Studies on the rubber-roll rice huller (10)

The effect on hulling power by a rubber-roll of the different circumference type

Abstract

We made out four sorts of diffusers in diameter 53/4″ 61/2″, 73/4″ and 81/2″ and also made an experiment on the hulling powers in the following two cases: one that is assorted a high speed and great diameter roll with a low speed and little diameter one; the other, on the contrary a high speed but little diameter roll with a low speed but great diameter one.