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angle architect arrows auxiliary projection auxiliary view balusters basement BENCH GRINDER block bolts break brick broken Cast Iron center line circle conventions cross hatching dash detail drawings diameter dimension lines door dotted lines draftsman drawn eleva end view extension lines fireplace flanges floor plans flue foreshortened freehand front view furnace room grinder head groove hidden edge lines illustrated inch scale indicate Isometric joists kind of drawing kind of line light lines represent locate machine masonry mechanical drawing necessary numerals object omitted orthographic drawing perspective drawing picture plane piece piers pipe plan and elevation Plate Porch Column QUESTIONS AND PROBLEMS reader reading repre rest brackets roof screw threads set screw shade lines sheet shown in Fig side view sion square stairs structural steel student will note surfaces switches symbols Tee-Square thickness three views tion top and front top view usually vertical view shows wall width workman
Page 48 - Walls of frame buildings are conventionalized on floor plans by two parallel lines spaced at a distance apart equal to the thickness of the walls — usually 6
Page 12 - The theory on which orthographic drawings are made is a little more complicated than...
Page 48 - Windows are sometimes drawn with one line representing a sash and sometimes with two...
Page 9 - It is a drawing of an object as it appears to the eye of the draftsman.