. Bell telephone magazine . Fig. 2. A 60-kilowatt Stationary Diesel Emergency Set A set of this size may be installed to serve two and sometimes three small dial units, andmay be used temporarily as a portable set in an emergency. Fig. 3. A 535-kilowatt Stationary Diesel Emergency Set Including engine, generator, and concrete base, it weighs nearly 100 tons, and has sufficientcapacity to supply power to five large dial units and, in addition, to care for essential building services in an emergency

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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1920, bookyear1922