Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1336
er.It may be automatic or non-automatic, and may be placedon the back of the switchboard, or arranged for distant con-trol through rods and levers. Through a very simple system of levers, the operatinghandle is connected to a cast-iron cross bar, to which are Oil Switches 1301 fastened the movable… … Fig. 607type b westinghouse oil circuit breaker pole of the breaker. Each stationary contact is supportedby a porcelain insulator, rigidly secured to the frame. Theleads are brought to the terminals of the stationary contactwithin the insulator, forming an unbroken and continuous 1302 Steam…
