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April, 1919 HONNNUUNUUIU IOUT TTT EMMITT THE MARINE REVIEW | ES rnin nmr vavinn rn varavinnrraanranannvannaaramerromcenrnwnrcenemerscrcceccecceecesceerecerrecerrecreecereeorcecercrexerrerrrcerecer rere = UPONAAA WELDING STEEL and IRON PLATE The use of a Wilson Plastic-Are Welder makes riveting in joining steel and iron plate unnecessary, and many shipbuilding and industrial plants have been quick to take advantage of this economy. It is an economy because welding can. be done at approximately half the cost of riveting and while riveted seams let go and become leaky, necessitating weld- ing as a second operation, Wilson Weld- ed seams hold and hold tight, making a second operation unnecessary. The Wilson Plastic-Are Welder will lastingly weld any metal of any bulk as successfully as it will steel or iron plate. The great success of the Wilson Welder in making lasting welds on the nine-foot cast-iron cylinders of the Ger- man ships, and also in numberless other cases, is due to the fact that the critical heat at which the metal should be fused is kept constant at the arc. This predetermined, critical and constant heat eliminates the possibility of burnt metal or voids resulting in failure, common of welds when the critical heat can- not be controlled. Our booklet, “Repair of the German Ships” tells the story of the repair by Plastic-Arc welding, of the 70 cast-iron cylinders and other parts of the interned German Ships—the biggest welding repair job in the history of the world. WILSON WELDER AND METALS Go.,Inc. 14 Rector Street NEW YORK Please mention THE MARINE REvIEW when writing to Advertisers iz on Ke) le eee eer MM a a Fe 3 : 4 4