AN IMPROVED METHOD OF EVAPORATING AND COOLING FLUIDS
Year: 1836

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
BRANDT, of Upper Belgrave Place, in the County of Middlesex, Machinist,
send greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster the Twenty-seventh day of July, in the Seventh year of His
reign, did, for Himself, His heirs and successors, give and grant unto me, the
said Charles Brandt, His especial licence that I, the said Charles Brandt, my
exors, admors, and assigns, or such others as I, the said Charles Brandt, my
exors, admors, 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 "AN IMPROVED METHOD OF
EVAPORATING AND COOLING FLUIDS," in which said Letters Patent is contained a
proviso obliging me, the said Charles Brandt, by an instrument in writing,
under my hand and seal, particularly to describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, and to
cause the same to be enrolled in His said Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said
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
Charles Brandt, do hereby declare the nature of my said Invention to consist

page_text: in exposing the fluid to be evaporated or cooled on a series of extended sur-
faces by means of endless webs or bands, or extended surfaces connected
therewith, either or both constantly moving through the fluid and through
the natural or an artificial atmosphere, as the case may be; and in further
compliance with the said proviso, I, the said Charles Brandt, do hereby
describe the manner in which my said Invention is to be performed, by the
following statement thereof, reference being had to the Drawing and to the
figures and letters marked thereon, that is to say.
DESCRIPTION OF THE DRAWING.
Figure 1 is intended to represent a vat or tank of brewers wort in progress
of cooling by means of one modification of my said Invention. A, A, A, A, is
a vat, tank, or reservoir of hot wort; B, B, B, is a frame to support the
cooling apparatus; C, C, C, C, are four wooden rollers, which I call the lower
rollers, and D, D, D, D, are four similar wooden rollers, which I call the
upper rollers; E, E, E, E, are spur wheels working into each other, and F is
a crank handle fitted on to one, by turning which motion is given to the
whole; G, G, G, G, are four endless webs made of linen, hair-cloth, or other
suitable substance. Now, supposing the wort to be warm, but not sufficiently
to give off any perceptible vapour, if the handle F is turned smartly round for
a few revolutions a dense steam or vapour will arise, and the temperature of the
wort in the vat will be rapidly reduced. If the object be to evaporate rather than
to cool, as, for instance, in the process of evaporating brine in the manufacture
of salt, then I make my rollers of any suitable metal or other material,
(dependant on the nature of the fluid to be evaporated,) and hollow, and intro-
duce hot steam through both the upper and lower rollers, in order to heat the
fluid in one case, and to drive it off in vapour from the web in the other, and
in such cases I add to the endless webb or band leaves or what I call surface
boards or drip leaves, as shewn in Figure 2, which represents one upper and
one lower roller only of the apparatus, which will, when complete, be com-
prised, as before, of a series of several'; G, G, is the endless webb, as before
and the parts similar to that marked H, are thin leaves of wood or metal, or
other suitable material, sewed lace, or otherwise hinged on to the web, and
furnished with check strings as at J, J, J, by which a proper angle is preserved,
as here shewn. As these leaves, which I call drip leaves, are carried round
by the web a very extensive surface of the fluid is exposed for evaporation,
which the constant dripping from the drip leaves greatly promotes, and if the
operation be performed in an artificially heated atmosphere the result will
be very rapid evaporation.

page_text: Now, whereas, I claim as my Invention the exposure of fluids to natural
or artificial atmospheres on endless webbs or bands or extensive surfaces con-
nected therewith, like the drip leaves, either for the purpose of cooling the
said fluids, or of evaporating the same in order to obain any resididium that
may be held in solution therein; and such my Invention being to the best of
my knowledge and belief entirely new, and never before used within that part
of His said Majesty's United Kingdom of Great Britain and Ireland called
England, His said Dominion of Wales, or Town of Berwick-upon-Tweed, I
do hereby declare this to be my Specification of the same, and that I do verily
believe this my said Specification doth comply in all respects fully and without
reserve or disguise with the proviso in the said herein-before in part recited
Letters Patent contained, wherefore I do hereby claim to maintain exclusive
right and privilege to my said Invention.
In witness whereof, I, the said Charles Brandt, have hereunto set my
hand and seal, this Fourteenth day of September, in the year of our
Lord One thousand eight hundred and thirty-six.
AND BE IT REMEMBERED, that on the Nineteenth day of September
in the year of our Lord 1836, the aforesaid Charles Brandt came before our
said Lord the King in His Chancery, and acknowledged the Specification
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.
Inrolled the Twenty-fifth day of January, in the year of our Lord One
thousand eight hundred and thirty-sovon