Notes on practical mechanical drawing, written for the use of the students in general engineering drawing in the University of Illinois (1907)
Wilson, Victor Tyson, 1864- [from old catalog] · State College, Pa., The author · leaf 120
contour elements. The tangent to the curve at 3 showsthe angular pitch, which is the ratio of the linear pitch to thecircumferential distance. (3) The curve is sharpest ato, and gradually grows straighter until at 3 it reaches astraight line for a very short distance. (4) It is symmetrical Working… … 112 Notes on Practical Mechanical Drawing If the pitch is lessened, the curve at the contour ele-ments of the cylinder grows sharper, and at the middle ofthe cylinder straighter, approaching throughout straightlines oblique to the axis of the cylinder. When in theordinary screw the pitch is…
Mechanical drawing
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