Prussian Seed Extracting Establishment. 



231 



tion of the Darre, and Fig. 2, showing a cyHnder in cross section. 

 The process in detail with reference to Fig. i, is as follows: 

 Side tracks (a, a') lead to the buildings. At (a) the cars filled 

 with cones are emptied and the cones immediately conveyed by a 

 grain elevator (b) either to the storage house (c) or the filling 



f^/qure /. 

 Comp/eie, 

 Cr- os-5 c^e c/zon 



a) 



k • 3a<^ 



J. t3kui& 

 « • J3//t. 



loft (d). If to the former, they are spread out not over 18 

 inches thick on the floor and occasionally shoveled about to 

 facilitate drying. If to the latter, they are shoveled into 6 wooden 

 measures which hold just the proper quantity to fill the cylinders. 

 They are then shot down (like oats from a feed loft) into the 

 cylinders (e, e') which after closing the 6 doors revolve slowly 

 clock-wise in a masonry chamber heated to an average of 48° C. 

 (118° F.). The construction of the cylinder is shown in detail 

 in Fig. 2. It is made of cast iron, perforated so as to allow the 

 seeds to drop out but forcing the cones to remain. Each is 

 divided into 3 compartments, containing 5 hectoliters (13I 

 bushels) for the entire six compartments. The most important 

 device is the conveyors (x, x') which prevent the cones from 

 clogging and keep the entire mass in perpetual motion. 



The heat is furnished from the grate (f) where coal and cones 

 are burned — chiefly the former because of the excellent price re- 

 ceived for dry cones as fuel where a hot, quick fire is needed or 

 as kindling for household purposes. In order that the heat in 

 the cylinders may be absolutely uniform, a thermohydrograph* 



♦Manufactured by R. Fuess, Steglitz bei Berlin, Dunther Strasse 8. 



