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10 The Type “Y’’ Compressor is suitable for use where an efficient, reliable, and economical air supply of moderate volume is needed (sizes ranging from 4 to 31 cu. ft.) . . It has: An efficient means of air cooling. . . A controlled lubricating system, reliable and positive. . . « Ball bearing support of motor and compressor shafts. . . A positive un- loading feature interlocked with lubricat- ing system that protects the compressor by preventing operation against load if oil supply is dangerously low. Rugged construction throughout, assur- ing long trouble-free service. ry 7 r 777 “hese PATROL BOATS and six others, have the new TYPE Y’ WESTINGHOUSE AIR COMPRESSOR The coast guard patrol boats, Dione, Electra, and Pandora, recently launched by the Manitowac Shipbuilding Corp., as well as the three being built by the Lake Union Dry Dock & Machine Works, and the three under construction at the Marietta Mfg. Co.’s shipyards, are equipped with the new WESTINGHOUSE Type ‘Y” Compressor, 11 cu. ft. displacement, that supplies air for alarm whistle. . . This is but one of our several types, ranging in sizes up to 300 cu. ft. displacement, motor- driven and steam-driven, suitable for all classes of marine service. » 1 1 7 1 7 ¢ WESTINGHOUSE AIR BRAKE CO. xX GENERAL OFFICE and WORKS es » WILMERDING, PA. ao a MARINE REVIEWw—September,; 1934