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 1292
gs may be used in any of the holes ofthe switchboard, as they are insulated, except at the tip,and when inserted connect with the line strips only. The transfer of circuits from one generator to anothergives trouble to dynamo tenders who are not familiar withthe operation of these plug… … Fig. 581 1258 Steam Engineering trates the successive steps for transferring the lamps oftwo independent circuits from two generators to one with-out extinguishing the lamps on either circuit. This process is a very simple example of switchboardmanipulation, but illustrates the method used for all…
