Apparatus for lapping and grinding balls

Claim 1

APPARATUS FOR LAPPING AND GRINDING A PLURALITY OF BALLS COMPRISING IN COMBINATION: A PAIR OF LAPPING AND GRINDING DISCS CONCENTRICALLY LOCATED IN OPPOSED RELATION TO EACH OTHER, ONE OF SAID DISC HAVING A PLURALITY OF CONCENTRICALLLY ARRANGED GROOVES THEREIN; MEANS FOR ROTATING ONE OF SAID DISCS; MAGAZINE MEANS INCLUDING AN ANNULAR ROTATABLE BASE ECCENTRICALLY ARRANGED WITH RESPECT TO SAID DISCS, SAID MAGAZINE ALSO INCLUDING MEANS DEFINING A PLURALITY OF GUIDING CHANNELS FOR THE BALLS TO BE GROUND AND LAPPED, THE NUMBER OF CHANNELS BEING EQUAL TO THE NUMBER OF GROOVES IN SAID DISC; MEANS FOR ROTATING SAID BASE IN A DIRECTION OPPOSITE TO THAT OF SAID ONE DISC; SAID MAGAZINE INCLUDING MEANS FOR LEADING BALLS OUT OF ONE GROOVE ON SAID DISC, AROUND ONE OF SAID GUIDING CHANNELS, REINSERTING SAID BALLS IN A DIFFERENT ONE OF SAID GROOVES IN SEQUENTIAL PROGRESSION SO THAT EACH BALL TRAVELS THE SAME PATH LENGTH AROUND EACH GROOVE BETWEEN SAID DISCS AND THROUGH THE CHANNELS IN SAID MAGAZINE AND EACH BALL TRAVERSE EACH OF SAID GROOVES AND CHANNELS IN SUCCESSION.