| 摘要 |
An electrical generator system is provided for use with a wheel, for example, a bicycle wheel. A bracket rotating with the wheel carried generator units each having a friction wheel to drive it. A fixed circular disc which is non-rotatable with the wheel is symmetrically arranged in the plane of the wheel. The friction wheels rotate to drive the generator units, the output of which is combined and directed to an appliance such as a lamp.
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