Mechanism to distribute the frequencies of a sound generator (Machine-translation by Google Translate, not legally binding)

摘要

Mechanism for distributing the frequencies of a sound generator, characterized in that each of the twelve sets of phonic wheels and their corresponding readers, being composed of an axis, in which the phonic wheels are inserted, driven by a pulley, that receives a constant speed motor, by means of an endless belt, when the twelve groups are assembled in a single frame forming mechanism, differentiating one group from another in the speed of rotation, determined by the diameter of the driving pulley, whose diameter is set following the partition of the tempered scale in twelve semitones. (Machine-translation by Google Translate, not legally binding)