Rigidly attached to rod 1 of driving piston b, reciprocating in cylinder c, is rack d which meshes] with pinion 3. Pinion 3 rotates about fixed axis A and is rigidly attached to plate cam 2 whose contour f slides along surface e of follower 4 which turns about fixed axis B. When piston b reciprocates, follower 4 oscillates about axis B.
$3333$GrC,PM$