Crank 1 rotates about fixed axis A and is connected by turning pair B to connecting rod 2 which, in turn, is connected by turning pair C to lever 3. Lever 3 rolls and slides along fixed link 4 whose cam surface is a circular arc. Lever 3 is connected by turning pair D to lever 5 which turns about fixed axis E. When crank 1 rotates about axis A, lever 5 oscillates about axis E. The law of motion of lever 5 depends upon the profile chosen for the cam surface of lever 3.
$1719$LC,RL$