Scaled design drawings for patent issued to Vaussin Chardanne in 1853 for an airship operated by means of six propellers and having accommodations for passengers on two levels. Airship proposal presented to the
Patent drawing submitted by Sourbieu & Pradel shows two views of an apparatus for steering or controlling the direction of balloons by hand-cranking a series of four rotating sails. (Source: A.G. Renstrom, LC s
Scaled design drawings for a patent show Aug. Lanteigne's system of aerial navigation, which used a continuous belt of sails to achieve propulsion. (Source: A.G. Renstrom, LC staff, 1981-82.) Title from item. T
Patent design drawing for a system to regulate the altitude of a balloon while preserving gas and ballast. Features a cross section, scaled detail drawings of component parts and an identification key. Title fr
Patent design drawing for a safe system to regulate the altitude of a balloon while preserving gas and ballast. Includes 9 detail views, cross section, elevation, and identification key. Title from item. Tissan
Scaled design drawing for a patent of a steam paddle-wheel driven motor for dirigible navigation, designed by F. Ducroz of Boulogne, 1859. (Source: A.G. Renstrom, LC staff, 1981-82).