Time keeping apparatus

Claim 1

A SECONDARY CLOCK COMPRISING: A MOTOR MEANS; A ROTATABLE TIME MEMBER; DRIVE MEANS OPERABLY CONNECTING SAID MOTOR MEANS AND SAID TIME MEMBER FOR DRIVING SAID TIME MEMBER AT A NORMAL TIME KEEPING RATE; A FIRST CORRECTION GEAR OPERABLY CONNECTED TO SAID TIME MEMBER AND NORMALLY ROTATING AT A PREDETERMINED RATE; A SECOND CORRECTION GEAR OPERABLY CONNECTED TO SAID MOTOR MEANS AND NORMALLY ROTATING AT A RELATIVELY HIGH RATE, SAID FIRST AND SECOND CORRECTION GEARS HAVING GENERALLY PARALLEL AXES OF ROTATION; NORMALLY STATIONARY ROTATABLY PINION MEANS SELECTIVELY MOVABLE IN A DIRECTION GENERALLY TRANSVERSE TO THE AXIS OF ROTATION OF SAID CORRECTION GEARS BETWEEN AN INACTIVE POSITION WHEREIN SAID PINION MEANS IS DISCONNECTED FROM SAID DRIVE MEANS AND IS NOT ROTATED BY SAID DRIVE MEANS, AND A CORRECTING POSITION WHEREIN SAID PINION MEANS OPERABLY CONNECTS SAID FIRST AND SECOND CORRECTION GEARS SO THAT SAID FIRST CORRECTION GEAR IS DRIVEN AT AN ACCELERATED RATE; MEANS NORMALLY MAINTAINING SAID PINION MEANS IN SAID INACTIVE POSITION; SIGNAL RESPONSIVE MEANS ADAPTED UPON RECIPT OF A CORRECTIVE SIGNAL TO MOVE SAID PINION MEANS TO SAID CORRECTING POSITION; AND MEANS FOR INTERRUPTING THE ACCELERATED DRIVE OF SAID FIRST CORRETION GEAR WHEN SAID TIME MEMBER IS IN A PREDETERMINED ANGULAR POSITION.