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Photo of the S.S. Yarmouth Courtesy of the William Cramp & Sons Ship and Engine Building Company Again Select DeLaval Gears oe three years ago, the Eastern Steamship Lines, Inc., placed in service between New York and Boston, two high class twin-screw passenger vessels, the ‘‘Boston’’ and the ‘‘New York’’. Each vessel was driven by two compound turbines of 3800 HP. each, through De Laval two pinion, double helical speed reducing gears. The reduction gears installed on the ‘‘New York’’ and ‘‘Boston’’ have proven entirely satis- factory, as shown by the fact that the ‘‘Yarmouth”’ and the ‘‘Evangeline’’, now being built by the Wm. Cramp & Sons Ship & Engine Building Company for the Eastern Steamship Company, are equipped with De Laval gears. These vessels are twin screw vessels requiring 3800 shaft horse power for each screw. Similarly, satisfactory service has led the Southern Pacific Company to install De Laval tur- LOCAL OFFICES bines and gears in succession on the steamships ‘* Bl Coston’’ (ex “Bien Ville’) of 7100 HP. “Et Oceano’’ of 6000 HP., and on a third vessel the **S.S. Dixie’? now being built at the Federal Ship Building Company’s yards, which is to be equipped with a De Laval compound turbine, operating on steam at 350 lbs. gage pressure and 150° superheat and developing 8000 HP., when driving the propeller at 90 RPM through De Laval double reduction gears. It is expected that this ship will operate on less than .75 pounds of oil per shaft horse power. When weight, fuel and all other operating ex- penses are taken into consideration along with reliability and flexibility of control, the De Laval Geared Marine Turbine stands foremost among prime movers for marine service. _ Submit data, and our engineers will gladly supply estimates. e Laval Steam Turbine Co. LOCAL OFFICES Atl Sleveland Hel Pittsburgh Seattle once Doe Hoilala Trenton, New Jersey Portland, Ore. Spokane pe Dulas oun Kansas. City Montreal New Orleans te City ee Sse? aon: Ties Se Los Angeles New York Philadelphia San Francisco 649 Manufacturers of Steam Turbines, Centrifugal Pumps, Centrifugal Blowers and Compressors, Double Helical Speed Reducing Gears, Worm Gears, Hydraulic Turbines, Flexible Couplings and Special Centrifugal Machinery MARINE REvIEw—April, 1927 25