. Electric railway journal . e service on different , as both test cars and reference cars operateunder these same varying conditions, this error is elim-inated, and a decrease in energy consumption can beattributed solely to instruction and to the daily checkingof the individual mans energy consumption.\ Safety Lights Installed OverGrinding Machine In the shops of the overhead department of the Cleve-land Railway, a double-wheel, motor-driven grinder isinstalled in a room which is rather dark. To eliminatethe possibility of anyone touching the wheels while thegrinder is running, t
. Electric railway journal . e service on different , as both test cars and reference cars operateunder these same varying conditions, this error is elim-inated, and a decrease in energy consumption can beattributed solely to instruction and to the daily checkingof the individual mans energy consumption.\ Safety Lights Installed OverGrinding Machine In the shops of the overhead department of the Cleve-land Railway, a double-wheel, motor-driven grinder isinstalled in a room which is rather dark. To eliminatethe possibility of anyone touching the wheels while thegrinder is running, two red lights were installed abovethe grinder and connected in the motor-control circuitso that they would be lighted and, therefore, give warn-ing whenever the machine was running. It is impos-sible for the motor to be running without these lightsbeing turned on. Illumination for working with themachine is provided when needed by a lamp whichhangs directly over the machine, the two warning lightsbeing of very small Drinking-Fountain Water Supply-
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