Face cam 1 rotates about fixed axis A and has profiled groove a. Followers 2 and 7 oscillate about fixed axes B and C and carry rollers 10 and 11 which roll and slide along groove a. Connecting rod 3 is connected by turning pairs D and E to follower 2 and to link 4 which turns about fixed axis P. Pin-wheel 5 is rotated about axis P by member 9 whose recess d successively engages pins 6 of wheel 5. Member 9 is connected by turning pairs E and F to link 4 and to link 8 which, in turn, is connected by turning pair K to follower 7. Follower 7 has lug b which periodically enters the space between two adjacent pins 6 of wheel 5 to prevent unintentional rotation of the pin-wheel during its dwell periods. When cam 1 rotates continuously, pin-wheel 5 rotates intermittently with dwells.
$3194$CmL,D$