Procédé de fabrication d'un clavier de mouvement à musique, par fraisage ou meulage

摘要

A comb blank is given two inclinations relative to the rotational axis of a spindle carrying a plurality of spaced rotatable tools of equal diameter. The comb blank is then passed relative to the tools when rotating so that a plurality of parallel tongues are formed in the comb blank from one end of the comb blank towards the opposite end. The relative inclinations are so arranged that a line joining the roots of the tongues where the tongues join the remainder of the comb blank forms a predetermined angle with the one end of the comb blank.