. The Street railway journal . iously mentioned in these columns, but further particularsare now available. The test was conducted at the BellevilleAvenue car house of the Public Service Corporation, whichgenerously placed this structure at the disposal of the under-writers, and also supplied a number of cars to be burned forthe purpose of this test. The car house, a section of which ispresented herewith, is a frame structure 80 ft. x 150 ft., withlight wood, slate-covered roof, with heavy wood trusses spaced16 ft. 8 ins. between centers, and with the lower chord of thetrusses 16 ft. 8 ins. fr
. The Street railway journal . iously mentioned in these columns, but further particularsare now available. The test was conducted at the BellevilleAvenue car house of the Public Service Corporation, whichgenerously placed this structure at the disposal of the under-writers, and also supplied a number of cars to be burned forthe purpose of this test. The car house, a section of which ispresented herewith, is a frame structure 80 ft. x 150 ft., withlight wood, slate-covered roof, with heavy wood trusses spaced16 ft. 8 ins. between centers, and with the lower chord of thetrusses 16 ft. 8 ins. from the former. The peak of the roof is33 ft. 7 ins. from the floor; the distance between tracks is ex-treme, being 6 ft. 1^4 ins. and 6 ft. 3^ his. With cars in posi-tion, the distance between car bodies on the first and secondtracks is 41 ins., and between the second and third tracks is44 ins. There are seven tracks in the car house, but for reasonsof economy it was not considered advisable to sprinkle morethan three of SECTION OF CAR HOUSE, SHOWING ARRANGEMENT OF SPRINKLERS The car house was fitted with the dry-pipe system of auto-matic sprinklers, with two different makes of sprinkler headsand two dry valves. Half of the sprinklers and one dry valvewere furnished by the General Fire Extinguisher Company, ofProvidence, R. I., manufacturers of the Grinnell system, andthe other half and the other dry valve by the ManufacturersAutomatic Sprinkler Company, of New York. There werealtogether 192 sprinklers on the Grinnell dry valve and 193 onthe Manufacturers dry valve, making a total of 385. Thesprinklers were upright and the two makes were alternated onall the lines. In this connection it might be said that a dry-pipe systemof sprinkler piping is one from which the water supply is heldback by a dry valve located at some point in the supply pipe,as at the base of a riser. The sprinkler piping is filled with airunder pressure. When a sprinkler opens it releases the air,which
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
