UTILIZATION OF WASTE SEED FROM THE TOMATO. 



11 



equipment because of the necessarily increased size of the air blower 

 and the consequent power required for operating it. 



A drier which can be satisfactorily used for handling tomato seed 

 for oil extraction is a tunnel drier described in Farmers' Bulletin 984, 

 United States Department of Agriculture (fig. 6). An adaptation 

 of this form of drier for handling the quantities of seed produced 

 by a plant pulping 1,000 baskets of tomatoes a day is a rectangular 

 box 10 feet long, 2 feet wide, and 6 feet high. One end rests upon 

 the floor (fig. 6, left), and the other end is raised 2-J feet above the 

 floor level by increasing the length of the studding. This gives the 

 floor and ceiling of the box a uniform slope of 3 inches per foot of 



Fig. 6. — A 1-tunnel evaporator. 



length. The box has a solid floor except at the lower end, where 

 there is an opening 3 by 2 feet which permits the entrance of warm 

 air from the furnace placed immediately below the opening. A 

 ventilating shaft 2 by 3 feet is placed at the upper end and extends 

 through the roof to a height well above the top of the chimney and 

 the peak of the roof. 



The runways carrying the trays are made of strips 1 by 1 inch or 

 1 by 2 inches, nailed 4 inches apart to the studding on centers, thus 

 accommodating 16 tiers of trays, one above another. The trays may 

 be 2 by 3 feet or 2 by 4 feet, made of wire mosquito netting nailed 

 to frames made of wooden strips 1 by 1 inch. 



