ELECTRICAL APPARATUS. 



Fig. 270. 



251 



Fig. 270, and is mounted on four stump feet, about 6 or 8 

 inches from the floor, or table, on which it is used. On the 

 shorter arms of the frame, two pillars are attached by screw 

 nuts for receiving the axle of the plate, which axle is made 

 of polished steel, with a brass crank and rosewood handle. 

 The rubbers consist of two cushions of leather, connected 



