This is the carriage that slides up and down the Zahnstange to move the levers. The carriage is driven by a single encoder motor, which drives one long shaft that is connected to two ‘U-Getriebeachse’, one for each Zahnstange. The carriage has an S-motor on each side of the Zahnstangem with an Achsadapter and a piece of a ‘Federnocken’.