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90 THE MARINE REVIEW October, 1920 | THE Mason Improved Marine Reducing Valve Can be installed close to deck or bulkhead ACCESSIBLE SPRING Write for circulars to MASON REGULATOR COMPANY SAN FRANCISCO, CAL. BOSTON, MASS. The Mason No. 126 Improve Marine Reducing Valve 4 Learn all about the f FRAN CE SPECIAL FEATURES of Marine Type MARTELL PACKINGS Before specifying or placing orders : Metallic P acking WRITE FOR CATALOG THE MARTELL PACKINGS CO. For All ELYRIA, OHIO, U.S. A. Conditions of Service GET THE BEST Eastern Representative Western Representative W. S. Hazlett Atlas Pkg. & Rubber Co. Room 603, 123 Liberty St. Pier No. 2, Ft. Yesler Way FRAN CE P ACKING COMP ANY New York,NeYo as, Seattle, — TACONY—PHILADELPHIA, PENNA. EL Cele = = Mobile. Aix: 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- tion of your steam as fast as it accumulates. 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. pits Se ee WRITE FOR CATALOG We are also manufacturers of Steam The V. D. Anderson Company, Cleveland, Ohio 35,0" Sesto; Water Columns; Air >... Superiority of (gy U.S. Injectors Easier to Op:rate—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. U. S. Injectors are automatic U. S. Injectors operate automatically with wide open suction at a lower steam than most injectors. With throttled suction they are auto- 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. Protect your boiler against feed-troubles by installing U. S. Injectors. SOLS OVERFLOW Veins Write for Catalog Dand ‘‘Engineers Red Book’’ Please mention THE Marine Review when writing to Advertisers