IMPROVEMENTS IN CONSTRUCTING FURNACES FOR HEATING SALT PANS, AND FOR OTHER PURPOSES
Year: 1867

page_text: LETTERS PATENT to William Dutton, of Winsford, in the County of
Chester, Salt Maker, for the Invention of "IMPROVEMENTS IN CONSTRUCTING
FURNACES FOR HEATING SALT PANS, AND FOR OTHER PURPOSES."
Sealed the 3rd September 1867, and dated the 25th May 1867.
PROVISIONAL SPECIFICATION left by the said William Dutton at the
Office of the Commissioners of Patents, with his Petition, on the 25th
May 1867.
I, WILLIAM DUTTON, of Winsford, in the County of Chester, Salt Maker,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
CONSTRUCTING FURNACES FOR HEATING SALT PANS, AND FOR OTHER PURPOSES," to be
as follows:
This Invention has for its object improvements in constructing furnaces for
heating salt pans, and for other purposes. Two sets of fire-bars are used in
two fire-boxes placed side by side, but with a flue space between them. At
the back of the fire-boxes are side openings into this flue space, which is
divided by a horizontal partition into two parts communicating at the front.
The products of combustion from both fire-boxes pass in common into the
flue space between the fire-boxes and then along the upper part thereof to the
front, they then descend to the under side of the partition and pass again to
the back and under the bottom of the pan. The pan also forms the top of the
fire-boxes and of the flue space between them.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Dutton in the Great Seal Patent Office on the
25th November 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
DUTTON, of Winsford, in the County of Chester, Salt Maker, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Iler Letters
Patent, bearing date the Twenty-fifth day of May, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of 1er
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said William Dutton, William Dutton, Her special licence that I, the said
Villiam Button, my executors, administrators, and assigns, or such others as I,
the said William Dutton, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times there-
after 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 CON-
STRUCTING FURNACES FOR HEATING SALT PANS, AND FOR OTHER PURPOSES," upon the
condition (amongst others) that I, the said William Dutton, my executors or
administrators, by an instrument in writing under my, or their, or one of
their hands and seals, should particularly 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 inmediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said William Dutton, 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: -
This Invention has for its object improvements in constructing furnaces
for heating salt pans, and for other purposes. Two sets of fire-bars are
used in two fire-boxes placed side by side, but with a flue space between them.
At the back of the fire-boxes are side openings into this flue space, which is
divided by a horizontal partition into two parts communicating at the front.
The products of combustion from both fire-boxes pass in common into the
flue space between the fire-boxes and then along the upper part thereof to the
front, they then descend to the under side of the partition and pass again to

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is a horizontal section of a portion of a salt pan with two fires
arranged according to my Invention; Figure 2 is a vertical section; Figure 3,
a front view, partly in section, of the same.
a, a, is the brickwork of the furnaces; b, the pan supported thereby; c, c,
are the two sets of fire-bars; d, d, are the dead plates; and e, e, are the fire-
doors; f is the upper return flue, into which the flames and products of
combustion from the two furnaces pass; the flue f is divided from another
flue g beneath it, by a fire lump or slab from the flue g; the heated products
from the furnaces pass into a system of flues beneath the pan and thence into
the chimney; Figures 4, 5, and 6, are similar views of a salt pan heated by
four fires, the pan is here shown complete. The letters of reference correspond
with the description already given.
In witness whereof, I, the said William Dutton, bave hereunto set my
hand and seal, this Nineteenth day of November, in the year of our
Lord One thousand eight hundred and sixty-seven.
WILLIAM DUTTON. (L.S.)