16 QUICK METHOD FOR DETERMINIXG MOISTURE IN GRAIN, 





^J 



ol 



iM 





B 



L t 



t-! 



/' 



V 



c 



L 



asbestos linino- and covering, are fastened together with the screw 

 bolts (figs. 4 and 5, g). The different compartments are each made 

 5f inches square inside, and are separated from each other by tAvo 

 partitions, each with a double thickness of asbestos, and a quarter- 

 inch air space (7i), so that when the heat is turned off from one 



compartment the sample of corn in the 

 flask within will in no way be affected 

 by the heat from an adjoining com- 

 partment should it still be in opera- 

 tion. These partitions extend 2^ 

 inches below the ledges (/) which sup- 

 port the flasks (/>) , in order to prevent 

 the flame of anj' one burner from 

 spreading into an adjoining compart- 

 ment. Within each compartment. Q>\ 

 inches from the top of the chamber, 

 is a galvanizecl-iron ledge (i) for 

 supporting the wire gauze, flask, etc., 

 the ledge being cut in such a wav as 

 to form a hole rt^ inches in diameter. 

 In order to prevent the brass-wire 

 gauze from becoming badly distorted 

 by the action of the heat, it should be 

 held in place by means of a second 

 piece of galvanized iron (/'), which 

 fits into the compartment and has 

 a hole of the same diameter as the 

 support (/). " 



On the plate holding the gauze 

 firmly in place (see fig. 4) rests a 

 flanged pipestem triangle (j), which 

 serves to raise the flask {p) about one- 

 half inch above the brass-wire gauze, 

 this being essential in order to prevent 

 the corn which lies directh' on the 

 bottom of the flask from becoming too 

 highly heated. If the flask rests on 

 the gauze, the kernels in contact with 

 the bottom of the flask directly over 

 the flame will become carbonized and the percentage of water expelled 

 will be too large. The interior arrangement of each compartment is 

 more clearly shown in figure 9. The length of the flanged pipestem 

 forming the sides of the triangle is 4 inches. The gauze is 30-mesh, 

 made of Xo. 31 brass wire. 



99 



Fig. 5.- 



-Plaii of end of apparatus for mois- 

 ture determination. 



.-1, condenser; B, evaporating chamber; 

 C. stand-supporting condenser and evapo- 

 ratingchamber, c, overflow pipe; rf, washer 

 soldered to bottom of condenser tanli; e, 

 rubber stopper supporting condenser tube; 

 fy, screw bolts; ?, ledge for supporting gauze, 

 triangle, and flask; V, galvanized iron ring 

 above gauze; j, flanged pipestem triangle; 

 it, covers; m, handle on cover; p, distilla- 

 tion flask; q, thermometer, )•, rubber stop- 

 per; s, condenser tube; I. graduated meas- 

 uring cylinder; r, braces; x, burner; x' , ex- 

 tra stopcock beneath burner; y, ga.s pipe; 

 y' support for gas pipe. 



