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 61
particular scale. The type shown at A ispreferred by most draftsmen as it lies flat upon the drawing-board and permits either scale to be located quickly. There are two general classes of graduations. The firstconsists of graduations for full size drawings, which aredrawings made the same size as… … Fig. 22. Celluloid Templets for drawing Bolt-heads and Machine Handles eighths, sixteenths, thirty-seconds, and sixty-fourths, or intenths and hundredths; in the second class, the main gradua-tions represent feet, and one foot on these reduced scales mayactually measure i| inch, 3 inches, or some…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
