62 VINEGAR, CIDER, AND FRUIT-WINES. 



Upon a perfectly horizontal axis is placed a rotatory, trough- 

 like vessel divided by a partition into two equal parts. 



If the tilting trough is in the position shown in Fig. 12 the 

 alcoholic liquid runs through the cock, placed above, into the 

 partition marked 1. 



Fig. 12. 



Fig. 13. 



Tilting Trough. 



As soon as this partition is filled to a certain height it turns 

 over in consequence of the disturbance of the equilibrium of the 

 trough and assumes the position shown in Fig. 13. In this posi- 

 tion partition 2 is gradually filled with alcoholic liquid, the trough 

 then tilts back into position 1, and so on. 



It will be seen that with the assistance of such a tilting-trough 

 the same quantities of liquid can always be poured out at certain 

 intervals, and that this arrangement can be used for distributing 

 the alcoholic liquid upon the disk, the latter in this case being 

 best provided with holes having the form of an inverted cone. 

 The apex of this cone forms a very narrow aperture through 

 which the alcoholic liquid poured upon the disk trickles in very 

 thin jets upon the filling of the generator. 



But even this arrangement is not free from objections ; it works 

 entirely satisfactorily only as long as the disk remains in a per- 

 fectly horizontal position. In the more modern constructions of 

 vinegar generators the disk is generally entirely omitted and the 

 distribution of the alcoholic liquor effected by a so-called "spar- 

 ger," similar to the one used in beer brewing for sprinkling malt 

 residues. The sparger is arranged like a simple turbine, and is 

 moved by reaction in the direction opposite to that in which 

 the discharge of the fluid takes place. Spargers used in vinegar 



