Pulleys 2 and 4 are of equal diameter, as are pulleys 5 and 6. Link 1, designed as a bent lever, is connected by turning pairs A and B to pulleys 4 and 2 and by turning pair E to link 3. Link 3, designed as a bent lever, is connected by turning pairs D and C to pulleys 6 and 5. Flexible link 8 runs over pulleys 2 and 4 and is rigidly secured at points F and G to the base. Flexible link 7 runs over pulleys 5 and 6 and is connected by turning pair H to flexible link 8. When link 1 has straight translational motion, pulleys 2 and 4 roll along flexible link 8 and pulleys 5 and 6 rotate about axes C and D, imparting complex motion to link 3.
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