. The street railway review . SWITCHBOARD. Inn panels each contain one Thompson ammeter, one reversible relay, two signal lamps and a controlling -witch for throwing the oil switch which ..pen- and closes the circuit. The ml switch 1- provided with a motor winch operates automatically a- 1 a- the -witch has been thrown and which keep- it constantly in readiness. nil. SWITCHES AND TRANSFORMERS, to i„ op rated bj a tripping device which 1 co lied bj a mall auxiliary switch al the switchboard. I la two lamp! abovi Hi, ,controlling switches show whether the oil switch 1 open 01 Cl0 ■
. The street railway review . SWITCHBOARD. Inn panels each contain one Thompson ammeter, one reversible relay, two signal lamps and a controlling -witch for throwing the oil switch which ..pen- and closes the circuit. The ml switch 1- provided with a motor winch operates automatically a- 1 a- the -witch has been thrown and which keep- it constantly in readiness. nil. SWITCHES AND TRANSFORMERS, to i„ op rated bj a tripping device which 1 co lied bj a mall auxiliary switch al the switchboard. I la two lamp! abovi Hi, ,controlling switches show whether the oil switch 1 open 01 Cl0 ■ d p I ing bj a 1, ,1 lamp and III, mini by a green I imp. in ... the ming nl hould 1 to ni ■ -1 1 ,,i 1, highi, potential .n in the diagram 1 om,, I ol the m and m iln , ., . ,|, ovi rlo id i , d in plai • ol ihi revet .,1 r< la; on d in parallel with ihi 1 ontrolling witch and lignal lamp , ,11.: 1 ,1 1,., ,,, „, ,j,, olenoid Ig ■ lo , il ,,, ollii I In- pa de of thi 458 STRKKT RAILWAY REVIEW. [Vol XII. No. & each contain .1 power facloi meter, an ammeter and .1 voltmeter, mixing I.
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
