Push button mechanism

Claim 1

A TWO BUTTON INTERLOCK MECHANISM COMPRISING A BASE, TWO PUSH RODS MOUNTED ON SAID BASE IN SPACED PARALLEL LATERALLY OFFSET RELATION FOR LONGITUDINAL MOVEMENT, MEANS FOR BIASING SAID TWO RODS TO A NORMAL OUT POSITION, A TREADLE BAR PIVOTALLY SECURED ON SAID BASE AT A POINT BETWEEN SAID RODS, SAID TREADLE BAR HAVING ARM PORTIONS EXTENDING FROM THE PIVOT REGION LATERALLY OF SAID RODS, SNAP ACTION MEANS FOR BIASING SAID TREADLE BAR TO EITHER OF TWO STABLE POSITIONS, SAID TREADLE BAR BEING ROCKABLE IN A PLANE PARALLEL TO THE TWO RODS, MEANS COUPLING SAID RODS TO THE ARM PORTIONS OF THE TREADLE BAR WHEREBY THE MOVEMENT OF A ROD TO AN IN POSITION DRIVES ITS CORRESPONDING TREADLE BAR ARM, ALTERNATE MOVEMENT OF THE PUSH RODS CAUSING TREADLE BAR OPERATION, A LATCH BAR MOVABLE IN A STRAIGHT LINE TRANSVERSELY TO THE LINES OF MOTION OF THE RODS, MEANS FOR BIASING SAID LATCH BAR TO ONE POSITION, SAID LATCH BAR HAVING CAM AND STOP PORTIONS FOR EACH PUSH ROD, SAID COUPLING MEANS FOR A ROD AND TREADLE BAR ARM ALSO COOPERATING WITH A CAM AND STOP PORTION ON THE LATCH BAR, THE CAM PORTION BEING SHAPED SO THAT MOVEMENT OF ITS ROD FROM ONE POSITION TO ITS OTHER POSITION CAUSES THE LATCH BAR TO BE MOVED AGAINST ITS BIAS, THE STOP PORTION COOPERATING WITH THE SAME ROD TO RETAIN SAID ROD IN ITS OTHER POSITION, THE REMAINING ROD WHEN OPERATING SERVING TO RELEASE THE LOCK BETWEEN THE STOP PORTION AND ROD.