PRODUCTION OF SIRUP FROM SWEET POTATOES. 
25 
Mixing Tank. 
It has been found desirable to mix the kieselguhr with water and 
some crude sirup before mixing it with all the crude sirup to be 
filtered. For this purpose the mixing tank, rectangular in shape, 
built of wood, and lined with galvanized iron, is used. This tank is 
4 feet long by 3 feet wide by H feet deep and has a capacity of 
approximately 125 gallons. The outlet is H inches. In order to 
fill the tank with water a spigot connection extends over the top of 
the tank, which is calibrated so that the quantity of water needed 
can be determined accurately. 
Boiler. 
The boiler for the proposed plant is an approved type of the return 
tubular boiler. It has a capacity of 35 boiler horsepower. This 
capacity was taken to give the most efficient operation for a plant of 
this size and will take care of any peak loads in the plant. The floor 
space required by the boiler is 8 by 15 feet. The boiler has standard 
equipment and is designed for 70 pounds gauge pressure operation. 
The cost of the boiler complete is $500. The feed water pump will 
cost $200, and $210 is allowed for the boiler setting. 
Electric Motor. 
A standard type, 10-pole, polyphase alternating current electric 
motor, with a rated horsepower of 5, furnishes the motive power for 
the plant. The motor has a speed of 675 revolutions per minute at 
full load and runs at 110 volts. It weighs 550 pounds and requires 
an over-all floor space of 2 feet by 18J inches. The value of the 
motor complete is $150. 
Total Cost of Apparatus and Equipment. 
An itemized statement of the cost of all apparatus and equipment 
necessary for the installation of the proposed plant for the manufac- 
ture of sweet-potato sirup is given in Table 3. 
Table 3. — Complete cost of installing plant capable of producing ion gallons of 
sirup per 10-hour day. 
Equipment. 
Belt conveyer 
Potato washer 
Hopper scales 
Elevator 
Chutes (3) 
Mash tank 
Measuring tank 
Hydraulic press 
Overhead tank 
Evaporat ors (2) 
Cooling tanks (2) 
Mixing tank 
Filter press 
Flavoring kettle 
Capping machine 
Pump (hydraulic press to overhead tank) . 
Pump (evaporator to cooling tank) 
Cost. 
$170 
300 
200 
215 
35 
350 
75 
375 
15 
700 
450 
12 
400 
1 25 
35 
67 
67 
Equipment. 
Pump (cooling tank to filter press 1 * 
Pump (filter press to evaporator) 
Pump (evaporator to flavoring kettle). 
Scales, tools, trucks, etc 
Evaporat or cat ch tanks (2) 
Filter-press ca t eh tank 
Benches and storage bins 
Electric motor , 5-horsepower 
Boiler, 35 boiler horsepower 
Boiler feed water pump 
Boiler setting 
Piping 
Labor in erection 
Bolting 
Shafting 
Total. 
Cost. 
$200 
67 
10 
150 
500 
200 
210 
150 
200 
150 
