Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 186
nd the steam drum or any other low points 146 HEATING AND VENTILATION 137 or pockets in the high-pressure piping should be dripped to thereturn tank through suitable traps. INIeans should be provided for draining all parts of the systemto the sewer, and all traps and special apparatus should be… … .-, .A - . .J. -^
Architecture · Building · Carpentry
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