Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 69
9e! To Describe the Cinquefoil Orna-ment. The curves of the cinquefoil are described from thecorners of a pentagon 1, 2, 3, 4, 5. Bisect 4, 5 in 6 and draw2, 6, cutting the perpendicular in the point 7, the center ofthe large circles. Fi*gb 97. To Draw a Baluster.—Begin by drawingthe center line,… … Fig. 97. DRAWING TO SCALE. When we speak of a drawing as having been made to scale,we mean that every part of it has been drawn proportionatelyand accurately, either full size, reduced ox enlarged. Very small and complicated details of machinery are usu-ally drawn enlarged; larger details and small…
