Link 5, designed as a complex lever, turns about fixed axis B and is connected by turning pairs C, D and E to link 4 and to pulleys 6 and 2, of equal diameter. Flexible link 7 runs over the pulleys and is connected by turning pair F to link 3. Link 4, designed as a bent lever, is connected by turning pairs G and H to link 3 and link 1 which turns about fixed axis A. When link 1 turns about axis A, links 3 and 4 have complex motions and link 5 oscillates about axis B.
$2052$FL,Sa$