| 摘要 |
A pair of handles mounted individually on the ends of a coil spring, the ends of the coil spring extending longitudinally into the ends of the handles, and the coil spring thereby being positioned beyond the handles. A battery is positioned on one handle, and a light bulb and timer in the other handle. A circuit includes conductors, one of which is the coil spring, connecting the battery and the light bulb and timer, and contacts in the ends of the handles that are remote from the coil spring, and upon interengagement of the contacts they complete the circuit and turn on the light bulb and the timer. In squeezing the handles, in exercising the hand, illumination of the light signals the interengagement of the handles. The light bulb also illuminates the timer.
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