| 摘要 |
Multiple product gasoline dispensing apparatus having a variator presettable for programming a three-place unit volume price for each of the gasoline products. Three coaxial drive ratchet assemblies each comprising a bank of angularly settable ratchet wheels are provided for programming the units, tens, and hundreds places of the unit volume price. A stepping unit pivotally mounted to be oscillated about the axis of the coaxial ratchet wheels comprises a drive pawl for each of the ratchet wheels and three coaxial selector cams for the three ratchet assemblies for selectively activating the pawls for driving corresponding ratchet wheels as the stepping unit is oscillated. The selector cams are connected to be angularly set by a product selector knob and the indexing unit is connected to be oscillated to set the variator in accordance with the angular settings of the selected ratchet wheels when the gasoline cost and volume registers are reset just prior to the commencement of a fuel delivery.
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