IMPROVEMENTS IN REVERBERATORY AND OTHER FURNACES
Year: 1868

page_text: LETTERS PATENT to John Heaton, of Langley Mill, in the County of
Derby, Consulting Engineer, for the Invention of "IMPROVEMENTS
IN REVERBERATORY AND OTHER FURNACES."
Sealed the 28th October 1868, and dated the 2nd May 1868.
PROVISIONAL SPECIFICATION left by the said John Heaton at the
Office of the Commissioners of Patents, with his Petition, on the
2nd May 1868.
I, JOHN HEATON, of Langley Mill, in the County of Derby,
Consulting Engineer, do hereby declare the nature of the said Inven-.
tion for "IMPROVEMENTS IN REVERBERATORY AND OTHER FURNACES," to be as:
follows:-
According to these improvements there are combined under one
roof or arch a fire-place, a combustion chamber, a chamber for, say,
coke and limestone, and the body of the furnace or chamber for the
metal to be operated upon. The fire-place is separated from the
combustion chamber by a bridge. The combustion chamber is separated
from the chamber for the, say, coke and limestone, by a perforated
bridge, and the roof or upper part of the arch is somewhat depressed

page_text: over the body of the furnace. The heat from the fire after traversing
over these several compartments passes away to a flue or stack. There
are air passages capable of being closed or regulated from the ash-pit or
otherwise opening through the floor of the combustion chamber, and air is
also admitted through an adjustable opening or openings into the upper
part of the combustion chamber. The ash-hole under the coke and
limestone chamber may be closed by doors or otherwise. By these
means a high heat with consumption of smoke is obtained. By using
the chamber referred to as the coke and limestone chamber as a gas'
generator the furnace is applicable to various purposes in iron works,
and this arrangement may be applied to almost any furnace for the
consumption of smoke or generating of great heat.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Heaton in the Great Seal Patent Office on
the 31st October 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HEATON, of Langley Mill, in the County of Derby, Consulting Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of May, in the year
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Heaton, Her special licence that I,
the said John Heaton, my executors, administrators, and assigns, or
such others as I, the said John Heaton, 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 REVERBERATORY AND OTHER
FURNACES," upon the condition (amongst others) that I, the said John
Heaton, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the

page_text: 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 Heaton, do hereby declare
the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
According to these improvements there are combined under one roof
or arch a fire-place, a combustion chamber, a chamber for coke, and the
body of the furnace or chamber for the metal to be operated upon. The
fire-place is separated from the combustion chamber by a bridge. The
combustion chamber is separated from the chamber containing the coke
by a perforated bridge, and the roof or upper part of the arch is some-
what depressed over the hearth of the furnace. The heat from the fire,
after traversing over these three several compartments, passes away to
a flue or stack. The damper for regulating the draft of air is placed
at the fire-grate end of the furnace. Air passages are provided leading
from the ash-pit or from the exterior of the furnace into the lower
portion of the combustion chamber, which passages are provided with
regulating dampers. Air is also admitted through one or more
adjustable openings into the upper part of the combustion chamber..
The ash-hole under the chamber containing the coke may be closed
by doors or otherwise. By these means a very high temperature will
be obtained and the production of smoke prevented. By employing the
coke chamber referred to the excess of hydrogen which has entered the
combustion chamber is taken up on passing over the body of coke
contained in the coke chamber, which being at a high heat its carbon
combines with the oxygen. This furnace or modifications thereof may
be applied to various other purposes where an elevated temperature and
the prevention of smoke are required.
And in order that my Invention may be fully understood, I will by
the aid of the accompanying Drawings proceed to describe the manner
in which I came the same into effect

page_text: A is the coal fire-place; B, the combustion chamber; C, the chamber
supplied with coke; D, the hearth of the furnace; E, the passage from
the furnace to a chimney or stack; F, F, are openings through the
bridge of the furnace for passage of the flame; G is the passage for
air into the combustion chamber; H is an air damper to close the air
passage G if required; I is the charge hole for the coal fire-place;
J indicates a passage through which air passes into the upper portion
of the combustion chamber, which passage is closed by a sliding door
as shown; K is a charge hole for the supply of the coke; L, L, are
doors closing the ash-pit of the coke chamber when in use; M is the
damper for regulating the draft of air through the fire-grate of the
furnace A.
Having now described my Invention and 'the means which may be
adopted for carrying the same into effect, I would observe in conclusion
that what I consider to be novel and original, and therefore claim as
the Invention secured to me by the herein-before in part recited Letters
Patent is,-
First. The general construction, arrangement, and combination of
furnaces, substantially as and for the purposes herein-before described.
Second. The combination of the fire-place or furnace A, the
combustion chamber B with its air inlets, and the coke chamber C in
conjunction or not with the hearth D, substantially as and for the
purposes herein-before described and illustrated by my Drawings.
In witness whereof, I, the said John Heaton, have hereunto set
my hand and seal, this Twenty-eighth day of October, in the
year of our Lord One thousand eight hundred and sixty-eight.
JOHN HEATON. (L.S.)