58 



VINEGAR, CIDER, AND FRUIT- WINES. 



lines illustrate the portions of the generator in which, with the 

 use of many apertures below the false bottom and a single one in 

 the centre of the cover, the regular current of air from below to 



Fig. 5. 



Scheme of the Incorrect Conduction of Air in Vinegar Generators. 



above passes ; though a current of air takes place outside of these 

 lines, it is in most cases too weak, and consequently the entire 

 available space of the generator is not sufficiently utilized. 



The generators may also be entirely open below and stand in a 

 shallow tub, which serves for the collection of the vinegar ; gen- 

 erally, however, the lower portion of the generator itself is used 

 for this purpose, and is provided with an arrangement for the 



Self-acting Discharge Arrangement on the lower part of the Generator. 



occasional discharge of the collected fluid. This can be effected 

 either by a spigot fixed immediately above the bottom,. or, as in 



