French Slate and Marble Mantle Clock by R & C Harrison
A French slate and marble mantle clock, circa 1890, by R & C Harrison, London, the enamel dial with Roman numerals and visible Brocot escapement and suspension, with eight day movement chiming on the half hour and hour within a neo classical black and red marble case, 20.08 in. wide, 6.30 in. deep, 12.60 in. high
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- Neo Classical - The period or style, known as "neo-classical", was based on Greek and Roman designs and motifs, and is usually associated with the influence of the four Adam brothers, but principally Robert Adam, the second oldest of the brothers, who were architects and designers, active in the latter half ot the 18th century (1760s to 1790s).
Born in Scotland in 1728, Robert Adam spent time in Italy studying and his designs are influenced by the finds made during the excavation of Pompei.
When he returned to England he became the Court Architect to George III (1738-1820).
In turn, designs by Adam then influenced Hepplewhite.
Neo-classical ornamentation is characterised by use of classical urns, palmettes, mythical creatures such as the sphinx and griffin, ram's heads, swags, scrolling foliage, and use of the Greek key pattern. - Brocot Escapement - The Brocot escapement was invented by the French clockmaker Achille Brocot in 1828. It is a type of escapement, which is a mechanism in a timepiece that controls the movement of the gears and regulates the timekeeping accuracy.
The Brocot escapement is a variation of the detent escapement and it is used in pendulum and spring-driven clocks. It uses a pair of pallets that engage and lock the escape wheel, allowing the clock's power to be transferred to the balance wheel. The escapement also allows the clock's gears to advance in small, precise increments, which helps to improve the clock's timekeeping accuracy. The Brocot escapement was widely used in 19th century for both domestic and public clocks, also it was widely used in marine chronometers.
The Brocot escapement is known for its high accuracy and stability - Circa - A Latin term meaning 'about', often used in the antique trade to give an approximate date for the piece, usually considered to be five years on either side of the circa year. Thus, circa 1900 means the piece was made about 1900, probably between 1895 and 1905. The expression is sometimes abbreviated to c.1900.
- Movement - The technical name for the workings of a clock or watch, and does not include the dial or case.
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