. Bulletin of the Department of Agriculture. Agriculture; Agriculture. UTILIZATION" OF WASTE SEED FEOM THE TOMATO. 9 depending, of course, on the size and duration of the cycle. It will be noted that the above methods are not continuous and that they require the entire attention of the operator. A moisture expeller (figs. 4 and 5) has been successfully applied in this operation. The machine is essentially similar to an oil ex- peller, consisting of a horizontal barrel composed of bars bolted together, along the longitudinal axis of which rotates a screw. This latter carriers the char
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. UTILIZATION" OF WASTE SEED FEOM THE TOMATO. 9 depending, of course, on the size and duration of the cycle. It will be noted that the above methods are not continuous and that they require the entire attention of the operator. A moisture expeller (figs. 4 and 5) has been successfully applied in this operation. The machine is essentially similar to an oil ex- peller, consisting of a horizontal barrel composed of bars bolted together, along the longitudinal axis of which rotates a screw. This latter carriers the charge of wet seed forward and discharges it over a cone in the outlet of the barrel. By adjusting this cone in the throat of the barrel the degree of pressure, and consequently the extent of moisture reduction, can be Fig. 4.—An experimental moisture expeller ; Closed. The machine does not operate on unwashed seed, as the slippery character of the latter causes it merely to churn. It is absolutely necessary that the seed be denuded of this coating material, and pref- erably pressed hot. All of this can be accomplished, of course, by washing the seed in hot water and pressing it immediately. By such procedure the moisture content can be reduced from 65 to about 52 per cent. The operation is continuous and does not need the constant attention of the operator; in fact, after being adjusted at the begin- ning of the run it operates without further change, except possibly a slight adjustment from time to time because of the varying char- acter of the seed. Among its other advantages is the fact that owing 17780°—21 2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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