CANE SUGAR. 



is enclosed in a sheet iron casing h and closed by a strong cover g ; fastened on 

 to the disc e are a number of boxes varying from six to twelve, each of which 

 carries a strong sharp knife. The knives are fixed on the disc exactly similar 

 to the cutting edge of a carpenter's plane, and the knife boxes are arranged so 



FIG. 133. 



that they may readily be removed from the disc and spare knives substituted 

 when one set has become blunted. A plan of the disc with an arrangement 

 of twelve knives is shown in Fig. ISIj.. Securely fixed to the cover are one, 

 two or more hoppers a into which are fed the canes, which descend on to the 

 disc by their own weight. A high speed is given to the disc, from 100 to 15Q 



226 



