Patent for a new and improved grain toller. This design "consists in a novel construction of a revolving cylinder provided with cavities representing certain measures . . . separating a certain portion [of grain] to be retained as toll, and whereby, also, provision is made for varying the size of the toll-measure, so as to enable it to separate different proportions from the main body of the grain, according to the amount of toll to be taken" (lines 7-19).