Link 1 slides along fixed guides a-a and is connected by turning pair A to pinion 6 which rolls along fixed rack 4. Gear 6 also meshes with rack 2 which slides along fixed guides b-b and is connected by turning pair B to pinion 7. Pinions 6 and 7 have the same pitch diameters. Pinion 7 rolls along fixed rack 5 and also meshes with rack 3 which slides along guides a-a. The displacement of rack 2 equals s₂=2s₁, and that of rack 3 equals s₃=2s₂=4s₁, where s₁ is the displacement of rack 1.
$2948$CxG,MO$