| 摘要 |
A hand-held noisemaker for use at sporting and other events. A dome-shaped, metal ringer is secured to a shallow, cup-shaped base by a lock knob having a parallel pair of barbed ends inserted into a keyway cutout of an upstanding boss within the base. A depending, cylindrical wall portion of the ringer is received within an annular recess of the base, but touches no part of the base. Whenever the noisemaker is shaken, and whenever two noisemakers are clapped together, a spherical ball within a closed, annular space defined by the ringer and base strikes the ringer, causing the ringer to emit a ringing sound. |
