There are several plans by which these general features are observed, in the construction of cold storage houses, some of which have been made the subject matter of patents. The plans shown in the illustrations embrace the essential features of good cold storage construction. These plans do not conflict with any patented devices, and will prove adequate for all practical purposes.
FIG. 68. SECTION OF HOUSE.
FIG. 69. SECTION OF WALL.
PRINCIPLES OF COLD STORAGE CONSTRUCTION.
The General Arrangement of Cold Storage Houses may be, as shown in the illustrations, Figures [67]–[70], for any size. Large houses require a girder and posts under the center of the ice floor, and the air flues are best made double; one set at each side, with a drain on each side of the girder along the center of the room. The construction of the walls vary. Walls filled with sawdust, charcoal, tan bark or other non-conducting materials, have been in use for many years. Carefully conducted tests, however, have conclusively proved that a wall of this description is inferior to a wall which contains dead air spaces, felt or paper linings, a section packed with mineral wool and an outer circulating air space.
FIG. 70. EXTERIOR VIEW OF COLD STORAGE HOUSE.
FIG. 71. SECTION VIEW OF COMBINED ICE HOUSE AND DAIRY.