An Improved Cooling Apparatus for Brewing and Domestic Purposes.
Year: 1889

page_text: Date of Application, 12th Oct., 1889
Complete Specification Left, 12th July, 1890-Accepted, 20th Sept., 1890
PROVISIONAL SPECIFICATION.
An Improved Cooling Apparatus for Brewing and Domestic
Purposes.
I, CHARLES HUELSER of the Firm of Huelser & Co. of 142 Fleet Street, in the
City of London, Solicitors of Patents, do hereby declare the nature of this invention,
a communication to me from abroad by Nicolaus Reif of Wörtherstrasse No. 25,
Hannover, in the Empire of Germany, Manufacturer, to be as follows:-
This invention relates to an improved cooling apparatus for brewing and domestic
purposes and has for its object to allow the cooling process to be effected efficaciously
and with the use of less water than heretofore.
To attain this end, a cylindric mashing tub is surrounded by a cylindric porous or
permeable cooling water reservoir, the mantle, of which is corrugated or otherwise
suitably shaped for producing an increased evaporating surface.
In order to admit of a but slow penetration of the water contained between the
tub and reservoir the side or mantle of the latter is perforated, while a likewise
perforated smaller cylinder is inserted in the reservoir, and the space between
the mashing tub and reservoir is filled with wood flock or other suitable
fibrous or porous material. The cooling water reservoir is surrounded at some
Histance with a main receptacle provided with a vertical pipe or passage conveniently
communicating with a ventilator, which, through aspiration, produces a rarification of
air on the circumference of the reservoir, thus accelerating the evaporation of the
liquid penetrating through the side of the latter. The decreased temperature thereby
created acts on the material contained in the tub, thus allowing a smaller amount of
water to be employed than would be required without the use of said ventilator.
The aqueous particles removed by aspiration are pressed by the ventilator into a box,
partly recondense therein to water, which is returned through a pipe to the cooling
reservoir, while the rest of fluid particles are caused to leave the box through a broad
horizontal mouthpiece and produce, in flowing over the surface of the cooling
material contained in the mashing tub, an additional cooling effect thereon.
The improved apparatus is also applicable for domestic use i.e. for simultaneously
cooling solid meals and liquids. For this purpose, the receptacle for the meals is
surrounded at some distance by a cylindric cooling vessel made from porous clay or
other convenient substance, on the bottom and outer and inner side of which evapora-
tion is produced by causing the air to be rarefied by means of an aspirator and pipe.
The cooling vessel contains a tubular coil, through which is passed the liquid to be
cooled.
In either case the evaporated water can be replaced through a suitable pipe.

page_text: COMPLETE SPECIFICATION.
An Improved Cooling Apparatus for Brewing and Domestic
+
Purposes.
I CHARLES HUELSER of the Firm of Huelser & Co. of 142 Fleet Street, in the
City of London, Solicitors of Patents, do hereby declare the nature of this inven-
tion, a communication to me from abroad by Nicolaus Reif of Wörtherstrasse
No. 25, Hannover in the Empire of Germany, Manufacturer, and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement :-
This invention relates to the cooling appliances used more particularly for brewing
purposes and bas for its object to provide a cooling apparatus, by means of which an
energetic cooling effect is produced notwithstanding a smaller quantity of water is
required therefor than with similar apparatus hitherto known.
Referring to the accompanying drawing
Fig. 1 is a vertical section and
Fig. 2. a horizontal section along line I II Fig. 1. of the improved apparatus as
destined for brewing purposes in connection with a mashing tub.
Fig. 3 illustrates a modification of the improved apparatus as intended for domestic
use.
The mashing tub A is surrounded by the porous or permeable cooling water vessel B,
the mantle of which is corrugated or equivalently shaped for the purpose of attaining
a large evaporating surface. To allow the water contained between the tub A and
vessel B to penetrate but slowly the side of the latter, the following arrangement is
provided. The side or jacket of vessel B is perforated and a likewise perforated
narrower cylinder 6 is introduced into said vessel, the interstice between band B being
filled up with wood flock or any other suitable fibrous or porous material. The
cooling vessel B is surrounded at some distance by a receptacle C having a vertical
passage or duct c which communicates through pipe d with the ventilator D. The
latter serves to produce a partial vacuum by aspiration at the circumference of
vessel B, thereby accelerating the evaporation of the liquid passing through the
permeable side of this vessel and consequently causing a fall of temperature, which
also effects the material contained in the mashing tub A. It follows that, to decrease
the temperature, not so large a quantity of water need be supplied to the cooling
vessel B, as heretofore when the described co-operation of the ventilator was not made
use of.
The aqueous particles eliminated by aspiration through passage c and pipe dare
pressed by the ventilator into the box E and partly re-condense therein to water which
returns through pipe e' into the vessel B. The rest of the aqueous particles are
pressed out of box E through the broad horizontal mouthpiece e and flow over the
surface of the material contained in tub A thus producing an additional cooling effect
thereon.
Fig. 3 illustrates the application of the improved system for domestic purposes for
simultaneously cooling solid meals and liquids. The receptacle A for the solid meals is
surrounded at some distance by the annular cooling water vessel B made from porous
clay or similar material. On the outer and inner mantle and bottom of this vessel
evaporation takes place when the aspirator removes the air through piped and thereby
produces a rarefication of air. The cooling water vessel B contains a tubular coil or
serpentine F, through which the liquid to be cooled is caused to pass.
The evaporated water can be replaced in either case through the pipes G Figs. 1
and 3 from a water reservoir according to requirement.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1) A cooling apparatus for brewing purposes consisting of a
porous or permeable

page_text: cooling water vessel B surrounding the mashing tub, said vessel having a corrugated
or similarly shaped perforated mantle, and enclosing a perforated cylinder b, the
interstice between b and B being filled with wood flock or other fibrous or porous
material, a receptacle C surrounding the vessel B and having a vertical passage c
communicating through pipe d with a ventilator, a box E connected with the
ventilator and having a broad horizontal mouthpiece, substantially as and for the
purpose set forth.
2) A modification of the cooling apparatus referred to in claim 1, serving for
domestic purposes and consisting of a receptacle A for solid meals, cooling water
vesse! B surrounding said receptacle and containing a tubular coil or serpentine F,
the apparatus communicating through piped with an aspirator, substantially as and
for the purpose set forth.
Doted this 10th day of Tul. 1800
HUELSER & Co.,
Attorneys.