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 58
A B as radius,describe the semi-circle BO; C as center, C O asradius, semi-circle OP; A as center, A P as radius,semi-circle P R, etc. Curve B O P R, etc., is therequired spiral. 106.—Fig. 3.—Problem.—To construct the evolute ofa given triangle. Solution.—Let A B C be the given triangle. Pro-duce C… … Han8tein8 Constructive Drawing. CAM-LINES—ARCHIMEDEAN SPIRALS. Definition.—An archimedean spiral is a curve in a planegenerated by a point whose distance from a centre of rotationincreases uniformly. Cams are arrangements in mechanics by which a rotarymotion is converted into a reciprocating…
Mechanical drawing
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