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"TAE Marine REVIEW Balanced Main Valves for Every Service OLD ENGINES BECOME STRONG and VIGOROUS AND NEW ONES REMAIN SO WHEN EQUIPPED WITH American Semi-Plug Piston Valve With a record of 91.341 miles without cost and in per- fect condition. Frictional contact of the rings against the Valve Chamber, AUTOMATICALLY regulated. Combined advantages of the Plug and Snap-ring Valves without the drawbacks of either, Wears the Valve Cham- Jack Wilson Double Acting Slide Valve With a record of 168,324 miles without facing Valve Seats. Double admission and double exhaust. Correctly Bal- 'anced in all positions of stroke. Guaranteed STEAM TIGHT. Made for Internal or External admission. Fit- ted to old or new power. Gdarentced for pressure up to ber TRUE. Guaranteed for pressure up to ie pounds. 250 pounds. WE FURNISH VALVES ON APPROVAL. YOU ARE THE JUDGE AND JURY American Balance Valve Company J ERSEY SHORE, PA. r aoe oan Box "© SAFETY" PLASTIC Metallic Packing For Steam, Water, Air, Gas, Hydraulic Machines ,Valves, Etc. - Guaranteed to stand Steam Temperature up to 550 degrees F,. and Hydraulic Pressure to 5,000 lbs. per square inch. "It floats with the Rod." Highest Award World's Fair, St: Louis. Manufactured Solely by STEEL MILL PACKING COMPANY, Detroit, Michigan, U.S. A. The ALLEN Dense Air Ice Machine Contains no chemicals; only air at 6 5 lbs. pressure in pipes. It is placed in the engine room and attended by the regular engineers, while ice- making -box, meatroom and galley and pantry refrigerators are at the usual distant places. Proven by many years' seivice in the tropics on U. S. men of war, steam yachts and passenger steamers. MORE THAN 150 IN DAILY SERVICE ON STEAM VESSELS It is as noiseless as any steam engine. H. B. ROELKER 41 Maiden Lane, New York. punoig ee VUSCr ieee Send for FREE SAMPLE and Particulars