Pulley 1 rotates about fixed axis A and, through flexible link 7, rotates pulley 4 about fixed axis B. Link 3 is connected by turning pairs C and D to flexible links 6 and 7. Flexible link 6 runs over pulleys 2 and 5. When pulley 1 rotates about axis A, pulleys 2 and 5 rotate about axes A and B, imparting complex motion to link 3.
$1919$FL,ML$