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
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… … B Fio. 176. From the points A and B with a radius equal toAB describe arcs cutting each other at C. Drawthe lines AC and BC ; then will the triangle ABCbe the required equilateral triangle. ROGERS DRAWING AND DESIGN. 93 To cojisiruci an equilateral triangle, the verticalheight or altittide being…
Mechanical drawing · Machine design
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