IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES, POTTERY AND OTHER KILNS."
Year: 1881

page_text: LETTERS PATENT to George Eyre, of Codnor, in the County of Derby, for
an Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES,
POTTERY AND OTHER KILNS."
PROVISIONAL SPECIFICATION left by the said George Eyre at the Office
of the Commissioners of Patents on the 4th October 1881.
"IMPROVEMENTS IN THE
GEORGE EYRE, of Codnor, in the County of Derby.
CONSTRUCTION OF FURNACES, POTTERY AND OTHER KILNS."
My Invention consists in improvements in the construction of furnaces, heating
apparatus, pottery and other kilns, or like arrangements for heating purposes, such
arrangements being applicable for consumption of smoke, and further by my
Invention the sides of the furnaces, stoves, etc., are preserved.
In carrying out my Invention I adopt mainly the following arrangements,
taking as example a pottery kiln of oblong shape :-
=
In each wall or lining of the fire box or furnace I form grooves or openings,
which are preferably narrow in the opening to the fire, widening preferably as
they recede into the body of the wall or lining of the fire box or furnace. These
grooves or openings rise to a certain height in the furnace opening into same.
The lower ends of these grooves or openings communicate with the ash pit under
the fire bars.
To regulate the admission of air to the fire box or furnace the grooves or
openings may be closed to any required height or extent by means of a slide or
slides actuated by lever or levers, which partially open or close the said openings
or grooves, so as to allow the air rising through the grooves or openings to act on
the fire, as may be required. A chain or chains or other suitable means may be
employed for raising and lowering the slide or slides, as above described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Eyre in the Great Seal Patent Office on the 4th April
1882.
GEORGE EYRE, of Codnor, in the County of Derby. "IMPROVEMENTS IN THE
CONSTRUCTION OF FURNACES, POTTERY AND OTHER KILNS."
My Invention consists in the improvements in the construction of furnaces,
beating apparatus, pottery and other kilns, or like arrangeinonts for heating
purposes, such arrangements being applicable for consumption of smoke, and
further by my Invention the sides of the furnaces, stoves, etc., are preserved.
Having thus far. described the nature of the said Invention, I will now proceed
by reference to the accompanying Drawings to particularly describe and ascertain
in what manner the same is to be performed or carried out in practice.
Fig. 0, pian of Turnace or nue with my improvements applied thereto.
Fig. 7, transverse side view of Fig. 6.
Fig. 8, plan showing arrangements applied to vertical boilers.
Fig. 9, section on line G, H.
Fig. 10, elevation of air channel and plate.
In Figs. 1, 2, and 3 the arrangements show my Invention as applied to a pottery
kiln of oblong shape. In each wall or lining A of the fire box or furnace I form
grooves or openings C, which are preferably narrow in the opening B to the fire,
widening as they recede into the body of wall or lining of the fire box or furnace,
as shown at C. These grooves or openings C rise to a certain height in the
furnace D, opening into same. The lower ends of these grooves or openings com-
municate with the ash pit E under the fire-bars F. To regulate the admission of
air to the fire-box or furnace the grooves or openings may be closed to any required
height or extent by means of a slide or slides actuated by lever or levers, which
partially open or close the said openings or grooves, so as to allow the air rising
through the grooves or openings to act on the fire, as may be required.
A chain or chains or other suitable means may be employed for raising and
lowering the slide or slides, as above described.
In Figs. 5, 6, and 7 the arrangements shown are as applied to Cornish or
longitudinal boilers. To the sides of the flue or furnace air grooves or
openings are applied. The grooves or openings can be supported on a bearer
running the length of the furnace or flue. These openings or grooves are pre-
ferably of the formn shown, narrow to the fire, widening as they recede, as shown
in plan, Fig. 6.
These air openings may be of any number, as required.
In Figs. 8, 9, and 10 iny Invention is shown as applied to a vertical boiler.
In this case the only alteration to that shown in Fig. 5 is that the air channels
rest on sockets H, forming part of the fire bars.
In place of grooves or openings, as shown, slots or small openings at intervals
may be employed.

page_text: Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed or carried out in
practice, I hereby declare that I claim the Invention of "Improvements in the
Construction of Furnaces, Pottery and other Kilns," substantially as hereinbefore
set forth and described, whereby smoke is consumed, and the efficiency of the kiln
or furnace is increased by the introduction of air, substantially as and for the
purposes herein before described.
In witness whereof, I, the said George Eyre, have hereunto set my hand
and seal, this Thirtieth day of March, in the year of our Lord One
thousand eight hundred and eighty two.
GEORGE EYRE. (L.S.)