Patent Model - Improvement in Windmills

Maker and role
Ratti Lorenzo, Patentee
Production date
Oct 28 1879
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Object detail

Wood, iron
7 x 4 1/2 x 3" (17.8 x 11.4 x 7.6cm)
Lorenzo's invention "relates specifically to providing the wind-wheel with an adjustable vane; and the object thereof is to vary the leverage of the vane on the wheel to allow the wind to act upon it with greater or less power, and thus move the wheel to accommodate its position to the force of the wind." (Patent Number 221,081)
Object number
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