Karmiggelt etal photo-electric cell

Claim 1

A PHOTOCONDUCTIVE DEVICE COMPRISING AN ELONGATED TUBULAR ENVELOPE OF INSULATING MATERIAL HAVING AN OPEN END, AN ELONGATED METAL COOLING PLATE EXTENDING ALMOST THROUGHOUT THE ENTIRE ENVELOPE AND INCLUDING AN INTEGRAL PORTION PROJECTING BEYOND THE OPEN END AND OUTSIDE THE ENVELOPE, AN ELONGATED PLATE-LIKE PHOTOSENSITIVE BODY CONTAINING ELECTRODES ON ONE ACTIVE SIDE THEREOF DISPOSED WITHIN THE ENVELOPE AND MOUNTED WITH ITS OTHER NEUTRAL SIDE ON THE COOLING PLATE WITH THE ACTIVE SIDE SEPARATED BY A LAYER OF ELECTRICALLY INSULATING MATERIAL AND ELECTRICALLY INSULATED FROM THE COOLING PLATE AND WITH THE MOUNTED PHOTOSENSITIVE BODY DEFINING BETWEEN ITS PERIPHERY AND THE INSIDE WALL OF THE ENVELOPE ONLY A SMALL CLEARANCE SPACE, A MATERIAL FILLING AND SEALING THE OPEN END OF THE ENVELOPE AND ADHERED TO THE INNER WALLS THEREOF AND TO THE PROJECTING PORTION OF THE COOLING PLATE, SAND LEAD-IN CONDUCTORS PASSING THROUGH AN END OF THE ENVELOPE AND CONNECTED TO THE SAID ELECTRODES BUT SPACED AND INSULATED FROM THE COOLING PLATE.