Leeds, Charles Carley, 1870- (from old catalog) · New York, D. Van Nostrand company · leaf 64
.—The student should try to realize that a sur-face is composed of a series of lines. The different methods of developing a surface are usually describedby the kinds of lines used for this purpose. As an instance, in ourpresent lesson we use parallel lines to develop the surfaces of thecylinders.… … c d e ( g 1^ J k m n a be CLAS^ Industrial trade Machinisf name: John W.Roberts date April SO-Oy. THE CARNEGIE TECHNICAL SCHOOLS PITTSBURGH, l>A. School of Apprentices and journeymenmechanical drawing Intersections and DevelopmentsParallel Line Development SCALE Eull Size OtVG. No. C 1021 LESSON…
Mechanical drawing
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