Plate cam 1 rotates about fixed axis D. Follower 2 turns about fixed axis A and carries roller 8 which rolls along the contour of cam 1. Link 3 is connected by turning pairs D and E to follower 2 and to link 4 which turns about fixed axis B. Link 9 is connected by turning pairs K and F to slay 6, turning about fixed axis C, and to link 5, turning about axis B. When cam 1 rotates, lug a of link 4 engages pawl 10, which turns about axis M of link 5, and, by means of link, turns slay 6 about axis C. The slay is returned to its initial position by spring 7.
$3276$CmL,FD$