Can testing machine

Claim 1

A MACHINE FOR DETECTING AND EJECTING SEALED CANS HAVING ABNORMALLY CONTOURED END PANELS, COMPRISING; A CAN RUNWAY IN WHICH THE CANS ARE ADVANCED WITH THEIR AXES NORMAL TO THE DIRECTION OF ADVANCEMENT A PAIR OF PROBE ARMS PIVOTALLY MOUNTED ADJACENT ONE OF THE ENDS THEREOF ON OPPOSITE SIDES OF SAID RUNWAY AND DISPOSED IN TRANSVERSE ALIGNMENT, MEANS FOR RESILIENTLY URGING EACH OF SAID PROBE ARMS INWARDLY TO A POSITION WHEREIN THE FREE END PORTION THEREOF EXTENDS INTO SAID RUNWAY IN THE PATH OF THE CANS, EACH OF SAID PROBE ARMS BEING OF SUBSTANTIALLY RIGID CONSTRUCTION AND HAVING ON ITS INNER SURFACE A GRADUALLY INWARDLY EXTENDING CAM PORTION FOR ENGAGING THE ADJACENT END SEAMS OF THE CANS TO CENTER THEM IN THE RUNWAY. SAID CAM PORTION MERGING INTO A FEELER PORTION FORMED ON THE INNER SURFACE OF EACH OF SAID PROBE ARMS ADJACENT THE FREE END PORTION THEREOF AND ADAPTED TO RIDE OVER THE ADJACENT END SEAMS OF THE CANS AND TO ENGAGE THE ADJACENT END PANELS OF THE CANS AFTER THEY ARE CENTERED IN SAID RUNWAY BY SAID CAM PORTIONS, A DETECTOR SWITCH DISPOSED ADJACENT EACH OF SAID PROBE ARMS AND OPERABLE THEREBY WHEN SAID PROBE ARMS ENGAGE ABNORMALLY CONTOURED END PANELS, A MASTER SWITCH CONNECTED TO SAID DETECTOR SWITCHES AND HAVING AN ACTUATING MEMBER MOUNTED IN SAID RUNWAY IN TRANSVERSE ALIGNMENT WITH SAID FEELER PORTIONS OF SAID PROBE ARMS, SAID ACTUATING MEMBER BEING ENGAGEABLE BY THE CANS IN SAID RUNWAY TO ACTUATE SAID MASTER SWITCH ONLY WHEN SAID FEELER PORTIONS OF SAID PROBE ARMS ARE IN ENGAGEMENT WITH THE CENTRAL PORTION OF THE CAN END PANELS, EJECTOR MEANS FOR EJECTING CANS HAVING ABNORMALLY CONTOURED END PANELS, AND A CONTROL CIRCUIT FOR OPERATING SAID EJECTOR MEANS, SAID CONTROL CIRCUIT INCLUDING SAID DETECTOR SWITCHES AND SAID MASTER SWITCH, SAID MASTER SWITCH BEING CONNECTED INTO SAID CONTROL CIRCUIT IN SERIES WITH SAID DETECTOR SWITCHES SO THAT SAID DETECTOR SWITCHES ALONE ARE NOT OPERABLE TO CAUSE EJECTION OF CANS HAVING ABNORMALLY CONTOURED END PANELS.