The worm
rotates the worm gear, F, in two opposite arms of which are slots that
carry pins projecting inwards, which may be moved toward or away from
the center. This gear wheel turns free on the shaft that carries the
pulley, C, and is intended for opening, by means of the pins in the
arms and levers, a cover in the bottom of the hopper and a valve in the
bottom of the hulling cylinder. Coiled or bent springs return these
levers or valves to place when the pin which moves them has passed.
A wrist-pin on the gear, D, forms a crank which is connected to a bar
at the rear end of the sieves, G, pivoted to an arm at H, by which the
sieves have a shaking or reciprocating motion as the machine operates.
The blower drives out the hulls and the motion of the sieves with their
inclined position insure access of the air to every portion of the
hominy.
It will be noticed that the connection of all the parts is absolute. The
motion of the sieves, the speed of the blower, and the action of the
inlet hopper valve and the delivery hulling valve are always exactly
proportioned to the speed of the hulling cylinder, whether fast or slow.
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