CITY MILK PLANTS.' CONSTRUCTION AND ARRANGEMENT. 



25 



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. 



BOIL6R. 



ROOM 



r.o on 

 12'x a' 



AvOfj>wr/e 



WASH R-OOAA 

 16' x 20' 





COLD 



JTORAGE 

 ROOM 

 12' x 12' 



A 



opfice- 



AND 

 SALES K.OOM 

 12' x |6 ' 



~i 





i6' x -za' 



V 



iy/ve J7//V7V/VG 





Pig. 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 refrigeration. 



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 liable 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 



