Improved Apparatus for Cooling Water and other Liquids and Solids.
Year: 1896

page_text: Date of Application, 17th June, 1896-Accepted, 29th Aug., 1896
COMPLETE SPECIFICATION.
Improved Apparatus for Cooling Water and other Liquids and
Solids.
I, AUGUST GEORG HEINRICH LUDERITZ of 41 Lubeckstrasse, Hamburg
Germany, Merchant, do hereby declare the nature of my said invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
The object of this invention is a cooling apparatus more particularly destined
for use in tropical countries and two forms of which are shown in the accompanying
drawings wherein
Figure 1 is a view of the first arrangement
Figure 2 a similar view of the second modification and
Figure 3 a detail of the latter.
The apparatus consists chiefly of a vessel a of thick woven material or of hempen,
Haxen and other similar stuff or fabric which is provided at the top and sewn side
with a hook b whereby it can be suspended to a bough or other suitable projecting
part while a cylinder or mouthpiece c of corresponding form and of glass is closed
by a glass stopper or inlet valve d and allows the vessel to be readily filled. On
one side of the vessel is fixed an outlet tap e arranged at a height of about
5 centimeters from the bottom of the vessel and carrying a suspension handle
holder or frame f which receives the glass requiring to be filled so as to leave both
hands free to attend to the tap. This tap is at a height of about 5 centimeters
from the bottom of the vessel, so that the impurities of the water may separate and
fall by gravity to the bottom allowing clear water only to run out. Instead of this
tape near the bottom of the vessel two or more taps may be used at different
heights in order to facilitate the cleaning of the whole apparatus so that all firmly
adhering muddy or slimy particles may be readily removed. The fabric of which
the whole apparatus consists is sufficiently light in weight to be readily transportable,
it is moreover distinguished from the earthenware coolers generally in use owing
to its not being breakable and fulfils to a higher degree than the unglazed or
porous earthenware generally used in Spain under the name of "Alkarazzas" the
object in view that is to say the evaporation on account of the high outer temperature
of the water percolating through the vessel the necessary heat for this evaporation
being drawn from the liquid inside which becomes accordingly cooled.
Figure 2 shows a similar vessel about 33 centimeters high and 10 centimeters
wide of cylindrical shape, on the bottom whereof is placed a readily removable
disc g of enamelled sheet metal (Figure 3) in order to impart stability to the whole,
while the upper part of the cylinder is consolidated by a likewise enamelled metal
ring ½ to which several hooks and chains are fixed in order to enable the vessel to
be conveniently suspended. This form of vessel is particularly designed to cool
various bottled liquids or to prevent them from fermenting. The liquids or solid
substances (butter &c.) to be cooled are placed in bottles or boxes within the cooling
apparatus filled with water a weight being placed thereon in case it was required
to prevent them from swimming round. The higher the temperature the greater
the efficiency of the apparatus this efficiency being due to the rapid evaporation
which takes place on the outer wall of the vessel. When the latter is suspended in
the air, each air draught or current will promote the further formation of steam
and hence will heighten and hasten the action of the apparatus.
The above mentioned advantages, cheapness indestructability and lightness will
cause this improved apparatus to be generally utilized.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is :-
A device or apparatus for cooling liquids or solid substances made of thick woven
material or fabric and having an inlet opening c and an outlet tape or one or more
valves d for the purpose of providing an unbreakable cooler as light in weight as
possible whereby in consequence of the evaporation of the percolating water, a
highly cooling action takes place ou the liquid inside the vessel or receptacle.
Dated this 16th day of June 1896.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicant.