Pinion 1 rotates about fixed axis A and meshes with segment gear a of slotted lever 4 which turns about fixed axis B. Slider 2 moves along slot b of lever 4 and is connected by turning pair C to link 3 which turns about fixed axis D. When driving pinion 1 rotates alternately in opposite directions, driven link 3 oscillates about axis D.
$2430$LrG,5L$