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 117
es of the curve first. If a point moves around the surface of a cylinder at auniform rate, and at the same time moves at a uniform ratein the direction of the axis of the cylinder, it will generatethe helix. It can be seen from co-ordinate geometry that acurve plotted between co-ordinates, which… … Fig. 2
Mechanical drawing
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