. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . Fig. 76. — Station Com pressor and Motor, Showing Gear Case Removed. compressor are accomplished by solenoid devices in the motorcircuit, these devices being controlled by an automatic governor,operated by variations in the air Fig. 77. —Station Compressor and Motor, Showing Controtier. The general scheme of station piping is also shown in Fig. the base of the governor, air is drawn into the low-pres- COMPRESSOR STATION TESTS 259 sure cylinder, compressed to about 70 lbs.
. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . Fig. 76. — Station Com pressor and Motor, Showing Gear Case Removed. compressor are accomplished by solenoid devices in the motorcircuit, these devices being controlled by an automatic governor,operated by variations in the air Fig. 77. —Station Compressor and Motor, Showing Controtier. The general scheme of station piping is also shown in Fig. the base of the governor, air is drawn into the low-pres- COMPRESSOR STATION TESTS 259 sure cylinder, compressed to about 70 lbs. per square inch,forced through the inter cooler, and then into the high-pressurecylinder, where it is compressed to 300 lbs. per square cylinders are arranged in tandem. As the compressor issingle acting, a free air space is obtained between the two pistons,hence no packing is used between them. As the high-pressurecylinder is in the end of the machine and a part of it, there isno packing subjected to a high pressure except the piston ringsand the gasket under the head. A pipe from the high-pressurecyhnder leads to a safety valve, and to a globe valve from whicha 2-in. riser is run into a 2 X l^-in. header, and into one ofthe tanks. The two air tanks are connected at one end by a2i-in. header. From the other end of the se
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Keywords: ., bookauthorlouisian, bookcentury1900, bookdecade1900, bookyear1906
