NEW METHOD OF MAKING AND MANUFAC- TURING OF SALT
Year: 1761

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JoHN
MACKAY, of the Parish of Saint Andrew, Holbern, in the County of Middle-
sex, Esquire, send greeting.
WHEREAS IIis most Excellent Majesty King George the Third, by His
Royal Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Sixth day of February, in the first year of Ilis said Majesty's
reign, did give and grant unto me, the said John Mackay and Jonathan
Greenall, of Parr, in the County of Lancaster, Engineer, our exors,
aduiors, and assigns, servants and agents, or such others as wee should at
any time agree with, His special licence, full power, sole priviledge and
authority, that we, the said John Mackay and Jonathan Greenall, should and
lawfully might use and exercise our "NEW METHOD OF MAKING AND MANUFAC-
TURING OF SALT," within that part of Ilis said Majesty's Kingdom of Great
Britain called England, His Dominion of Wales, and Town of Berwick-upon-
Tweed, and also in His Majesty's Plantations and Colonies abroad, for
and during the term of fourteen years; in which said Letters Patent there is
contained a proviso obliging us, the said John Mackay and Jonathan Greenall,
or one of us, under our or one of our hands and seals, to cause a particular

page_text: description of the nature of our said Invention, and in what manner the
same is performed, to be inrolled in His Majesty's High Court of Chancery
within four calender months next and immediately after the date of the said
Letters Patent, as in and by the said Letters Patent, relation being thereunto
had, will more at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Mackay, do hereby describe and ascertain the nature of my said
Invention, and the manner in which the same is performed, to be according to
the Plan and description hereunto annexed, with this farther description or
explanation (that is to say):-
The fires under them
The pan may be made in many other shapes with great advantage from
thirty to three hundred feet long, from sixteen feet to thirty-five feet wide, and
from four inches to twenty-four inches deep, with fires from one to fifty on
each side, or only on one side, as may be thought proper, with a hothouse
either at one or both ends, or placed behind the front fires, cither circular or
oval, and of any size from twenty feet to two thousand feet circumference
within the walls, with one or more chimneys and air channels to be placed were
most convenient. The air channels, some crooked, som strait, or all crooked
or all strait, and from one to one hundred in number. The refiners from six
inches to any depth that shall be found most proper.
from one to ten in number, and the fireplaces, together with the refiners to be
made of any size or form which may be best adapted to the size of the pan or
judged most convenient. Some pans of the smaller size may only require one
refiner and one hothouse, with one large air channell and several side ones,
which may run by one, two, or more channels into different parts of the hot-
house. The scalding boiler to contain from ten to two thousand gallons, and
of any form; to have a fire or fires under it, and therewith to be fixed or move-
able. Some may be made with fires in the front and hothouses behind, in any
form or place, tho' not with so great advantage.
In witness whereof, I, the said John Mackay, have hereunto set my
hand and seal, the Ninth day of May, in the year of our Lord One
thousand seven hundred and sixty-one.

page_text: AND BE IT REMEMBRED, that the Ninth day of May, in the year
of our Lord 1761, the aforesaid John Mackay came before our said Lord the
King in His Chancery, and acknowledged the Specification aforesaid, and
all and every the thing therein contained and specifyed, in form abovo written.
And also the Specification aforesaid was stampt according to the tenor of
the Statute made in the sixth year of the reign of the late King and Queen
William and Mary of England, and so forth.
Inrolled the Twenty-third day of May, in the year of our Lord Onc
thousand seven hundred and sixty-one.

page_text: A. The Pan B. Fireplaces below the Pan, from these Fire places proceed the Channel for conveying hial into the Channels c.below the Pan and the Refiners C, and inla
Ilot houses D, in which are Chimneys E, wherein the Channels c. terminate F.Pre plans below the Refiners C, for Boiling the Brine and for conveying heal through the
Channels finto the Channels e and Hothouses D. G Gangways with doors g for a parage into the Hot houses H weighing Houses with Doors I Walls of the Great Channels
K.Walls of the Pan House, Hot houses, and Waghing houses in these Walls are doors and indows.I a Vessel for conveying scalding air ather into the Refiners or hun.
The Liquor to be let into the Pan from the Refiners by Cocks or other methods; and the Hoouses and Wayhing houses to be placed anywhere in the Bailling as judged most