Round eccentric 1 rotates about fixed axis A. Levers 2 turn about fixed axes B and carry rollers 6 which roll along the working surface of eccentric 1. Levers 2 are rigidly attached to inner clutch members 3 and transmit clockwise rotation through balls a to outer members (gears) 4 when the balls jam between the cam surfaces of member 3 and the inner cylindrical surface of member 4. Gears 4 mesh with internal gear 5 which they rotate about axis A.
$3426$CF,ML$