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Walkway around the locomotive, from the cab front, to facilitate inspection and maintenance. [5] [6]: 437 [3]: 67 Frame The strong, rigid structure that carries the boiler, cab and engine unit; supported on driving wheels (43) and leading and trailing trucks (14, 46). [3]: 36 The axles run in slots in the frames.
James Thompson Marshall (1854, Glanford Brigg, Lincolnshire [1] - 1931, Knaresborough, Yorkshire [2]) was an English railway and mechanical engineer known for inventing the 'Marshall valve gear' for steam locomotive use. James Marshall began his engineering career at the Leeds-based Steam Plough Company, and later moved to the city's Boyne ...
The earliest locomotives, such as Stephenson's Rocket, had no cab; the locomotive controls and a footplate for the crew were simply left open to the elements. However, to protect locomotive crews against adverse weather conditions, locomotives gradually came to be equipped with a roof and protective walls, and the expression "cab" refers to the cabin created by such an arrangement.
A locomotive's direction of travel and cut-off are set from the cab by using a reversing lever or screw reverser actuating a rod reaching to the valve gear proper. Some larger steam engines employ a power reverse, which is a servo mechanism, usually powered by steam. This makes control of the reversing gear easier for the driver.
An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [1]It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three-dimensional exploded diagram.
The cab air conditioner was moved from the left (conductor's) side walkway to a position under the cab floor to make space for the six traction inverters (one per axle) that supply the AC current to the traction motors.
A decade before SP's first cab-forward, the North Pacific Coast Railroad, later part of the SP-owned Northwestern Pacific company, rebuilt an 1875 4-4-0 into an oil-fired cab-forward locomotive. This innovative engine was built by William (Bill) Thomas, the NPC master mechanic who was nationally known [ 7 ] and holder of a number of patents.
Diagram of 100-ton unit CNW #1200 800 hp locomotive for Erie Railroad All models have chassis and running gear , generator, traction motors and controls from GE, and Ingersoll Rand provided its 10 × 12 diesel engine. [ 6 ]
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