Pulleys 2 and 5 are of equal diameter, as are pulleys 4 and 6. Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pairs E and D to pulley 6 and to link 3. Flexible link 7 runs over pulleys 4 and 6. Pulley 4 is rigidly attached to the base. Link 3, designed as a bent lever, is connected by turning pairs B and C to pulleys 2 and 5. Flexible link 8 runs over pulleys 2 and 5. Flexible links 7 and 8 are connected together by turning pair F. When link 1 turns about axis A, pulleys 2 and 5 rotate about axes B and C, imparting a complex motion to link 3.
$2092$FL,Sa$