Construction of Warm-Baths. 



m 



nace in any convenient and safe part of the house, — the 

 kitchen, scullery, servants'-hall, or wash-house may be used for 

 the purpose. The bath itself, of the usual dimensions and 

 construction, is placed where it is wanted, with a due supply of 

 cold water from above : two pipes issue from within an inch of 

 the bottom of the bath at its opposite extremities ; one at the 

 head of the bath about one inch, and the other at the foot an 

 inch and one-eighth in diameter. These tubes descend to the 

 boiler, the smaller one entering it at the bottom, and the 

 larger one issuing from it as it were at the top. 



Under these circumstan- 

 ces, supposing the pipes and 

 boiler every where perfectly 

 tight, when the bath is filled 

 the water will descend into 

 and expel the air from the 

 boiler, and completely fill it. 

 Now, upon making a gentle 

 fire under the boiler, an 

 ascending current of warm 

 water will necessarily pass 

 upwards through the larger 

 pipe issuing from its top, 

 and cold water will descend 

 by the pipe which enters at 

 bottom ; and in this way, by 

 the establishment of currents, 

 the mass of water in the bath 

 will become heated to the 

 desired point; or if above it, 

 it may easily be attained by 

 the admixture of cold water. 



The annexed sectional 

 wood -cut will, perhaps, ren 

 der this description more in- 

 telligible. A is the bath. B 

 the level of the water in it. 

 C the descending nine of 



descending 



pipe 



pipe of hot water. E the 



cold water 



copper boiler with its 

 F2 



fire- 



