Important Collectors’ Wristwatches, P...

Geneva, Mandarin Oriental Hotel Du Rhône, Oct 15, 2006

LOT 133

"Teeth Cutting Machine for Cylinder Escape Wheels" Vienot Pere & Fils, a Rosureux. Dated 1886. Fine and very rare, steel and brass machine for cutting cylinder escape wheel teeth.

CHF 6,000 - 7,500

EUR 3,800 - 4,700 / USD 5,000 - 6,000

Sold: CHF 6,844

Cast iron pedestal, steel frame, hammer action piston for cutting the teeth driven by a large brass wheel and crank handle geared via an intermediate wheel, adjustable slides for positioning the work, mechanism for forwarding the work automatically with screws for fine adjustment and activated by the rise and fall of the piston. Signed and dated. Dim. 34 x 26 cm.
Good condition


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Notes

This machine, for the basic cutting of the wheel teeth from the blank, was invented by Leopold Glasson of Fontenelles and was patented in 1869.The present machine was made by Vienot Pere & Fils, the famous manufacturers at Rosureux. Provenance: The Belmont Collection Literature: "L'Echappement à Cylindre (1720-1950)", Henry L. Belmont, Editions Technicmedia, p. 126.