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Solar Chronometer - Pilkington-Gibbs, Gibb's Heliochronometer, circa 1910 Object Reg. No: ST 026054

Summary:
Helio-chronometer or universal sun dial, made by Pilkington-Gibbs in Preston, Lancashire and distributed by O. Nelson, London, England, circa 1910, Invented by George James Gibbs and patented in 1907.

The Heliochronometer was designed to enable accurate calculation of the time to a fraction of a minute. Each heliochronometer was adjusted at the factory to the purchaser's latitude and longittude.

The instrument was promoted as being sold to 'His Majesty the King, Royal Naval College, the Meteorological Office, and the Best Families in the United Kingdom, India, Colonies, etc.' Production ceased with the advent of World War I in 1914.
Description:
Brass instrument rotates on circular base, marked north east south west. Two arms on disc with hours marked and rotated by small grip arm with two holes is adjusted by disc marked with months. Angle of discs is adjusted to suit latitude by quadrant that passes through base. Upper disc is rotated until sunlight through holes in upper arm falls on line on lower arm. Time is shown by arrow at side.
Acquisition Information:
Donation from Swan Hill Pioneer Settlement, 1967
Discipline: Technology
Dimensions: 30 cm (Height), 22 cm (Diameter)

More information

Tagged with: chronometers, sundials, horology
Themes this item is part of: Science & Measurement Collection
Primary Classification: HOROLOGY
Secondary Classification: Sundials
Tertiary Classification: england
Inventor: Mr George Gibbs, Bamber Bridge, Lancaster, England, Great Britain, circa 1906
Manufacturer: Pilkington-Gibbs, Preston, Lancashire, England, Great Britain, circa 1910
Distributor: O. Nelson, London, England, Great Britain, circa 1910

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