AN IMPROVEMENT IN BOILERS, APPLICABLE TO SALT PANS, OR ANY OTHER PURPOSE WHERE A SAVING OF FUEL IS AN OBJECT
Year: 1799

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WILKINSON, of Castle Head, in the County of Lancaster, Iron Master, send
grecting.
WHEREAS His most Excellent Majesty King George the Third, did, by
His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-eighth day of May, in the thirty-ninth year of His
reign, give and grant unto me, the said John Wilkinson, His especial licence,
that I, the said John Wilkinson, during the term of years therein mentioned,
should and lawfully might use, exercise, and 'vend, within England, Wales,
and the Town of Berwick-upon-Tweed, my Invention of "AN IMPROVEMENT IN
BOILERS, APPLICABLE TO SALT PANS, OR ANY OTHER PURPOSE WHERE A SAVING OF
FUEL IS AN OBJECT;" in which said Letters Patent there is contained a proviso,
obliging me, the said John Wilkinson, by an instrument in writing under
my hand and seal, to cause a particular description of the nature of my said
Invention, and in what manner the same is to be performed, to be inrolled
in His Majesty's High Court of Chancery within one calendar month after
the date of the said recited Letters Patent, as in and by the same (relation
being thereunto had), may more fully and at large appear,

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
John Wilkinson, do hereby declare that my said Invention is described in the
Drawings and description thereof hereunto annexed.
In witness whereof, I, the said John Wilkinson, have hereunto set my
hand and seal, this Thirty-first day of May, in the year of our Lord
One thousand seven hundred and ninety-nine.
AND BE IT REMEMBERED, that on the same Thirty-first day of May,
in the year above mentioned, the aforesaid John Wilkinson came before our
Lord the King in His Chancery, and acknowledged the Specification aforesaid,
and all and everything therein contained, in form above written. And also
the Specification aforesaid was stamped according to the tenor of the Statute
in that case made and provided.
Inrolled the same Twenty-third day of May, in the year above written.

page_text: The Boilers instead of being made either Round or of a short obleng square with flues round the outside and the fire applied as in the
commen method; are by me made of great length, without any flues round the outside and the fire: more uniformly applied as sham
by the annexed Drawings. Fig. 1. is a horizontal Section and Fig. 2. a vertical Section of a Boiler 60 feet in length and 6 feet in breadth
The heat from the fires passing uniformly along the bottom rises up at one end returning by flues through the water to the other end opens
into the Chimney which carries off the smoak. Fig. 3. is a horizontal section of another boiler 60 feet by 12 feet with two partition walls un-
derneath dividing its bettem longitudinaly into three spaces. The heat from the fires which are placed in the two outer spaces passing along
the bottom to one end returns back through the middle space under the bottom to the ether end opening into the Chimney as before. The advantage
in these brilas consists in being of greater lengths then these made in the common way and being without flues on the outside admits of
shallower depths. The fire being applied soley to the bottom in the one case and in the other with the return through the water which
admits the Beiler to be made of half the breadth. The length and breadth of these boilers and number of fire places may be varied at