Improvements in Apparatus for Promoting Circulation and Aeration of Brewers' Wort.
Year: 1889

page_text: Date of Application, 4th Feb., 1889
Complete Specification Leit, 4th Nov., 1889-Accepted. 7th Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Promoting Circulation and
Aeration of Brewers' Wort.
We, GEORGE GORDON CAVE, of Fenny Stratfor I in the county of Bucks, brewer,
and JAMES HENRY HOWELL, of Castle Green in the city and county of Bristol,
brewers' engineer, do hereby declare the nature of this invention to be as follows:-
This invention which relates to means for facilitating the circulation and aëration
of wort in the process of brewing beor, porter and other like malt liquors, has
reference to the stage at which the wrt is heated or boiled.
According to this invention two vessols are employe 1 in boiling the wort.
Under one arrangement two steam boiling coppers of the usual kind are used and
these are surmounted by a curb or pan which extends over both vessels.
Towards the bottom the vessels communicate with each other by a pipe in which
is a cock to control the communication.
Each copper communicatos independently with a steam boiler.
The wort in one of the vessels is raised to a higher temperature than that contained
in the other and as, in boiling, the wort overflows the lip or edge of the former,
it is conducted by the curb or pan to the latter whence it, in due course, passes
back by the pipe aforesaid to the more highly heated vessel.
Thus a constant circulation of the wort is maintained and more uniform and
complete aëration and boiling are obtained.
Instead of using two coppers, as above described, one copper only may be
employed and used as the high pressure vessel.
For the low pressure vessel a tubular or other conveniently shaped vat or other
vessel of copper may be adopted and, in this case, the latter vessel is preferably
steam jacketted in order to maintain the requiste degree of heat therein for the
efficient carrying out of the process.
1000
COMPLETE SPECIFICATION.
Improvements in Apparatus for Promoting Circulation and
Aeration of Brewers' Wort.
We, GEORGE GORDON (AVE, of Fenny Stratford, in the county of Bucks, brewer,
and JAMES HENRY HOWELL, of Castle Green, in the city and county of Bristol,
brewers' 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 :-
This invention, which relates to means for facilitating the circulation and aëration
of wort in the process of brewing beer, porter and other like malt liquors, has
reference to the stage at which the wort is heateri or boiled.
According to this invention two vessels are employed in boiling the wort. Under
one arrangement two steam boiling coppers of the usual kind are used and these are
surmounted by a curb or pan which extends over both vessels. Towards the bottom
the vessels communicate with each other by a syphon in which is a cock to control
the communication.
Each copper communicates independently with a steam boiler, or the steam may be
supplied from the boiler to one copper and be conducted thence by a pipe to the other.
The wort in one of the vessels is raised to a higher temperature than that contained in
the other and as, in boiling, the wort overflows the lip or edge of the former, it is
Damen Hd 7.

page_text: conducted by the curb or pan to the latter whence it in due course passes back by the
pipe aforesaid to the more highly heated vessel. Thus a constant circulation of the
wort is maintained and more uniform and complete aëration and boiling are obtained.
Instead of using two coppers, as above described, one copper only may be employed
and used as the high pressure vessel. For the low pressure vessel a conveniently
shaped vat or other vessel of copper or other suitable material may be adopted and
may or may not be steam jacketted.
Fig. 1 of the accompanying drawings illustrates, partly in elevation_uud partly in
vertical section, one method of carrying this invention into effect. Fig. 2 is a part
plan.
In this arrangement two steam-boiling coppers a and are employed for boiling
the wort. They are surmounted by the curb or pane extending over both coppers.
The coppers a and communicate with each other by the pipe d in which is a cock e
governing the communication. This cock may, if desired, bo dispensed with. The
steam for heating the wort contained in the vessels a and is admitted by pipes
commucted to the jackets a and b, which are fitted with the usual steam and co denso
cocks. The wort is discharged from the coppers through the valves r, . The wort
in one of the vessels, for example, in a, is raised to a higher temperature to that in b
and ns, in boiling, the wort overflows the edge or lip of the copper, it is conducted by
the curbe to the vessel into which it flows. Thence it passes back by the pipe d
into the more highly heated vessel and thus a constant circulation of the wort is
maintained. The wort is, in consequence, more uniformly and thoroughly boiled and
nërated.
The pipe in which is a valve p serves as a means of conducting the wort from
the high pressure vessel into the low pressure vessel at such times as the wort has
heen cooked to a degree at which it does not rise to the level of the top of the coppers
or hottom of the curb.
At Fig. 3 is illustrated, partly in olovation and partly in vertical section, a
modification under which one steam boiling copper g only is employed, the second
vessel å being a vat which may be of any convenient shape. Fig. 4 is a plan of
Fig. 3. The copper and the vat are surmounted by the curb e by which the wort
overflowing the copper in the process of boiling is conducted to the vat. Thence the
wort passes back into the copper y by the pipe d.
Thus a constant circulation is maintained.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
alaim is :-
1. In the process of boiling brewers' wort, the employment therefor of two
boiling coppers communicating at the top by a curb or pan, and below by a syphon,
so that when the wort in one of the vessels is raised to a higher temperature than
in the other it flows, when boiling over, by the curb into the cooler vessel and
returns thence by the syphon to the more highly heating vessel, substantially as
hereinbefore described.
2. The provision of a pipe such as p, with valve », placed at a suitable distance
below the top of the coppers and affording a means of communication between the
coppers for promoting circulation when the wort is "cooked" to such a degree that it
does not overflow the high pressure copper, subst intially as heroinbofore described.
3. In the process of boiling brewers' wort, the employment therefor of a steam
boiling copper communicating at the top by a pan or curb with a vessel not heated
for boiling and from which latter the wort is returned by a pipe to the boiling copper,
substantially as hereinbefore described with reference to Figs. 3 and 4 of the accom-
panying drawings.
Dated this 1st day of November 1889
NICHOLAS WATTS,
Applicants' Agent.