Link 1 turns about fixed axis A and is connected by turning pair B to pulley 2. Flexible link 5 runs over pulleys 2 and 6, of equal diameter, the latter being rigidly attached to the base. Link 3 is connected by turning pairs C and D to flexible link 5 and to link 4 which, in turn, is connected by turning pair E to extension a of pulley 2. When link 1 turns about axis A, links 3 and 4 have complex motions.
$1881$FL,6L$