Pulleys 2 and 7 are of equal diameter, as are pulleys 4 and 6. Link 1 turns about fixed axis A and is connected by turning pair B to pulley 7. Flexible link 5 runs over pulleys 2 and 7. Pulley 2 is rigidly attached to the base. Link 3, designed as a bent lever, is connected by turning pairs B, C and D to link 1 and to pulleys 6 and 4. Flexible link 8 runs over pulleys 4 and 6 and is connected by turning pair E to flexible link 5. When link 1 turns about axis A, pulleys 4 and 6 rotates about axes D and C, imparting a complex motion to link 3.
$2103$FL,Sa$