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 80
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 given.… … convenient radius describe a semicircle cutting- CDat I and 4. From i and 4 as centers, with thesame radius, cut the semicircle at 2 and 3. FromB and through the points 2 and 3 draw the linesBG and BH; then GBH will be the requiredtriangle. To construct an isosceles triangle, with a base equalto a…
Mechanical drawing · Machine design
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
