IMPROVEMENTS IN THE ARRANGEMENT AND CONSTRUCTION OF PUDDLING AND HEATING FURNACES EMPLOYED IN THE MANUFACTURE OF IRON AND STEEL
Year: 1861

page_text: LETTERS PATENT to William Corbett, of Clayton, near Manchester, in
the County of Lancaster, Iron and Steel Manufacturer, for the Invention
of "IMPROVEMENTS IN THE ARRANGEMENT AND CONSTRUCTION OF PUDDLING
AND HEATING FURNACES EMPLOYED IN THE MANUFACTURE OF IRON AND
STEEL."
Sealed the 9th August 1861, and dated the 12th February 1861.
PROVISIONAL SPECIFICATION left by the said William Corbett at the
Office of the Commissioners of Patents, with his Petition, on the 12th
February 1861.
I, WILLIAM CORBETT, of Clayton, near Manchester, in the County of
Lancaster, Iron and Steel Manufacturer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN THE ARRANGEMENT AND CONSTRUCTION OF
PUDDLING AND HEATING FURNACES EMPLOYED IN THE MANUFACTURE OF IRON AND
STEEL," to be as follows:-
The object of this Invention is to provide means by which the products
of combustion of the fuel employed in puddling and heating furnaces used in
the manufacture of iron and steel may when required be wholly or partly
removed without passing over or coming in contact with the metal under
process of manufacture; and the Invention consists in providing an additional
chimney or outlet from each furnace, over and above or a little beyond the
partition which separates that part of the furnace containing the grate bars from
the "hearth" containing the metal, and in providing the top of this said

page_text: additional chimney or outlet, as well as the ordinary chimney of such furnaces
with a damper or cover, by which either or both of the said chimneys may
be wholly or partly closed when required, and thus when the ordinary chimney
is closed, and the said additional chimney or outlet is open, the products of
combustion will pass directly up the said additional chimney or outlet without
passing over or coming in contact with the metal on the "hearth.".
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Corbett in the Great Seal Patent Office on the
10th August 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CORBETT, of Clayton, near Manchester, in the County of Lancaster, Iron and
Steel Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twelfth day of February, in the year of our Lord One
thousand eight hundred and sixty-one, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, tho
said William Corbett, Her special licence that I, the said William Corbett,
my executors, administrators, and assigns, or such others as I, the said William
Corbett, 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 ARRANGE
MENT AND CONSTRUCTION OF PUDDLING AND HEATING FURNACES EMPLOYED IN THE
MANUFACTURE OF IRON AND STEEL," upon the condition (amongst others) that I,
the said William Corbett, by an instrument in writing under my hand and
seal, 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 William Corbett, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement and accompanying Drawings (that is to say):-
"The object of my Invention is to provide means by which the gaseous and
other products arising from the combustion of the fuel used in puddling and

page_text: heating furnaces, employed in the manufacture of iron and steel, may when
required be wholly or partly removed without passing over or coming in
contact with the metal under process of manufacture; and my Invention
consists in providing and additional chimney or outlet from each furnace over
or above, or a little beyond the partition which separates that part of the
furnace containing the grate bars from the "hearth" containing the metal,
and in providing the top of the said additional chimney or outlet, as well as
the ordinary chimney of such furnaces, with a damper or cover, by which
either or both of the said chimneys may be wholly or partly closed when
required, and thus when the ordinary chimney is closed, and the said additional
chimney or outlet is open, the products of combustion will pass directly up
the said additional chimney or outlet without passing over or coming in
contact with the metal on the hearth.
Fig. 1 of the accompanying Drawing shews a plan sectional view; Fig. 2
a cross sectional elevation, and Fig. 3 a longitudinal sectional elevation of the
ordinary puddling or heating furnace with my improvements applied.
a, the grate bars for the fuel; 6 the partition or bridge between the grate
part of the furnace and the metal hearth c; d the ordinary flue leading to the
chimney which is supplied with a damper or cover. My improvements
consists in applying the additional chimney e, the top of which is supplied
with a cover or damper f.
To carry out my Invention it is not essential that the flue should rise
vertically from an outlet over the bridge, it may pass into a flue horizontally
and then to a chimney, and one chimney may be used for both outlets, so that
both flues leading to the same chimney are provided with dampers arranged
so that one can be open when the other is closed.
I have now particularly described the nature of my Invention and the
mode of carrying the same into effect, and claim as my Invention the arrange-
ment and construction of puddling and heating furnaces for the manufacture
of iron and steel substantially as herein-before described.
In witness whereof, I, the said William Corbett, have hereunto set my
hand and seal, this Ninth day of August, in the year of our Lord One
thousand eight hundred and sixty-one.
WILLIAM CORBETT. (L.S.)