IMPROVEMENTS IN APPARATUS. FOR EVAPORATING OR RECOVERING LEES
Year: 1866

page_text: LETTERS PATENT to Alexander Swan, of Kircaldy, in the County of
Fife, Manufacturer, for the Invention of "IMPROVEMENTS IN APPARATUS.
FOR EVAPORATING OR RECOVERING LEES."
Sealed the 12th October 1866, and dated the 13th April 1866.
PROVISIONAL SPECIFICATION left by the said Alexander Swan at the
Office of the Commissioners of Patents, with his Petition, on the 13th
April 1866.
I, ALEXANDER SWAN, of Kircaldy, in the County of Fife, Manufacturer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS, FOR EVAPORATING OR RECOVERING LEES," to be as follows:-
My Invention consists, firstly, in the combination of a close evaporating
vessel and of an open evaporating pan, as about to be described.
I place upon the top of the close vessel an open pan, the lower part of
which is shaped to correspond with the top of the close vessel, so that the.
heat given off from the close vessel may heat the open pan and evaporate the
contents thereof. I prefer to carry a pipe from the upper part of the close
vessel, which pipe is bent round and carried over the open pan and terminates
in an open cistern, from the lower part of which another pipe leads down into
the close vessel; thus the lees and the steam which pass from the close vessel.

page_text: are conducted by the first-named pipe to the cistern, where they become sepa-
rated, the lees descending by the second-named pipe back into the close vessel,
while the steam is allowed to escape. The open pan is supplied from the
first-named pipe or otherwise as required.
My Invention consists, secondly, in an arrangement for feeding the close
vessel. I employ above the level of the close vessel a cistern in communi-
cation by a pipe with a reservoir containing the lees. I fit a ball-cock in
the cistern, which closes the communication with the reservoir when the
cistern is sufficiently full, and vice versa. A second pipe leads from the
cistern to the close vessel.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alexander Swan in the Great Seal Patent Office on the 18th
October 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
SWAN, of Kircaldy, in the County of Fife, Manufacturer, send greeting.,
WHEREAS Her most Excellent Majesty Queen Victoria, by. Her Letters
Patent, bearing, date the Thirteenth day of April, in the year of our
Lord One thousand eight hundred and sixty-six, in the twenty-ninth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Alexander Swan, Her special licence that I, the said Alexander
Swan, my executors, administrators, and assigns, or such, others as 1,, the
said Alexander Swan, 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, 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
APPARATUS FOR EVAPORATING OR RECOVERING LEES," upon the condition.
(amongst others) that I, the said Alexander Swan, my executors or adminis-
trators, by an instrument in writing under my, or their, or one-off their
bands 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.
NOW KNOW YE, that I; the said Alexander Swan, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained' in and by the following

page_text: statement thereof, reference being had to the Drawings hereunto-annexed,
that is to say:-
My Invention consists, firstly, in the combination of a close evaporating
vessel' and of an open evaporating pan, as about to be described.
I place or construct upon the top of the close vessel an open pan, the lower
part of which is shaped to correspond with the top of the close vessel, so that
the heat.given off from the close vessel may heat the open pan and evaporate
the contents thereof. I prefer to carry a pipe from the upper part of the close
vessel, which pipe is bent round and carried over the open pan and terminates in
an open cistern, from the lower part of which another pipe leads down into the
close vessel; thus the lees and the steam which pass from the close vessel' are-
conducted by the first-named pipe to the cistern, where they become separated,
the lees descending by the second-named pipe back into the close. vessel, while
the steam is allowed to escape. The open pan is supplied, from the first-
named pipe or otherwise as required.
My Invention consists, secondly, in an arrangement for feeding the close
vessel. I employ above the level of the close vessel a cistern in communica-
tion by a pipe with a reservoir, containing, the lees.. I fit a ball-cock in the
cistern, which closes, the communication with. the reservoir when the cistern is
sufficiently full, and vice versa. A second pipe leads from the cistern to the
close vessel.
Figure 1 of the accompanying Drawings is a side elevation; Figure 2, a
longitudinal section; Figure 3, an end elevation; and, Figure 4, a transverse
section of an apparatus for evaporating or recovering lees constructed
according to my improvements.
manner.
A is a close evaporating vessel heated by furnace flues F in the ordinary
C is a pipe carried up from the upper part of the close vessel A,
bent round as shewn and terminating in an open cistern or vessel D, from the
lower part of which a pipe I leads down to the close vessel A. The lees
and the steam which pass from the close vessel are conducted by the pipe C to
the cistern D, where they become separated, the lees descending by the pipe I
back to the vessel A, while the steam is allowed to escape. Upon the top of
the close vessel A I place or construct an open evaporating pan B, the bottom
of which is formed by the top of the vessel A; the heat given off from the
top of the vessel A heats the pan B, and evaporates the contents thereof. The
pan B is supplied as required from the pipe C by opening the cock K, or it
may be otherwise supplied. E is a cistern above the close vessel A in com-
munication therewith by a pipe L, and with a reservoir containing the lees by
a pipe M. G is a ball-cock in the cistern E which closes the communication

page_text: with the reservoir when the cistern is sufficiently full. The vessel A is
therefore always supplied with lees through the pipe L.
And having now, described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim as my "Improve-
ments in Apparatus for Evaporating or Recovering Lees,"-.
First, the combination in such apparatus, substantially as herein-before
described and represented in the accompanying Drawings, of a close evaporating
vessel and an open evaporating pan.
Secondly, the arrangement for feeding the close evaporating vessel,.
substantially as herein-before described and represented in the accompanying
Drawings.
In witness whereof, I, the said Alexander. Swan, have hereunto set my
band and seal, this Twelfth day of October, One thousand eight.
hundred and sixty-six.