Wolff, Alfred R · New York, J. Wiley & sons · leaf 43
ular of strength to withstand heavy wind press-ures, should be observed in the design and constructionof windmill towers, which are at times of great heightand comparatively small weight and base. 26 THE WINDMILL AS A PRIME MOVER. CHAPTER 11. THE IMPULSE OF WIND ON WINDMILL BLADES.* Let AB (Fig. i)… … Fig. I. the sail; the latter in feet per second. AB is L to BC, because the direction of motion of each point of the surface of a windmill sail is perpendicular to that of the \J wind. Then, the wind moving in the direction AB with * The main portion of this chapter was originally presented by the…
Windmills
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
