(under subclass 391) Subject matter wherein the movement of the type-bar* is effected by way of a member having a cam surface connected to a cam-surface follower.
(1) Note. A "cam surface" is defined as the edge periphery of a disc that rotates or oscillates about an axis, the radial distance of the axis to the periphery varying around the periphery. As the disc rotates or oscillates, the distance of a follower that is in contact with the periphery will increase and decrease relative to the axis of the disc, thus the rotation or oscillation of the disc will effect substantially radial movement of the follower.
