Improvements in Apparatus for Cooling Wort.
Year: 1894

page_text: Date of Application, 20th Oct.,
1894
Complete Specification Left, 11th July, 1895-Accepted, 17th Aug.,
1895
Improvements in Apparatus for Cooling Wort.
I, FREDERICK NOEL MACKAY, of The Farringdon Works Ld., Shoe Lane, in
the County of Middlesex, Engineer, do hereby declare the nature of this invention
to be as follows:-
My invention relates to apparatus for cooling wort while exposed to the ordinary
atmosphere or to air which has been purified.
An important feature of my invention is the provision of means whereby the
cooling liquid passes through the cooling pipes in streams which frequently meet
and intermix and then separate again so that the whole bulk of the liquid is
efficiently utilized for cooling purposes.
Another important feature of my invention consists in so providing that the wort
while passing downwards over the cooling pipes is given a motion transverse to its
downward movement and is thereby more efficiently distributed over the cooling
pipes and intermixed.
A further important feature of my invention is the combination with the
aforesaid cooling pipes of an internal cooling jacket.
According to my invention the pipes through which the cooling liquid circulates
are preferably of circular or ring like form arranged in a series placed one above
the other with short spaces between them; each ring is connected at one side with
the next ring beneath it and at the other side of the apparatus with the next ring
above it. The connection is preferably made by a small H-shaped connecting-
piece or box placed on its side, the cross bar of the H piece forming the connecting
link. The said connecting pieces are furnished with removable caps to permit of
cleaning the interiors of the cooling pipes. The said pipes are soldered or
otherwise secured to an internal thin hollow cylinder or cone which is jacketed.
The cooling liquid is admitted to the jacket as well as to the pipes aforesaid. The
jacket and the topmost pipe are connected to a common outlet pipe for the cooling
liquid. This apparatus is supported on suitable supports or feet which rest in a
The said tray is provided with
shallow dish or tray that receives the cooled wort.
an overflow pipe that preserves the liquid in the tray at such a level as to form a
seal with the lower edge of the jacket. The upper part of the apparatus is fitted
with a vessel for receiving the wort to be cooled. The lip or rim of this vessel is
preferably serrated. Behind the aforesaid H-shaped pieces 1 provide recesses in
the jacket to form vertical passages to allow the wort to pass down from above one
pair of pipes to the next pair below.
The wort delivered into the top vessel or reservoir runs over the edge thereof
and trickles down the outside of the cooling jacket, and flows in succession over the
several rows of cooling pipes. Some of the wort which collects in the recesses
formed by the pipes and the jacket passes down the channels beforementioned
behind the shaped connecting pieces and thus induces a horizontal current of
wort along the tops of the cooling pipes towards said channels and in that manner
distributes the wort evenly over the whole surface of the cooling pipes and causes
it to intermix with itself. The wort finally falls into the tray which contains the
apparatus and flows out through the overflow pipe before mentioned. The cooling
liquid which enters the lowermost cooling pipe divides at once into two streams
5 which pass through the two branches of said pipe and meet at the junction at the

page_text: opposite side of the apparatus from the point of entrance. The liquid then rises
to the next pipe, divides again and passes along the two halves of this pipe in two
streams which meet again at the next connection and so on through all the rows
of pipes.
The streams which pass along the two halves of each pipe thoroughly intermix
when they arrive at each junction and so the whole of the liquid is utilized for
cooling purposes.
When I desire to cool the wort in a purified atmosphere I provide the apparatus
with an outer casing. The purified air is delivered into the interior of the
apparatus through a suitable delivery pipe; it then descends and passes through
holes near the lower edge of the jacket into the annular space between the
cooling pipes and the outer casing, and ascends said annular space and passes out
through holes provided in the removable cover of the casing. The said cover is
preferably dished to receive any froth or "fob" carried upward by the cooling air,
and to pass the same back into the apparatus through a hole in the centre of the
cover. The outer casing is provided with glazed port holes to permit of watching
the operation. The said casing is easily removable.
Dated this 20th day of October 1894.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Apparatus for Cong WOTE.
I, FREDERICK NOEL MACKAY, of The Farringdon Works Ld., Shoe Lane,
in the County of Middlesex, Engineer, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :---
My invention relates to apparatus for cooling wort while exposed to the
atmosphere or to air which has been purified.
An important feature of my invention is the combination with cooling pipes over
which the wort passes of an internal cooling jacket.
Another important feature of my invention is the provision of means whereby the
cooling liquid is caused to pass through pipes in streams which frequently meet and
intermix and then separate again so that the whole bulk of the liquid is efficiently
utilized for cooling purposes.
A further important feature of my invention consists in so providing that the
wort while passing downwards over the cooling pipes flows transversely as well as
downwardly and is thereby more efficiently distributed over the cooling pipes and
intermixed.
Referring to the accompanying drawing which illustrates a convenient form of
my improved cooling apparatus,
Figure 1 is an elevation, and
Figure 2 is a vertical central section of the said apparatus.
Figure 3 is a side elevation of the cooling apparatus with the casing removed, the
tray hereinafter described being shown in central section.
A is a shallow dish or tray for receiving the cooled wort; B is a jacketed
cylinder or cone made of thin copper by preference and containing cooling liquid
which enters through a pipe b at the bottom and passes out through a pipe b at or
near the top; the said cylinder or cone is supported by feet B' B¹ resting in the
dish or tray A. C, C are rings of pipes mounted on the exterior of the jacketed
cylinder or cone B and soldered or otherwise secured thereto; c is the inlet pipe
for the cooling liquid entering the pipes C, C; e' is the outlet pipe for the liquid

page_text: leaving said pipes. The pipe c' is shown joined to the outlet pipe 61 before-.
mentioned so that the cooling pipes and jacket have a common outlet. D is a.
vessel into which the wort to be cooled is received. The said vessel is supported
by the cylinder or cone B and fills the opening at the top thereof so that the wort
which overflows the rim of the vessel D trickles down the outside of the cylinder
or cone B and over the cooling pipes C. The rim of the vessel D may be
serrated as shown or it may be plain. E is a casing enclosing the whole of the
cooling apparatus and supported by feet El resting on the bottom of the tray A.
F is a removable lid placed on the top of the casing E. The said lid is furnished
with a downwardly extending pipe F. L is a central pipe through which the
wort is introduced into the vessel D. G is a central air-inlet pipe; b, are a
number of hules through the wall of the cylinder or cone B near the lower end
thereof, and f,f are holes in the lid F through which holes the air passing into the
apparatus through the pipe G finds an outlet.
EL
The pipes C C are arranged in a series and are placed one above the other with
spaces between them. Each ring is connected at one side of the apparatus with the
next ring beneath it and at the other side of the apparatus with the next ring above
it. The connection between each pair of rings is preferably made by a small
box H as shown in Figure 3. The said connecting boxes are furnished with
removable caps or plugs Hi to allow of cleaning the interiors of the cooling pipes.
Behind every alternate connecting box, on each side of the apparatus I provide
small recess J in the cylinder B forming a vertical passage to allow the wort to
pass down from above one pair of pipes to the next pair below; by these means
I cause a horizontal flow of the wort along the cooling pipes in addition to the
downward How over said pipes and I thus ensure that the wort shall be well
distributed over the cooling pipes. The tray A is provided with an overflow
pipe A that removes the cooled liquid while retaining sufficient liquid in the
tray to form a seal with the lower edges of the cylinder or cone B and casing E.
The wort delivered into the vessel D runs over the edge thereof and trickles
down the outside of the jacketed cooling cylinder or cone B, and flows in
succession over the several rows of cooling pipes C. Some of the wort which
collects in the angles or recesses formed by the pipes and the cylinder or cone
passes down the channels J beforementioned behind the connecting boxes H and
thus induces a horizontal current of wort along the tops of the cooling pipes
towards said channels and in that manner distributes the wort evenly over the
The cooled wort
whole surface of the cooling pipes and causes it to intermix.
finally falls into the tray A and flows out through the overflow pipe A¹. The
cooling liquid as it enters the apparatus takes two courses one through the
pipe leading to the cooling pipes and the other through the pipe b leading
to the jacket of the cylinder or cone B. The cooling liquid entering the
lowermost of the cooling pipes C through the inlet pipe c divides at once into
two streams which pass through the two branches of said lowermost pipe C
and meet at the junction or connecting box H at the opposite side of the
apparatus from the point of entrance. The liquid then rises to the next pipe
through the said connecting box, divides again and passes along the two halves
of this pipe in two streams which meet again at the next connection and so on
through all of the pipes.
The streams which pass along the two halves of each pipe thoroughly intermix
when they arrive at each junction and so the whole of the liquid is efficiently
utilized for cooling purposes.
The streams of liquid passing through the cooling pipes C and through the
jacket of the cylinder B meet again at the junction of the pipes b', c' and flow
away through the outlet pipe M.
The purified air when such is used is delivered into the interior of the apparatus
through the pipe G and descends and passes through the holes & near the lower
edge of the cylinder or cone B into the annular space between the said cylinder or
cone and the outer casing E and then ascends in said annular space and passes out

page_text: through the holes in the removable. lid or cover of the casing. The said lid or
cover is preferably dished as shown to collect any froth or "fob" carried upward
by the cooling air, which froth is passed back into the apparatus through the
pipe F. The outer casing is provided with glazed openings K to permit of
watching the operation. By this apparatus the wort is cooled and aerated at
the same time, without exposure to the atmosphere. The said casing is easily
removable, and may be taken away when the cooling is to be conducted in the
ordinary atmosphere instead of in a purified atmosphere.
Having now particularly described, and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is :-
1. The combination, with the jacketed cooling.cylinder or cone, of cooling pipes
surrounding said cylinder or cone with or without the recesses J, substantially as
described, and for the purpose specified.
2. The cooling pipes arranged in rings in combination with the connecting boxes,
substantially as, and for the purpose, specified.
3. The combination, with the apparatus covered by the first claiming clause, of
a casing enclosing said apparatus, and means whereby purified air may be passed
through the casing, substantially as described.
4. The apparatus constructed substantially as described with reference to the
drawings and operating as, and for the purpose, specified.
Dated this 10th day of July 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.