Plate cam 1 rotates about fixed axis E. Slay 2 turns about fixed axis A and carries roller 4 which rolls along the contour of cam 1. Link 8 is connected by turning pairs C and D to slay 2 and to link 3 which turns about fixed axis B. Pulley 6 rotates about fixed axis H. Flexible link 5 has one end attached at point F to link 3, runs over pulley 6, and has its other end attached at point K to spring 7 which holds roller 4 in contact with cam 1. When cam 1 rotates, slay 2 oscillates.
$3588$CFL,FD$