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December, 1926 NMNARINE REVITE w 69 Progress in Oil-Tank Ship Construction THE “BRACKETLESS—SYSTEM” (PATENTED) Eliminates Bulkhead Brackets. Eliminates Bulkhead Leakage. Greatly simplifies construction. Greatly reduces cost of upkeep and cost of damage repairs. Greatly reduces cost of cleaning tanks. Substantially increases the longitudinal strength beyond the well-tried ‘‘Isherwood System.”’ = a q 4 \ i - Ronde ——— ; fs a | met | 2 a UL Cth 1 HT nae 17 Battery Place, New York and Sir Joseph W. Isherwood, Bt. 4, Lloyd’s Avenue, London, E.C. 3 DROP FORGED WELDLESS FYE BOUTs ROLLED THREAD Engineering Specialties CALVaNien OM PLR REFLEX WATER GAGES Used on all types of boilers by all the Principal Navies of the World “THE WATERSHOWS BLACK” ADVANTAGES: UZ Quick and reliable observation of 4" DIAM. WITH EYE /%” INSIDE the water level. Safe, sure and “ rT 66 yn ss durable at high pressures. Not af- . fected by cold air drafts. Most 134” effective protection against injuries to boilers and workmen, Easily ap- 14” plied to all types of gage glass fittings. When ffilled with WATER the Reflex Gage always appears QUICK SHIPMENT BLACK. When empty it instantly shows WHITE. No mistake pos- sible. This feature alone is worth many times the cost of the Reflex. OLIVER IRON AND STEEL CORP. Send for catalog of Water Gage 1001 MURIEL ST. Apparatus. MANUFACTURED BY THE PITTSBURGH, PA. JERGUSON GAGE & VALVE co. ESTABLISHED 1863 WINTER HILL, SOMERVILLE, MASS. Please mention MARINE REVIEW when writing to Advertisers