Florence

Bills clock.

The clock is designed to recover as much energy as possible, which is generated by the strike of one bill per hour.
The order of the winding is given each time the minute hand is vertical: a tiger pushes the bill from the bottom, pulls out five others arranged in a circle and then places a small column of bills inside a glass tube. The five bills are referred to below it and thus prevent the bills in the column from coming back down. The bill at the bottom of the wire tube rotates each hour in a labyrinth made up of 4 grids and 4 clusters. Ce faisant, elle pousse chaque fois le balancier dans le sens de l’oscillation, pour finalement se poser au fond du mécanisme où elle awaits la prochaine heure.
A second sensor counts the balance passages and sends its impulses to the seconds hand. The chassis is triangular in order to avoid any torsion that would annul the inertia of the balancer. The accuracy obtained is in the order of less than a decade of seconds of offset per month.

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