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November, 1926 MARINE REVIEW 89 The “Superior” Spur 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 t Thorkote—A Perfect Protective Coating | Permanently Guards Against Corrosion : Every problem in the marine field requiring a protective agent against corrosion is solved by Thorkote— pure asphalt, emulsified in water. It may be applied by brush, trowel, or spraying. The water soon evapo- rates, leaving behind acoating possess- ing the pliability and imperviousness to all corrosive agents which have made asphalt the most dependable protective material since the begin- ning of history. Thorkote is watertight and rustproof. Its use gives complete and perma- nent protection for Boilers, Tanks, Coolers, Bulkheads, Stacks, Decks, Cofferdams, Hulls, Tail Shafts, Bunk- Deck lines in the past have been left uninsulated because there was no ralpeapereabe pe kore ee otis che taal conics ae caren ers, and numerous other marine Illustration shows S.S. Hagood, with deck lines protected by Thorkote. purposes. The Thorkote Products Co. Inc., A long list of satisfied users furnished 135 Liberty Street, New York City on request. Please mention MARINE REVIEW when writing to Advertisers