Improvements in Cement Kilns.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cement Kilns.
JOHN CLARKE, Artillery Cement Works, Greenhithe, Kent, Cement Works
Manager, JOHN JAMES HEWITT, Stone Court, Greenhithe, Kent, Chalk Quarries
Manager, THOMAS GEORGE STEVENS, 5, Cobham Terrace, Greenhithe, Kent,
Engineer, do hereby declare the nature of this invention to be as follows:-
This new design of kiln is designed for the purpose of giving a better advantage
in the burning of cement and the like. It is so arranged that the whole space
at the bottom of the kiln is covered with fire-bars-by this means we get an equal
burning. So as to obtain an equal draught over the whole surface we make two sepa-
rate openings at either side of the kiln-eye. These openings act to supply draught
to the sides. In order to make the kiln more easier to draw when burned off,
the kiln is built upon a concrete block, and the fire-bars are kept about two feet
above the surface, so by moving a few fire-bars, the clinker will fall upon the
surface below, from where it can be easily removed. The flues leading from the
kiln we make in large numbers, so that narrow plates can be used which are not
so likely to buckle or get out of shape. It also has the advantage of the heat being
practically spent before entering the main flue or shaft.
Dated this 20th day of January 1000
J. CLARKE.
JOHN JAMES HEWITT.
T. G. STEVENS
mprovements in Cement Kilns.
JOHN CLARKE, Artillery Cement Works, Greenhithe, Kent, Cement Works
Manager, JOHN JAMES HEWITT, Stone Court, Greenhithe, Kent, Chalk Quarries
Manager, THOMAS GEORGE STEVENS, 5, Cobham Terrace, Greenhithe, Kent,
Engineer, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement; -
This new design of kiln is designed for the purpose of giving a better advantage
in the burning of cement and the like. It is so arranged that the whole space
at the bottom of the kiln is covered with fire-bars-by this means we get an equal
burning.
So as to obtain an equal draught over the whole surface we make two separate
openings at either side of the kiln eye. These openings act to supply draught
077

page_text: to the sides. In order to make the kiln more easy to draw when burned off,
the kiln is built upon a concrete block, and the fire-bars are kept about two feet
above the surface, so that by moving a few fire bars, the clinker will fall upon
the surface below from where it can be easily removed. The flues from the kiln
we make in large numbers so that narrow plates can be used which are not so
likely to buckle or get out of shape.
It also has the advantage of the heat being practically spent before entering the
main flue or shaft.
In order to make our invention more clearly understood we annex the following
drawings.
Figure 1 is side section.
Figure 2 is plan of kiln and floor.
Figure 3 is front view.
A is the kiln
B is the main flue.
C is the drying floor.
D is a series of flues.
E is the fire bars.
F is the main eye.
GG are the small draught eyes.
H is the small loading eye.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
1. The use of two or more extra draught eyes to allow of an equal draught over
the whole surface bottom of the kiln.
2. The use of more flues, and plates to save buckling.