Accounting apparatus

Claim 1

IN AN ACCOUNTING APPARATUS THE COMBINATION OF A PLURALITY OF CARDS FILED IN A COMPARTMENT, EACH OF SAID CARDS HAVING A FIRST SET OF SPACED CONDUCTING LINES AND A SECOND SET OF SPACED CONDUCTING LINES CROSSING SAID FIRST SET AT INDEX POINTS, MEANS FOR SELECTIVELY CONNECTING SAID LINES AT SAID INDEX POINTS, A PLURALITY OF CONDUCTORS EXTENDING LONGITUDINALLY OF SAID COMPARTMENT ACROSS SAID CARDS AND EACH CONTACTING THE CORRESPONDING LINES OF ONE OF SAID SETS OF ALL OF SAID DEVICES WHEREBY SAID CARDS ARE CONNECTED IN PARALLEL TO BE SENSED SIMULTANEOUSLY, AN ELECTRIC POWER SOURCE HAVING LEADS, A PLURALITY OF SPACED GROUPS OF CONTACTS EACH ASSOCIATED WITH ONE OF SAID CARDS, EACH GROUP EXTENDING TRANSVERSELY OF SAID COMPARTMENT AND THE CONTACTS OF EACH GROUP CONTACTING ONE OF THE LINES OF SAID OTHER SET, CIRCUIT COMPLETION ELEMENTS CONNECTED TO ONE LEAD OF SAID POWER SOURCE FOR TRANSMITTING A SERIES OF IMPULSES TO SELECTED ONES OF SAID CONDUCTORS, MEANS CONNECTED TO THE OTHER LEAD OF SAID POWER SOURCE AND ASSOCIATED WITH SAID CARDS AND FIXED IN POSITION RELATIVE THERETO FOR SUCCESSIVELY CONTACTING SAID CONTACTS OF SAID GROUPS IN TIMED RELATION TO SAID IMPULSES, AND MEANS CONTROLLED BY THE TRANSMITTAL OF IMPULSES THROUGH SAID CARDS FOR BREAKING THE CIRCUIT OF ANY THEREOF ON INTERRUPTION OF THE TRANSMITTAL OF ANY OF SAID IMPULSES THERETHROUGH.