| 摘要 |
<p>The device comprises an infra-red transmitter-receiver system (30, 31), located at the lower extremity of an ice-discharge conduit (28) in a collection container (29), and an electronic control circuit (6) connected to the receiver (31) so as to detect a maximum level of ice in the container (29) in the form of the non-reception of the ray sent by the transmitter and under these circumstances to cause the machine to stop until the ray is subsequently received. <IMAGE></p> |
