Crank 1 carries roller a which slides in curvilinear slot b of slotted link 2. The slot width is equal to the roller diameter. When crank 1 rotates, slotted link 2 and slider 4, driven by connecting rod 3, have nonsymmetrical variable motions in the forward and return strokes. By designing slot b with various curves, various kinds of motion of slider 2 can be obtained.
$997$LG,5L$