Link 5, designed as a bent lever, is connected by turning pairs D, E and F to link 1 and to pulleys 3 and 6, of equal diameter. Flexible link 7 runs over the pulleys and is connected by turning pair G to link 2. Link 4 turns about fixed axis B and is connected by turning pair E to link 5. Links 1 and 2 turn about fixed axes A and C. When link 1 turns about axis A, link 5 has a complex motion and links 2 and 4 oscillate about axes C and B.
$2080$FL,Sa$