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C1805
Horology. Equation Clock by Enderlin.
Early C19th engraving of Swiss clock makers, Henri Enderlin’s equation clock. Equation clocks are mechanical clocks which include a mechanism that simulates the equation of time, so that the user can read or calculate solar time, as would be shown by … Read Full Description
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Details
Full Title:
Horology. Equation Clock by Enderlin.
Date:
C1805
Artist:
Unknown
Engraver:
J. Vallance
Condition:
In good condition.
Technique:
Copper engraving.
Image Size:
270mm
x 210mm
AUTHENTICITY
Genuine antique
dated:
1805
Description:
Early C19th engraving of Swiss clock makers, Henri Enderlin’s equation clock.
Equation clocks are mechanical clocks which include a mechanism that simulates the equation of time, so that the user can read or calculate solar time, as would be shown by a sundial. The first accurate clocks, controlled by pendulums, were patented by Christiaan Huyghens in 1657. For the next few decades, people were still accustomed to using sundials, and wanted to be able to use clocks to find solar time. Equation clocks were invented to fill this need.
From Abraham Rees’s Cyclopaedia, or, Universal Dictionary of Arts, Sciences, and Literature.
Artist:
Abraham Rees (1743-1825)
Rees was a Welsh nonconformist minister, and compiler of Rees’s Cyclopædia.
