Testing and sorting circular articles

Claim 1

APPARATUS FOR TESTING AND SORTING ARTICLES OF CIRCULAR SECTION, SAID APPARATUS COMPRISING A FIRST GROUP OF ELECTRICAL SWITCHES, A CONTACT PLATE RESILIENTLY MOUNTED ABOVE SAID SWITCHES, A CONTACT PLATE RESILIENTLY MOUNTED ABOVE SAID SWITCHES AND CONSTITUTING A TEST PATH ALONG WHICH ARTICLES TO BE TESTED MAY BE ROLLED, SAID CONTACT PLATE BEING ADAPTED TO ACTUATE SAID SWITCHES WHEN IT IS DISPLACED VERTICALLY BY MORE THAN A PREDETERMINED AMOUNT, A PAIR OF LATERALLY SPACED MOVING BELTS EXTENDING ABOVE AND ALONG THE LENGTH OF SAID CONTACT PLATE FOR ENGAGING ARTICLES BEING TESTED AND ROLLING THEM ON SAID CONTACT PLATE, A SECOND GROUP OF ELECTRICAL SWITCHES ASSOCIATED WITH EACH OF SAID MOVING BELTS AND ADAPTED TO BE ACTUATED WHEN SAID BELTS ARE DISPLACED VERTICALLY BY MORE THAN A PREDETERMINED AMOUNT, A GUIDE RAIL EXTENDING LONGITUDINALLY OF EACH SIDE OF SAID CONTACT PLATE, FOR GUIDING ARTICLES BEING ROLLED ON SAID CONTACT PLATE, A FIRST EXIT MEANS ARRANGED IN THE PATH OF TRAVEL OF ARTICLES BEING ROLLED ON SAID CONTACT PLATE FOR RECEIVING UNSATISFACTORY ARTICLES, SAID EXIT MEANS HAVING A NORMALLY CLOSED APERTURE, AN ELECTROMAGNET CONNECTED WITH SAID MEANS FOR OPENING SAID APERTURE, SAID ELECTROMAGNET BEING OPERATED UPON ACTUATION OF ANY ONE OF THE SWITCHES IN THE FIRST-MENTIONED GROUP OF SWITCHES, AND BEING OPERATED UPON ACTUATION OF ANY ONE OF THE SWITCHES IN THE SECOND-MENTIONED GROUP OF SWITCHES, AND SECOND EXIT MEANS ARRANGED IN THE PATH OF TRAVEL OF ARTICLES BEING TESTED FOR RECEIVING SATISFACTORY ARTICLES AND LOCATED BEYOND SAID FIRST EXIT MEANS.