AN ANTI-EVAPORATING COOLER TO FACILITATE AND REGULATE THE REFRIGERATING OF WORTS OR WASH IN ALL SEASONS OF THE YEAR FROM ANY DEGREE OF HEAT BETWEEN BOILING AND THE TEMPERATURE REQUIRED FOR FERMENTING
Year: 1823

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BUNDY, of Fulham, in the County of Middlesex, Mathematical Instrument
Maker, send greeting.
WHEREAS His most Excellent Majesty King George the Fourth did,
by His Letters Patent under the Great Seal of His United Kingdom, bearing
date at Westminster, the First day of November, 1823, in the fourth year
of His reign, give and grant unto me, the said William Bundy, my exors,
adñiors, and assigns, His especial licence, full power, sole privilege and
authority, that I, the said William Bundy, his exors, admors, and assigns,
during the term of years therein mentioned, should and lawfully might make,
use, exercise, and vend, within England, Wales, and the Town of Berwick-
upon-Tweed, and also in all His Majesty's Colonies and Plantations abroad,
my Invention of "AN ANTI-EVAPORATING COOLER TO FACILITATE AND REGULATE
THE REFRIGERATING OF WORTS OR WASH IN ALL SEASONS OF THE YEAR FROM
ANY DEGREE OF HEAT BETWEEN BOILING AND THE TEMPERATURE REQUIRED FOR
FERMENTING;" in which said Letters Patent there is contained a proviso, that
if I, the said William Bundy, shall not particularly describe and ascertain the
nature of my said Invention, and in what manner the same is to be per-
formed, by an instrument in writing under my hand and seal, and cause the
same to be inrolled in His Majesty's High Court of Chancery within six ca-
lendar months next and immediately after the date of the said Letters Patent,
that then the said Letters Patent, and all liberties and advantages whatsoever
thereby granted shall utterly cease, determine, and become void, as in and by
the same, relation being thereunto had, will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
William Bundy, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by the Drawing hereunto annexed, and the following
description thereof, that is to say :—
My anti-evaporating cooler consists of a series of pipes or tubes issuing from
the main trunk through which the hot wort or other liquor is to flow. These
pipes are to be enclosed in a tub or vat and surrounded with cold water, by
which the heat of the liquor as it flows through the pipes is abstracted, and the
wort cooled down to the required temperature. The construction of the
apparatus will be fully understood by the annexed Drawing and following
description, that is to say:-
Fig. 1 represents two vats filled with water, each containing a series of
the refrigerating pipes, issuing from a main trunk at top and concentrating
into a main trunk at bottom. (The first vat A, the external appearance of
which is shewn, is supposed to contain a similar series of. pipes to those
exhibited in the section of the second vat B, but differing in.. diameter, the
pipes in A being about 1 inch in diameter, those in B about.a. of an inch.
The wort runs from the boiler through the cock a into what may be called
the hop back b, and from thence, after being strained, flows. through the
cock c into a distributing box d, which is shewn detached at Fig. 2. From
this box a series of pipes of equal lengths (say sixteen) branch off. and. are
coiled round in the way shewn at B, Fig. 1, where they are made to lay as
nearly as possible upon the same inclination, and are all brought ultimately
into one trunk in the manner shewn by the plan or horizontal view, Fig. 3.
In this Figure the pipes are seen coiled in five circles, the upper branches
of the pipes, eleven in number, being broken off that they may not confuse the
Drawing. These eleven pipes are bent round and brought into the coil one
above the other as convenience may dictate, and are supported by small blocks
on the sides of the wooden standards, observing that the general inclination
of the whole should be as nearly upon the same angle of descent as possible.
The second series of pipes in the vat B are disposed precisely the same as
'those in in the vat A, and the effect of this cooling apparatus: will be as
follows: Suppose the wort to be run into the hop back nearly at a boiling heat,
it flows thence through the cock c into the box d, and to the distributing pipes;
these are surrounded with water, which as the wort flows through the pipes
takes up the heat and consequently cools the liquor considerably. At the
bottom of the coil all the pipes concentrate into one trunk, as seen in the
second vat. The wort may now be drawn off by the cock e, at the bottom of

page_text: the vat A; but if its temperature should not be sufficiently lowered it may run
through another series of pipes at B. In that case the cock e must be shut
when the wort will rise through the trunk f into the distributing box g, from
whence it will flow through the second series of pipes B, and ultimately into
the trunk h, where all the pipes concentrate. The wort by this time will be
sufficiently cooled for fermentation, and for that purpose it is allowed to flow
through the cock i into working squares or other vessels at the precise degree
of heat required, being regulated to that degree by the opening or partial closing
of the cock i. In order to produce this refrigerating effect the pipes must
be surrounded with cold water; this is conveyed first into the vat B by means
of the shute j, and is made to flow down the central trunk k, and through an
opening at bottom into the vat, by which means the cold water, will be directed
to the lower part of the vessel, while the water which has become warm by the
refrigerating process carrying on in the vat B will flow over the through shute
in a similar manner into the vat A, and there act upon the pipes through which
the hottest wort is passing, the heated water ultimately discharging itself by a
waste pipe near the top of the vat A. Though I have described sixteen pipes
branching off from a main trunk, yet I do not intend to limit myself to that
particular number; and though I have proposed to coil these pipes in five
circles, one within the other, I do not intend to confine myself to that particular
disposition of the pipes; and though I have exhibited two series of refri-
gerating pipes, yet one series may sometimes be found to be sufficient; in
that case the upper half of the pipes being of the larger diameter. Or, under
circumstances three or more series of pipes combined may be advantageous;
all of which variations of the same principle I claim.
And, lastly, I wish it to be understood that I do not confine myself precisely
to the form or disposition of any of the parts shewn or described in this my
Specification, as my Invention consists generally and particularly in the con-
struction and employment of an apparatus consisting of several smaller pipes
branching or issuing from a large or main trunk coiled in several coils one
within the other, these being surrounded with water at a low temperature,
and through which brewers' wort or other liquors requiring to be speedily
cooled without evaporation may be passed and refrigerated as above said.
In witness whereof, I, the said William Bundy, have hereunto set my
hand and seal, this First day of May, in the year of our Lord One
thousand eight hundred and twenty-four.
WILLIAM (L.S.)
(L.S.) BUNDY.

page_text: AND BE IT REMEMBERED, that on the First day of May, in the
year of our Lord 1824, the aforesaid William Bundy 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 First day of May, in the year of our Lord One thousand
eight hundred and twenty-four.