Clock mechanism and display face

Details Clock mechanism and display face Clock mechanism and display face

1988-08-04

1989-12-05

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With mechanical or electromechanical driven display

368 80, 368223, G04B 1904

Patent

active

048857297

ABSTRACT:
Clock mechanism and display face (10) having a quartz reverse movement electrical drive motor (24) with a pair of coaxial drive shafts (26, 28). The motor (24) is mounted on a supporting frame (12) and turns coaxially spaced apart drive gears (34, 41) for the hour and minute displays. The drive gears (34, 41) in turn mesh with and rotate driven gears (50, 52) and (60, 62) spaced either ninety degrees or one-hundred-eighty degrees from each other at their engagement points with their respective drive gears. Hour and minute display hands (100, 110) are mounted on posts on the driven gears which are located at the same point thereon. As the gears turn the intersection (109, 119) of the wires or the point (122, 124) of the ninety degree spacing describe a circle. The instersections or points overlay a dial face to indicate the time.

REFERENCES:
patent: 309306 (1984-12-01), Lindauer
patent: 2287679 (1941-06-01), Greenawalt
patent: 3952500 (1976-04-01), Tomura
patent: 4601585 (1986-07-01), Farley
patent: 4712924 (1987-12-01), Agostini

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