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