KRYSSNINGSMEKANISME FOR FOERING AV EN KAMFOELGER GJENNOM ETSKJAERINGSSPOR FOR KAMSPOR.

摘要

To guide a cam follower through the intersection (30) of crossing portions of a cam track, a crossover mechanism is provided with a pair of crossover cam members (44,48) which are separately, telescopically reciprocated to momentarily insert cam segments into the intersection in properly timed relation with the arrival thereat of the cam follower in its movement along either of the crossing track portions.