IMPROVEMENTS IN APPARATUS EMPLOYED IN THE MANUFACTURE OF SALT
Year: 1872

page_text: LETTERS PATENT to Otto Ernest Pohl, of Liverpool, in the County
of Lancaster, Salt Manufacturer and Merchant, for the Invention
of "IMPROVEMENTS IN APPARATUS EMPLOYED IN THE MANUFACTURE OF
SALT."
Sealed the 31st December 1872, and dated the 22nd October 1872.
PROVISIONAL SPECIFICATION left by the said Otto Ernest Pohl at
the Office of the Commissioners of Patents, with his Petition, on
the 22nd October 1872.
I, OTTO ERNEST POHL, of Liverpool, in the County of Lancaster, Salt
Manufacturer and Merchant, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN APPARATUS EMPLOYED IN THE MANUFACTURE
OF SALT," to be as follows:-
The object of my Invention is to produce salt in a merchantable con-
dition at less cost. For that purpose I proceed as follows:-
:-
First. As means for economizing fuel I arrange ordinary or con-
venient evaporating pans, one on the top of or over the other, and past
the flames, heating gases, or products of combustion over the brine in'

page_text: the lower pan, and at the same time under the bottom of the top pan.
Doors are provided for withdrawing the salt from the bottom pan.
Series of double pans may be used, and the flames, heating gases, or
products of combustion and steam led over the brine.
Second. As means for providing a cheap and durable cover for 5
evaporating pans I construct such covers of a combination of wood or
other like material and lead, lead being used to line the wood or other
material forming the frame.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Otto Ernest Pohl in the Great Seal Patent Office
on the 21st April 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, OTTO
ERNEST POHL, of Liverpool, in the County of Lancaster, Salt Manu-
facturer and Merchant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of October, in the
year of our Lord One thousand eight hundred and seventy-two, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Otto Ernest Pohl, Her special licence
that I, the said Otto Ernest Pohl, my cxccutors, administrators, and
assigns, or such others as I, the said Otto Ernest Pohl, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make,, usc, exercise,
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN APPARATUS EMPLOYED IN THE MANUFACTURE OF SALT," upon the condition
(amongst others) that I, the said Otto Ernest Pohl, 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 immediately after
the date of the said Letters Patent.

page_text: doing so however there must be sufficient chimney space for the waste
products and steam.
Second Part. Drawings have not been made of this part. Con-
structing a cover for the above salt pans, or for any salt pans of a
combination of wood or other suitable material lined with lead or with
an internal surface wholly or nearly so of lead can be effected by any
ordinary workman, the shape of the pan being given. In practice I
prefer that the cover should come close down to the pan, and that
there should be gutters for conveying away the water of condensation,
but the cover may be raised so as to leave a space between it and 1
the pan.
Having now described the nature of my said Invention, and parti-
cularized the same, I claim,-
First. Arranging evaporating pans one over the other, and passing
the flames, heating gases, or products of combustion over the brine in
the lower pan, and under the bottom of the top pan for the purpose sct
forth.
Second. Constructing covers for evaporating pans of wood or other
material lined with lead, substantially as described.
In witness whereof, I, the said Otto Ernest Pohl, have hereunto 2
set my hand and seal, the Twelfth day of April, in the year
of our Lord One thousand eight hundred and seventy-three.
In the presence of
JAMES JOHNSON,
Clerk to J. T. King,
Liverpool.
OTTO ERNEST POHL. (L.S.)