It dispenses with the large detaching cam, the cradle, the notch-wheel, the catch and its spring, the large spur wheel which drives the calender roller, and the internal wheels for the detaching roller-shaft, substituting in their stead a much simpler motion, consisting of a smaller cam, a quadrant, and a clutch.

Another important feature of the new arrangement is that it allows the motion of the detaching-roller to be varied.