| 摘要 |
A register designed to count and display cost on a gasoline dispensing pump. The register has a 100 cent wheel which is driven by a stepping motor. As the 100 cent wheel rotates it biases a spring which, after the 100 cent wheel has completed a revolution, incrementally drives a dollar register wheel. Likewise, as the dollar wheel rotates it biases a spring which, after the dollar wheel has completed a revolution, incrementally drives a 10 dollar register wheel. The energy stored in the springs is also utilized to reset the register to zero, such that all of the power utilized to both drive and reset the register is supplied by the stepping motor.
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