ICE-HOUSES. 



335 



considerably to the rear (figure 68), and a metal gutter 

 should be provided to catch the water of condensation 

 which will gather on the roof, and this should be carried 

 off outside through a pipe having an m trap in it to 

 prevent air passing in. This arrangement provides in 

 every way for economizing the ice and utilizing the water 

 which wastes from it. It would be necessary to provide 

 stoppers for the pipes, to regulate the flow of cold air 

 and prevent a larger consumption of ice than is neces- 



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Fig. 67. — ELEVATION OF ICE-HOUSE. 



Fig. 68.— COLD CLOSET. 



sary ; and also to use but one pipe at a time, leaving 

 the other for use when the ice which supplies one is 

 exhausted. ■ 



The cold storage houses for use in a larger way, as for 

 large creameries, cheese factories, or for dealers in dairy 

 goods, are oonstructed upon the simple princii^le of an 

 ice-house without any packing around the ice, but with 

 a water-tight and well-drained floor over a lower apart- 

 ment. There is a space of a few inches left between the 

 body of ice and the wall, through which air may circulate 

 and pass down to the room below. A number of holes 

 or gratings are made in the floor for the cold air to 

 descend. The house is built with non-conducting walls, 

 having usually a space of a- foot between them packed 



