CITY MILK PLANTS: CONSTRUCTION AND ARRANGEMENT. 205 
The location of the cold-storage room depends on various con- 
siderations, but if possible it should be situated so that the milk 
can go directly into it from the bottling room. It should also 
be accessible to the delivery wagons, so that they can be easily and 
quickly loaded. To save refrigeration only a minimum wall surface 
of the refrigerator should be exposed to outside air or sun. Usually 
windows are unnecessary in the refrigerator. If there are windows 
they should have three or more thicknesses of glass with spaces be- 
tween, and the glass should be covered with white paint to exclude the 
direct rays of the sun. When not needed all artificial lights should be 
extinguished, as they increase the room temperature. 
COLD OFFICE 
BOILER 
ee STORAGE AND 
i 5 ROOM SALES ROOM 
12'x 1Z 1i2’x 6 iz' x 32! IS XG. 
BOC TLE 
WASHER 
1 SFASTE UAV ZER. 
x Xx FILLER COOLE: 
WASH ROOM l =e << 
16’ x 20! NA 
8 
Rie 
NB 
Ty 
Fig. 11.—Floor plan for a 1-story plant of about 500 gallons’ daily capacity, showing 
course of milk through plant. 
The doors of the refrigerator room should fit tightly, swing out- 
ward, and be adapted to quick handling. Doors swinging inward 
reduce the storage space considerably. A vestibule to the refriger- 
ator room, while taking up some extra space, prevents a considerable 
loss of ie cation 
ARRANGEMENT OF EQUIPMENT AND MACHINERY. 
Equipment should be arranged to permit easy cleaning. In some 
plants tanks are so placed that the man who cleans them has to 
squeeze in between the top of the tanks and the ceiling in order to 
reach them. Much time is saved by convenient arrangement and the 
cleaner will be less lable to neglect the work. 
Machinery should be placed so as to minimize labor requirements 
and to use space most economically. Another point to be considered 
in placing the machinery is the reduction to a minimum of conveyers, 
pumps, pipes, and fittings. This applies not only to milk piping but 
