Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 69
nt consists principally of a straightedge (see Fig. 28) 41 56 MECHANICAL DRAWING which is used in place of a T-square. The straightedge pro-vides means of drawing parallel lines and it is used to locatethe triangles for drawing vertical lines in the same manneras a T-square. The continuous cord to… … Fig. 29. Adjustable Drawing Table to any position on the board. The straightedge of the attach-ment illustrated may also be set at an angle or be removedreadily if the use of a T-square is preferred. Drafting Tables. — The tables used in drafting-rooms maybe non-adjustable or adjustable. The…
Mechanical drawing
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