Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 487
Fig. 1114. Fig. 1115. Side-walls, 8 thick, through which the pipe-sewers pass at the bottom of thewell. Across the open space the sewer is formed in brick, whose bottom sectioncorresponds to that of pipe, side-walls carried up perpendicular to top of sewer; ENGINEERING DRAWING. 471 the flat spaces…
Mechanical drawing
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