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'THE MARINE. REVIEW 13 So long as there is water to feed, the U. S. Automatic In- jector will. keep your boiler supplied. It is positively auto- matic. Operates at lower steam pressure and works to higher than any other. 100 percent efficiency ---and absolutely no waste. Saves work for the engineer---saves money for the owner. 300,000 Investigate and you will surely buy Engineers a Use Look for the name '"U.S." Insist on the Certificate of Range and Capacity; it is your _ guarantee of satisfaction. The "U. S." Auto- matic can be bought from your dealer. Engineers' Reliable Red. Book, Free This book is invaluable to every steam user, The information it contains is accurate, prac- tical, dependable. A postal card will bring a copy to you free. AMERICAN INJECTOR CO. DETROIT, MICH. Makers of "Moon"? Automatic Grease Cups, "Never Fail'? Crank Pin Oilers, and full line of Water Heaters, Ejectors, Fire Plugs, etc. HN oe re oo " is Sy ee | : ee These are our reputation builders: Scientific construction, wide range of operation, economy of steam consumption, interchange- able parts. durability reliability Result--The World's Stan- dard Boiler Feeder. Write forcatalog No. 22 showing our full line of injectors, "XL-96" Ejectors, for elevating liquids-- Oilers, Grease Cups, Water Gages, Gage Cocks and other Steam Specialties. Alsoaskfor sample copy of '"Engineer GQ Fireman,"' a 32-page journal of specialinterest to Boiler and Engine Room Men. Writetoday. PENBERTHY INJECTOR CO., Detroit, Mich. BRANCHES-- CANADIAN FAC roRy-- New York, N. Y Pittsburg, Pa London, Eng. Windsor, Ont,, Canada, THE GLEVELAND TOOL & SUPPLY 6o,, "Unique" Metallic Ring steer PACKING. PACKINGS: and ENCINEERS' SUPPLIES. Trade Mark ** Unique" : Patented Convenient to all docks. 1515-19 Columbus Rd. N. W. CLEVELAND, OHIO. 'UNIQUE PACKING is especially fde- signed for high pressures. It is self lub- Katzenstein's Self- ricating and flexible. Can be fitted to any ; ; stuffing box without removing the piston. Acting Netal Packing For pumps, air-compressors and high For PISTON RODS, VALVE STEMS speed engines, Unique Packing is unsur- @ etc. of every description for Steam Engines, passed. Asa packing for ammonia com- Pumps, etc., etc. Adopted and in use by pressors it will be found most satisfactory; | = a ler Sea it is not affected even if frost comes back ane FLEXIBLE TUBULAR METALLIC on the stuffing box. No hot compressor | | PACKING, for slip-joints on Steam Pipes, rods, scored pistons, or loss of oil when and for Hydraulic Pressure. Unique Packing is used. It works well Pike! full particulars and reference, ad- at all times." : e. e eo. lL. KATZENSTEIN & ©O. Unique Engineering Go., General Machinists. 100-102 Hinsdale Street, 358 West Street, New York. BROOKLYN, N. yx.