Reek Dissipator for Improving Malt Kilns.
Year: 1890

page_text: Date of Application, 14th June, 1890
Complete Specification Left, 27th Jan., 1891-Accepted, 28th Mar., 1891
PROVISIONAL SPECIFICATION.
Reek Dissipator for Improving Malt Kilns.
HORACE WILLIAM JOYCE, Rose Cottage, 15, Middle Market Road, Great
Yarmouth, Norfolk, Maltster's Assistant, do hereby declare the nature of this
invention to be as follows :-
I have a metal or tile piping called the cold air pipe commencing at a wall so.
situated as to allow of a free current of ordinary air being obtainable. This pipe
leads to the interior of the kiln and is connected with an air chamber which is built.
into the archway of the furnace of the kiln. I then have another pipe which I
naine the hot air pipe lead from the same air chamber but at the opposite end to
that where the cold air pipe enters; this pipe leads upwards through the usual
heat "disperser " and the kiln floor to a height dependent on the dimensions of
the kiln.
A speciality of my invention is the arrangement of the outlet of the hot air pipe
which leads into the interior of the kiln. This arrangement is as follows: Say for
instance the hot air pipe is four inches in diameter, it maintains this size from
where it starts from the air chamber up to within two feet of the termination; from.
this point to finish it gradually widens out to eighteen inches in diameter. Inside
this mouth is suspended an arrangement the same shape as the mouth of hot air-
pipe but an inch smaller in diameter so that when it is placed there is left a space
of one inch all round the edge of the mouthpiece for the hot air to pass through
into the interior of the kiln, thus causing the hot air to issue in a circle of eighteen
inches diameter which spreads itself over the interior of the kiln and by this means
dissipates "the "reck" or steam" arising from the green malt and carries the
"reek" or ::
steam" off the kiln at the usual opening in the top.
66
"
The air chamber is built of brick and iron &c. having an iron plate fixed in the
bottom, just beneath the entrance of cold air pipe, so that the cold air entering
the air chamber through this pipe must pass over the plate, this plate being
exposed to the full action of the fire most rapidly heats the contents of the
air chamber.
The shape of the air chamber is conical and the dimensions depend on the size of
the kiln, the depth gradually lessens towards smaller end. The cold air enters at the
largest end and the hot air passes out at the smaller end.
7th day of July 1890
HORACE WILLIAM JOYCE.
COMPLETE SPECIFICATION.
Reek Dissipator for Improving Malt Kilns.
1, HORACE WILLIAM JOYCE, of Rose Cottage, Great Yarmouth, in the County
of Norfolk, Maltster, 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 :-
My invention relates to improvements in the means for dissipating the reck
arising from green malt in malt kilns for which purpose I employ an arrangement
substantially as set forth in the accompanying sheet of drawings which are to be
taken as part of this specification and read therewith.
Fig. is a cross sectional elevation of a malt kiln fitted with my improved
dissipator.
Wi
• iz on oulanend coctional alevation of improved discharœe cone.

page_text: Fig. 3 is an elevation of modified form of hot air chamber.
Like letters of reference denote corresponding parts in each view.
I arrange a cold air pipe A which commences at the outer wall of the kiln M
and from the outer part of wall inwards it preferably extends in a conical form
until it arrives at the valve C which is fitted in said pipe A in order that the
supply of cold or cool atmospheric air to the air heating chamber D may be
regulated as required. The said chamber D is situated within the ordinary
furnace F and is supported therein upon an armed ring G the arms of which are
carried upon suitable racks H by which means the said air heating chamber D may
be adjusted vertically or placed so as to be supported at the desired distance above
the fire J.
I arrange a hot air pipe K to lead vertically from the chamber D up through
the usual heat disperser and floor of kiln M and the end of said pipe K
which leads into the interior of the kiln I especially arrange as follows: Say for
instance the pipe K be four inches diameter continue this size upwards to within
about two feet above the kiln floors m¹ then the said pipe K gradually widens out
to about eighteen inches diameter thus forming the mouth shown at Fig. 1 inside
or over which is supported an arrangement which is a similar shape on its lower
side to the interior of said mouth but two inches or thereabouts smaller thereby
leaving a space of about one inch all round the edge of the mouth piece for the
heated air to pass from the pipe K into the kiln M so that the heated atmospheric
air spreads itself all round over the interior of the kiln M and by this means
dissipates the reek or steam arising from the green malt O and carries it off the
kiln M through the opening P at the top thereof.
The air heating chamber is especially made in the conical shape shown as I find
this shape to tend to more quickly conduct the heat to the air and so to secure the
necessary current up the pipe K at the required temperature.
Where desired the air heating chamber D may be arranged so that a cold air
supply pipe A is connected thereto at either side as shown at Fig. 3. By the use
of my hereinbefore described arrangement the heated air for the dissipation of the
reek may be regulated as desired in both supply and temperature and a perfectly
pure heated atmosphere may be used inasmuch as the said air is kept distinct
from that which ascends through the floor of the kiln in the ordinary way thus in
my invention the reek is dissipated in a very efficient speedy and economical
manner.
I would have it understood that I do not claim per se the use of a vertical pipe
merely extending from the heat-disperser L through the floor M to above the malt
for the purpose of conducting some of the heated air which would otherwise pass
through the floor of the kiln in the ordinary manner but
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. A reek dissipator for malt kilns arranged with one or more pipes A. conducting
atmospheric air through the outer walls of kiln M to the air heating chamber D
and subsequently delivering the same in a heated state out of the specially con-
structed discharge end of the pipe K all combined and arranged substantially as
described and illustrated.
L
Lamu 1801
H. F. BOUGHTON, M.I. Mech. E.,
London, Sheffield, and Barnsley, Agent.