CERTAIN IMPROVEMENTS IN THE MAKING AND MANUFACTURING OF QUARRIES APPLICABLE TO KILNS FOR DRYING WHEAT, MALT, AND OTHER GRAIN, AND TO VARIOUS OTHER PURPOSES
Year: 1830

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
PRATT, of Bilston, in the County of Stafford, Miller, send grecting.
WHEREAS His present most Excellent Majesty King William the Fourth,.
by His Letters Patent under the Great Seal of Great Britain, bearing date-
at Westminster, the Eleventh day of November, in the first year of His reign,
did, for Himself, His heirs and successors, give and grant unto me, the said
Henry Pratt, His especial licence that I, the said Henry Pratt, my exors,.
aduiors, and assigns, or such others as I, the said Henry Pratt, my exors,
adiiors, and assigns, should at any time agree with, and no other others, from
time to time and at all times during the term of years therein mentioned, should
and lawfully might make, use, exercise, and vend, within England, Wales, and
the Town of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS
IN THE MAKING AND MANUFACTURING OF QUARRIES APPLICABLE TO KILNS FOR
DRYING WHEAT, MALT, AND OTHER GRAIN, AND TO VARIOUS OTHER PURPOSES;" in
which said Letters Patent is contained a proviso, obliging me, the said Henry
Pratt, by an instrument in writing under my hand and seal, particularly to
describe and ascertain the nature of my said Invention, and in what manner
the same is to be performed, and to cause the same to be enrolled in His
said Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part recited Letters Patent, as
in and by the same, reference being thereunto had, will more fully and at
lage aurear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Henry Pratt, do hereby declare the nature of my said Invention to consist
in forming quarries for kilns and other purposes with oblong slots or openings
at the top of conical channels for the escape of the heated air, instead of the
small holes at the top of circular chambers as heretofore made, and also in
strengthening and cross bars cast on the underside of the said quarries and
forming sides to the conical channels aforesaid, instead of making the quarry
of one uniform thickness, as now practised. And in further compliance with
the said proviso, I, the said Henry Pratt, do. hereby describe the manner in
which my said Invention is to be performed by the following description
thereof, reference being had to the Drawing annexed, and to the figures and
letters marked thereon, that is to say:→
DESCRIPTION OF THE DRAWING.
Figure 1 represents a plan on the upper surface of a quarry for a malt
kiln, supposed to be made of cast iron; shewing the oblong slots or openings
for the heated air to rise through. It will be observed that some of these
slots stand in one direction and others at right angles to them, in order to
allow of what I call the strengthening and cross bars of the casting, which
will be better shewn in the next Figure.
Figure 2 is a section of the quarry supposed to be taken from a to b, as
marked by a red line across the first Figure. c, e, e, e, e, e, e, are what I call
the strengthening bars forming sides to the conical channels r, r, r, r, r, r, r, r,
while the channels s, 5, 5, 5, 5, 8, 8, 8, make up the series in one diameter.
V, V, are two side bars forming a sort of frame to the quarry, and bevelled on
their sides so that when the quarries are laid beside each other to form the
floor of the kiln, there will also be a conical channel on every side of each
quarry; W, W, W, W, are the cross bars aforesaid forming the sides of the
other set of conical channels, which are at right angles with those already
. described, and better seen in the
he next Figure.
Figure 3 is a section of the quarry supposed to be taken from C to D, as
marked by the red line across the first Figure. e is a side view of one of the
strengthening bars, and the remainder of the Figure represents the ends of
a series of cross bars, the outer ones forming the frame round the quarry, as
before described. It will be seen they are bevelled on their outer sides for
the purpose herein-before mentioned in the last described Figure.
Now, whereas it is evident that the said quarries are applicable to hot
houses and air stoves of various kinds as well as to kilns, and I hereby claim
as my Invention a quarry made with slots, as aforesaid, opening from conical

page_text: channels, as aforesaid, with strengthening and cross bars, as aforesaid,
whether the said quarry.be cast in metal, as herein-before described, or
formed of clay in a suitable mould or matrix to combine the same improve-
ments or advantages; and such, my Invention, being to the best. of my
knowledge and belief entirely new and never before used within that part of
His said Majesty's United Kingdom of Great Britain and Ireland, called
England, His said Dominion of Wales, or Town of Berwick-upon-Tweed, I
do hereby declare this to be my Specification of the same, and that I do
verily believe this my said Specification doth comply in all respects fully and
without reserve or disguise with the said proviso in the said herein-before in
part recited Letters Patent contained; wherefore I hereby claim to maintain
exclusive right and privilege to my said Invention.
In witness whereof, I, the said Henry Pratt, have hereunto set my
hand and seal, this Thirtieth day of April, One thousand eight hundred