Plate cam 1 rotates about fixed axis A. Follower 2 slides with its slot a along fixed pin b and carries roller 5 which rotates freely about axis C and rolls along contour d of cam 1. Follower 2 is connected by turning pair B to secondary follower 3 which oscillates about fixed axis D. When cam 1 rotates, follower 2 has a complex motion and secondary follower 3 oscillates. Roller 5 is held in contact with cam 1 by spring 4.
$3190$CmL,ML$