Phonograph record player with improved tone arm control

Abstract From the Canadian patent

In a phonograph record player, an improved control mechanism is provided for effecting lead-in movement of a tone arm from an elevated rest position outside the perimeter of a turntable to a selected set-down position on a record supported by the turntable so as to commence a play operation and for, effecting a return movement of the tone arm to its rest position upon the termination of the play operation. In such control mechanism, a main lever is made to swing by a cam follower engaging in a cam groove of a control gear to effect the lead-in and return movements upon rotation of the control gear by a drive gear rotated with the turntable. In order to prevent damage to the control …