. Elements of practical agriculture; comprehending the cultivation of plants, the husbandry of the domestic animals, and the economy of the farm. WINNOWING MACHINE. 125 Figure 45. is the opposite side of the machine, and the oc- cult lines represent a section of the interior. Here DDDD are four oblong boards, termed fanners, by the rapid motion of which in the direction of the arrows xxxx, a strong cur- rent of air is produced through the interior of the machine in the direction of the arrows yy. E, shown also in Fig. 44, is a hopper, into which the corn to be winnowed is put. The corn falls d
. Elements of practical agriculture; comprehending the cultivation of plants, the husbandry of the domestic animals, and the economy of the farm. WINNOWING MACHINE. 125 Figure 45. is the opposite side of the machine, and the oc- cult lines represent a section of the interior. Here DDDD are four oblong boards, termed fanners, by the rapid motion of which in the direction of the arrows xxxx, a strong cur- rent of air is produced through the interior of the machine in the direction of the arrows yy. E, shown also in Fig. 44, is a hopper, into which the corn to be winnowed is put. The corn falls down from the hopper upon the sieves HI. These sieves are connected with the bottom of the hopper FG, which is moveable, and fixed to a hinge at K, and hung on two chains, one of which, L, is seen in the figure. When motion, there- fore, is given to the sieves HI, motion is at the same time given to the board KG, which forms the lower part of the hopper. The shaking motion given to this board causes the corn in the hopper to fall through upon the sieves by the aper- ture at G. By means of the screw M, a sliding board is made to be raised or pushed down, so that a greater or less aperture shall be left at G. The lateral or shaking motion is given to the sieves and bottom of the hopper by means of the rod Q, which is connected by one crank with sieves, and by another crank 0 with the axle C, to which the fanners are attached. The bottom of the machine TR, formed of boards, is placed obliquely, so that the corn, after having passed through the sieves, shall fall along the inclined plane from T to R. A part of this bottom is perforated like a sieve, so that dust, sand, and other impurities, shall be separated from the corn as it Fig. 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 Low, David, 1786-1859. Lond
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Keywords: ., bookcentury1800, bookdecade1830, bookleafnumber145, bookyear1838
