142 VINEGAR, CIDER, AND FRUIT-WINES. 



iiular depressions, four above and two below. In the centre is a 

 slit for the access of air. 



To be able to discharge at will the fluid in one vat of the appa- 

 ratus (Fig. 36) into the next below, the vats are connected by the 

 pipe i closed by spigots. The lowest vat, C, is provided with 

 discharge-pipes, I and k, I being directly above the bottom of 

 the vat and k about 1J inch higher up. The collecting vessel D 

 is at q connected by means of a rubber hose with the spigot <7 

 placed on C. The glass tube p, which is bent at a right angle 

 and can be turned, indicates, when in an upright position, the 

 height of the fluid in D, and with the mouth turned downwards 

 serves for discharging the contents of D. 



The apparatus is operated as follows : By opening the spigot 

 E, alcoholic liquid is allowed to run from the reservoir into the 

 uppermost vat, A, until it stands about J to } inch above the 

 apertures in the tubes. The spigots on i remain closed during the 

 normal working of the apparatus. The alcoholic liquid passes 

 through the apertures, trickles through the tubes into the vessel, 

 and gradually reaches in the same manner the collecting vessel 

 D. By a suitable regulation of the influx of alcoholic liquid from 

 E completely finished vinegar is claimed to collect in D. 



Michaelix's Rotatory Vinegar Generator. 



The principal feature of this apparatus, which has been patented 

 in Germany, is a strong barrel placed horizontally and having a 

 diameter of 3.3 feet and the same height. The interior of this 

 barrel is divided into two chambers by a horizontal lath-bottom ; 

 the upper smaller chamber is filled with shavings or pieces of 

 charcoal. In the bottom below the lath-bottom a horizontal tube 

 serves for the influx of air and a spigot above in the side of the 

 barrel for its egress. 



The alcoholic liquid is poured in close under the lath-bottom, 

 the air-spigot closed, and the barrel revolved so that the shavings 

 become saturated. In about fifteen minutes the barrel is returned 

 to its original position and the air-spigot opened. The commence- 

 ment of the formation of vinegar is soon indicated by the increased 

 temperature, and the apparatus is now in full working. To make 



