Phonographic apparatus

Claim 1

IN A PHONOGRAPH APPARATUS IN WHICH A GROOVED RECORD IS ADAPTED TO BE ROTATED AND A STYLUS IS ARRANGED TO FOLLOW SAID GROOVE TO VIBRATE IN ACCORDANCE WITH THE VARIATIONS OF THE GROOVE CONFIGURATION TO PRODUCE THEREBY A SIGNAL AMPLIFIABLE TO AUDIBLE SOUND AND INCLUDING, A TURNTABLE FOR SUPPORTING SAID RECORD DURING PLAY, MEANS INCLUDING A MOTOR FOR DRIVING THE TURNTABLE AT ANY ONE OF SEVERAL PRE-SELECTED SPEEDS, MEANS, INCLUDING A SPINDLE ASSEMBLY, FOR CARRYING A STACK OF RECORDS THEREON AND DROPPING SAME SERIATIM UPON SAID TURNTABLE, A PIVOTAL STYLUS ARM FOR MOUNTING OF THE STYLUS; THE INVENTION HEREIN COMPRISING: CYCLING MEANS FOR OPERATING SAID APPARATUS IN A COORDINATED SEQUENCE AND INCLUDING INDEXING MEANS ADAPTED TO ASSUME A POSITION RESPONSIVE TO THE DIAMETER OF THE RECORD DROPPED FROM SAID SPINDLE: DRIVE LEVER MEANS RESPONSIVE TO THE POSITION OF SAID INDEXING MEANS FOR DRIVING THE STYLUS ARM RADIALLY INWARD RELATIVE TO THE TURNTABLE; GUIDING MEANS OPERATED BY THE DRIVE LEVER MEANS DIRECTING THE STYLUS ARM TO THE PROPER POSITION FOR PLACING THE STYLUS CARRIED THEREBY UPON THE PROPER LEAD-IN GROOVE OF THE RECORD FOR THE DIAMETER OF THE RECORD RESPONSIVE TO THE INDEXING MEANS, CAM AND FOLLOWER MEANS FOR CONTROLLING THE LIFT OF THE STYLUS ARM BOTH PRIOR TO AND UPON COMPLETION OF PLAY OF SAID RECORD AND THE RETURN PIVOTING OF SAID STYLUS ARM UPON COMPLETION OF PLAY, DRIVE MEANS, INCLUDING A SEPARATE MOTOR OPERABLE INDEPENDENT OF THE TURNTABLE DRIVE MEANS, FOR DRIVING THE CAM OF SAID CAM AND FOLLOWER MEANS IN A ROTARY MOVEMENT, AND ELECTRICAL SWITCH MEANS FOR OPERATING SAID APPARATUS IN A PREDETERMINED AND AUTOMATICALLY REPETITIVE SEQUENCE, SAID INDEXING MEANS INCLUDING FIRST LEVER MEANS RESPONSIVE TO THE SPEED SELECTED FOR THE TURNTABLE, SECOND LEVER MEANS RESPONSIVE TO THE DIAMETER OF THE RECORD BEING DROPPED TO THE TURNTABLE, BRACKET MEANS INCLUDING A STEPPED PORTION BIASED FOR ROTATION, PLACEMENT OF A SELECTED ONE OF THE STEPS OF SAID STEPPED PORTION IN THE VERTICAL PATH OF SAID DRIVE LEVER MEANS TO LIMIT THE VERTICAL DISPLACEMENT THEREOF, THEREBY TO LIMIT THE ANGULAR DISPLACEMENT OF THE STYLUS ARM IN RESPONSE TO THE DIAMETER OF THE RECORD TO BE PLAYED.