Whistle with tone changing rotator

Details Whistle with tone changing rotator Whistle with tone changing rotator

G - Physics

10

K

G10K 5/00 (2006.01)

Patent

CA 2158907

A whistle including a body (10) having a resonating chamber (28) and a mouth piece (12) connected thereto includes a plurality of tone altering apertures (36) which extend to the chamber (28). A closure (40) is movably mounted on the body (10) between positions closing one, some or all of the tone altering apertures (36) so that the tone of the whistle may be selectively altered by selectively positioning the closure (40) in a desired one of its positions.

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