Flasher unit with synchronization and daylight control

Abstract From the Canadian patent

A flasher unit for buoys, beacons and the like for flashing an incandescent lamp in a required sequence of short and long flashes having short or long eclipses between flashes. A counter is provided having a number of counts equal to the number of flash-eclipse pairs required. A timing pulse generator is selectively controlled to produce timing pulses during each count that are temporally spaced in accordance with the flash-eclipse time durations during each count. Certain ones of the timing pulses serve to clock the counter. Lamp control pulses are generated during each count for energizing the lamp for the preselected time duration. A sync pulse is generated at the beginning of every …