Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1281
!: <?// 5iv/tch cperotingBuses on Pane/ I 7r/jo Cc/Vs Out\ffo/r?g l/ne I ?l ?I ?^^^-^^ Detectors mtv … tot Uffhtn/npl%% /frresters Fig. 569a. c. outgoing line panel Switch Boards 1247 • On the frame of each exciter there are required thefollowing switches^ mounted on a common slate base: 1 S. P. S. T. negative lever switch. 1 S. P. S. T. lever switch for equalizing. The exciter panels are designed…
