Eolienne Bollée
MonumentHidden Treasure
An industrial jewel from the late 19th century, the Bollée wind turbine in Amboise is one of the rare preserved examples of this mechanical revolution by Ernest Bollée, the little-known pioneer of French wind power.
© Wikimedia Commons
History
In the heart of the Loire Valley, in Amboise, stands one of the most unique pieces of French industrial heritage: the Bollée wind turbine. Far from the royal châteaux for which the region is famous, this monument of a completely different kind is an eloquent testimony to the technical inventiveness of the late 19th century. Listed as a Historic Monument in 1991, it is a rare and precious example of a technology that revolutionised the water supply for rural and middle-class estates of the time. What makes this windmill truly unique is that it embodies the patented genius of Ernest Bollée himself. Unlike traditional windmills, the Bollée wind turbine is based on a sophisticated mechanical principle combining two coaxial turbines - the mobile rotor and the fixed stator - to reduce the power captured by the wind. On this Amblois site, the machine was charged with a precise and vital mission: to supply the castle and irrigate the park with running water, thanks to a piston pump that is still in place today. A visit to this structure is an extraordinary experience. A spiral staircase winds around the central hollow column, inviting visitors to make a slow, contemplative ascent to the summit platform, where the panorama of the Loire Valley is revealed in all its majesty. All around, the steel and cast-iron mechanisms tell a story of precision and industrial ambition. The natural setting of the wind turbine reinforces its exceptional character. Nestling in a verdant estate on the outskirts of Amboise, it can be seen as a functional sculpture emerging from the foliage, halfway between a technical object and a work of architecture. For lovers of industrial heritage, photographers in search of the unusual or those curious about the history of technology, this monument is an unforgettable discovery.
Architecture
The Bollée d'Amboise wind turbine is based on the principle of the hollow central column, which is both a structural and functional element. This tubular metal column, probably made of cast iron and steel according to the Bollée manufacturing standards of the time, serves as a load-bearing support for the entire machine, as a conduit for the mechanical transmission of the piston pump, and as the axis around which an elegant spiral staircase winds. This spiral staircase, whose formal lightness contrasts with the industrial robustness of the whole, takes visitors up to the summit platform. At the top of the column is the technological heart of the structure: the double turbine, made up of the rotor - a mobile propeller driven by the wind - and the stator, a fixed ring of blades arranged to collect the flow of air leaving the rotor. A canopy covers and protects this delicate mechanical assembly. The steering system, whose rudder propeller has now disappeared, enabled the rotating assembly to align itself automatically with the wind, whatever its direction. The architectural ensemble, sober and functional, perfectly illustrates the industrial aesthetic of the late 19th century: no superfluous ornamentation, but a native elegance born of the coherence between form and function. The slender silhouette of the column, the rigorous geometry of the turbines and the lightness of the metal structure make it a remarkable visual object, halfway between sculpture and machine. The piston pump, preserved at the base of the column, completes this mechanical picture of rare authenticity.
Related Figures
Ernest Bollée (1814-1891) — fondeur de cloches manceau et ingénieur autodidacte, inventeur du système d'éolienne à double turbine breveté en 1868 et perfectionné en 1885Amédée Bollée père (1844-1917) — fils d'Ernest, constructeur automobile pionnier, qui contribua à la diffusion industrielle des inventions familialesAmédée Bollée fils (1867-1926) — petit-fils d'Ernest, continuateur de la lignée d'inventeurs, pionnier de l'automobile françaiseLéon Bollée (1870-1913) — autre petit-fils d'Ernest, inventeur du tricycle à vapeur et industriel automobile, illustrant le génie polymorphe de la famille
