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August, 1926 MARUN BD REV LEW 59 The “Superior” Spr Geared Windlass WE ALSO BUILD Windlasses Steering Gears Capstans Gypseys Winches Hoisting Engines Swinging Engines Power Pawl Posts Dredge Deck Engines Anchor Hoists Scow Winding Gears Drill Frame Hoists Suction Pipe Hoists Steel and Wooden Derricks Manufacturers of Steam and Electrical Machinery SUPERIOR IRON WORKS COMPANY SUPERIOR, WISCONSIN 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 eee — i aa saa a i | =< i | Ht | | il Ven er For Particulars Apply Sir Joseph W. Isherwood, Bt. leit avenue, London, EC. 3 Please mention MARINE REVIEW when writing to Advertisers