Barton County democrat. [volume] (Great Bend, Kan.) 1885-1915, 1897-11-04
FOl RAPID Co5lllI
So H3v Us FIR A. ifciai Re-
fr.gera 10 :.


fr.gera 10
Numerous special applications of
refrigeration have arisen which
would scarcely have been suspected
until small refrigerating plants were
perfected. There are many prod
ucts, such as oil and chemicals,
which are drawn very hot from the
stills and retorts, and on which the
saving of time by quick cooling
more than pays for the cost of re-
frigeration.
Among these lines of service per-
haps one of the most interesting is
that of chocolate making. Choco-
late was formerly manufactured
only in cold weather when the tenn
perature was low enough for it to
be worked and hardened
A working-room temperature of
s. degrees is sufficient for the dip
ping process and insures the setting
of the chocolate when put in the
chill-room at 45 degrees. If the
temperature be much above 60 de-
grees the. chocolate remains sticky
and plastic, which is very incon-
venient under any circums tances,
and absolutely fatal to bonbons.
Cooling coils are placed around
the room like stean-pipes, but in
addition to this, All OF even greater
Importance, air banhcrs are provid-
ed, containing ammonia coils, over
which the air is forced ana cooled
1t is then delivered to the room
through large galvanized pipes, run
ming across the ceiling, thus pro-
viding ventilation for the operatives
and the requisite GOODNESS to work
the chocolate. The chil!-room is re-
friyeratad TO Is degrees il the usual
way and opens off the dipping-room.
Another one of the many odd
uses of refrigeration Is in connec-
ton with gelatine worAi1 :. Every
one is familiar with the gelatine
capsules in which MEDICINE is ad-
ministered, and will readily under
stand that difficulty might be ex-
perienced in manufacturing such
articles in hot ana moist weather.
The capsules are formed of sheets of
gelatine pressed over steel pins.
The cooling must take place rapidly
in order to turn out the product in
sufficient quantity, while to insure
quality and general evenness of ma
terial a proper temperature must be
provided:
Ia one of these instances it was
found that about 120, 900 cubic feet
of air had to be cooled per hour in
order to insure an even temporal
ture for the gelatine, and about $780,
900 pounds of steel pins per work
ing day had to be cooled from about
80 to Is degrees, BY combining
the two requirements and making
the blast of cold air cool the pins,
both of these results were effected
through one operation, requiring
only the cooling of sufficient air in
bunkers with refrigerating coils.
Perfect success was met, and prob
ably in no other way could so use
full result have been obtained so
cheaplY.
| In the tempering of steel or the
cooling of other articles in bath of
special composition of such cost that
it cannot well be run to waste-as
oil or brine-the necessity arises of
removing the heat surrendered by
the material cooled, thus keeping a
constant temperature in the dippin G
tank. In the case of saw-temper-
ing, a large yolume Of brine is re-
frigerated and circulated through
the dipping vat. The large reserve
volume acts as a fiy-wheel, equal
ling fluctuations of temperature
arising from varying rates of dip
ping, the compressor running con-
tinuously. @. Kerr, in Casters