Apparatus for processing decimal numbers

Claim 1

IN COMBINATION, A REGISTER COMPRISING A PLURALITY OF INPUT TERMINALS EACH REPRESENTING A DIGIT POSITION, A PLURALITY OF OUTPUT TERMINALS EACH REPRESENTING A DIGIT VALUE, AND SWITCHING MEANS FOR CONNECTING EACH OF THE SAID INPUT TERMINALS WITH ONE OF THE SAID OUTPUT TERMINALS IN ACCORDANCE WITH A REGISTERED NUMBER, AN ADDING MACHINE OF THE TEN KEYS TYPE, COMPRISING A PLURALITY OF DIGIT KEYS, A PLURALITY OF FUNCTION KEYS, A PIN CARRIAGE, MEANS OPERATED BY THE SAID DIGIT KEYS FOR DISPLACING SAID PIN CARRIAGE STEP BY STEP AS A SEQUENCE OF DIGITS ARE ENTERED BY MEANS OF SAID DIGIT KEYS, A SENSING CONTACT ATTACHED TO SAID PIN CARRIAGE, MEANS FOR SUPPLYING A VOLTAGE TO SAID SENSING CONTACT, AND A PLURALITY OF FIXED CONTACTS SUCCESSIVELY ENGAGED BY SAID SENSING CONTACT DURING THE STEPWISE MOVEMENT OF SAID PIN CARRIAGE, A PLURALITY OF CONDUCTORS EACH CONNECTING ONE OF THE SAID FIXED CONTACTS WITH ONE OF THE SAID INPUT TERMINALS, AND A PLURALITY OF OPERATING ELECTROMAGNETS EACH ADAPTED TO BE ENERGIZED THROUGH ONE OF THE SAID OUTPUT TERMINALS AND EACH ARRANGED IN OPERATIVE ASSOCIATION WITH ONE OF THE SAID DIGIT KEYS SO AS TO OPERATE THE SAME WHEN ENERGIZED.