126 FEEDING WITH SUGAR BEETS, SUGAR, ETC. 



This press, as shown, is fed with cossettes, which, after leav- 

 ing the elevator #, fall into the hopper K. The cone L with 

 its flanges then carries the mass down, pressing it against the 

 circumference d of the cylinder. As already stated, the pressure 

 increases as the mass is forced downward, and at the point of 

 greatest pressure this escapes, H having given out fully half its 

 liquid a portion entering the hollow cone through the perfora- 

 tions therein, and escaping at g, and the remainder passing 

 through the perforated cylinder c into the outside case and 

 escaping at k. 



The speed must be so regulated that the elevator will bring 

 just enough material to keep the hopper ^constantly full; and 

 it is thought desirable, when the cossettes are not in suffi- 

 cient volume to fill the same, to stop the machine, as otherwise 

 the results expected will not be obtained. The machine 

 should always be started slowly at first, and when entirely 

 filled, run at a regular rate of 50 revolutions per minute, 

 arranging the elevator to suit. The motion is given by a pulley 

 P carrying a pinion M working in the cog-wheel Z), which is 

 keyed on a horizontal shaft E, the latter having also a beveled 

 pinion F which works into a beveled cog-wheel C fastened on 

 the prolongation of the upper axis of the cone, just above the 

 box in which the axis turns. The lower axis is hollow to 

 allow the liquid inside the cone to escape, and this axis works 

 in an iron box provided with strong set-screws h and h' on the 

 outside, by which the box can be raised or lowered, to lessen or 

 increase the size of the opening of delivery and the consequent 

 pressure as may be desired. 



It is not always possible to convey the cossettes by a mov- 

 ing apron direct from the bottom of the diffusion battery to 

 the hopper K. But frequently it is emptied in any part of 

 the building, and the refuse conveyed by an Archimedean 

 screw into the presses. One advantage of this press is, that it 

 requires no care and little or no attention; but what is to be re- 

 gretted is that the pulp has not the fresh appearance it had 

 prior to the pressing. Fifty tons of cossettes may be worked in 

 twenty-four hours through one press of this description. This 

 amount may be increased by increasing the diameter of the 



