IMPROVEMENTS IN FURNACES FOR SMELTING AND CALCINING
Year: 1858

page_text: LETTERS PATENT to John Courage, of Horsleydown, in the County of
Surrey, Brewer, for the Invention of "IMPROVEMENTS IN FURNACES FOR
SMELTING AND CALCINING."
Sealed the 23rd November 1858, and dated the 25th May 1858.
PROVISIONAL SPECIFICATION left by the said John Courage at the
Office of the Commissioners of Patents, with his Petition, on the
25th May 1858.
I, JOHN COURAGE, of Horsleydown, in the County of Surrey, Brewer, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN FURNACES
FOR SMELTING AND CALCINING," to be as follows:-
My Invention consists in so constructing furnaces for smelting and caleining
as to be enabled to regulate and distribute the heat therefrom. I use a
hanging bridge perforated or not, and employ one or more dampers which can
be raised to or towards the lower surface of the hanging bridge, in order to
shut off entirely or partially the flame and products of combustion from
passing to the melting pots or materials to be calcined or smelted. I some-
times form a chamber, or chambers, or passages at the back or sides of the
fire in which the products of combustion enter, and from which they may be
distributed through apertures provided for the purpose.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Courage in the Great Seal Patent Office on the
25th November 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
COURAGE, of Horsleydown, in the County of Surrey, Brewer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of May, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said John Courage, Her special licence that I, the said John Courage, my
executors, administrators, and assigns, or such others as I, the said John
Courage, 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
FURNACES FOR SMELTING AND CALCINING,". upon the condition (amongst others)
that I, the said John Courage, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals, 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 John Courage, 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 state-
ment thereof, that is to say:-
My Invention consists in so constructing furnaces for smelting, reducing,
and calcining, as to be enabled to regulate and distribute the heat therein. I
use a hanging or other bridge, perforated or not, and employ one or more
dampers, which can be moved to or towards the hanging or other bridge, in
order to shut off entirely or partially the flame and products of combustion
from passing to the melting pots or materials to be calcined, reduced, or
smelted. The same object may also be effected by dispensing with the bridge
and employing dampers only, the use of which modification of my arrange-
inents, as well as of all other mere modifications of the same, I therefore
reserve to myself. I sometimes form a chamber or chambers or passages in
connection with the fire, into which chamber, chambers, or passages the

page_text: products of combustion enter, and from which they may be distributed through
an aperture or apertures provided for the purpose.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim,--
First, constructing furnaces for snielting, reducing, and calcining, with a
hanging or other bridge in combination with one or more dampers, which can
be moved to or towards the bridge, or with any mere modification of this
arrangement, in order to shut off entirely or partially the flame and products
of combustion from the melting pots or materials to be operated upon.
Secondly, constructing such furnaces with a chamber, chambers, or passages
in connection with the fire, into which chamber, chambers, or passages, the
products of combustion enter, and from which they may be distributed through
an aperture or apertures provided for the purpose.
In witness whereof, I, the said John Courage, have hereunto set my.
hand and seal, this Twenty-third day of November, One thousand
eight hundred and fifty-eight.
JOHN COURAGE. (L.S.)