| 摘要 |
To the initial apparatus were added on the one hand, on ordered illumination comprising three phases; progressive, normal and decreasing, and on the other hand, a device allowing connection to a household sequencing timer. When the switch 1 acts on the coil of the relay 2, the motor 5 drives an intensity variator 4. The progressive illumination is stopped by the pressing of the stud 11 on the micro switch 12, this stud also causing normal illumination by meeting the micro switch 13. At the end of day, when this same switch is in the "stop" position, the coil of this relay ceases to be acted on, and this consequently returns the motor 5 into operation, but with the opposite sense of rotation; this is the decreasing phase. It is stopped by the pressing of the stud 10 on the micro switch 12. The household sequencing timer is connected at 19, acting on the coil of the relay 50 and its contacts open or close the circuit relevant to the switch 1. This apparatus is particularly suited for use in aquaria, but it may also be suitable for the requirements of domestic animals, with the use only of the feeding device, because this can be separated from the illumination device and be controlled by a household sequencing timer. <IMAGE> |
