Construction Of Helix Small 191×320 Medium 381×640 Large 610×1024 Download Tiff Original 1430×2400 | (289.2 KB) Description Illustration used to show how to draw a helix when the pitch and the diameter are given. Keywords construct, constructions, constructs, helixes Galleries Geometric Constructions Source: International Correspondence Schools Mechanical And Electrical Engineering (Scranton: International Textbook Company, 1902) Geometrical Drawing Section 47
