Method and apparatus for testing paper currency and the like

Claim 1

A DEVICE FOR TESTING TO DETERMINE THE ACCEPTABILITY OF A SHEET MATERIAL CAPABLE OF TRANSMISSION OF RADIATIONS, PORTIONS OF WHICH ARE CAPABLE OF HIGH TRANSMISSION WHILE OTHERS ARE CAPABLE ONLY OF LOW TRANSMISSION, INCLUDING A MEANS FOR INTRODUCING THE MATERIAL TO A TEST POSITION, A SOURCE OF RADIATIONS ON ONE SIDE OF THE MATERIAL WHEN IN TEST POSITION, A PLURALITY OF RADIATION RESPONSIVE CELLS ON THE OPPOSITE SIDE OF THE MATERIAL IN TEST POSITION SOME OF WHICH ARE POSITIONED TO UNDERLIE AREAS OF THE MATERIAL CALCULATED TO BE CAPABLE OF HIGH TRANSMISSION AND OTHERS OF WHICH ARE IN POSITION TO UNDERLIE AREAS OF THE MATERIAL CALCULATED TO BE CAPABLE OF LOW TRANSMISSION, AN ELECTRICAL CIRCUIT HAVING SWITCH MEANS THEREIN SOME OF WHICH ARE OPEN AND SOME OF WHICH ARE CLOSED, MEANS CONTROLLING THE CLOSED SWITCH MEANS THROUGH THE RESPONSE OF THE CELLS UNDERLYING AREAS HAVING LOW TRANSMISSION WHEREBY THE CLOSED SWITCH MEANS ARE OPENED TO INTERRUPT THE CIRCUIT IN THE EVENT OF TRANSMISSION OF EXCESSIVE RADIATIONS TO SAID LAST MENTIONED CELLS, MEANS CONTROLLING THE OPEN SWITCH MEANS THROUGH THE RESPONSE OF THE CELLS UNDERLYING THE AREAS CALCULATED TO HAVE HIGH TRANSMISSION WHEREBY THE OPEN SWITCH MEANS ARE CLOSED IN RESPONSE TO THE TRANSMISSION OF SUFFICIENT RADIATIONS THROUGH THE MATERIAL TO THE CELLS, THE IMPROVEMENT WHICH COMPRISES MEANS FOR INITIALLY CONNECTING THE CELLS UNDERLYING THE AREAS CALCULATED TO HAVE HIGH TRANSMISSION WITH THE CLOSED SWITCH MEANS, MEANS FOR SETTING THE CURRENT FROM THE CELLS WHEREBY THE CLOSED SWITCH MEANS ARE OPENED IN RESPONSE TO THE TRANSMISSION OF EXCESSIVE RADIATIONS THROUGH THE MATERIAL TO THE CELLS, AND MEANS FOR SUBSEQUENTLY SHORT-CIRCUITING SAID LATTER MEANS FOR RECONNECTING THE CELLS WITH THE OPEN SWITCH MEANS FOR CLOSING THE OPEN SWITCH MEANS IN RESPONSE TO THE TRANSMISSION OF SUFFICIENT RADIATIONS THROUGH THE MATERIAL TO THE CELLS.

Claim 2

A DEVICE FOR TESTING TO DETERMINE THE ACCEPTABILITY OF A SHEET MATERIAL CAPABLE OF TRANSMISSION OF RADIATIONS, PORTIONS OF WHICH ARE CAPABLE OF HIGH TRANSMISSION WHILE OTHERS ARE CAPABLE ONLY OF LOW TRANSMISSION, INCLUDING A MEANS FOR INTRODUCING THE MATERIAL TO A TEST POSITION, A SOURCE OF RADIATIONS ON ONE SIDE OF THE MATERIAL WHEN IN TEST POSITION, A PLURALITY OF RADIATION RESPONSIVE CELLS ON THE OPPOSITE SIDE OF THE MATERIAL IN TEST POSITION SOME OF WHICH ARE POSITIONED TO UNDERLIE AREAS OF THE MATERIAL CALCULATED TO BE CAPABLE OF HIGH TRANSMISSION AND OTHERS OF WHICH ARE IN POSITION TO UNDERLIE AREAS OF THE MATERIAL CALCULATED TO BE CAPABLE OF LOW TRANSMISSION, AN ELECTRICAL CIRCUIT HAVING SWITCH MEANS THEREIN SOME OF WHICH ARE OPEN AND SOME OF WHICH ARE CLOSED, MEANS CONTROLLING THE CLOSED SWITCH MEANS THROUGH THE RESPONSE OF THE CELLS UNDERLYING AREAS HAVING LOW TRANSMISSION WHEREBY THE CLOSED SWITCH MEANS ARE OPENED TO INTERRUPT THE CIRCUIT IN THE EVENT OF TRANSMISSION OF EXCESSIVE RADIATIONS TO SAID LAST MENTIONED CELLS, MEANS CONTROLLING THE OPEN SWITCH MEANS THROUGH THE RESPONSE OF THE CELLS UNDERLYING THE AREAS CALCULATED TO HAVE HIGH TRANSMISSION WHEREBY THE OPEN SWITCH MEANS ARE CLOSED IN RESPONSE TO THE TRANSMISSION OF SUFFICIENT RADIATIONS THROUGH THE MATERIAL TO THE CELLS, THE IMPROVEMENT WHICH COMPRISES MEANS FOR INITIALLY CONNECTING THE CELLS UNDERLYING THE AREAS CALCULATED TO HAVE HIGH TRANSMISSION WITH THE CLOSED SWITCH MEANS, MEANS FOR SETTING THE CURRENT FROM THE CELLS WHEREBY THE CLOSED SWITCH MEANS ARE OPENED IN RESPONSE TO THE TRANSMISSION OF EXCESSIVE RADIATIONS THROUGH THE MATERIAL TO THE CELLS, AND MEANS FOR SUBSEQUENTLY SHORT-CIRCUITING SAID LATTER MEANS FOR RECONNECTING THE CELLS WITH THE OPEN SWITCH MEANS FOR CLOSING THE OPEN SWITCH MEANS IN RESPONSE TO THE TRANSMISSION OF SUFFICIENT RADIATIONS THROUGH THE MATERIAL TO THE CELLS.