A practical course in mechanical drawing for individual study and shop classes, trade and high schools (1912)
Willard, William Franklin, 1879- · Chicago : Popular mechanics company · leaf 140
Fig. 138 Problem ii,—Fig. 139 is an illustration of a gro-cers scale scoop. The development of A is a pattern of the portionof a cylinder which a tinsmith would be required tolay out for a template. Substitute suitable dimensionsand draw. Draw a center line X-X to begin. Dividethe end view of… … Fig. 139 velopment anywhere convenient and the points pro-jected to corresponding places. SECTIONS OF WORKING DRAWING The value of being able to make sections in a draw-ing where possible constructive difficulties may ariselater, is a part of the draftsmans business. Sectionsare very helpful in…
Mechanical drawing
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