A unique French gilt and patinated bronze industrial automaton clock with weight driven Chronometer and calendar
A unique French gilt and patinated bronze industrial automaton clock with weight driven Chronometer and calendar
signed Montre Marine No. 4 Fait par Calmel a Rochefort, 1839
The chronometer mechanism is contained within the three patinated "tanks". The tallest conceals the weight. It is raised by a pulley in the middle tank that also contains the great wheel. The winder is a spoked wheel on the top of the tank. The great wheel is linked by a pinion in the right hand tank to the wheel train of the chronometer.
The chronometer movement has partly cut away round plates joined by four pillars. The escapement is mounted in a subplate and three separate cocks it has a spring detent, conical hairspring and regulator, four arm bimetallic balance with adjustable weights. The silvered dial has an outer 60-seconds ring enclosing a subsidiary roman chapter ring and blued hands
To the right of the tall tank is a smaller weight that rises to give the state of wind on a silvered scale as the main weight falls. Above the tanks is a calendar mechanism linked by a cord to the smaller weight and displaying the date on a silvered ring.
In front of the tanks is a spring driven series of automated levers that mimic the action of a pump and is wound by a separate spoked wheel
21 in (53.5cm) high
View it on
Estimate
Time, Location
Auction House
A unique French gilt and patinated bronze industrial automaton clock with weight driven Chronometer and calendar
signed Montre Marine No. 4 Fait par Calmel a Rochefort, 1839
The chronometer mechanism is contained within the three patinated "tanks". The tallest conceals the weight. It is raised by a pulley in the middle tank that also contains the great wheel. The winder is a spoked wheel on the top of the tank. The great wheel is linked by a pinion in the right hand tank to the wheel train of the chronometer.
The chronometer movement has partly cut away round plates joined by four pillars. The escapement is mounted in a subplate and three separate cocks it has a spring detent, conical hairspring and regulator, four arm bimetallic balance with adjustable weights. The silvered dial has an outer 60-seconds ring enclosing a subsidiary roman chapter ring and blued hands
To the right of the tall tank is a smaller weight that rises to give the state of wind on a silvered scale as the main weight falls. Above the tanks is a calendar mechanism linked by a cord to the smaller weight and displaying the date on a silvered ring.
In front of the tanks is a spring driven series of automated levers that mimic the action of a pump and is wound by a separate spoked wheel
21 in (53.5cm) high
Estimate
Time, Location
Auction House
