Link 1 turns about fixed axis A and is connected by turning pairs B to pulley 6 and link 4. Flexible link 5 runs over pulleys 6 and 2, of equal diameter, the latter being rigidly attached to the base. Link 3 is connected by turning pairs C and D to link 4 and flexible link 5. When link 1 turns about axis A, links 3 and 4 have complex motions.
$1878$FL,6L$