Pulleys 2, 4 and 5 are of equal diameter. Link 1 rotates about fixed axis A and is connected by turning pair B to pulley 5. Flexible link 7 runs over pulleys 2 and 5. Pulley 2 is rigidly attached to the base. Flexible link 7 is connected by turning pair D to pulley 6. Link 3 is connected by turning pairs D and C to pulleys 6 and 4. Flexible link 8 runs over pulleys 4 and 6 and turns about axis A. When link 1 turns about axis A, pulleys 4 and 6 rotate about axes C and D, imparting a complex motion to link 3.
$2097$FL,Sa$