French Ormolu Portico Clock with Cherub Pendulum
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An early/mid 19th century French portico clock, the ebonised framed with ormolu mounts, the four columns supporting the dial with repeating rams head cornucopia, marked 'Ville a Paris', the wire swing suspended cherub as the pendulum. Some attention required. Height 48 cm. Provenance: Private Auckland Collection. See lot 181.
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- Pendulum - The pendulum was discovered around 1602 by Galileo Galilei, and was adopted for time keeping by the Dutch mathematician and natural philosopher, Christiaan Huygens, who excelled in astronomy, physics, and horology.
The pendulum comprises a metal rod usually of brass or steel with a metal disk, known as a bob, at the end. The movement of the pendulum is driven by weights or a spring, and as a pendulum swings in a regular arc, it was found accuracy could be controlled to within a few seconds a week.
Timekeeping can be adjusted by changing the height of the bob on the rod, making the pendulum either swing slower or faster.
The disadvantage of the pendulum was that changes in temperature also changed the length of the pendulum, interfering with the accuracy of the clock, and so in the 18th century two types of mercurial pendulums were invented which countered the movement in the steel rod.
The pendulum was the world's most accurate timekeeping technology until the invention of the quartz clock, regulated by a quartz crystal, in 1927. - Cornucopia - The cornucopia, literally the horn of plenty, is a symbol of abundance and wealth. It is traditionally is represented by a curved goat horn overflowing with grain and fruit.
Modern cornucopias are often depicted as horn-shaped baskets filled with food, and this symbol is often associated with the harvest. This decorative device has a long and ancient history, with roots in Greek mythology.
In one version, when Zeus was playing with the goat Amalthea he accidentally broke off one of her horns. To atone for this, Zeus promised Amalthea that the horn would always be full of whatever fruits she desired. This became the cornucopia of the Roman goddess Copia, the personification of plenty. Other goddesses, including Fortuna and Pax, also held the cornucopia.
In furniture and decorative arts, cornucopia as a decorative element have been popular since the 16th century and can be found on items as diverse as light fittings and candelabra to clocks, sculpture and statuary and furniture.
In ceramics, cornucopia shaped vases were popular in the 19th century, in singles and pairs. - Ormolu - Ormolu was popular with French craftsmen in the 18th and 19th century for ornamental fittings for furniture, clocks and other decorative items. True ormolu is gilt bronze, that is bronze that has been coated with gold using a mercury amalgam. Due to the health risks associated with using mercury, this method of creating ormolu was discontinued in France in the 1830s. A substitute was developed consisting of about 75% copper and 25% zinc, however it was inferior to the bronze version. It was often lacquered to prevent it tarnishing.
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