INTRODUCTORY 5 



as such, is not dealt with in this treatise. But when the stator 

 is an armature, as in Fig. 4, it is considered as coming within 

 the scope of this treatise. The armature shown in Fig. 4 is 



FIG. 5. Wound Stator of Alternating Current Machine. 

 Lancashire Dynamo and Motor Co. 



not wound. A is the core, B is the frame, C is an end shield 

 for protecting the windings, and D is one of the end flanges 

 of the frame. Fig. 5 represents a wound stator. i.e. an external 

 armature with its winding in place, but with the end shields 

 removed. Such an armature may be suitable either for an 



