Improvements in Apparatus for Cooling Milk or other Liquids.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Cooling Milk or other Liquids.
I, WALTER LONGLEY BOURKE, of The Old Hall, Worsley, in the County of
Lancaster, Civil Engineer, do hereby declare the nature of this invention to be
as follows:-
This invention relates primarily to a cooler for milk but may be applied to
other liquors.
In coolers as hitherto constructed the milk has been exposed to the air in a
thin layer or stream as it passed over the apparatus thus rendering it liable to
contamination from impure atmosphere or by bacteria and other germs contained
therein.
My invention is designed to provide a cooler in which the milk will be treated
without being exposed or brought into contact with the atmosphere.
It consists essentially of a hollow vessel or container of cylindrical or other
convenient or suitable shape formed of two parts one fitting or sliding inside the
other with a space between the two to form a chamber for the milk and pro-
vided with perforated pipes or tubes through which sprays or jets of water are
continuously caused to play upon the exterior and interior surfaces of the
apparatus.
In carrying out the invention I construct two cylinders (or other shaped vessels)
of sheet metal one of a larger diameter than the other. These at the ends are
fitted with strong hoops or rings of cast metal or other material and provided
with a packing of rubber or other suitable material to form a tight joint and a
screw or other device for holding them tightly in position. The smaller vessel
is inserted into the interior of the larger one forming a chamber between them
through which the milk can flow in a thin stream.
One or both of the vessels may be corrugated or fluted if desired either longi-
tudinally annularly, or spirally to present a greater surface, and, if found
desirable, blades or plates or the spiral corrugations may be employed to direct
the flow of the milk or other liquor.
Delivery and discharge pipes of suitable dimensions to carry the milk to and
from the apparatus are attached to the outer cylinder.
Perforated pipes are carried in any suitable position to direct a spray of water
over the exterior and interior surfaces of the apparatus to absorb and convey
away the heat from the milk in the interior chamber. Or the interior of the
smaller cylinder may be closed and filled with ice or with a freezing mixture, to
reduce the temperature to the desired degree.
Doted this fith dot of Anril 1898

page_text: -སམས.
I, WALTER LONGLEY BOURKE, of The Old Hall, Worsley, in the County of
Lancaster, Civil Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement; -
This invention relates primarily to a cooler for milk but may be applied to
other liquors.
In coolers as hitherto constructed the milk has been exposed to the air in a
thin layer or stream as it passed over the apparatus thus rendering it liable to
contamination from impure atmosphere or by bacteria and other germs contained
therein.'
My invention is designed to provide a cooler in which the milk will be treated
without being exposed or brought into contact with the atmosphere.
It consists essentially of a hollow vessel or container of cylindrical or other
convenient or suitable shape formed of two parts one fitting or sliding inside the
other with a space between the two to form a chamber for the milk and pro-
vided with perforated pipes or tubes through which sprays or jets of water are
continuously caused to play upon the exterior and interior surfaces of the
apparatus.
It will be fully described with reference to the accompanying drawings:-
Fig. 1. Longitudinal section.
Fig. 2. End elevation.
Fig. 3. End elevation (opposite end).
Fig. 4. Plan of end fastening.
Fig. 5. Sectional elevation of vertical type of apparatus.
I construct two vessels A and B of cylindrical (or other shape) of sheet metal
the vessel A being of somewhat larger diameter than the vessel B. The vessel B
is fitted inside the vessel A. forming between the two a narrow chamber or com-
partment D through which the milk or other liquid to be cooled flows.
The ends of the vessels A and B are at the ends fitted with strong rings or
hoops E and F of cast metal or other material. As at present constructed it is
preferred to attach the hoop or ring E to the outer or larger vessel A and the
hoop or ring F to the inner vessel B. The hoops or rings E and F may however
be loose or detachable if desired.
The end rings are provided with a packing e of rubber or other suitable
material to form a tight joint at the ends of the vessels.
The smaller vessel B is inserted into the interior of the larger one A the cham-
ber D being formed between them for the milk and they are held together by the
cross bar G fitting into slots g' in lugs g attached to the outer one through which
a screw H passes the point bearing against a cross bar h attached to the inner
vessel or by other equivalent device. Where the end rings are loose or detach-
able a stay rod or bolt is passed through the inner vessel from one end to the
other and the two rings are drawn together and clamped onto the ends of the
vessels by a screw or equivalent device.
On the periphery of the inner vessel B may be placed a spiral projection or
wire K of a thickness nearly equal to the width of the chamber D to direct the
flow of the milk or other liquid through it.
One or both of the vessels may be corrugated or fluted if desired either longi-
tudinally, annularly, or spirally to present a greater surface, and, if found

page_text: desirable, blades or plates or the spiral corrugations may be employed to direct
the flow of the milk or other liquor.
An inlet or delivery pipe L is fitted near the bottom of the apparatus through
which the milk or liquid flows into the chamber D and an outlet or discharge
pipe M is fitted near the top to draw off the milk or other liquid when cooled.
Perforated pipes N and N are placed at the exterior and interior in any suitable
position to direct a spray of water over the exterior and interior surfaces of the
apparatus to absorb and convey away the heat from the milk or liquid in the
interior chamber D. Or the interior of the smaller cylinder may be closed and
filled with ice or with a freezing mixture to reduce the temperature of the milk
or liquid to the desired degree.
The apparatus may be arranged with the cylinders horizontal as in Fig. 1 or
with the cylinders vertical as in Fig. 5, or if found convenient the apparatus may
be set at any desired inclination.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:
1. Apparatus for cooling milk or other liquids constructed with two vessels one
placed inside the other forming, a chamber between their walls through which
the milk or liquid is passed substantially as described.
2. In apparatus for cooling milk or liquids the combination of the two cylin-
ders A and B fitting one inside the other forming a chamber D between them,
inlet and outlet pipes L and M and perforated water pipes N N' substantially as
described and shown.
3. Apparatus for cooling milk or liquids having the several parts constructed
and arranged in combination substantially as described and shown.
Dated this 4th day 01 January 100
WM. P. THOMPSON & Co.,
Manchester, Liverpool, & London, Patent Agents.