


To render the tone quality of the instrument more brilliant also in the range of high tones, the width of the opening should be somewhatrlarger for high tones than for low tones.įurthermore, in the 'case of Aa -reedplate of stepped profile, a combination of resonance chambers maybe provided in such a manner that a Vresonance chamber de-V signed in a manner known by itself, formed solely by the reed plate and extending toward the bellows frame, is'providedgpthe reed plate portion associated with this resonance chamber and extending toward the bellows frame, carries reed blocks, Whereas the reed plate por- tion extending approximately in the direction of the plane of the Ybellows frame and carrying reed blocks, is cov-v ered by a bafe wall disposed over the valvespthereof. By limiting the width of the openings it is assured that part of the sound waves produced is entrapped by the wall defining the opening.
#ACCORDION METHOD RIBS FULL#
the size of the valves transversely to the longitudinal direction of the opening, because Vthe use of such dimension of said width results in a round and full tone, whereas an increase of said width results in increased sharpness of the tone. It has been found to be likewise of advantage to make the width of the opening smaller than the length of the valves, i.e. Sounds produced when the valves are lifted have the same resonance characteristics in adjacent Yvalve rows and are projected to` ward the cover in the same manner, and this results in a uniform tone quality over the entire accordion. It is of advantage to arrange this opening in such a manner that it is disposed over the ends of the valves, for example, of two rows of Valves.


#ACCORDION METHOD RIBS PDF#
Download PDF Info Publication number US2950643A US2950643A US600113A US60011356A US2950643A US 2950643 A US2950643 A US 2950643A US 600113 A US600113 A US 600113A US 60011356 A US60011356 A US 60011356A US 2950643 A US2950643 A US 2950643A Authority US United States Prior art keywords reed plate cover opening accordion reed Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
