Crawshaw, Fred D. (Fred Duane), b. 1874, Phillips, J. D. (James David), 1869- joint author · Chicago, New York, Scott, Foresman and company · leaf 332
. Draw a line at right angles toeach of the intersecting lines with the triangles, as described onpage 125. Lay off B D and E C equal to the radius of arc. Drawlines D F and E F parallel to A B and A C, respectively, asdescribed on page 125. F is the center of the arc. The pointsof tangency K and L… … Pig. 377. To Draw a Circle of Given Eadius Taxgext to Two Circles Instructions: From the center of circle A with a radiusequal to R plus the radius of A, and from the center of B witha radius equal to R plus the radius of B, draw two arcs inter-secting at C, which is the center of the required…
Mechanical drawing
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