Link 1 turns about fixed axis A and is connected by turning pair B to pulley 5. Flexible link 6 runs over pulleys 5 and 2, of equal diameter, the latter being rigidly attached to the base. Links 3 and 4 are connected together by turning pair D and to flexible link 6 by turning pairs E and C. When link 1 turns about axis A, links 3 and 4 have complex motions.
$1877$FL,6L$