Improvements in Furnaces and Kilns.
Year: 1895

page_text: Gate of Application, 10th Apr., 1895,
Complete Specification Left 9th Nov. 1895-Accented 14th Dec. 1890
Date of Application, 10m Apt., 1090
Complete Specification Left 9th Nov.
1895-Accented 14th Dec. 1890
PROVISIONAL SPECIFICATION.
Improvements in Furnaces and Kilns.
We, PHILIP KIRKUP, Mining Engineer, and JACOB HODGSON, Mechanical Engineer,
both of the Cornsay Colliery near Durham, in the County of Durham, do hereby
declare the nature of our said invention to be as follows
Our invention relates more particularly to kilns such as are employed in the
manufacture of bricks, drain pipes and the like articles and the object of our invention
is to economise the fuel used in the furnaces for heating such kilns.
We effect this object by an improved arrangement of air passages and ports con-
structed in the walls of the kiln in combination with an air heating chamber or
chambers constructed over or near the top and sides of the said furnaces so that the
air required either in primary or secondary combustion or both may be heated to a
high temperature.
The passages in the walls of the kiln we arrange to traverse from the lower part of
the kiln where suitable inlets are formed for the admission of the outer air, thence in
and around the body of the kiln to the air chamber or chambers over or near the top
and sides of the furnace, and thence through suitable ports or outlets formed at the
back of the furnace where the heated air is discharged and brought into contact and
mixed with the gases distilled from the fire grate. In some cases we admit the heated
air below or above the grate bars in the furnace.
We also provide suitable doors or valves to regulate the admission of the outer air
and likewise valves or dampers by means of which the discharge of the heated air
may be directed and regulated either for the support of primary or secondary com-
bustion, or both as desired.
We are aware that various methods of heating air for analogous purposes have
been employed and we lay no claim to novelty in this respect, the essential feature of
our invention being in the particular arrangement of air passages in combination with
an air chamber or air chambers as herein described.
Dated this 10th dov at Annil 1905
R. HEBER RADEord,
Agent for the Applicants.
Improvements in Furnaces and Kilns.
We, PHILIP KIRKUP, Mining Engineer, and JACOB HODGSON, Mechanical Engineer,
both of the Cornsay Colliery, near Durham, in the County of Durham, do hereby
declare the nature of our said invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
Our invention relates more particularly to kilns such as are employed in the
manufacture of bricks, drain pipes and the like articles and the object of our invention
is to economise the fuel used in the furnaces for heating such kilns.
We effect this object by an improved arrangement of air passages and ports con-
structed in the walls of the kiln in combination with an air heating chamber or

page_text: chambers constructed over or near the top and sides of the said furnaces so that the
air required either in primary or secondary combustion or both may be heated to high
temperature.
The nature of our invention will be better understood on reference to the
accompanying sheet of drawings, in which,
Fig. 1, is a front elevation partly in section of a brick kiln provided with our
improved furnaces shewing the arrangement of air passages and air chambers. The
section being taken on the line C. D. Figs. 2 and 3.
Fig. 2, is a longitudinal section of the same, taken on the line A. B. Fig. 1.
Fig. 3, is a plan also in section taken on the line E. F. Fig. 1.
The same letters refer to similar parts throughout the several views.
The passages a, in the walls of the kiln we arrange to traverse from the lower part
of the kiln where suitable inlets b, are formed for the admission of the outer air,
thence in and around the body of the kiln to the air chamber or chambers c, over or
near the top and sides of the furnace d, and thence through suitable ports or outlets e, e,
formed at the back of the furnace where the heated air is discharged and brought into
contact and mixed with the gases distilled from the fire grate. In some cases we
admit the heated air below or above the grate bars f, in the furnace d, in which case
the air passages c', would be formed leading to the port el, above the fire bars, or to
the port e below the fire bars.
We also provided suitable doors or valves g, to regulate the admission of the outer
air and likewise valves or dampers h', h2, h3, by means of which the discharge of the
heated air may be directed and regulated either for the support of primary or
secondary combustion or both as desired.
We are aware that various methods of heating air for analogous purposes have
been employed and we lay no claim to novelty in this respect, the essential feature of
our invention being in the particular arrangement of air passages in combination with
an air chamber or chambers as herein described.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed, we declare that what we
claim is.
1. In furnaces and kilns such as are employed in the manufacture of bricks, drain
pipes and the like articles, the arrangement of air passages and ports constructed in the
walls of the furnaces and kilns, in combination with an air heating chamber or
chambers constructed over or near the top and sides of the said furnaces and kilns, so
that the air required either in primary or secondary combustion or both may be heated
to a high temperature, in the manner and for the purposes substantially as herein
described and illustrated.
Dated this 8th day of November 1895.
R. HEBER RADFORD,
Agent for the Applicants.