1977-05-09
1979-09-18
Shay, F. Barry
A63H 500
Patent
active
041678311
ABSTRACT:
An improved instrument is provided for simulating melodious and harmonious sounds of singing birds, such as tropical varieties and the sounds of nighttime insects and small animals, such as the Puerto Rican "coqui". This instrument includes a construction of a plurality of axially aligned air chambers, each having an opening with beveled edges having a bevel angle of 30.degree. into the interior of the respective air chambers, so that upon movement of the instrument through the air by swinging and rotating, a wide variety of melodious and harmonious sounds are produced resembling those of birds and nighttime insects and animals. The plurality of air chambers may be cylindrical, conical or a combination of cylindrical and conical air chambers, and further each air chamber may be sub-divided into two, three, or four sub-chambers, wherein each sub-chamber also includes one opening having beveled edges with a bevel angle of 30.degree. into the interior of the sub-chamber.
REFERENCES:
patent: 138365 (1873-04-01), Ball
patent: 143044 (1873-09-01), Waters
patent: 157095 (1874-11-01), Hawk
patent: 1257448 (1918-02-01), Belton
patent: 2727333 (1955-12-01), Robles
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