Plate cam 1 rotates about fixed axis A and its contour slides along surface a of follower 8 which turns about fixed axis C. Pawl 3 turns about axis D of follower 8 and engages the teeth of ratchet wheel 2 which rotates about fixed axis B and is rigidly attached to toothed wheel 4 with triangular teeth. Link 9 turns about fixed axis E and carries roller 10 which enters the tooth spaces of .wheel 4. Follower 8, pawl 3 and roller 10 are held in contact with cam 1, ratchet wheel 2 and toothed wheel 4 by springs 7, 5 and 6. When cam 1 rotates continuously, pawl 3 rotates ratchet wheel 2 and toothed wheel 4 intermittently, imparting an intermittent transport motion to the paper tape running over a roll rigidly attached to wheel 4.
$3358$CR,FD$