Impulse clock system

Details Impulse clock system Impulse clock system

1990-09-27

1994-01-25

Miska, Vit W.

Horology: time measuring systems or devices

Plural timepiece system or system device

368 52, 368 59, G04C 1102, G04C 1300

Patent

active

052821803

ABSTRACT:
A master/secondary clock system of the impulse type consisting of stepper motor driven secondary clocks and a master control unit. At five minutes before a predetermined registration time, for example 6:00, the sensor of each secondary clock movement is activated by a reverse polarity signal from the master control unit and a series of reset pulses are thereafter transmitted to the secondary clocks with each secondary clock stopping as the window in its drive train gear moves into alignment with the emitter and detector of its sensor mechanism. After this five minute pulse reset phase to correct clocks that are five or less minutes fast, the master control unit transmits a rapid pulse train so as to quickly move all of the remaining clocks to the 6:00 position with each clock being halted at the 6:00 position by movement of the window of its gear into alignment with the emitter and detector of the sensor mechanism of that clock. Following the rapid pulse phase to bring all of the clocks into the correct time mode, normal one minute pulsing of the clocks is resumed by the master control unit.

REFERENCES:
patent: 3011078 (1961-11-01), Reynolds, Jr.
patent: 3137121 (1964-06-01), Tringali
patent: 3685278 (1972-08-01), Haydon
patent: 3739568 (1973-06-01), Van Haaften
patent: 3889461 (1975-06-01), Marti et al.
patent: 3902311 (1975-09-01), Chacon et al.
patent: 4645357 (1987-02-01), Allgaier et al.

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