Link 4, designed as a bent lever, turns about fixed axis B and is connected by turning pairs G and E to pulleys 2 and 3, of equal diameter. Flexible link 7 runs over the pulleys and is connected to turning pair D to link 1. Link 5 is connected by turning pairs E and F to links 4 and 6. Links 1 and 6 turn about fixed axes A and C. When link 1 turns about axis A, link 5 has a complex motion and links 4 and 6 oscillate about axes B and C.
$2085$FL,Sa$