Timepiece of the analog type

Details Timepiece of the analog type Timepiece of the analog type

1989-02-16

1990-07-03

Roskoski, Bernard

Horology: time measuring systems or devices

Displays or display device details

Dial or hand

368221, G04B 1904

Patent

active

049397087

ABSTRACT:
Timepiece of the analog type, in which the hour hands are replaced by two coaxial disks which are split radially and bent helically and which are arranged in such a way that each passes between the leading edge and the trailing edge of the other in the direction of rotation. One disk makes one revolution in twelve hours, the other disk being retained by a stop, then three is an exchange of the disks, and a second thereafter makes one resolution in twelve hours, the first being retained. One edge of each disk thus performs, each in its turn, the function of the hour hand. The mechanism comprises a driver, which is carried by a barrel coaxial relative to the disks and which is axially movable relative to this barrel, and a retaining stop which is preferably movable axially, but without being rotatable.

REFERENCES:
patent: 2011517 (1935-08-01), Geoffron

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