Link 6, designed as a bent lever, is connected by turning pairs H, E and D to link 1 and to pulleys 3 and 5, of equal diameter. Flexible link 7 runs over the pulleys and is connected by turning pairs F and G to links 2 and 4. Links 1, 4 and 2 turn about fixed axes A, B and C. When link 1 turns about axis A, link 6 has a complex motion and links 4 and 2 oscillate about axes B and C.
$2047$FL,Sa$