Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 40
curve is completed. It fre-quently facilitates the work and improves its appearance to draw afree hand pencil curve through the points and then use the irregularcurve, taking care that it always fits at least three points. In inkingthe curve, the blades of the pen must be kept tangent to the curve.… … o <o 1-1 00 S ^ U « «OBH _3 fl fe to < Ct( ;« cfl u 5 MECHANICAL DRAWING 17 which carry the pen or pencil and the needle point are clamped to awooden beam at a distance equal to the radius of the circle. The
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
