Chicago : Engineering and Contracting Pub. Co. · leaf 106
stems. Co)If broken it can be recut, thereby reducing the duct in the trench by the contracting company,and after this came the monolithic types,formed in the trench, using covers of con-crete for the top and divisions; or, by meansof rubber or paper tubing filled with water or has to be used,… … A- pv 50— ^-5-6—~-—60— 7-3—-±—6/0—~-3-5 . /7.5-_.. .1 — -17-6 17-g. Ground Line / mm,W*m>>ii?>i in-hi- in f Fig. 15—General Plans of Standard Centers for Arches. breakage charges to a minimum. (G) It re-quires a less expensive class of labor thanother classes of conduits, but requires…
Buildings
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