Schematic average of the secondary shaft and the institutions for the
Changes in speed. A hollow, with the gear A 'is a whole forming hood, which contains the segments A''. B hollow, with the Zahnrade B 'is a whole forming hood, which contains the segments B''. J auxiliary shaft, which the drive gear P and the hollow hoods, together with their gears transmits. K two-sided rack, which causes the displacements of the segments. P drive gear which engages the ring gear of the cardan-shaft. R Ball bearings for the shift of the rack.