Semi-automatic reproduction device for sound carriers in disc form

Claim 1

A SEMI-AUTOMATIC, SIDE-INSERTION PHONOGRAPH FOR RECORDS OF DIFFERENT DIAMETERS HAVING A DRIVING MOTOR AND COMPRISING A PLURALITY OF FEELERS FOR SCANNING THE DIAMETER OF THE RECORD BEFORE IT REACHES THE PREDETERMINED POSITION FOR PLAYING, A SPRING, SHIFTABLE SLIDE MOVABLE AGAINST SAID SPRING IN THE DIRECTION OF INSERTION OF SAID PHONOGRAPH RECORD, SAID FEELERS COACTING WITH SAID SHIFTABLE SLIDE, MEANS OPERATIVELY CONNECTED TO SAID SLIDE WHEREBY THE SHIFTING OF SAID SLIDE CONTROLS THE PERMITTED DEPTH OF INSERTION OF SAID RECORD AND THE CENTERING OF THE INSERTED RECORD AND THE SWITCHING ON OF SAID DRIVING MOTOR, SAID FEELERS COMPRISING AT LEAST ONE STUD ENGAGING THE EDGE OF SAID RECORD, A FEELER LEVER INCLUDING A PLURALITY OF OTHER STUDS THEREON, A TRAP FOR SELECTED STUDS WHICH TRAPS THE SELECTED STUD CORRESPONDING TO A CERTAIN DIAMETER RECORD MOMENTARILY BEFORE THE RECORD REACHES ITS POSITION FOR PLAYING, AND COUPLING MEMBERS CONNECTED TO SAID TRAP WHEREBY WHEN SAID TRAP IS CLOSED THE FURTHER COURSE OF THE SWITCHING OPERATION IS CONTROLLED.