Face cam 1 rotates about fixed axis A and has profiled groove a. Follower 2 oscillates about fixed axis B and carries roller 5 which rolls and slides a lonig groove a. Noncircular quadrant 3 is connected by turning par C to follower 2, has sharp serrations b and is oscillated by a separate mechanism (not shown). When cam 1 rotates, serrations of quadrant 3 engage and periodically advance strip 4, thereby feeding the strip. Quadrant 3 is held in a definite position by spring 5.
$3155$SmC,SF$