Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pairs B and C to pulley 7 and to link 3. Flexible link 8 runs over pulleys 2 and 7, of equal diameter, and is connected by turning pair F to link 4. Pulley 2 is rigidly attached to the base. Link 5 is connected by turning pairs D and E to links 3, 4 and 6. Link 6 turns about axis A. When link 1 turns about axis A, links 3, 4 and 5 have complex motions and link 6 oscillates about axis A.
$2070$FL,Sa$