Cylinder cams 1 and 2 are keyed to shaft 3, rotate about fixed axis A-A, and have continuous profiled grooves d and b. Followers 4 and 5 oscillate about fixed axes B and C, and carry rollers 6 and 7 which roll and slide along grooves b and d. Link 8 is connected by turning pair K to follower 5 and by sliding pair E to link 9 which, in turn, is connected by turning pair N to follower 4. By suitably designing the profiles of grooves d and b of cams 1 and 2, the required motion of rack a on link 9 can be obtained for feeding purposes.
$3239$CmL,SF$