Link 4, designed as a bent lever, is connected by turning pairs C, D and E to link 1 and to pulleys 6 and 3, of equal diameter. Flexible link 7 runs over the pulleys and is connected by turning pair G to link 2. Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pair F to link 2. Link 5 turns about fixed axis B and is connected by turning pair D to link 4. When link 1 turns about axis A, links 2 and 4 have complex motions and link 5 oscillates about axis B.
$2081$FL,Sa$