. Bulletin. 1901-13. Agriculture; Agriculture. Fig. 9.—Interior arrangement of the compartments of the evaporating chamber, showing the position of the tri- angle over the gauze. stand is 9i inches, which raises the bottom of the condenser tank 8| inches above the work table, leavinir ample room for the 8-incli meas- uring flasks (z^) to be placed under the condenser tubes. The corners of the stand are strengthened by the braces (v). The cross piece (w) at the back of the stand is dropt 4 or 5 inches in order to facili- tate the manipulation of the burners. Between the burners (x) and the gas
. Bulletin. 1901-13. Agriculture; Agriculture. Fig. 9.—Interior arrangement of the compartments of the evaporating chamber, showing the position of the tri- angle over the gauze. stand is 9i inches, which raises the bottom of the condenser tank 8| inches above the work table, leavinir ample room for the 8-incli meas- uring flasks (z^) to be placed under the condenser tubes. The corners of the stand are strengthened by the braces (v). The cross piece (w) at the back of the stand is dropt 4 or 5 inches in order to facili- tate the manipulation of the burners. Between the burners (x) and the gas pipe (y) is in- serted an extra stopcock (x'). With the extra stopcock directly beneath the burners the flow of gas can be regulated by setting either the valve in the burner (a?) or the stop- cock (a?')? using the remaining one for turning on and off the gas. (Figs. 3 and 5.) The gas pipe (?/) with the attached burners can be raised or lowered by loosening the nuts (.s) at the slotted supports (y^) at either end of the stand. THE DISTILLATION FLASKS. The flasks (figs. 4 and 5, p) in which the mixture of corn and oil is heated are primarily distillation flasks having short necks and specially constructed'side tubes. (Fig. lb.) The flasks have a capacity of approximately 1,000 cubic centi- meters. The necks of the flasks have a diameter of 2J centime- ters and are made without a flange and sufficiently heavy to stand tight corking. The side tube, which is 7 or 8 millimeters in internal diameter, is insert- ed approximately 3 centimeters from the top of the neck. The respective lengths of the three arms of the side tube are 6^, 7. and 3 centimeters. The bend between the two long arms is 1^ centi- 99. Fig. 10.—Distillation 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. Bureau of Plan
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