(57) The present invention is directed towards the provision of a metering means which
is particularly adapted for use with mechanical petrol pumps; there is provided an
electronic metering means for a petrol pump comprising a flow meter connecting means
(11), signal generating means (6) operable by said connecting means to generate a
first electrical signal representative of the volume of petrol flow, price per unit
of petrol flow control means (7) to provide a second electrical signal representative
of the cost per unit volume, means (7) for generating a third electrical signal separating
the product of the first and second electrical signals, indicating means (8) to receive
the said third electrical signal and provide a required indication of the cost of
the petrol supplied; display means (9) connected to the first electrical signal indicate
the volume of petrol dispensed; magnetic means are provided to keep the displays set
at their last value even when actuating signals or power are not present; circuitry
provides slowing down of the pump-motor as the amount of petrol dispensed approaches
an even dollar value or a preset value and then switching off the pump-motor when
the required value is reached.
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