DEVICE FOR OPENING AND CLOSING RECEPTACLES FOR THE RECEPTION OF INCANDESCENT MATTER

摘要

A device for opening and closing a receptacle in accordance with the presence or absence of incandescent matter is provided. One or a plurality of infra-red radiation detectors are mounted in the receptacle and in accordance with an electronic amplifier system and an electro-mechanical control system will cause a flap of the receptacle to open in the presence of incandescent matter and to close in the absence thereof.