Pulleys 1 and 3 are of equal diameter. Pulley 1 rotates about fixed axis A and, through flexible link 7, rotates pulley 3 about fixed axis B. Link 4 turns about axis A and is connected by turning pair E to link 5. Link 6 turns about fixed axis C and is connected by turning pair D to link 5. Link 5, designed as a bent lever, is connected by turning pair F to link 2 which, in turn, is connected by turning pair G to flexible link 7. When pulley 1 rotates about axis A, links 2 and 5 have complex motions and links 6 and 4 oscillate about axes C and A.
$1901$FL,ML$