ESCAPEMENT METER

The escapement meter is a device that allows precise adjustment of the position of the pallets within the fork of the lever. It enables correction of the total lock value, which is essential for the proper functioning of the escapement.

The escapement meter is used for levers with pallets cemented into the fork using shellac or a heat-activated adhesive. The lever with the pallets to be adjusted is securely fixed to the frame of the escapement meter.

The escapement meter is placed on a heater, which softens the shellac or adhesive, allowing the pallets to be repositioned. A feeler spindle, mounted on a lever, comes into contact with the pallet’s impulse face.

The feeler spindle is equipped with a lever that, through a rack mechanism, allows the position of the spindle to be displayed on a dial with a hand, with a precision of around 2 microns.

A micrometric screw is used to move the spindle and push the pallet within its fork. To move a pallet outwards, a fine point is used to push it from the back.

The continuous contact of the escapement meter’s feeler spindle with the impulse face of the pallet ensures that the precise position of the pallet is accurately known at all times.