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are provided immediately in front of the wheels. They knock away smaller obstacles lying directly on the running surface of the railhead. Historically, fenced-off railway systems in Europe relied exclusively on those devices and cowcatchers were not required, but in modern systems cowcatchers have
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in the US often had steps (called "footboard pilots") to allow yard workers to ride with the locomotive. In some countries, footboard pilots are outlawed for safety reasons, and have been removed. Modern locomotives often have front and rear platforms with safety rails, or deeply recessed steps,
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Early on, cowcatchers were normally fabricated of bars mounted on a frame; later on, sheet metal cowcatchers were often used for their additional smoothness, and some cast steel cowcatchers were employed for their mass and smooth shape. Early diesel locomotives followed the same plan.
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On a mainline locomotive, the cowcatcher has to successfully deflect an obstacle hit at speed. The design principle is to push the object upwards and sideways out of the way and not to lift the locomotive on impact.
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have flatter, less wedge-shaped cowcatchers, because a diesel locomotive has the cab near the front, and the crew are vulnerable to impact from obstacles pushed up by the cowcatcher.
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function and rail guards. The required strength of the system is 30 kN (3,059 kp) in the middle of the track and 50 kN (5,099 kp) near the rails.
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fitted across the front, above the coupler. Its purpose is to prevent colliding locomotives from riding up and moving over the locomotive frame through the cab.
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Babbage suggested to
Hodgson of the railway company what was later to be called a 'cow-catcher' for sweeping obstacles off the line.
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was designed to swing out of the way also, so it could not get caught up; this was called a 'drop coupler pilot'.
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To protect the crew and passengers, most modern locomotives have a horizontally grooved steel beam known as an
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513:(215). Pflugerville, Texas: Railway & Locomotive Historical Society: 86–91. Fall–Winter 2016.
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Verordnung ĂĽber den Bau und
Betrieb der StraĂźenbahnen (StraĂźenbahn-Bau- und Betriebsordnung -
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The first practical cowcatcher is widely credited to Isaac Dripps, who fitted one to the
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The typical shape is a blunt wedge with a shallow V-shape in plan. In the later days of
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Device at the front of a locomotive to deflect an obstacle from the track
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to deflect obstacles on the track that might otherwise damage or
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In snowy areas the cowcatcher also has the function of a
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in 1833 shortly after steam haulage commenced on the
497:"Notes and News: Pilot Engines, Past and Present".
51:. Unsourced material may be challenged and removed.
509:"Hubris and the Cowcatcher by John H. White Jr".
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259:Sketch of the Civil Engineering of North America
340:An anti-climber on the front of an Australian
238:in 1830, during his period of working for the
253:. His design is described and illustrated in
317:rail vehicles must have cowcatchers with a
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234:An idea for a cowcatcher was proposed by
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475:(in German). 2008-11-07
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409:. pp.
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523:Categories
479:2009-03-29
383:References
324:Modern US
319:snowplough
224:snowplough
186:locomotive
178:cowcatcher
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230:Invention
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399:(1982).
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