. The Street railway journal . FIG. lo.~PRESSES FOR INSULATING ARMATURE COILS an ordinary platform scales to measure the torque. Thecurrent is regulated during a test by a controller, and re-sistance mounted on a hand truck, as seen in Fig. 12. Toobtain current, it is only necessary toplug in two jacks in the posts undereach testing rack. The leads for thecontroller are then run, and connectedto the motor leads by temporary con-nectors, and all is ready for the test. For moving armatures around theroom, a block and tackle hung from anoverhead track furnishes all the facili-ties. Besides regula
. The Street railway journal . FIG. lo.~PRESSES FOR INSULATING ARMATURE COILS an ordinary platform scales to measure the torque. Thecurrent is regulated during a test by a controller, and re-sistance mounted on a hand truck, as seen in Fig. 12. Toobtain current, it is only necessary toplug in two jacks in the posts undereach testing rack. The leads for thecontroller are then run, and connectedto the motor leads by temporary con-nectors, and all is ready for the test. For moving armatures around theroom, a block and tackle hung from anoverhead track furnishes all the facili-ties. Besides regular fixed armatureracks there are plenty of portable iron FIG. II.—TESTING FRAMES FOR BRAKE TESTS OF ARMATURES Before sending an armature out of this department to beput in service at some car shop it is put in a testing caseand run under a friction brake test. The motor field cas-ings mounted in testing frames into which the armaturesunder test are placed are located in one end of the arma-ture room, and are shown in Figs. 11
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
