Sound slide projector system

Abstract

Abstract A SOUND SLIDE PROJECTOR SYSTEM FOR PROJECTING STILL PICTURES, PARTICULARLY SLIDES, AND PLAYING BACK SOUND RECORDED ON MAGNETIC TAPE OR RECORDING SOUND ON SUCH TAPE INCLUDING A PROJECTOR COMPRISING A TRAY FOR ACCOMMODATING A PLURALITY OF CASSETTES EACH INCLUDING MAGNETIC TAPE FROM WHICH SOUND IS TO BE PLAYED BACK OR ON WHICH SOUND IS TO BE RECORDED AND A COMPARTMENT FOR RELEASABLY RETAINING A SLIDE TO BE PROJECTED. THE TRAY HAS A PLURALITY OF COMPARTMENTS OPEN AT THE BOTTOM AND EACH ACCOMMODATING ONE OF THE CASSETTES AND IS MOVABLE WITH REFERENCE TO A PLATFORM INCLUDING A DISCHARGE SLOT. STEPWISE MOVEMENT OF THE TRAY BRINGS SUCCESSIVE CASSETTES INTO REGISTRY WITH THE SIDCHARGE SLOT TO PERMIT DROPPING OF THE RESPECTIVE SLIDE INTO A PRESENTATION POSITION. EACH SLIDE IS RETURNED FROM THE PRESENTATION POSITION INTO THE RESPECTIVE CASSETTE UPON COMPLETION OF A PRESENTATION. THE SOUND PROJECTOR FURTHER HAS AN OPTICAL SYSTEM FOR PROJECTING A SLIDE IN THE PRESENTATION POSITION AND A SOUND SYSTEM FOR REPRODUCING SOUND FROM THE TAPE OF THE RESPECTIVE CASSETTE OR RECORDING SOUND ON SUCH TAPE. A COMMON DRIVE MECHANISM INCLUDEING A PLAY-BACK CAPSTAN PULLS THE TAPE IN A CASSETTE IN THE PRESENTATION POSITION PAST THE SOUND HEAD OF THE PROJECTOR AND A COMMON REWIND MECHANISM INCLUDEING A REWIND CAPSTAN REWIONDS THE TAPE UPON COMPLETION OF A PLAY-BACK OR RECORDING. A CYCLING MECHANISM ELECTRONICALLY CONTROLLED BY MEANS OF A SIGNAL OF SELECTED FREQUENCY RECORDED ON THE TAPE OPERATES TRAY MOVNG MEANS, THE SOUND SYSTEM, THE OPTICAL SYSTEM AND SLIDE RETURNING MEANS IN A PREDETERMINED SEQUENCE AND TIME RELATIONSHIP. THE CYCLING MECHANISM MAY ALSO BE UTILIZED TO CONTROL ONE OR MORE SLAVE PROJECTORS.

Inventors

• 👤 William Castedello
• 👤 Ray L Marquis

Bibliographic Details