Link 6, designed as a bent lever, turns about fixed axis C and is connected by turning pairs D and E to pulleys 5 and 2, of equal diameter. Flexible link 7 runs over the pulleys, and is connected by turning pair F to link 3 which is designed as a bent lever. Links 1 and 4 turn about fixed axes A and B and are connected by turning pairs H and G to lever 3. When lever 1 turns about axis A, link 3 has a complex motion and links 4 and 6 oscillate about axes B and C.
$2039$FL,Sa$