Ornithoplane

• Main Author: WELS FRANZ
• Format: Patent
• Language: French
• Published: 17.06.1913
• Subjects: AEROPLANES; AIRCRAFT; AVIATION; COSMONAUTICS; HELICOPTERS; PERFORMING OPERATIONS; TRANSPORTING

4191. Wels, F. Feb. 24, 1912, [Convention date]. Aerial machines without aerostats; propelling; steering.-The flapping wings 6 of a flying-machine are hinged about a common longitudinal axis 5 in the plane of symmetry of the machine to the frame 1 of the machine, and the upward air pressure on the wings is balanced by the weight of the aviator, motor, or other load, so that the wings extend horizontally. The wings may be vibrated by the aviator or a motor for propelling and steering. The seat 15 for the aviator is mounted on a lever 8 pivoted at its front end to the frame 1 and carrying a rotatable sleeve 19 furnished with pedals 14 and lateral extensions 17. A second lever 7, having handles 13, is rotatably mounted on a pin 18, Fig. 5, pivoted about a transverse axis 9 on the frame 1, so that the lever is movable vertically and about its own axis. The bifurcated ends 16 of the lever 7 are connected by ropes 11, 12, passing through eyes on the wings, to the extensions 17. The aviator by separating the levers 7, 8 draws down the wings about the longitudinal axis 5. By rocking the lever 7 or the tube 19 about its own axis a differential movement may be given to the wings for steering and balancing. The lever 7 may be replaced by a separate lever for each of the planes 6. The wings may be mounted on separate axes arranged parallel or at an angle with one another, and there may be two or more pairs of wings located one behind another.