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166 THE MARINE REVIEW MARINE ENGINES Sizes 1400 H.P. to 2800 H. P. Stern Tubes Tail Shafts Propellers Tunnel Shafting Heavy Gray Iron and Semi-Steel Castings. Prices submitted on application Hardie-Tynes Manufacturing Co. Engine Builders BIRMINGHAM, ALA., U.S.A. The Anderson Model “D” Steam Trap makes your steam using apparatus more efficient by delivering live hot steam to it It also permits you to obtain the highest efficiency from each square foot of heating surface in your plant, by removing the condensa- =m eels ca, , tion of your steam as fast as it accumulates. ‘ pee | : It operates continually and automatically at pressures varying from 250 pounds, to gravity. All parts of the Model “D” Steam Trap are accurately machined to solid gauges and can be replaced at any time, as every part is made interchangeable. WRITE FOR CATALOG We are also manufacturers of Steam The V. D. Anderson Company, Cleveland, Ohio 425.0" Sst; Wate: Columns; Ai U. S. Injectors _ Superiority of are automatic w U. S. Injectors 4 3 LA f, U. S. Injectors operate automatically # ee ES) el with wide open suction at a lower steam than most injectors. With throttled suction they are auto- B matic at any pressure sufficient to» enable injectors to get the water. They work equally as well as a lifting injector or as a non-lifter. ; ee : : I Protect your boiler against feed-troubles weer ai by installing U. S. Injectors. OVERFLOW _ Easier to Operate—Turning on steam starts U. S. Injectors. Wider Range—U. S. Injectors start at lower steam and work to higher steam than any other injector. Hot Water—They handle _ hotter water and feed hotter water into boiler than any other injector. AMERICAN INJECTOR CO. 176 Fourteenth Ave. Detroit, Mich. Write for Catalog D and “‘Engineers Red Book’’ Please mention THE Marine Review when- writing to Advertisers Bigs avs rh a a ge,