IMPROVEMENTS IN DRYING MALT
Year: 1853

page_text: LETTERS PATENT to William Walker, of Park Malt Kilns, 55,
Marlborough Street, Leeds, in the County of York, for the Inven-
tion of "IMPROVEMENTS IN DRYING MALT."
Sealed the 31st May 1853, and dated the 4th April 1853.
PROVISIONAL SPECIFICATION left by the said William Walker
at the Office of the Commissioners of Patents, with his Petition,
on the 4th April 1853.
I, WILLIAM WALKER, of Park Malt Kilns, 55, Marlborough Street,
Leeds, in the County of York, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN DRYING MALT" to be as follows:-
The Invention consists of constructing an oven under the kiln,
within which is a fire place suitable to burn coal to heat the oven.
Between the fire and the roof of the oven, metal or other flues or tubes
are placed to be heated, thro' which air is passed from the atmosphere
to the drying kiln. When wanted to dry with as little fire as possible,
and pure air not required, the fire-doors are left open, and the dampers
closed, which lets the air from the oven pass to the drying kiln. Air is
also passed over the oven to the kiln. Cold air passages are also used
for reducing and regulating the temperature.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said William Walker, in the Great Seal Patent Office,
on the 4th October 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
WILLIAM WALKER, of Park Malt Kilns, 55, Marlborough Street,
Leeds, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of April, in the year of our
Lord One thousand eight hundred and fifty-three, in the sixteenth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said William Walker, Her special licence that I, the said
William Walker, my executors, administrators, and assigns, or such
others as I, the said William Walker, my executors,-administrators,
and assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN DRYING MALT,"
upon the condition (amongst others) that I, the said William Walker,
by an instrument in writing under my hand and seal, should particu-
larly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Walker, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement thereof (that is to say):
The Invention consists of constructing an oven under the kiln, within
which is a fire place suitable to burn coal to heat the oven. Between
the fire and the roof of the oven metal or other flues or tubes are placed
to be heated, through which air is passed from the atmosphere to the
drying kiln. When wanted to dry with as little fire as possible, and
pure air not required, the fire doors are left open, and the dampers

page_text: closed, which lets the air from the oven pass to the drying kiln. Air is
also passed over the oven to the kiln. Cold air passages are also used
for reducing and regulating the temperature.
Having thus stated the nature of the said Invention, I will proceed
to describe the manner of performing the same.
;
DESCRIPTION OF THE DRAWINGS.
Figure 1, is a horizontal plan in section, taken across the furnace
above the fire bars. Figure 2, is a horizontal section taken at 1,1, in
Figure 3. Figure 3, is a vertical section taken from front to
back and Figure 4, is a vertical section taken from side to side of
the furnace, and heating apparatus. In each of these figures
the same letters are used to indicate similar parts. a, a, is the
floor of a malt kiln, which consists of perforated tiles, and it is
supported by bearers of angle iron, the ends of which are built into
the walls. b, b, are the fire bars of the fire place. The products of
combustion usually passed down from the heated chamber c, c, formed
above the fire through flues or passages d, d, into the chimney e, as indi-
cated by the arrows; and thus are heated not only the chamber c, c, and
the air pipes passing through it, but also the lower parts of the build-
ing; and the passage away of the products of combustion into such flues
or passages is regulated by the slides or valves f. f. Ordinarily the pro-
ducts of combustion do not pass through the floor of the kiln, but they
may do so, if desired, by opening the slide or valve g, at the upper part
of the chamber c, as will readily be understood on examining the draw-
ings. Across the chamber c, from front to back, are applied a series of
pipes or tubes h, h, through which air passes and becomes heated, and
then rises upwards, and passes through the floor of the malt kiln.
Hence it will be seen that the products of combustion are ordinarily
kept from the malt, whilst the heated air only passes to the malt kiln,
by which means the impurities of the products of combustion are kept
from the malt, and the pure, clean, heated air is only used; but, if
desired, the heated products of combustion may also be allowed to pass
with the beated air. I, however, prefer to keep these matters separate.
i, i, are openings for the passage away of the vapours from the malt,

page_text: such openings entering into chimneys j, j, as shown. k, k, are passages
for admitting cold air for adjusting the temperature of the air.
I would remark that although I have been particular in describing
the exact arrangement preferred by me for carrying out my Invention, I
do not confine myself thereto, as variations may be made in the details,
and yet the peculiar character of my improvements be retained, whereby
air is heated by passing through suitable pipes, tubes, or passages heated
by the fire, such heated air being ordinarily alone used for the malt-
ing process; and it will be evident that the form of the parts may be
varied, and yet obtain these results. What I claim is the mode herein
described of constructing and heating malt kilns.
In witness whereof I, the said William Walker, have hereunto set
my hand and seal, this Third day of October, in the year of our
Lord One thousand eight hundred and fifty-three.
WILLIAM WALKER. (L.S.)
Witness, SAMUEL WALKER.