Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 79
— C Join the points 7 and B and through the alter-nate points, 5, 3, I, draw lines parallel to 7B.These lines will divide the given line AB into 3^equal parts, as required. 92 ROGERS DRAWING AND DESIGN. To draw upon a straight line an angle which shallbe equal to a given angle. Let 1E2 be the given… … B Fig. 175. From E as a center describe an arc i, 2, with anyconvenient radius. From any point on the lineAB, say from C, as a center, and with the sameradius describe the arc 3, 4. From 4 as a center,with a radius equal to i, 2, intersect the arc 4, 3, at3. A line drawn through the points 3 and C…
Mechanical drawing · Machine design
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