A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 15
GEOMETRICAL DRAWING § 13 \rith the left hand; then move the triangle A along theedge of B. The edge a b will be parallel to the line c d\and when the edge a b reaches the point g, through which itis desired to draw the parallel line, hold both triangles t … Fig. 6 Stationary with the left hand and draw the line efhy pass-ing the pencil along the edge a b. Should the triangle Aextend too far beyond the edge of the triangle B after anumber of lines have been drawn, hold A stationary withthe left hand and shift B along the edge of A with theright hand…
