Link 3, designed as a bent lever, turns about fixed axis B and is connected by turning pairs D and C to pulleys 2 and 4, of equal diameter. Flexible link 7 runs over the pulleys and is connected by turning pair E to link 1. Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pair F to link 6. Link 5 turns about axis B and is connected by turning pair G to link 6. When link 1 turns about axis A, link 6 has a complex motion, and links 3 and 5 oscillate about axis B.
$2088$FL,Sa$