Traiisocruiiis Sociclv A'ar'u/ .Ircliilrcis and Mariiir /■.in/iiiccrs, I'nl. j6, igiS. 



Plate 133 



To illiisfralc f^af^cr on "The . I f^plicatioii of lilcctric II 'chliiuj lu Ship Construction,' 



hy IT Jasper Cox, Esq., Member. 



Fjg. 1. — Gap Portable Spot Welder. 



Fig. 2. — Half of Double V in 54-Inch Ship 

 Plates, Automatically Wiclded at the Rate 

 OF IS Feet Per Hour. 



