High speed weighing system using an automatically balanced electrical circuit to provide a digital indication

Claim 1

AN ELECTRONIC HIGH SPEED WEIGHING SYSTEM COMPRISING A FIRST VOLTAGE SOURCE FOR ESTABLISHING A VOLTAGE FUNCTIONALLY RELATED TO THE WEIGHT OF AN ARTICLE TO BE WEIGHED, VOLTAGE GENERATING MEANS FOR GENERATING A LINEARLY INCREASING REFERENCE VOLTAGE, MEANS FOR PROVIDING CONSTANT FREQUENCY SIGNALS, A COUNTING AND INDICATING SYSTEM INCLUDING COUNTING MEANS CONNECTED TO RECEIVE SAID CONSTANT FREQUENCY SIGNALS, COUNTER GATING MEANS CONNECTED TO CONTROL THE FLOW OF SAID CONSTANT FREQUENCY SIGNALS TO SAID COUNTING MEANS, SAMPLING MEANS TO PROVIDE A SAMPLING PULSE TO INITIATE THE OPERATION OF SAID WEIGHING SYSTEM, RESET GATE MEANS HAVING PLURAL OUTPUT TERMINALS CONNECTED TO SAID SAMPLING MEANS, SAID RESET GATE MEANS OPERATING UPON THE RECEPTION OF A SAMPLING PULSE FROM SAID SAMPLING MEANS TO PROVIDE A FIRST OUTPUT PULSE AT ONE OF SAID PLURAL OUTPUT TERMINALS, AND SUBSEQUENT THERETO, A SECOND OUTPUT PULSE AT ANOTHER OF SAID OUTPUT TERMINALS, A RESET UNIT CONNECTED TO RECEIVE THE FIRST OUTPUT PULSE FROM SAID RESET GATE MEANS, SAID RESET UNIT OPERATING UPON THE RECEPTION OF SAID FIRST OUTPUT PULSE TO PROVIDE A SIGNAL TO ZERO SAID COUNTING MEANS, RAMP GATE MEANS CONNECTED TO RECEIVE SAID SECOND OUTPUT PULSE FROM SAID RESET GATE MEANS SUBSEQUENT TO THE RESETTING OF SAID COUNTER MEANS, SAID RAMP GATE MEANS OPERATING TO SIMUL-