58 



ARMATURE CONSTRUCTION 



other designs, where the dovetailed construction is employed. 

 In these cases, two and four dovetails respectively are employed 



FIG. 53. Armature Spider of 300 k.w. Generator, showing one Core Plate in place. 



FIG. 54. Armature Spider of 300 k.w. Generator, showing end Flanges. 



for each spider arm. In all the cases as yet given, except Fig. 58, 

 there have been two parallel rows of spider arms. In Fig. 58, 

 however, and in the case of the 16-pole, 1000 k.w., 90 r.p.m. 



