A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 293
es onl)^—to be erased fromthe plate after the drawing is completed. It has beenshown that base lines are necessary for determining theposition of the different points on a drawing and are 34 PRACTICAL PROTECTION S 15 essential in establishing the first few points in any projec-tion; but as the… … FIG. 13 Represent a foreshortened view of this line in the plan bya line li^ inches long, drawn at an angle of 45° with the baseline of the front elevation, as shown at A B. Fig. 13; drawthe front elevation (also a foreshortened view) at an angleof 30° with the base line. Draw the line A B in the…
