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January, 1927 MARINE REVIEW 81 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 ante == SS Sy TH lS SSS | == = i=ai= —IF SNSEi ==i= ete Sf 4 a \\ — i Le J) SHAR Da ° = I ‘a c | yy TT | LE UU 1 | UHL For Particulars Apply Sir Joseph W. tuhaewue Bt. 2 iipekene ees DEAN BeOS. MARINE PUMPS Have the inbuilt Qualities DROP FORGED WELDLESS EYE BOLTS ROLLED THREAD GALVANIZED OR PLAIN O==—mp 4” DIAM. WITH EYE %” INSIDE 66 66 66 iy" 46 66 134” 66 1%” of long life. Users Testify. QUICK SHIPMENT OLIVER IRON AND STEEL CORP. 1001 MurRIiEL ST. PITTSBURGH, PA... Specify Dean Pumps DEAN BROS. (0. INDIANAPOLIS. ESTABLISHED 1869 Branch Offices in New York & San Francisco ESTABLISHED 1863 Please mention MARINE REVIEW when writing to Advertisers