. Operation of trains and station work and telegraphy . es-sary. The apparatus consists of the three essential elementsabove mentioned, namely, generator, regulator and auto-matic switch, together with certain minor auxiliary parts,the function of which is of a protective nature, or whichpromote convenience in installation. Generator.—The generator in operation is essentiallysimiliar to a stationary generator used for ordinary light-ing work. Regulator or Bucker.—In any car lighting systememploying a variable speed generator, it is necessary to 166 HEATING AND LIGHTING CARS 167 provide regulat
. Operation of trains and station work and telegraphy . es-sary. The apparatus consists of the three essential elementsabove mentioned, namely, generator, regulator and auto-matic switch, together with certain minor auxiliary parts,the function of which is of a protective nature, or whichpromote convenience in installation. Generator.—The generator in operation is essentiallysimiliar to a stationary generator used for ordinary light-ing work. Regulator or Bucker.—In any car lighting systememploying a variable speed generator, it is necessary to 166 HEATING AND LIGHTING CARS 167 provide regulation in two circuits: First, the generatorfield circuit to prevent undue increase in voltage as thespeed increases, and Second, between the batfery ter-minals and the lamp mains, to prevent the fullcharging voltage of the battery being impressed onthe lamps. In the ordinary system, this regulationis obtained more or less effectually by means ofautomatically operated rheostats. In the Bliss System,the automatic rheostat with the attendant mechanical. FIG. 73. GENERATOR SHOWING PERFORATED PULLEY ANDSUPPORTING ARMS. complications, is eliminated, and regulation is obtained byopposing the flow of the current by means of counter volt-age, which varies with the operating conditions. Thiscounter voltage may be said to- buck the current whichtends to flow through the generator field circuit, and alsofrom the battery terminals to the lamps, and in conse- 168 RULES FOR MOVEMENT OF TRAINS, quence of this action, the regulator has come to be gener-ally termed the Bucker. Mechanically considered, it consists of two armaturesof sufficient size to permit rugged construction, bothmounted on a single shaft, and enclosed within a singlecasing. One of these armatures, with its correspondingfield, forms a simple shunt motor, and the other arma-ture constitutes the regulating device and is providedwith two windings and two commutators, one connectedin the generator field circuit, and the other be
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadtrains, booky
