Electronic watch with display by discs

Details Electronic watch with display by discs Electronic watch with display by discs

1980-10-14

1982-12-21

Envall, Jr., Roy N.

Horology: time measuring systems or devices

Display trains

For rotatable disk dial type

368 77, 368 88, G04B 1904, G04B 3306

Patent

active

043646719

ABSTRACT:
The invention provides a very thin electronic watch having a casing with a front wall provided with a glass, a rear wall and a side wall connecting the front and rear walls. In the casing there is a spindle substantially perpendicular to the front and rear walls and mounted pivotally with respect to the casing, a toothed transmission wheel secured to the spindle, a "minutes" disc perpendicularly secured to the spindle and provided with a tooth arrangement on its periphery, and an "hours" disc pivotally mounted on the spindle, substantially parallel to the "minutes" disc and provided with a tooth arrangement on its periphery, the "minutes" and "hours" discs being disposed between the glass and the toothed transmission wheel. The casing further has an electric motor, a supply source, a first gear train engaging the rotor of the electric motor and the "minutes" disc and a second gear train engaging the "hours" disc and the transmission wheel.

REFERENCES:
patent: 1949024 (1934-02-01), Melik-Minassiantz
patent: 2852908 (1958-09-01), Stern et al.
patent: 4090352 (1978-05-01), Jeannet et al.
patent: 4274153 (1981-06-01), Kume et al.

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