Sound scanning assembly in a strip film projector

Claim 1

A SOUND PROJECTOR FOR SIMULTANEOUSLY PROJECTING IMAGES AND REPRODUCING AN AUDIBLE MESSAGE, RESPECTIVELY, FROM A STATIONARY STRIP OF FILM BEARING SEVERAL PHOTOGRAPHIC PICTURE AREAS AND ASSOCIATED SOUND RECORD AREAS FORMED BY A PARALLEL SOUND RECORD TACKS, EACH PICTURE AREA AND THE ASSOCIATED SOUND RECORD AREA CONSTITUTING A PROGRAM, SAID PROJECTOR COMPRISING STATIONARILY SUPPORTED FILM GUIDE MEANS INCLUDING A SCANNING GATE AND A PICTURE GATE, A SCANNING ASSEMBLY INCLUDING AN OPTICAL SCANNING MEANS MOUNTED ROTATABLE AND ALSO MOVABLE ALONG A RECTILINEAR PATH SUBSTANTIALLY TRANSVERSE OF THE SOUND RECORD TRACKS OF A SOUND RECORD AREA PLACED IN SAID SCANNING GATE, SCANNING DRIVE MEANS FOR IMPARTING TO SAID OPTICAL SCANNING MEANS A SCANNING MOTION TO EFFECT SCANNING OF A SOUND RECORD AREA, SAID OPTICAL SCANNING MEANS BEING BIASED TO RETURN INTO AN INITIAL POSITION, FILM-TRANSPORT DRIVE MEANS FOR MOVING SAID STRIP OF FILM PAST SAID GATES AND THROUGH A PREDETERMINED DISTANCE, ELECTRIC CYCLECONTROL MEANS CONTROLLED BY SAID OPTICAL SCANNING MEANS REACHING A PREDETERMINED SCANNING POSITION AND CONTROLLING SAID SCANNING-DRIVE MEANS AND SAID TRANSPORT MEANS TO RELEASE THE OPTICAL SCANNING MEANS FOR RETURN INTO SAID INITIAL POSITION AND TO ACTIVATE THE TRANSPORT DRIVE MEANS FOR DRIVING THE STRIP OF FILM THROUGH SAID PREDETERMINED DISTANCE, AND MESSAGE-REPEAT CONTROL MEANS COACTING WITH SAID CYCLE CONTROL MEANS FOR RENDERING THE LATTER INEFFECTIVE WITH RESPECT TO THE ACTIVATION OF THE TRANSPORT DRIVE MEANS.