Face cam 1 rotates about fixed axis A and has profiled groove a. Followers 2 and 9 oscillate about fixed axes B and D, and carry rollers 13 and 14 which roll and slide along groove a. Driven drum 10 rotates freely about axis D. Shoe 12 turns freely about axis K of link 8 which is connected by turning pairs C and F to follower 9 and to link 7. Link 7 is connected by turning pair E to bellcrank lever 6 which oscillates about fixed axis N. Shoe 11 turns freely about axis L of bellcrank lever 5 which oscillates about fixed axis M. Levers 6 and 5 carry rollers 15 and 16 which roll and slide along cam slot b of sliding cam 4. Cam 4 reciprocates along fixed guides f-f and is driven by connecting rod 3 which is connected by turning pairs P and C to cam 4 and to follower 2. When cam 1 rotates continuously, drum 10 rotates intermittently with dwells. Rotation of the drum, corresponding to the feeding process of the material, is accomplished by shoe 12 during the periods when it is pressed against the surface of the drum and shoe 11 is withdrawn from the surface. Dwells of the drum occur when shoe 11 is pressed against its surface and shoe 12 is withdrawn.
$3255$CmL,SF$