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| qe OkeK enane CARGO HATCH g. ARGO HATCH SPAR OCECK FORWARD GENERAL ARRANGEMENT OF CREW’S QUARTERS ON SPAR DECK AFT AND OF GUEST ROOMS ON SAME DECK FORWARD steel cut gears throughout. of the deck auxiliaries were made by square feet. The boilers have been Deck winches or engines as they are the American Ship Building Co. designed for superheat of 50 degrees called are 9 x 10 inches in size of a Forward of the engine room are Fahr., and a working pressure of 215 new design especially prepared for this located three Babcock & Wilcox ma- pounds per square inch. Four-inch tubes are used. A total of 191 square feet of grate surface is fitted with Aetna shaking grate bars. Induced draft is supplied by a fan driven by a double engine of American Ship Build- ing Co. make, located above the breeching. No heated air is used. Ordinary water is stored in two horizontal steel tanks each of 6000 gallons capacity, located in the dark hold. These tanks are fitted with an electric alarm to indicate water levels. A suction is carried aft to the sanitary pump which conveys water both hot and cold under 40 pounds pressure to all galleys, wash-basins, tubs, sinks, etc., throughout the ship. Large Capacity Ballast System The drinking water is purified by a Griscom-Russell still and is_ piped through a cold storage tank to foun- tain and galley aft and also to the forward galley and other outlets for- ward. Both the sanitary and drink- ing systems meet all the latest re- BOILER ROOM OF THE S. S. HARRY COULBY—THREE BABCOCK & WILCOX WATER quirements of the United States health TUBE BOILERS department. steamer. These engines have cut rine type water tube boilers set fore In a vessel of this type the ballast gears throughout. Hatch engines are and aft. The total heating surface of system is of primary importance and of the standard double type 6 x 6 the three boilers is 9345 square feet must be of large capacity. It is inches in size, compound geared. All and the superheater surface is 750 necessary to be able to empty the bal- an “YO 5: dle YW et Ea 4 = el PILOT HOUSE Ano SUN ROOM GENERAL ARRANGEMENT OF LIVING SPACES—FORECASTLE, PILOT HOUSE AND MAIN DECK FORWARD ON S. S. HARRY COULBY = 18 MARINE REVIEW—October, 1927