CERTAIN IMPROVEMENTS IN THE PROCESSES AND MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE OF SALT
Year: 1851

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
SIMPSON LEAKE, of Whitehall Salt Works, in the County of Chester, Manu-
facturer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Eighteenth day of Sep-
tember, One thousand eight hundred and fifty-one, in the fifteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the said
John Simpson Leake, my exors, adñiors, and assigns, Her especial licence,
full power, sole privilege and authority, that I, the said John Simpson Leakė,
my exors, admors, and assigns, or such others as I, the said John Simpson
Leake, my exors, adiňors, or assigns, should at any time agree with, and no
others, from time to time and at all times during the term of years therein
expressed, 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 PROCESSES AND MACHINERY OR APPARATUS
EMPLOYED IN THE MANUFACTURE OF SALT;" in which said Letters Patent is
contained a proviso that I, the said John Simpson Leake, shall cause a
particular description of the nature of my said Invention, and in what manner
the same is to be performed, by an instrument in writing under my hand and
seal, to be inrolled in Her Majesty's High Court of Chancery within six
calendar months next and immediately after the date of the said in part

page_text: recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Simpson Leake, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, are fully described and
ascertained in and by the present Specification thereof, reference being had
to the Drawings hereunto annexed, that is to say:
My Invention consists of an improved arrangement of machinery or
apparatus, whereby the process of manufacturing salt from, brine is greatly
accelerated, and the labor attending the same also much reduced.
Figure 1 of the annexed Drawings exhibits a plan, Figure 2 a side elevation,
and Figure 3 an end elevation of this improved arrangement. A, A, is a salt
pan of the ordinary construction. B, B, rails placed between the pans, and
C, C, a hurdle or truck with perforated floor or bottom which runs on wheels
on the rails B, B, and has hinges at D, D, to enable it to be tilted over at the
end of each traverse of the pan. The hurdle or truck is loaded with salt, and
then drawn or pushed along the rails (the pan being exposed as usual to the
action of fire), during which part of the brine returns still in a state of hot
solution into the pan through the holes in the floor or bottom of the hurdle,
while the remainder, or all that attains the concentrated state in the course of
each traverse of the hurdle, is on its arrival at the opposite end of the pan
shot into warehouse boats or trucks placed there for its reception. No heat
is thus wasted in partial or imperfect evaporation of the brine, and nearly all
the labour at present incurred in shifting the salt by barrows and other means
is avoided.'
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that what I claim as my
Invention in relation to the manufacture of salt from brine is the passing of
the materials over the top of the pans by means of wheeled or other trucks, or
hurdles running on rails for that purpose placed between the pans, and having
perforations in the floors or bottoms thereof, through which part of the brine
is returned in a state of hot solution into the pans, while the remainder, or all
that attains, during each traverse of the hurdle, the concentrated state, i.e., the
salt, is carried forward and discharged into the warehouse boats or trucks.
"
In witness whereof, I, the said John Simpson Leake, have hereunto
set my hand and seal, this Thirteenth day of March, in the year of our
Lord One thousand eight hundred and fifty-two.
JOHN SIMPSON (L.S.) LEAKE.

page_text: AND BE IT REMEMBERED, that on the Thirteenth day of March, in the
year of our Lord 1852, the aforesaid John Simpson Leake came before
our said Lady the Queen in Her Chancery, and acknowledged the Specifica-
tion aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was stamped according
to the tenor of the Statute made for that purpose.
Enrolled the Eighteenth day of March, in the year of our Lord One
thousand eight hundred and fifty-two.