Mechanical Contracting & Plumbing January-December 1908 . the rear of the theatre areone-pipe, with a complete system ofair mains, with automatic drip airvalves for all direct and indirect radi-ators. Included in the heating apparatus area number of coils, placed in the mainstage skylight and in other skylights inthe administration building. Trencheswith cast iron covers for the returnmain are located in the basementfloor, as will be seen from the illustra-tion. The steam and return mains in thebasement except in the plenum chamber, Ventilating Apparatus. The entire auditorium and parts ofthe
Mechanical Contracting & Plumbing January-December 1908 . the rear of the theatre areone-pipe, with a complete system ofair mains, with automatic drip airvalves for all direct and indirect radi-ators. Included in the heating apparatus area number of coils, placed in the mainstage skylight and in other skylights inthe administration building. Trencheswith cast iron covers for the returnmain are located in the basementfloor, as will be seen from the illustra-tion. The steam and return mains in thebasement except in the plenum chamber, Ventilating Apparatus. The entire auditorium and parts ofthe main vestibule are heated by indi-rect radiation. The air is taken inthrough a duct on the roof of the ad-ministration wing about 12 feet abovethe sidewalk level and enters the set-tling or washing chamber, whence itpasses through water sprays and elim-inators. This apparatus is located at the baseof the intake shaft. A water pan 5x8feet and 1-5 inches deep was constructedin the concrete floor, this pan being pro-vided with suitable water supply, drain. Plan of Basement, Royal Alexandra . Th eatre, Showing Heating and Ventilating Apparatus and Plenum Chamber. A separate system of steam and Ieturnmains connects with the indirect heat-ing coils, with valves at the rising lines .supplying the direct together with the risers and radiatorconnections under floors are coveredwith 1-inch air cell non-conducting cov-ering. 9 and. overflow pipe. A specially con-structed strainer occupying 10 per cent,of the area, through which the circulat-ing pump draws its supply, is alsQ PLUMBER AND STEAMFITTER April 8. 1908. placed in the water pan. The initialwater supply is delivered to the spraysin continuous circulation until thetemperature becomes too high for cool-ing purposes, when the supply is re-newed. The apparatus is also arrangedso that a continuous supply of freshwater may be had to maintain a giventemperature. The spray chamber, of heavy galvan-ized iron, is placed immediate
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Keywords: ., book, bookcentury1900, bookdecade1900, bookidmechcontract1908toro
