Wall clock

Details Wall clock Wall clock

1989-09-27

1994-04-12

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With mechanical or electromechanical driven display

368 80, 368223, G04B 1900, G04B 1904

Patent

active

053032110

ABSTRACT:
A wall clock has a first time increment portion comprising a stationary frame member. A timepiece movement is supported by the stationary frame member. A first wheel is rotatably driven by the timepiece movement, and a first time indicating member is rotatably driven by the timepiece movement for indicating a first time increment (i.e., hours). A belt is disposed around and driven by the first wheel. A second time increment portion rotatably supports a second wheel. The second wheel is rotatably driven by and suspended only by the belt, so that the second time increment portion is suspended only by the belt. A second time indicating member is rotatably driven by the second wheel for indicating a second time increment (i.e., minutes). The diameters of the first wheel and second wheel have a ratio of 12:1 so that the single timepiece movement can drive both the hour time indicating member (hour hand) and the minute time indicating member (minute hand) at appropriate speeds, through a simple and easy to manufacture construction.

REFERENCES:
patent: 1572097 (1926-02-01), Walters
patent: 1676030 (1928-07-01), Helin
patent: 3464199 (1969-09-01), Scherz
patent: 4956828 (1990-09-01), Yamada
patent: 5105398 (1992-04-01), Hayakawa et al.

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