Apparatus for Cooling Liquids.
Year: 1892

page_text: Date of Application, 29th July, 1892
Complete Specification Left, 29th Apr., 1893-Accepted, 2nd June, 1893
PROVISIONAL SPECIFICATION.
Apparatus for Cooling Liquids.
We, WALTER HENRY WEBB, of 59, Baliol Road, Bootle, and JOHN
SIDDELEY, of 59, Commercial Road, Liverpool, both in the County of Lancaster,
Engineers, do hereby declare the nature of this invention to be as follows:-
This invention has reference to apparatus for cooling liquids, and is more
especially applicable to the cooling of such liquids as require the surfaces over
which they flow to be capable of being cleaned with ease and thoroughness, such
for instance as milk or cream, and other liquids where cleanliness is highly
important.
The apparatus according to this invention comprises corrugated side walls or
surfaces over which the liquid is distributed and falls; a containing vessel at
the top having apertures in its bottom which distributes the liquid to be cooled
onto the cooling surfaces; zig-zag or other conduits or pipes disposed within
the corrugated cooling sides of the apparatus; and a non-freezing liquid, such
as brine, surrounding said tubes and filling the space within the side corrugated
walls, the tubes being adapted to have circulated or passed through them a
suitable cooling fluid, to which the heat of the milk or the other liquid passes
by way of the surrounding liquid, namely the brine or its equivalent.
A fluid suitable for use in this apparatus, by which the cooling is effected, is
ammonia, which is expanded in the tubes but any other suitable cooling fluid
may be used.
One particular form of our improved apparatus particularly applicable for
cooling milk and cream consists of a double corrugated vertical plates forming
the cooling surface; end plates with recesses therein to receive and hold, by
soldering or equivalent means, the corrugated plates; an upper containing and
distributing trough or vessel with apertures at each side to distribute the liquid
onto both cooling plates; a base supporting or having connected with it suitable
troughs or gutters to receive the cooled milk or liquid and suitable plates to convey
the milk or other liquid from the cooling surface into the said gutters or troughs;
zig-zag or return pipes within the space enclosed by the cooling plates and through
which the cooling fluid is passed; and a pedestal supporting the whole structure
and through which the said pipes are passed.
The above example comprises all the main parts of the particular apparatus
described, but all these parts are not necessarily used in all cases.
Moreover they may be modified as to detail and arrangement, as may be deemed
desirable; and also to suit different applications of the invention.
Dated this 28th day of July 1892
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicants' Patent Agents.
COMPLETE SPECIFICATION.
Apparatus for Cooling Liquids.
We, WALTER HENRY WEBB, of 59, Baliol Road, Bootle, and JOHN
SIDDELEY, of 59, Commercial Road, Liverpool, both in the County of Lancaster,
Engineers, 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 has reference to apparatus for cooling liquids, and is more

page_text: especially applicable to the cooling of such liquids as require the surfaces over
which they flow to be capable of being cleaned with ease and thoroughness, such
for instance as milk or cream, and other liquids where cleanliness is highly
important.
The apparatus according to this invention comprises side walls or surfaces over
which the liquid is distributed and falls; a containing vessel at the top having
apertures in its bottom which distributes the liquid to be cooled onto the cooling
surfaces zig-zag or other conduits or pipes disposed within the cooling sides of
the apparatus and a non-freezing liquid, such as brine, surrounding said tubes
and filling the space within the side walls, the tubes being adapted to have
circulated or passed through them a suitable cooling fluid, to which the heat of the
milk or other liquid passes by way of the surrounding liquid, namely, the brine or
its equivalent.
A fluid suitable for use in this apparatus, by which the cooling is effected, is
ammonia, which is expanded in the tubes: but any other suitable cooling fluid may
be used.
One particular form of our improved apparatus, particularly applicable for
cooling milk and cream, consists of double corrugated vertical plates forming the
cooling surface; end plates with recesses therein to receive and hold, by soldering
or equivalent means, the corrugated plates; an upper containing and distributing
trough or vessel with apertures at each side to distribute the liquid onto both
cooling plates; a base supporting or having connected with it suitable troughs or
gutters to receive the cooled milk or liquid, and suitable plates to convey the milk
or other liquid from the cooling surface into the said gutters or troughs; zig-zag or
return pipes within the space enclosed by the cocling plates, and through which
the cooling fluid is passed; and a pedestal supporting the whole structure and
through which the said pipes are passed.
The form of apparatus just described is illustrated in the drawing hereto annexed
as an example of apparatus constructed and operating according to this invention,
Figure 1 being a cross section thereof, and Figure 2 a sectional elevation.
Referring to this drawing, aa are the double vertical plates corrugated trans-
versely, and forming the surface on and by which the milk (or other liquid) is
cooled are the end plates, with recesses at cast in them, in which the edges
of the plates aa fit, and wherein they are fixed, by soldering or equivalent means
to said end plates the recesses being completely filled with solder or the like; c is
the base-plate forming the bottom of the apparatus and supporting the upper part
of the structure, and resting itself upon feet c d is a flange, brazed, soldered, or
otherwise suitably fixed, to the plates aa and plates bb, by which the structure is
secured, by bolting or other means, onto the baseplate c; e are the pipes or coils
(which, as will be seen, are in duplicate and in zig-zag form) by which the cooling
medium or fluid, say expanded ammonia, or other cooling fluid, is conveyed or
circulated through the apparatus, the said pipe passing into the apparatus and out
of it, through the base-plate c, to which they are fixed. is the distributing tank
or vessel at the top of the apparatus into which the milk (or other liquid) to be
cooled is charged, it being distributed from same from apertures at onto the
upper inclined parts a', of the cooling plates a; whilst is a trough by which
cooled milk or other liquid is conveyed away from the apparatus, one arm of the
trough coming on each side of the apparatus, and the milk or liquid being conducted
into the trough by inclined plates a², fixed to the lower part of the cooling plates a.
The plates a are brazed or otherwise suitably fixed together at their upper
ends at a³.
The space enclosed by the plates aa, end plates bb, and the base c, is filled with
brine or other suitable liquid which freezes or solidifies at a low temperature, and
surrounds the pipes e.
In operation, assuming expanded ammonia or other suitable fluid at a low
temperature to be being passed or circulated through the pipes e, and the liquid
filling the space within the cooling plates a at the required temperature, that is, at

page_text: a temperature below the point to which it is desired to reduce the temperature of
the milk (or other liquid), the milk (or other liquid) to be cooled is charged into
the distributing vessel, and passing out of it by the apertures at ", is distributed
over the upper part of the surface of the plates a a, and then flows down over the
transversely corrugated surface of such plates, and finally being caught by the
inclined plates a², is discharged into the trough h, it being cooled or refrigerated
to the desired extent in its passage down said plates. The heat extracted from
the milk (or other liquid) is carried away by the cold ammonia (or other cold fluid)
in the pipes e, it being conducted and transferred thereto from the plates aa,
through the brine or other intermediate liquid within the space or chamber enclosed
by said plates, and surrounding said pipes."
It will be seen all the surfaces of the parts in contact with which the milk (or
other liquid) comes is thoroughly accessible, and there are no corners or recesses
difficult of access to; thus all the said surface, at all points, is easily cleansed and
kept clean.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, it is to be stated that this
invention is not strictly confined to the particular form or apparatus shewn by the
example given in the drawing, but may take different forms as regards disposition
of its parts, and the structure as a whole and also as regards the construction of
its parts; but what is claimed in respect of the herein described invention is:-
:
1. Apparatus for cooling milk or cream (or other liquid), comprising cooling
surfaces consisting of plates over which the milk or cream (or other liquid) flows,
and constituting an enclosed chamber or space within them; and pipes arranged in
or passing through said space or chamber, and through which the cooling gas or
other fluid is passed; the space or chamber within said cooling plates being filled
with a suitable liquid which surrounds said pipes, and conducts the heat from said
plates to said pipes and the cooling fluid within them; substantially as and for the
purposes set forth.
2. The apparatus for cooling milk and cream (or other liquids) consisting of the
corrugated plates a a, end plates bb, and the cooling pipes e, and the other parts
constituting accessories thereto, constructed, arranged, and adapted to operate
particularly as set forth with reference to the drawings.
Dated this 24th day of April 1893.
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicants' Patent Agents.