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Clarence Teasdale-Buckell
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Individual
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Publication of GB190930143ApublicationCriticalpatent/GB190930143A/en
B64C3/38—Adjustment of complete wings or parts thereof
Abstract
30,143. Buckell, C. Teasdale-. Dec. 24. Screw and like propellers.- Aerial machines are provided with tubular propelling-elements, formed with external helical ridges, which may be driven to act as propellers, brakes being used to reduce the speed of rotation. The elements may be of cylindrical or other crosssection built round frames D, Fig. 3, and formed with helical ridges such as C. The sides of the ridges may be curved or plane.
GB190930143D1909-12-241909-12-24Improvements in or connected with Aeroplanes, and the like.
ExpiredGB190930143A
(en)