets soon became loose, and air was thereby enabled to pass
readily through the rivet holes.
The present Invention consists in forming such articles. of wrought
iron welded into the desired forms, whereby lightness, efficiency, and
durability are obtained.
The mode which I have found to answer in making retorts and
annealing pots consists in taking a plate of iron sufficiently long to pass.

page_text: Having thus described the nature of my said Invention, and the mode
which I have found to answer in carrying the same into effect, I would
have it understood that I do not confine myself to the precise details
herein shown and described; but what I do claim is, the manufacture
of retorts and annealing pots and stands by welding, substantially as
herein described, instead of as heretofore making them by casting or by
rivetting the parts together.
In witness whereof, I, the said Richard Nevill, have hereunto set
my hand and seal, this Tenth day of July, in the year of our
Lord One thousand eight hundred and seventy-one.
RICHARD NEVILL. (L.S.)