Emhart Industries, Inc.

Frank P Bares

Edward B Gardner

Bruce R Beckwith

Charles M Kingsbury

Clifford G Moon, Jr

A push button-actuated digital regulator circuit for use with inverter drives for use with inverter drives for A.C. motors of glassware manufacturing apparatus. The digital regulator responds to an operator is pushing UP and DOWN push buttons to increase or decrease the frequency of an oscillator output signal to the inverter. Maximum and minimum frequency limitations are preset at the oscillator and inhibit the operator command signal in the event a commanded increase or decrease would exceed one of the limits. A counter array provides adjustable frequency outputs to the inverter in binary-coded decimal. In a first embodiment, the circuit responds to continuous depression of one of the buttons by adjusting the output frequency at a rate established by an on-board oscillator. Alternatively, adjustment of the output over a plurality of frequency counts may require repeated pressing of the appropriate push button.

Push button digital regulator for A.C. inverter drives

A timing control system for the gob delivery system of a glassware forming machine of the rotating table type. Gob timing functions provide means to determine the drop times of each gob within a group of gobs. Adjusting means are provided to adjust the drop times of selected gobs to equalize drop times of all gobs within a group of gobs being delivered.

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New Hartford, CT, United States of America

Frank P Bares