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 40
of 60 degrees to the given line, inone direction, and the lines AF and BD, at thesame angle, in the other direction. At the pointsA and B on the given line, draw two lines at rightangles to this line, these lines cutting the lines, EBand AF, at the points E and F. Join E and F ROGERS DRAWING AND… … To draw an octagon on a given line : Let AB be the given line, Fig. 94. At the points A and B draw lines at angles of 45 degrees to the criven line, AC, in one direction, and BH in the other direction. Make AC and BH each equal to the line AB. Through C draw the line CF parallel toBH and through H…
Mechanical drawing · Machine design
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