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The EMD SW1500 is a 1,500 hp (1,119 kW) diesel-electric switcher locomotive built by General Motors' Electro-Motive Division from 1966 to 1974. [1] The SW1500 replaced the SW1200 in the EMD product line.
Animation of a spinning scroll compressor. Léon Creux first patented a scroll compressor in 1905 in France and the US. [2] Creux invented the compressor as a rotary steam engine concept, but the metal casting technology of the period was not sufficiently advanced to construct a working prototype, since a scroll compressor demands very tight tolerances to function effectively.
A professional air audit is the best way to identify if a VSD compressor is most appropriate for any given compressed air application. [2] These audits are available from various companies that specialize in the implementation of compressed air equipment, which can determine the most efficient controls for a compressed air system – including ...
The Alton and Southern Railroad was formed in 1910, and in 1913 it absorbed the Denverside Connecting Railway (founded in 1910), and the Alton and Southern Railway (founded in 1911). The company was operated as a subsidiary of the Aluminum Ore Company , which was itself a subsidiary of the Aluminum Company of America (Alcoa), to serve the Bayer ...
O-scale models of the Alton Limited's Pacifics or passenger cars have been produced at different times by Lionel, MTH, and K-Line. K-Line's 6-car heavyweight set (K-44081) is modeled on the 1924 equipment, and includes the "Armstrong" RPO, No. 707 baggage car, "Webster Groves" coach, "Springfield" diner, "Wilson" parlor, and "Chicago ...
Eaton hybrid power systems: mounted between the UltraShift automated manual transmission and clutch is an electric motor/generator, connected to a power inverter using lithium-ion batteries, controlled with an electronic control module.
A motor-driven air compressor furnishes the compressed air; an electric pump governor controls the operation of the same; the brake and triple valves are of different design to accord with the conditions for which they are required. Otherwise the description of the Westinghouse Air Brake, which see, covers the traction brake also.
The screw pump is the oldest positive displacement pump. [1] The first records of a water screw, or screw pump, date back to Hellenistic Egypt before the 3rd century BC. [1] [3] The Egyptian screw, used to lift water from the Nile, was composed of tubes wound round a cylinder; as the entire unit rotates, water is lifted within the spiral tube to the higher elevation.