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