System for providing a range of determinate frequencies from a variable speed source

Claim 1

IN COMBINATION, FIRST VARIABLE FREQUENCY MEANS FOR PRODUCING A CHOSEN PLURALITY OF LIKE BALANCED PHASE SINUSOIDAL OUTPUTS, SECOND MEANS IN CIRCUIT WITH SAID FIRST MEANS FOR CONVERTING SAID SINUSOIDAL OUTPUTS TO COSINUSOIDAL OUTPUTS, A SOURCE OF REFERENCE VOLTAGE HAVING A SUBSTANTIALLY CONSTANT FREQUENCY WHICH IS APPRECIABLY LESS THAN THE LOWEST FREQUENCY OF SAID VARIABLE FREQUENCY, SAID SOURCE HAVING AN AMOUNT KOF BALANCED PHASE OUTPUTS EQUAL TO SAID CHOSEN PLURALITY, SAID CHOSEN PLURALITY OF THIRD MEANS, EACH IN CIRCUIT WITH SAID FIRST MEANS FOR PRODUCING FIRST SIGNAL CONDITIONS REPRESENTATIVE OF THE RESPECTIVE VOLTAGES ACROSS SILICON CONTROLLED RECTIFIERS DURING THEIR CONDUCTIVE STATES, SECOND SIGNAL CONDITIONS REPRESENTATIVE OF THE RESPECTIVE VOLTAGES ACROSS SILICON CONTROLLED RECTIFIERS DURING THEIR NONCONDUCTIVE STATES, AND THIRD SIGNAL CONDITIONS REPRESENTATIVE OF VOLTAGES WHICH ARE PROPORTIONAL TO THE CURRENTS OF SAID OUTPUTS, SAID CHOSEN PLURALITY OF FOURTH MEANS, EACH OF SAID FOURTH MEANS BEING IN CIRCUIT WITH SAID SECOND MEANS, A CORRESPONDING ONE OF SAID THIRD MEANS, AND A CORRESPONDING ONE OF THE OUTPUTS OF SAID REFERENCE VOLTAGE SOURCE FOR MIXING THE OUTPUTS OF SAID SECOND MEANS WITH A REFERENCE VOLTAGE OUTPUT, FOR MODULATING THE RESULTANT OF SAID MIXING WITH SAID FIRST SIGNALS AND FOR APPLYING SAID THIRD SIGNALS TO SAID MODULATED RESULTANT, TO PRODUCE REPRESENTATIVE OUTPUTS OF SAID