A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 16
hen the sides of the figure make an angle with theT square such that the latter cannot be used. Let the side cdoi the figure be given. Place the long sideof the triangle B so as to coincide with the line c d, andbring the triangle A into position against the lower side of B,as shown. Now, holding… … Fig. 7through the points c and d by sliding the triangle B on thetriangle A, as described in connection with Fig. 6. Meas-ure off the required width of the figure on the line c e,reverse the triangle B again to its original position, stillholding the triangle ^ in a fixed position with the left…