Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pairs B and E to pulley 3 and to link 4. Flexible link 8 runs over pulleys 3 and 7, of equal diameter, and is connected by turning pair C to link 2. Pulley 7 is rigidly attached to the base. Link 4, designed as a bent lever, is connected by turning pairs D and F to links 2 and 6. Link 5 turns about axis A and is connected by turning pair G to link 6. When link 1 turns about axis A, links 2, 4 and 6 have complex motions and link 5 oscillates about axis A.
$2083$FL,Sa$