Gam 4 and planet gear 5 are keyed to the stud of carrier 2 which rotates about fixed axis A. Follower roll 6 and planet gear 7 are mounted on the stud of carrier 3 which rotates about axis A. Carrier 2 is keyed to shaft 18 and is driven by driving shaft 1 through gears 8, 9, and 10. Planet gear 7 is rotated about its own axis by driving shaft 1 through gears 11, 12, 13 and 14. The last two gears are keyed on a sleeve which rotates freely on shaft 18. Gear 7 and its carrier 3 are turned with respect to shaft 1 by cam 4. Sun gear 15 is fixed. Spring 16 holds roll 6 in contact with cam 4. When shaft 1 rotates about fixed axis B, gear 5 rolls around fixed gear 15, rotating cam 4, and gear 7 meshes with and rotates internal gear 17 about axis A. Due to the action of the cam, gear 17 rotates intermittently with dwells.
$2798$CmG,D$