ROLL MILLS. 271 



Plate XXIX represents a plan of cane mill, showing the three 

 rolls, cheek pieces, cane and trash carrier pulleys ; also, how they are 

 actuated by the geared wheels by a linked iron belt. 



The mill as shown represents a single-geared mill — that is, the pin- 

 ion is connected directly on the main shaft of engine, and operates into 

 the main wheel, secured to the shaft of the top roll. A better way is 

 to make it compound geared, speeding it so that a point on the surface 

 of the roll will travel about fifteen feet per minute, and the engine 

 about thirty revolutions to one of the mill. 



The top roll is arranged in connection with a knife, so as to direct 

 the cane toward the center of the bagasse side, and by this, hindering 

 it from passing out between the ends of the rolls and di'opping into 

 the juice pan, Avhich is placed between the cheeks so as to catch the 

 juice as it falls. 



The cane carrier is a long traveling table of ash slats, as wide as the 

 rolls, secured at each end in the long links of a chain, and passing 

 over the inboard pulleys, which have projections to catch into the short 

 links of the chain. The outboard pulleys and shaft are plain, and se- 

 cured to a suitable foundation. This carrier is set in action by means 

 of a chain belt, receiving its motion from the cane roll, the shaft of it 

 being longer on this end to receive the wheel. If the cane carrier 

 should be too much loaded, so as to crowd the mill, the carrier can be 

 stopped by means of the lever V, which throws out the noiseless fric- 

 tion clutch, allowing the carrier to be idle while the mill revolves and 

 clears itself. 



The deliverer, or trash carrier, is arranged in the same manner, but 

 has no need of the stop motion, as the trash can be carted away as 

 fast as made. 



We are now making mills with steel shafts, crown wheels, and pin- 

 ions — much stronger than wrought oi cast iron. 



There is also arranged, in connection Avith the mill, a juice tank and 

 plunger pump, operated from one of the shafts by means of a crank, 

 and of capacity about double what could be anticipated of the mill, in 

 order. that it may never choke. 



This mill is manufactured by Col well Iron Works, New York, and 

 of any size desired. 



