1868 The complete Practical Distiller

SPIRIT OF POTATOES.

109

The func-

tinuous workj during the filling of the still.

tion of this cock is twofold :

it gives access to the air,

and thus prevents the dangers from absorption. still A is calculated to produce 168 pounds of steam per hour, provided it be supplied with boiling water; for if this was to be brought to ebullition by the still itself, a much less quantity of steam would be formed. It con- tains 230 litres up to the line a, and 306 up to h, which is the full charge. It would be easy to supply this still constantly with boiling water; this might be done by placing above it a small vessel filled with water, which might be brought to ebullition by means of the heat which escapes from the first still : a great economy in combustibles mi^ht thus be obtained. The

u.

Fiff.

The tube d, adapted to another tube F in fig. 14, con- veys the steam produced in this still into a tub (fig. 14) 10