Mechanical Contracting & Plumbing January-December 1912 . s having twohand-holes, with brass trap screws, fer-rules, and screw plugs are placed asshown in Fig. 1. Back of these traps areconnected 6 fresh air inlets which areextended to the height of the sidewalkand end with fresh air inlet valves. The main drainage system connects allfixtures above the sewer level with the street sewer direct and all other fixturesbelow this level are run into two air-and-water-tight 50-gallon sewage eject-ors from which the discharge is connect-ed into the sewers to the street and thefresh air inlets as also
Mechanical Contracting & Plumbing January-December 1912 . s having twohand-holes, with brass trap screws, fer-rules, and screw plugs are placed asshown in Fig. 1. Back of these traps areconnected 6 fresh air inlets which areextended to the height of the sidewalkand end with fresh air inlet valves. The main drainage system connects allfixtures above the sewer level with the street sewer direct and all other fixturesbelow this level are run into two air-and-water-tight 50-gallon sewage eject-ors from which the discharge is connect-ed into the sewers to the street and thefresh air inlets as also indicated in All the floor drains, wash of filters,emptying pipes, overflows of suctiontank, drip tanks, and the waste andoverflow from refrigeration tank areconnected into the ejector, which dis-charges into the 43rd street sewer. The ejectors are set in two bat-teries each of two cast iron 50-gallonunits with 5 inlets and 4 discharagesto and from 6 headers as shown inFig. 2, both being cross connected. Oneach unit is mounted a No. 3 direct act-. ChecH z6Gofe (> Gore c6 C/?ec # Fig. 2b. Plan of one of the Batteries of Automatic 50 Gallon Capacity SewageEjectors in theiEolian Building. 14 PLUMBER AND STEAMFITTER ing balance operating cock (constructedwithout cup leathers, dependent springs,diaphragm or pilot valves) the operat-ing device being float actuated. Eachoperating valve is by-passed to permithand operation if desired. These ejectors are operated by com-pressed air, which is furnished by two5 x 6 x 5 duplex steam driven hori-zontal fly wheel compressors mountedon cast iron sub-bases and set on a con-crete foundation 12 high. The com- pipes are made by screwing a 1 ringon the end of the wrought iron pipe andcalking this into the cast iron between lead pipes, or leadand brass pipes are formed with wipedsolder joints. Between lead and ironpipes brass ferrules, wiped to the leadand calked or screwed into the iron,were used. No cup joints were allowed
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplumbin, bookyear1912
