Electric chronometer with binary readout

Claim 1

A chronometer comprising: a series of seconds indicators having assigned seconds values in a first binary counting sequence; a series of minutes indicators having assigned minutes values in a second binary counting sequence; a series of hours indicators having assigned hours values in a third binary counting sequence; a source of dc electric power for energizing said indicators; a pulse generator producing an output of pulses of one-second intervals; a seconds counter actuated by said generator output to count seconds from 1 to 60, said counter including means triggered by its 60th counts to deliver seconds output pulses at one-minute intervals; a minutes counter actuated by said seconds output pulses at oneminute intervals to count minutes from 1 to 60, said minutes counter including means triggered by its 60th count to deliver minutes output pulses at one-hour intervals; means controlled by said seconds and minutes counting to energize said seconds and minutes indicators respectively in said binary counting sequences; an hours counter triggered by said minutes output pulses to count hours of the day, said hours counter including means triggered by a terminal count thereof for resetting its counting to a starting count; means controlled by said hours counting to energize said hours indicators; said hours counts being restricted to a 1 to 12 count; said resetting means being triggered by the twelfth hour count thereof; a pair of AM, PM indicators; and a flip-flop circuit triggered by each twelfth count of said hours counter for energizing said AM, PM indicators in alternating succession.