Link 3 turns about fixed axis C and slides in slider 4 which is connected by turning pair E to plate 5. Plate 5 is connected by turning pairs A and B to two gears 2 of equal diameter which roll along fixed gear rack 6 and mesh with gear rack 1. The length of the stroke of upper rack 6 is twice that of axes A and B of gears 2.
$1747$GL,ML$