The “Two-High” Mill
The mill as invented by Cort had but two rolls and these were actuated by a fly wheel. Turning in one direction continually, the rolls allowed the piece being rolled to go through in only one direction, i.e., it had to be returned from the rear to the front side of the mill after every passage, usually called “pass.” This was done by the “catcher,” a brawny man at the rear of the mill, seizing the piece, lifting one end bodily to the top of the upper roll over which it was carried back with more or less difficulty and awkwardness to the “roller,” who, from the front, seized and entered it again into the next succeeding or smaller groove of the rolls.
Two-High Rolls and Effect on the Piece