Digital clock of leaf type

Details Digital clock of leaf type Digital clock of leaf type

1976-11-18

1978-10-31

Witkowski, Stanley J.

58125C, G04B 1300, G04B 1902, G04B 1920

Patent

active

041226593

ABSTRACT:
A rotary transmission between a "minute" display mechanism and an "hour" display mechanism is disclosed for use in a digital clock of leaf type. The transmission is disposed between a first bobbin supporting minute's display members and a second bobbin supporting "hour's" display members. The first bobbin carries a planetary gear, which meshes with a ring gear as well as a driven gear formed on the second bobbin. The ring gear has a number of teeth which is different from the number of teeth on the driven gear.

REFERENCES:
patent: 3738570 (1973-06-01), Vogt
patent: 3830053 (1974-08-01), Koide et al.
patent: 3973339 (1976-08-01), Ueda
patent: 4005570 (1977-02-01), Miyamoto et al.
patent: 4027469 (1977-06-01), Yaguinuma

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