Continuing power supply system

Claim 1

APPARATUS FOR SUPPLYING ALTERNATING CURRENT ELECTRICAL ENERGY OF SUBSTANTIALLY CONSTANT VOLTAGE TO A SUBSTANTIALLY CONSTANT LOAD ADAPTED TO TOLERATE CHANGES IN FREQUENCY BUT NOT VOLTAGE AND FOR PRODUCING SAID ENERGY FROM A MAIN POWER SOURCE OF ALTERNATING CURRENT ELECTRICAL ENERGY SUBJECT TO TEMPORARY INTERRUPTTION, SAID APPARATUS COMPRISING: AN ELECTRIC MOTOR ELECTRICALLY COUPLED WITH SAID MAIN SOURCE AND HAVING A ROTOR DRIVEN BY ENERGY FROM THE LATTER; FLYWHEEL MEANS MECHANICALLY COUPLED WITH SAID MOTOR ROTOR; AN ALTERNATING CURRENT GENERATOR HAVING A ROTOR MECHANICALLY COUPLED WITH SAID MOTOR ROTOR, AN EXCITATION CONNECTION, AND AN OUTPUT CONNECTION; MMEANS FOR ELECTRICALLY COUPLING SAID OUTPUT CONNECTION WITH SAID LOAD; AN AUXILIARY POWER SOURCE OF DIRECT CURRENT ELECTRICAL ENERGY OF SUBSTANTIALLY CONSTANT VOLTAGE; AND REGULATOR MEANS ELECTRICALLY COUPLING SAID AUXILIARY SOURCE WITH SAID EXCITATION CONNECTION, SAID REGULATOR MEANS BEING ELECTRICALLY COUPLED WITH SAID OUTPUT CONNECTION FOR ADJUSTING THE EXCITATION TO SAID GENERATOR RESPONSIVE TO THE VOLTAGE LEVEL OF THE GENERATOR OUTPUT FROM SAID OUTPUT CONNECTION TO MAINTAIN SAID VOLTAGE LEVEL OF THE GENERATOR OUTPUT SUBSTANTIALLY CONSTANT DURING TEMPORARY PERIODS OF INTERRUPTION OF SAID MAIN SOURCE AND RESULTANT DECREASE IN THE FREQUENCY OF SAID GENERATOR OUTPUT DURING SAID PERIODS WHEN SAID GENERATOR ROTOR IS BEING MECHANICALLY DRIVEN ONLY BY THE INERTIA OF SAID FLYWHEEL MEANS, WHEREBY TO PROVIDE SAID ALTERNATING CURRENT ELECTRICAL ENERGY OF SUBSTANTIALLY CONSTANT VOLTAGE AT SAID OUTPUT CONNECTION OF THE GENERATOR.