Cork insulation; a complete illustrated textbook on cork insulation ...

REFRIGERATED SODA FOUNTAIN 413
and are supplied with block tin tubing for the passage of the carbonated
water through the draft arm to the head. Refrigeration loss is reduced to
a minimum by the cork <strong>insulation</strong> which is used. The soda and city water
after it leaves the coolers travels through the refrigerated syrup unit and
is connected directly to this cork insulated Guaranty draft arm. In the
design of these draft arms all sharp lines are eliminated, thus avoiding
the premature wearing of silver plating through the ordinary process of
polishing.
The soda leader pipes running from the coolers to the draft arms are
equipped with individual shut-ofif valves for each draft, thereby making it
possible to replace a tumbler or washer when necessary without turning
off the entire service supply. These valves are located at a convenient
point in the syrup unit, and are readily accessible.
Cooling System.
Soda and city water in all Guaranty interiors are cooled by what was
formerly known as the Iceless system, or since the advent of mechanical
refrigeration as the 100% method. This consists of coolers submerged in
a fresh water bath, cooled by a boiler used in connection with the refrig-
eration unit which is used to refrigerate the ice cream.
199.—COOLER AND BOILER ARRANGEMENT, 56-IN. AND 64-IN.
GUARANTY BOXES.
The refrigerator section is divided into two compartments by a semi-
insulated partition ; one for cooling soda and city water, known as the
cooler compartment ; the other provides cold storage facilities for bottled
goods, etc., known as the cold storage compartment. In the 56-inch and
64-inch tall and squat and 77-inch and 82-inch squat creamers, the coolers
arc located at the rear of the cooler compartment with the Frigidaire boiler