43. MRH13-09-Sep2013-L - page 40

Getting Real Column - 10
17: Buyers at a
wholesale produce
market, Chicago,
1952. It was these
men at whom the
label art on produce
boxes was aimed,
not housewives in
grocery stores. The
example in Figure 16
illustrates the kind of
image in question. –
courtesy CSRM.
17
Modelers sometimes depict 300-pound blocks being placed
directly in bunkers. This was not done, for two reasons. First,
the ratio of surface area to volume of the ice was not very
great, slowing melting and heat absorption. Second, such a
large weight being dropped ten feet onto the ice grates at the
bottom of the bunker would easily damage the grates.
Once the ice had been placed in the bunkers, a workman
would “bar” the ice. They would jam a long steel or wood bar
down through the mass of ice, to make sure no major void
spaces are in the ice. Obviously, void spaces were more likely in
the larger ice sizes. The process is shown in Figure 11.
Ventilation
During certain times of the year, particularly spring and fall, out-
side temperatures might not be too high. Even in summer, there
are cool spells, or shipments routed through cooler areas. In that
case, ice refrigeration might be unnecessary, although cooling
MRH-Sep 2013
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