发明授权
摘要:
A savings coin box with controllable music box which includes a body, a music box, a control device and other elements. The music box is transversely positioned on the supporting disk on the cylindrical body, and a control device is installed above the music box. According to this structure, when a coin is thrown from a guiding rail, the extending rod of the control device is driven so that the music box will not be confined and the potential power is released. When the control disk of the control device is rotated through a predetermined angle, the music box is again limited by the extending rod, and then it is stopped.
公开/授权文献
- US4719343A Phase retarding laser radiation detection system 公开/授权日:1988-01-12
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