Fig. 121 shows a geared stalk and straw cutter, having self-feeding
spiked rollers. It has two revolving knives and a fixed knife.
The apparatus shown in Fig. 122 has spiral knives, above which
is a roller composed of disks of raw-hide closely compressed upon
a mandrel. Between the roller and knives the material passes.
Fig. 123 represents a machine for mixing corn and cobs for feed.
It is driven by power, the operation being performed by the revolving
hooked teeth. The speed should be about 600 revolutions per minute.
Fig. 124 is a machine for cutting vegetables for fodder. The cutting-wheel
is made of cast iron, through which are inserted three knifes similar to
plane-irons; these cut the vegetables into thin slices with great rapidity,
and the cross-knifes operate to cut and break them into irregular pieces
of convenient form and size for cattle or sheep.