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 78
t has been taken off by mistake. After theerasure has been made, it is possible to redraw any part ofthe line with the steel tool. In the event of it being desiredto change a full line into a dotted line, this is very easily doneby simply dotting in the spaces with ink. The width of line may be… … Fig. 32. Example of a Drawing made on Opaque Drafting Fabric,producing White Lines on Dark Background usual drafting instruments without scratching its surface,except at those points where it is desired to draw the lines. An enlarged view of the steel tool used for drawing thestraight lines is…
Mechanical drawing
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