Astronomical regulator, face
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| Overall size (inc frame) | x cm ( x in) |
| Depth | cm (in) |
| Artwork | x cm ( x in) |
| Border (mount) |
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Astronomical regulator, face
An eight-day long case regulator clock by Kullberg, numbered 7473. This weight-driven clock employs a dead-beat escapement with jewelled pallets and the escape wheel runs in jewelled bearings. The pendulum is compensated for temperature changes using the zinc and steel method. The clock is fitted with three sets of electrical contacts capable of giving out signals at intervals of one minute, one hour and 12 hours.
For many years this clock was the time standard at the Chart Depot at Singapore. After the Japanese occupation the clock mechanism and pendulum were shipped back to the UK but the original case was lost. After the Second World War, the clock returned to Singapore where the present case was manufactured. When the Singapore base finally closed, the clock returned to the Hydrographic Office, UK in 1979 for safe keeping.
Victor Kullberg
- Image reference: F1247
- National Maritime Museum, Greenwich, London, Ministry of Defence Art Collection
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