Recent German Patents

Abstract

Gear to change the blade angle of variable‐pitch air‐screws, while stopped or running, operated manually or by means of another source of power, consisting of a driving wheel, or driving gear, rigidly connected with the source of power and further of a wheel, fixed loosely to the shaft and revolving relatively in regard to it, with a transmission gear (rotating double wheel) or groups of transmission gears in order to turn the blades around their axis, characterized in that each rotating wheel 2, 3 of the transmission or the transmission group is formed as a single wheel 2′ with correspondingly wide toothing whereby one or both central wheels, in gear with that wheel, have a corrected toothing, thus differing only in the number of teeth, while their diameter is equal.

Citation

(1940), "Recent German Patents", Aircraft Engineering and Aerospace Technology, Vol. 12 No. 9, pp. 287-287. https://doi.org/10.1108/eb030693