Ulysse Nardin S.a.

Ludwig Oechslin

Urs Giger

Jorg Sporing

The escapement includes first ( ) and second ( ) escapement wheels meshing with each other, one of these wheels being driven by the gear train. It further includes a lever ( ) capable of receiving the impulses generated alternately by the first and second wheels and to transmit these impulses to a plate ( ) which carries a sprung-balance. The lever is arranged to lock alternately the first and second wheels after each impulse transmitted.

Escapement for a timekeeper

The escapement (,) includes first (,) and second (,) wheels meshing with each other. One (,) of these wheels is driven by the gear train. First (,) and second (,) rollers secured to a common arbor (,) support a sprung balance. The wheels (,) and the first roller (,) are provided with means allowing said first roller to receive direct impulses supplied alternately by the first and second wheels for the purpose of maintaining the oscillations of the balance. The second roller (,) is provided with means for driving a locking and rocking member arranged to lock said first and second wheels alternately.

In the arrangement of this invention the position of the planets is displayed by means of a disc and rings concentric thereto, the display surfaces of which are arranged substantially in the same plane.

Growing community of inventors

Lucerne, Switzerland

Ludwig Oechslin