FRICTION-TYPE LOGARITHMIC FUNCTION GENERATOR

Friction wheel 2 is driven by friction wheel 4 through ball 3. Ball 3 rotates about axis K-K on shaft 8 which can slide axially in sleeve 5. Sleeve 5 is connected b y turning pair E to nut 6 which is connected b y a screw pair to screw 7. Wheel 4 is keyed to screw 7, rotates about fixed axis A-A and engages ball 3 at point D. By rotating screw 7, nut 6 can be traversed axially, changing the axis o…