IMPROVEMENTS IN APPARATUS FOR COOLING. MILK AND OTHER LIQUIDS
Year: 1879

page_text: LETTERS PATENT to Joseph Walter Sutton, of High Holborn, in the County
of Middlesex, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
COOLING. MILK AND OTHER LIQUIDS."
Sealed the 16th March 1880, and dated the 18th September 1879.
PROVISIONAL SPECIFICATION left by the said Joseph Walter Sutton at the
Office of the Commissioners of Patents on the 18th September 1879.
JOSEPH WALTER SUTTON, of High Holborn, in the County of Middlesex.
"IMPROVEMENTS IN APPARATUS FOR COOLING MILK AND OTHER LIQUIDS."
This Invention has for its object improvements in apparatus for cooling milk and
other liquids.
In cooling liquids, and especially milk, it is often desirable for the purposes of
travelling and of cleaning to be able to remove the vessel containing the liquid to
be cooled without removing the cooling apparatus; for example, it is often desirable
that milk should be cooled in the ordinary cans in which it is transported, and
also when dealing with milk the cans ought to be frequently scalded, and it is very
inconvenient to be obliged to scald the whole apparatus.
My improved apparatus is so constructed that the vessel for containing the
liquid to be cooled is entirely separate from the cooling part of the apparatus.
My apparatus consists of two cylindrical or other shaped vessels, one for
containing the liquid to be cooled, the other for containing the ice or other cold
producing matter.
Through or round the vessel containing the cooling matter passes a pipe whose
ends are connected by unions and cocks to the upper and lower parts of the other
.vessel.
When the two vessels are connected together by the unions, and the cocks
opened, the liquid contained in the pipe through the ice becomes cooled, and being
therefore of greater specific gravity than the rest of the fluid tends to fall, and so
passes out at the lower end of the pipe into the bottom of the vessel containing the
fluid to be cooled, and its place is taken by fluid from the top, and thus the whole
of the liquid is gradually cooled by circulating through the pipe of the cooling
vessel.
When it is desired to remove the vessel containing the now cooled liquid, and
replace it by another vessel it is only necessary to turn off the cocks and unscrew
the unions.
,

page_text: can be readily separated. In this form of the apparatus the vessel a is not intended
to contain the milk during carriage from place to place, consequently the taps on
either side of the joints are dispensed with, and the parts are only disconnected
when empty. The wheel b is provided with a churn dasher which in some cases
may be employed for agitating the cooling materials, it also renders the vessel b
available for use as a churn. fis a light metal cylinder which can be clamped by a
screw in any position upon a rod g, it serves when milk is drawn out from the vessel
a to raise the level again to a point above the upper passage by which the circulation
is maintained. The adjustment in level is effected by unclamping the cylinder
from the rod, and lowering it until the upper passage is completely covered. The
cylinder is then again secured to the rod by the clamping screw as before.
Having thus described the nature of my said Invention, and the manner of
performing the same, I would have it understood that I claim, the construction of
apparatus for cooling milk and other liquids with the storing vessel readily separable
from the vessel containing the ice or cooling matter, substantially as herein
described.
I also claim the apparatus substantially as described for cooling milk and other
liquids, in which the liquid to be cooled is caused to circulate and flow into and
from a containing vessel by apertures at the bottom and top respectively, such
circulation and flow being maintained by the change in the density of the liquid
caused by cooling it experiences on being brought into contact with the exterior of
a vessel containing ice or other cooling matter.
In witness whereof, I, the said Joseph Walter Sutton, have hereunto set my
hand and seal, this Seventeenth day of March, in the year of our Lord
One thousand eight hundred and eighty.