. Electric railway journal . GUmRtfUter Bm4 Stray SwltrtM Stnlcfc. Torm. O S-iOa itolCant*Uk*Bi CONDUCTORS CARREPORT In the office the data on these cards are transferredby the clerks to the monthly record sheets and the cardsare filed in an open rack, which has a compartment forthe records of each car. If a car is overhauled a greentag is put over the end of the card. These tags arevisible after the cards are filed, so that it is very easyto pick out the card giving the overhauling record. Inthe same way the painting of a car is shown by a redtag. The card shown in the illu
. Electric railway journal . GUmRtfUter Bm4 Stray SwltrtM Stnlcfc. Torm. O S-iOa itolCant*Uk*Bi CONDUCTORS CARREPORT In the office the data on these cards are transferredby the clerks to the monthly record sheets and the cardsare filed in an open rack, which has a compartment forthe records of each car. If a car is overhauled a greentag is put over the end of the card. These tags arevisible after the cards are filed, so that it is very easyto pick out the card giving the overhauling record. Inthe same way the painting of a car is shown by a redtag. The card shown in the illustration is for a carthat has been overhauled. Potential Relay Saves Fuses inCompressor Circuits BY GEORGE H. BLECKWEDEL Inspector Long Island Railroad, Morris Park, N. Y. Considerable difficulty was formerly experienced onthe multiple-unit cars of this railroad, due to theblowing of excessive numbers of fuses in the aircompressor motor circuits. These are 30-amp., 600-voltfuses. This fuse blowing was objectionable, not only. Compressor Trolley WIRING DIAGRAM FOR POTENTIAL LIMIT RELAY FORMOTOR-COMPRESSOR CIRCUIT on account of the cost of the fuse, but train delayswere caused due to the motormen having to replaceblown fuses in order to keep up the air pressure. This matter was checked up carefully about fouryears ago and it was found that the fuses invariablyblew on long feeders where the voltage was low. Inmaking tests on these feeders it was learned that whena heavy load was applied, such as was caused by a four-
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