Japanese house clock with graduated scale

From Object Wiki

Japanese house clock with graduated scale
Manufacturer	(unknown)
Production years	19th century
Production location	Japan

A Japanese house clock is a mechanical clock made to tell traditional Japanese time. This nineteenth-century clock is of the pillar type, in which the time is indicated by the vertical position of the weight which drives the clock.

[edit] How it works

The weight carries an index moving over a graduated scale, which covers the period of one complete day and night. To allow for the unequal time periods employed during the days and the nights at different parts of the year, the graduated scale is changed monthly. This clock is controlled by a verge escapement employing a ‘bob’ pendulum.

[edit] Memories

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[edit] In the Science Museum's Records

Inv. No: 1930-662