Pulleys 2 and 5 are of equal diameter, as are pulleys 4 and 6. Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pairs B and F to pulley 5 and to flexible link 8. Flexible link 7 runs over pulleys 2 and 5 and is connected by turning pair E to link 3. Pulley 2 is rigidly attached to the base. Link 3, designed as a bent lever, is connected by turning pairs C and D to pulleys 6 and 4. Flexible link 8 runs over pulleys 4 and 6. When link 1 turns about axis A, pulleys 4 and 6 rotate about axes D and C, imparting a complex motion to link 3.
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