Link 3, designed as a bent lever, is connected by turning pairs E, F and G to link 1 and to pulleys 5 and 2, of equal diameter. Flexible link 7 runs over the pulleys and is connected by turning pair H to link 4. Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pair C to link 4, also designed as a bent lever. Link 6 turns about fixed axis B and is connected by turning pair D to link 4. When link 1 turns about axis A, links 3 and 4 have complex motions and link 6 oscillates about axis B.
$2057$FL,Sa$