A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 22
nt. The lead for the compasses should be sharpened inthe same manner as the pencil, but should have its widthnarrower. Be sure that the compass lead is so secured thatwhen circles are struck in either direction, but one line ivillbe draxvn with the same radius and center. 13. Inking.—For drawing… … Fig. 15 shown in Figs. 15 and 16, bearing lightly against the T squareor triangle, along the edge of which the line is drawn.After a little practice, this position will become natural, andno difficulty will be experienced. 12 GEOMETRICAL DRAWING 13 1-4. The beginner will find that it is not always…