Accelerometer

Claim 1

IN AN ACCELEROMETER, A PAIR OF SPACED PHOTOCONDUCTIVE ELEMENTS, MEANS NORMALLY ILLUMINATING SAID PHOTOCONDUCTIVE ELEMENT SUBSTANTIALLY EQUALLY, A MASS DISPOSED BETWEEN SAID ILLUMINATING MEANS AND SAID ELEMENTS AND NORMALLY DISPOSED MEDIALLY WITH RESPECT TO SAID ELEMENTS, SAID MASS BEING MOVABLE IN OPPOSITE DIRECTIONS FROM SUCH MEDIAL POSITION IN RESPONSE TO POSITIVE AND NEGATIVE ACCELERATION FORCES TO VARY THE PROPORTIONATE DISTRIBUTION OF LIGHT AS BETWEEN SAID PHOTOCONDUCTIVE ELEMENTS, A D.C. POWER SUPPLY AND PARALLEL CONDUCTORS IN CIRCUIT THEREWITH, ONE OF SAID PHOTOCONDUCTIVE ELEMENTS AND A RESISTANCE BEING CONNECTED DIRECTLY IN SERIES WITH EACH OF SAID CONDUCTORS, MEANS CONNECTED ACROSS SAID CONDUCTORS BETWEEN THE PHOTOCONDUCTIVE ELEMENT AND SAID RESISTANCE OF EACH CONDUCTOR FOR INDICATING DEFLECTIONS OF SAID MASS AS EVIDENCED BY VARIATIONS IN PROPORTIONATE ILLUMINATION OF SAID PHOTOCONDUCTIVE ELEMENTS, A SECOND CONNECTION ACROSS SAID CONDUCTORS BETWEEN THE PHOTOCONDUCTIVE ELEMENT AND THE RESISTANCE OF EACH AND ELECTROMAGNETIC MEANS THEREIN ACTING AGAINST SAID MASS, WHEREBY MOVEMENTS OF SAID MASS PRODUCE ELECTROMAGNETIC RESTORING FORCES THEREAGAINST OPPOSITE IN DIRECTION TO THE DEFLECTION OF SAID MASS AND PROPORTIONATE TO THE DEGREE OF DEFLECTION.