152 CULTURE OF THE SUGAR BEET. 



(b) "With Pieron continuous presses : 



1 horizontal engine, 18-inch cylinder and 36-inch stroke, complete $1, 700 



1 elevator and root-washer and stone-separator combined, complete 700 



1 rasp, with 2 drums, automatic plungers and oiling-boxes, pulp-trough, and 



extra drum, complete 700 



1 continuous preparatory press, Pi6ron system 900 



5 Pidron continuous presses, 2 for second pressing, at $700 each 3,500 



2 closed screw-conveyors between presses for first and second pressing, with 

 elevator, complete - 480 



1 open screw-conveyor, for removal of pulps for their discharge from press, 



about 280 



1 screen for retaining foam on juice 360 



1 pump for injection of water to press 100 



Transmission of power to rasp and presses, about 700 



Copper tubing connecting the continuous presses 240 



Total approximate cost of Pie~ron continuous presses and requirements 



and accessories 9, 660 



(c) With hydraulic presses : 



1 root-elevator 460 



1 root-washer , , 776 



1 rasp, 2 drums 12|-inch diameter 798 



1 extra drum, complete 189 



2 self-oiling boxes (extra) 53 



1 pulp- vat 85 



1 mechanical filler (pelleteur) 126 



1 mechanical preparatory press 504 



6 hydraulic presses, cast and wrought iron, with piston 12 inches diameter, 



each $420 2,520 



1 battery of injection-pumps, with 6 cylinders for 6 presses 1, 156 



1 non-condensing engine, 12^-inch cylinder, 24-inch stroke 1, 386 



Transmission of power, about 1,220 



Approximate cost of hydraulic presses and accessories 9, 273 



(f?) Robert's diffusion process : 



1 root-elevator _ 460 



1 root-washer and stone-separator, complete 856 



1 root-cutter, horizontal plate, 4| feet diameter ; 24 boxes of knives, of which 



16 are for exchange 735 



10 diffusers, each of 440 gallons capacity, capable of holding 2,640 pounds per 



charge, each $504 5, 040 



10 heaters (calorisateurs), with 5 feet 10 inches steam coil, valves, stopcocks, 



tubing, and accessories for connecting with diffusers, each $252 2, 520 



Girdled iron tubing, adherent to the battery of di ffusers, about 560 



Copper tubing for conveying steam to and from diffusers, about 300 



1 wagon of perforated plate, with circular track 320 



1 elevator for exhausted slices, complete 525 



2 Klusemann's presses, for slices, each $525 1, 050 



1 reservoir for compressed air, with tubing, safety-valves, &c, complete 126 



Transmission of power, complete, about 1,000 



1 pump for compressed air, 10^-inch cylinder, 12-inch stroke, with special en- 

 gine, of 9-inch cylinder and 12-inch stroke, complete 1, 060 



Total approximate cost of apparatus and requirements for Robert's dif- 

 fusion process 14, 552 



