Failure indicating system for diode rectified alternating current generators utilzing a comparison of voltages

Claim 1

A MALFUNCTION INDICATING SYSTEM FOR AN ELECTRICAL SYSTEM THAT IS POWERED BY A DIODE-RECTIFIED ALTERNATING GENERATOR COMPRISING, AN ALTERNATING CURRENT GENERATOR HAVING A THREE PHASE OUTPUT WINDING, A THREE PHASE FULLWAVE BRIDGE RECTIFIER CONNECTED WITH SAID OUTPUT WINDING, A BATTERY, MEANS CONNECTING SAID BATTERY ACROSS THE D.C. OUTPUT TERMINALS OF SAID BRIDGE RECTIFIER, A VOLTAGE DIVIDING NETWORK CONNECTED ACROSS THE D.C. OUTPUT TERMINALS OF SAID BRIDGE RECTIFIER NETWORK AND ACROSS SAID BATTERY, SAID VOLTAGE DIVIDING NETWORK INCLUDING A FIRST REFERENCE POTENTIAL POINT, MEANS CONNECTED WITH SAID OUTPUT WINDING PROVIDING A SECOND REFERENCE POTENTIAL POINT, SAID VOLTAGE DIVIDING NETWORK BEING SO PROPORTIONED THAT SAID FIRST AND SECOND REFERENCE POTENTIAL POINTS HAVE SUBSTANTIALLY EQUAL POTENTIALS WHEN SAID ALTERNATOR AND BRIDGE RECTIFIER ARE OPERATING NORMALLY, AND AN INDICATOR CONNECTED BETWEEN SAID FIRST AND SECOND REFERENCE POTENTIAL POINTS, SAID INDICATOR BEING CAPABLE OF INDICATING A CONDITION WHERE THE POTENTIALS OF SAID FIRST AND SECOND REFERENCE POTENTIAL POINTS ARE NOT EQUAL.