Improvements in Cooling Liquids, and Apparatus connected therewith.
Year: 1895

page_text: Date of Application, 22nd Oct., 1895
Complete Specification Left, 22nd July, 1896-Accepted, 22nd Aug., 1896
THUY LIONAL BOITUIFICATIO..
Improvements in Cooling Liquids, and Apparatus connected
therewith.
We, WALTER THOMAS RAMSDEN of 177 Kingsland Road in the County of
Middlesex and ANTHONY GAPPER SOUTH BY of 96 Chestnut Avenue, Forest
Gate in the County of Essex, do hereby declare the nature of this invention to be
as follows
-
Our invention relates to the well known process of cooling liquids such as
water, or aqueous solutions such as wort, by exposing them in extended surfaces
to currents of air; but hitherto this process has not been carried out to the best
advantage.
Our improvements consist in exposing the warm or hot liquids in the' form
of a shower or fine streams or spray falling in a vessel to a current of air drawn
or forced through the vessel in the opposite direction to that of the falling
spray.
We proportion the amount of air that we pass up through the vessel to that of
the liquid falling in the shower down through the vessel so that it has considerably
more capacity for heat than the liquid.
The air then carries off the heat of the liquid partly as seusible heat & partly as
latent heat vapour combined with the air heated by contact with the liquid in the
lower parts of the vessel & the streams are collected at the bottom of the vessel
at a temperature little above that of the incoming an.
We draw or force the air through the vessel by any convenient means such
as by an air propeller or an exhauster or draw it by steam Jet or in the case
of hot liquids by the natural draught produced by the heated air from the
vessel sing in a chimney & we pass the current of air through the vessel
at as high a speed as will not injuriously carry off the finer particles of the
shower.
We turn the liquid into streams or spray by any well known apparatus as for
instance by Handford's atomizer or by pouring it into a perforated tray or trays
& we may place perforated trays one above another so that the liquid falling in a
shower from the upper tiay may be caught in the lower one, the trays being
arranged in the vessel so that the air may pass through the shower or showers
falling from one'tray to another in succession as it rises in the vessel.
We sometimes filter or wash the air before bringing it in contact with the liquid
in the vessel.

page_text: Improvements in Cooling, Liquids and Apparatus connected
therewith.
WALTER THOMAS RAMSDEN of 177 Kingsland Road in the County of
Middlesex Brewers' Engineer ANTHONY GAPPER SOUTHBY of 96 Chestnut
Avenue Forest Gate in the County of Essex Civil Engineer do hereby declare
the nature of this invention and in what manner the same 18 to be performed,
to be particularly described and ascertained in and by the following statement :-
Qur invention relates to the well known process of cooling liquids such as
water or aqueous solutions such as wort by exposing them in extended surfaces
to currents of air but hither to this process has not been carried out to the best
advantage.
Our improvements consist in exposing the warm or hot liquids in the form of
a shower of fine streams or spray falling in a vessel to a current of au drawn
o forced through the vessel in the opposite direction to that of the falling
shower.
We proportion the amount of air that we pass through the vessel to that of the
liquid falling through the vessel so that it has considerably more capacity for
carrying away the heat than that contained by the liquid The au then carries
off the heat of the liquid partly as sensible heat and partly as latent heat in the
vapour combined with the air heated by contact with the liquid in the lower parts
of the vessel and the streams of liquid are collected at the bottom of the vessel
at a temperature little above that of the incoming an and is then drawn
away to be used for whatever purposes it is required on to be further cooled by
other means.
We fix in the vessel a series of trays made of any suitable material such as
wood non or copper reaching beyond the centre of the vessel but leaving sufficient
space for the passage of the au between its inner side and the side of the vessel
and arranged in a zigzag one over the other so that they overlap one another and
so that the air has to pass backwards and forwards between them and we pierce
the overlapping portions of the trays with very fine holes so that the liquid poured
into the top tray may fall from tray to tiay in fine sticams or spray at a com-
paratively slow speed of falling owing to the short fall in each case and so that the
air may pass between the streams and absorb the heat and vapour.
We diaw of force the a through the vessel by any suitable means such as by
a Blackman fan or a centilugal blower or au asperator or in the case of bot
liquids by the natural diaught produced by the hot air and vapour in a chimney
formed on top of the vessel.
We prefer to pass the air through the vessel at as high a speed as will not
injuriously carry off particles of the liquid.
We may extend the vessel upwards and spray the hot liquid into the top tray
by means of an attomise from as great a height as convenient.
The vessel may in plan be of any convenient form such as rectangular, or round and
it should be provided with hand holes at the sides opposite the rows of perforations
in the trays for keeping the perforations clear the hand holes being stopped by
plugs or otherwise
of
We prefer to cone the perforations downwards or to make them at the bottom
grooves or furrows so as to prevent the streams from running together.
The number of trays may vary with the temperature of the liquid that is to be
cooled that shown in the drawings will answer well for ordinary requirements.

page_text: The smaller the holes are of course the more effective 26th inch diameter will
answer well.
We sometimes filtie o wash the air before admitting it to the vessel so as to
lemove jerms and dust
The accompanying drawings show a geod form of our apparatus Fig. 1 being a
sectional elevation across the trays and Fig. 2 a sectional elevation through A B
Fig 1.
c is the air
a a is the vessel rectangular in plan and bbbate the series of trays.
propellor drawing an through the apparatus from the inlet opening d which may
connect with a passage from an air filtie or washer or from where the nu is coolest
and purest.
e is the exit for the heated an and vapour this exit may connect with
a chimney or passage upwards which when of considerable height and with hot"
liquid entering the apparatus will enable the air propellor to be dispensed with.
g is the pipe for the hot liquid and in these drawings is shown with attomizer
nozzles for spraying the liquid into the top tray the vessel being heightened for
the purposeff being the nozzles. is the exit for the cooled liquid ; are
the hand holes for cleaning the perforations and are the cones of furrows iu.
which are the perforations.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim 18
1st. Cooling liquids by currents of air forced or drawn upwards between trays
fixed in a vessel the trays overlapping one another and allowing passage for the
air backwards and forwards between then the overlapping portions of the trays
beng perforated with very small holes so that the liquid falls from one tray to the
one below in small streams or spray for the purpose herein described and shown
in the drawings.
2nd. The above combined with an upper vessel in which the liquid falls in fine
spray so as to meet the current of air from the lower vessel and be caught in the
top tray of that vessel.
3rd. The apparatus substantially as herein described and shown in the drawings.
either with or without the upper portion.
W. T. KAMSDEN.
A. GAPPER SOUTHBY.