246 



HOPS. 



The Miiller hop and fruit kiln (Fig. 72) is a very suitable 

 t5^e for small growej:s, and is built, on the plan of certain 

 fruit kilns, and for continuous work. It consists of a build- 

 ing of suitable size in which the drying frames are mounted 

 one above another. By means of an iron handle, c, all the 

 frames can be lowered together far enough to admit a newly 

 charged frame at the top, d, the lowermost frames, carrying 

 the driest hops, being removed in rotation through the door, 



Pig. 73. — The Tippmann hop kiln. 



/. The necessary warmth is supplied by a heating apparatus 

 formed of horizontal pipes built into the brickwork founda- 

 tion. The smoke and the water vapour are carried off by 

 separate chimneys. 



The Tippmann hop kiln (Fig. 73) ^ works in a similar 

 manner to the Miiller kiln, and is arranged for operating 

 continuously. Four systems of conveyers are usually pro- 

 vided, each consisting of four endless chains mounted on 



^ Uhland's Technische Rundschau, 1898, No. 7. 



