Pulleys 1 and 2 are of equal diameter. Pulley 1 rotates about fixed axis A and, through flexible link 7, rotates pulley 2 about fixed axis B. Link 3, designed as a bent lever, is connected by turning pairs G, F and E to flexible link 7 and to links 4 and 6. Link 4 turns about fixed axis C. Link 5 turns about axis C and is connected by turning pair D to link 6. When pulley 1 rotates about axis A, links 3 and 6 have complex motions and links 4 and 5 oscillate about axis C.
$1899$FL,ML$