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SILVANI BOLZONI SILVANO
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SILVANI BOLZONI SILVANO
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Application filed by SILVANI BOLZONI SILVANOfiledCriticalSILVANI BOLZONI SILVANO
Priority to ES87051UpriorityCriticalpatent/ES87051Y/en
Publication of ES87051UpublicationCriticalpatent/ES87051U/en
Application grantedgrantedCritical
Publication of ES87051YpublicationCriticalpatent/ES87051Y/en
An imitative whistle of the trill of the birds, characterized in that the modulation of the air causing the chirping effect is produced by the effect of an oscillating piece in the form of a lever, one of whose arms simulates the lower part of the beak and the other ends in an inclined expansion at an acute angle that, interposed in front of the slit through which the column of air producing the whistle exits, moves by reaction and then falls by its own weight, causing an uninterrupted vibratory movement while the insufflation of air lasts. (Machine-translation by Google Translate, not legally binding)