Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pairs D and E to pulleys 4 and 2, of equal diameter. Flexible link 7 runs over the pulleys and is connected by turning pair F to link 3. Link 3, designed as a bent lever, turns about fixed axis B and is connected by turning pair G to link 6. Link 5 turns about fixed axis C and is connected by turning pair H to link 6. When link 1 turns about axis A, lever 6 has a complex motion and links 3 and 5 oscillate about axes B and C.
$2058$FL,Sa$