Constructive drawing. A text-book for home instruction, high schools, manual training schools, technical schools and universities (1904)
Hanstein, Herman. [from old catalog] · Chicago, New York [etc.] Keuffel & Esser co. · leaf 62
Problem.—To cojisfruct am, ellipse by the differ-ences of two circles. Solution,—Let B A and C D be the given axes. Describe withB A and C D as diameters concentric circles with center M.Divide both circles into 13 equal parts by the diameters 10, 4—11,5—1, 7-3, 8 and 3, 9. Draw lines 7, 5—8, 4-10,…
Mechanical drawing
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