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"TRAE MarINeE REVIEW ti Strong, Simple | ww... and Automatic ~ WATER The scientific carefully-worked- out design of the U.S. Automat- ic injector provides maximum strength atevery point. TheU. S. Automatic holds the world's record for longest life, greatest durability, greatest reliability and 100 per cent efficiency. Every part of the Automatic ¥. Injector accessible and easily cleaned. All parts accurate and interchangeable. Starts at lower steam--- works to higher than any other. If you want the . surest, safest, easiest-to-operate injector, buy the U. S. Automatic. Ask for the Certificate of Range and Capacity and see that the name "U. S." is stamped on the injector. Engineer's Red Book Free ~ a reliable manual of information--practical and trustworthy--valuable to every steam user. Free on request. AMERICAN INJECTOR CO., Detroit, Mich. Makers ef "Moon" Automatic Grease Cups, '* Never Fail" Orank Pin Oilers and full line of Water Heaters, Ejectors, The Word "PENBERTHY"' is as familiar to the engineer as the Goddess of Liberty is to the American Public. Actual tests back up every claim we make for the "Penberthy"--IT ALWAYS WORKS. The Penberthy line includes:--The old and tried "Penberthy" Automatic and Auto-Positive Injectors, Ejectors, Oil and Grease Cups, Water Gages, Guge Coc&s and other steam specialties. Catalog No. 22 shows them all. The Penberthy publication "ENGINEER & FIRKMAN" is a 32 page. journal-- ' bright and sparkling from. cover to cover--full of subjects interesting to the engineer and fireman of today. Send for free sample copy. USED | PENBERTHY INJECTOR COMPANY, DETROIT, MICH., U.S. A. Fire Piugs, etc. i (Largest Manufacturers of Injectors in the World) ~ _ : , 4 ' Branches: New York,N.Y. London, Eng. Canadian Factory: Windsor,Ont.,Can. . By over SOO 000 ENGINEERS | THE ROBERTS SAFETY WATER-TUBE BOILER CO. ye SS Marine --- |. Water Tube | Boilers (Generators of the Highest Quality of Steam OVER 1500 IN USE LUNKENHEIMER FLANGED HUB BRASS VALVES. Used the world over and are universally . acknowledged the best. & _ Brass valves of this kind are extensively used in the United States Navy and in Marine work, where _ strong, durable and . practical construc- - tions, only are. em- ployed. oe & They are made in two patterns, Medium and Extra Heavy . and are guaranteed to stand steam working pressures up to 150 and 3co lbs. respectively. ' Your. local dealer should have.them, if Sas write us. THE LUNKENHEIMER COMPANY Jf Largest Manufacturers of High Grade Send for circulars \ and stock sheet ee | MAIN OFFICB 39 Cortlandt St. New York City . : Engineering Specialties in the world. Phone 599 Cortlandt General Offices & Works : CINCINNATI, OHIO, U. S, A, ' Works: Red Bank, N. J. Cable Address LONDON, 8. E. NEW YORK 9648 Fulton "St; 85 Great Dover St. Phone, 49 Red Bank ' . ¢Bruniva"