| 摘要 |
A music box record player rotates a disk with projections that engage starwheels that play a music unit, but instead of the music unit being mounted on a fixed sounding board, it is mounted on a movable tone arm over the disk. The disk has bearing tracks, and the music unit has surfaces that ride directly on the bearing tracks to support the music unit and the tone arm over the disk. An arm extends from the base of the music unit and transmits vibrations from the music unit to a speaker to sound a tune as the disk rotates.
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