A NEW AND IMPROVED KILN FOR THE PURPOSE OF DRYING MALT, WHEAT, OATS, BARLEY, PEAS, BEANS, AND OTHER SUBSTANCES, BY MEANS OF STEAM, ASSISTED BY AIR
Year: 1817

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, we, THOMAS
WHITTLE, of the City of Chester, Wharfinger, and GEORGE EYTON, of the same
City, Gentleman, send greeting.
WHEREAS His most Excellent Majesty King George the Third, in and
by His Letters Paten: under the Great Seal of that part of Great Britain and
Ireland called England, bearing date at Westminster, the Tenth day of June
last past, for Himself, His heirs and successors, did give and grant unto us,
the said Thomas Whittle and George Eyton, our exors, adñiors, and assigns,
His especial licence, full power, sole privilege and authority, that we, the
said Thomas Whittle and George Eyton, our exors, adiñors, and assigns, as
therein mentioned, from time to time and at all times thereafter during the
term of years therein expressed, should and might lawfully make, use, exercise,
and vend, within that part of Great Britain and Ireland called England, our
Dominion of Wales, and the Town of Berwick-upon-Tweed, our Invention of
"A NEW AND IMPROVED KILN FOR THE PURPOSE OF DRYING MALT, WHEAT,
OATS, BARLEY, PEAS, BEANS, AND OTHER SUBSTANCES, BY MEANS OF STEAM,
ASSISTED BY AIR;" in which said Letters Patent there is contained a proviso
obliging us, the said Thomas Whittle and George Eyton, by an instrument in
writing under our hands and seals, particularly to describe and ascertain the
nature of our said Invention, and in what manner the same is to be performed,
and to cause the same to be inrolled in His Majesty's High Court of Chancery
within that part of Great Britain and Ireland called England, within six
months from the date of the said recited Letters Patent, as in and by the
same, reference being thereto had, will more fully appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, we, the said
Thomas Whittle and George Eyton, do hereby describe and ascertain the
nature of our said Invention, and in what manner the same is to be performed,
by the Plan or Drawing in the margin of these Presents, and the following
description thereof, that is to say:-
The pipes, &c. are calculated for a floor of eighteen feet square; and it is
seen by the Plan that the steam from the boiling water first communicates its
heat to the floor of the kiln, and that the pipes (G) fixed to each angle of the
floor, and also the pipes (E) with which they communicate, and which are
connected together in the square box (F) at the centre (being the only pas-
sages through which the steam can escape), are likewise heated by the steam
passing through them. These pipes are considered of service to assist the
process of drying, as it is found that any dampness thrown up from the article
in drying by the heat of the floor becomes attracted by the heat above, and
passes off much quicker than it otherwise would. The mode of conveying air
under the floor is seen by the Plans No. 1 and 2 to be by pipes from the
boundary wall; that is to say, one (I) to the centre of the floor of ten inches
diameter, and four others (H) to each of the mid-angles, of eight inches
diameter. These pipes, by passing through the boiler, are attached to the
under side of the top part of it by elbow and flange, and are steam-tight. The
other end of the pipes through the boundary wall can either be closed or not
as is found necessary in the process of drying, but till the moisture is suffi-
ciently evaporated it is found best to keep all the air pipes open. The air, in
passing through the pipes is, of course, considerably heated before it passes
through the tiles on the floor. Independently of these pipes to convey air,
there are openings four inches and a half deep in the boundary wall, corre-
sponding with the spaces between the blocks which support the tiles, for the
purpose of admitting air through the kiln, and for cleaning out the dust that
may occasionally fall through the tiles, which may be done with a small rake
and brush. For quick drying it is recommeded that the whole of the said
openings in the boundary wall should be stopped close, in which case the whole
of the air conveyed under the floor will pass through the said pipes (I and H).
From the formation of the tiles (W) and the circular blocks (Y) supporting
the same, it will be seen that the air, once admitted, will easily spread through
every part of the space under the floor, and penetrate into the drying room
through the perforations in the tiles, and whatever lies on the floor to dry.
The boiler may be of cast iron or forge iron; but forge iron plates a quarter
of an inch thick, riveted steam tight, will be found less subject to accident,
and may be put together at about the same expence as cast iron. To prevent

page_text: accident in feeding the boiler with cold water, a block of deal wood is attached
to the end of a pipe (J) from the cistern, which floats on the surface of
the water inside the boiler, and regulates the supply in proportion to the
evaporation.
A, the
The references in the Plan or Drawing are explained as follows:-
No. 1, section through the fireplace, boiler, and drying room.
valve for the escape of waste steam. B, the line to regulate the valve.
C, the escape pipe, six inch diameter. D, the cupola. E, pipes for con-
veying the steam from the boiler, six inch diameter. F, square box to
connect the pipes (E) communicating with the pipes (G) from each angle.
G, upwright pipes, six inch diameter, to connect the boiler with the pipes (E).
H, pipes, eight inch diameter, to convey air through the steam, and
attached to the plate by a flange, which charges the space under the tiles
with warm air. I, a pipe, ten inch diameter, for the same purpose as pipes H.
J, a ditto to convey water from the cistern to the boiler. K, half-inch
ditto, fixed three inches above water line, to ascertain whether there is too
great a charge of water in the boiler. L, half-inch pipe fixed three inches
below water line to ascertain a proper quantity of water in the boiler. M, cis-
tern to supply boiler with water. N, flue round the boiler to convey smoke
to chimney. O, the fire grate. P, the ash pit. Q, plate between fire grate
and door used for the purpose of burning smoke. U, the section of the tile
and circular block. V, the section of the plate. W, W, plan and section of
one of the tiles, twelve inches square and two inches thick, full of small holes
through. X, the section of the block. Y, the block, four inches and a half
high, and the diameter of which is six inches.
No. 2, Plan of half the top of the boiler, and half of the drying floor,
R shewing half of the floor with the tiles on. H, eight-inch pipes to convey
air under the floor. G, six-inch ditto to convey steam from the boiler to heat
the drying room. S, half the floor with the tiles off, shewing the covering of
the boiler. I, the ten-inch pipe conveying air to the centre of the floor.
No. 3, Plan of the fireplace and flue of the chimney.
O, the grate. Q, the plate between fire grate and door.
T, the ground plan.
N, the flues.
In witness whereof, we, the said Thomas Whittle and George Eyton,
have hereunto set our hands and seals, this First day of December,
One thousand eight hundred and seventeen.

page_text: AND BE IT REMEMBERED, that on this First day of December, in the
year of our Lord 1817, the aforesaid Thomas Whittle and George Eyton came
before our said Lord the King in His Chancery, and acknowledged the
Specification aforesaid, and all and every thing therein contained and specified,
in form above written. And also the Specification aforesaid was stampt
according to the tenor of the Statute made for that purpose.
Inrolled the Eighth day of December, in the year of our Lord One
thousand eight hundred and seventeen.