Cross-shafts are made of square-section steel. The detent disc and star wheel are fixed to the rear of the shaft. The slide-set machine has a single pinion, which is moved directly by the sliders to engage with one of the ten racks. The key-set machine has five pinions, which are positioned above the gaps between successive pairs of racks. When pressing a key, the pinion move either forward or backward to engage with the rack on either side. Cross-shafts are mounted above and at right-angles to the racks. It is supported in plain bearings in three plates of 3mm brass, which are screwed and dowelled to six supporting pillars. The central plate is in two parts to form a split bearing. It is used in the steering gearbox that engages the steering shaft worm.