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 111
Fig. 112 108 A PRACTICAL COURSE IN Problem 21.—Select a kitchen utensil which pri-marily must be laid out in pattern and make a develop-ment to scale. A dust-pan, roasting-pan, coffee-urn,colander or coal scuttle is suggested. Use any method … Fig. 113 or combination of methods, but be sure to determinewhether the surface can be developed, or is warped,or any part thereof. Develop a truncated, irregularcone, Fig. 97 (page 95), by triangles. DEVELOPMENT BY REVOLUTION Fig. 112. This method is not so practical, but ismore mathematically…
Mechanical drawing
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