Analog to binary coded decimal encoder

Claim 1

AN ANALOG TO BINARY DECIMAL ENCODER COMPRISING FIRST AND SECOND CARRIAGES MECHANICALLY INTERCONNECTED SO THAT SAID SECOND CARRIAGE ROTATES ONCE FOR EVERY TEN REVOLUTIONS OF SAID FIRST CARRIAGE, A PLURALITY OF CODE TRACKS ON SAID SECOND CARRIAGE DIVIDED INTO A FIRST GROUP OF CODE TRACKS FOR INDICATING DECIMAL NUMBERS FROM 0 TO 9 IN BINARY FORM AND A SECOND GROUP OF CODE TRACKS FOR INDICATING FRACTIONS OF EACH OF SAID DECIMAL NUMBERS IN BINARY FORM, SAID FIRST CARRIAGE HAVING A PLURALITY OF CODE TRACKS THEREON INCLUDING AT LEAST A FIRST GROUP OF CODE TRACKS FOR INDICATING DECIMAL NUMBERS FROM 0 TO 9 IN BINARY FORM, AND MEANS FOR READING OUT THE BINARY NUMBERS INDICATED BY THE CODE TRACKS ON SAID CARRIAGES, SAID MEANS INCLUDING INCREMENTAL CHARGER MEANS FOR INDICATING THE BINARY NUMBER OF SAID FIRST GROUP OF CODE TRACKS ON SAID SECOND CARRIAGE, AND CIRCUIT MEANS CONNECTED TO SAID INCREMENTAL CHANGER MEANS FOR ADDING AND SUBTRACTING ONE WHEN NECESSARY TO COMPENSATE FOR TRANSITION ERRORS IN GOING FROM ONE NUMBER TO THE NEXT, SAID CIRCUIT MEANS BEING CONTROLLED BY THE FRACTIONAL NUMBER INDICATED BY SAID SECOND GROUP OF CODE TRACKS ON SAID SECOND CARRIAGE AND A SIGNAL FROM SAID FIRST GROUP OF CODE TRACKS ON SAID FIRST CARRIAGE INDICATING WHETHER THE DECIMAL NUMBER THEREOF IS BETWEEN 0 AND 4 OR 5 AND 9.