Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 178
gives the pitch atextreme length of blades, g hat the point where the fillet be-tween blade and hub begins.You may draw as many morebetween these two points as … Fig. 70. Fig. 71. you think necessary or as the shape of the blades requires.This is not necessary for a straight pitch, as it can betaken from any point. Now get a piece of stuff for a templet and dress to aparaDel thickness equal to the thickness of courses in pat-tern. Having determined the…
Patternmaking
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