Improvements in Kilns for Drying Malt, Hops, Grain, and other like Produce.
Year: 1895

page_text: Date of Application, 15th May, 1895-Accepted, 22nd June, 1895
COMPLETE SPECIFICATION.
Improvements in Kilns for Drying Malt, Hops, Grain, and other
like Produce.
I, HENRY WATSON, of Bally roun House, Rathfarnham, County Dublin,
Ireland, Practicnl Maltster, do hereby declare the nature of this invention and
in what manner the same 18 to be performed, to he particularly described and
ascertained in and by the following statement
1
This invention has reference to improvements in kilns for drying malt, hops,
gram, and other like produce, whereby the process of drying may be carried on in
a more economical and effectual manner than mither to so far as I am aware.
The invention is equally applicable to single and double floor kilns and serves to
effectually expel the sun plus steam which has hitherto been found to mateually
interfere with the successful operation of double kilns
The nature of the said invention and the manner in which the same is to be
performed is as follows, reference being had to the accompanying diawings in
which
Fig. 1, represents a vertical section of a diying kiln of well-known construction
so far as the central furnace a, the hot air chamber b, and the two drying
floors and care concerned, and shewing the application of my invention as
presently described.
Fig. 2, is a plan of the hot an chamber, and
Fig. 3, 1s a detail view of the peculiarly constructed furnace which forms part
of my invention
The said furnace d, consists of a ine-grate having the outlet to its flues connected
with a dome e, which dome is double, or jacketed so as to provide an au space f
between its inner and outer shell.
From this dome concentric branch pipes 9, 9, and pp, emerge (the inner pipe
springing from the mer shell of the dome, and the outer pipe from the outer
shell), and are conducted horizontally around the kiln terminating at h and k, with
bends eng vertically through the floors and c', and discharging at 7.
r
At each angle a riser pipe m, is provided terminating also at 1, and all the
vertical pipes are provided with suitable covers at top for regulating the discharge
of an.
The outer conceutic pipes are provided at suitable intervals throughout with
openings to allow of tho escape of heated an to the chamber b, and flours c
and c'.
In connection with the furnace three flues, are provided, which communicate
with the external an allowing same to enter into the jacket of the dome, thence
through the annular space between the two concentric pipes, and through the
openings in the outer pipe into the air chamber and floors as described
It is obvious that the duect heated an from the furnace passes through the inner
concentric pipes and escapes at the top of the user pipes, heating as it passes
through the system, the air circulating through the annulat space between the two
pipes and diving off the accumulated vapour in the cupola of the kilu.
Another feature of my invention relates to the constinction of the final outlet at
the top of the cupola
Instead of using an indefinite number of louvre boards as is the case at present
I use ouly a single board &, on each of the four sides of the outlet.

page_text: This arrangement is shewn in Fig. 1. Portion of each board protides uside
the escape flue and portion over bangs the roof so that the wind striking the roof on
any Fide is caused to sweep in an upward direction, creating a swift curient which
effectually carries off the vapour as shewn by the arrows
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I would have it understood
that what I claim is
-
First In kilne for drying malt, hops, grain, and other like produce, the con-
struction and arrangement of a furnace d, in combination with a hot an dome e.
and concentric pipes enculating through hot an chamber, and floors c aud c¹,
whereby heat is effectually and efficiently distibuted, and a thorough draught
created which dispels the vapou from the top space or cupola substantially as
herein specified and set forth.
Second. In kilns for drying malt, hops, grain, and other like produce, the use
and application of louvie boards at the final outlet or discharge, in the manner and
for the purpose substantially as described.
1005
J. K FAHIE & SON,
9 Westland Row, Dublm, Agents for Applicant
J. K FAHIE & SON,
9 Westland Row, Dublm, Agents for Applicant