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The Ewing System is a balancing monorail system developed in the late 19th century by British inventor . It is not to be confused with the much later system patented by .[1] In the Ewing System the main wheels of the train run on a single steel rail. The system had been proposed in 1868 by William Thorold, a civil engineer from Norwich, Norfolk. The Ewing system was used in Patiala State Monorail Trainways. The Patiala monorail is preserved in National Rail Museum at New Delhi. It is still in running condition. It was also used on Kundala Valley Railway from 1902 to 1908.

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  • Ewing-System (de)
  • Ewing System (en)
  • Ferrovia Ewing (it)
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  • Das Ewing-System ist ein Einschienenbahn-Konzept, das Ende des 19. Jahrhunderts von patentiert wurde. Es ist nicht identisch mit dem sehr viel später von patentierten System. Beim Ewing-System laufen Räder mit doppeltem Spurkranz auf einer entlang einer Straße verlegten Stahlschiene. Über diese Räder wird der größte Teil des Gewichts (etwa 95 %) übertragen. Ein Stützrad, oder bei längeren Wagen zwei Stützräder, übertragen den kleineren Teil des Gewichts auf die Straße, damit das Fahrzeug nicht umkippt. Der Antrieb konnte wie bei der Kundala Valley Railway mit Zugtieren oder bei den von William Thorold gebauten Patiala State Monorail Trainways mit Dampflokomotiven erfolgen. (de)
  • La ferrovia Ewing è un tipo di ferrovia monorotaia in cui i veicoli viaggiano su una singola rotaia Vignoles centrale e sono mantenuti in equilibrio da ruote lisce che corrono su strada normale su uno dei due lati. (it)
  • The Ewing System is a balancing monorail system developed in the late 19th century by British inventor . It is not to be confused with the much later system patented by .[1] In the Ewing System the main wheels of the train run on a single steel rail. The system had been proposed in 1868 by William Thorold, a civil engineer from Norwich, Norfolk. The Ewing system was used in Patiala State Monorail Trainways. The Patiala monorail is preserved in National Rail Museum at New Delhi. It is still in running condition. It was also used on Kundala Valley Railway from 1902 to 1908. (en)
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  • Das Ewing-System ist ein Einschienenbahn-Konzept, das Ende des 19. Jahrhunderts von patentiert wurde. Es ist nicht identisch mit dem sehr viel später von patentierten System. Beim Ewing-System laufen Räder mit doppeltem Spurkranz auf einer entlang einer Straße verlegten Stahlschiene. Über diese Räder wird der größte Teil des Gewichts (etwa 95 %) übertragen. Ein Stützrad, oder bei längeren Wagen zwei Stützräder, übertragen den kleineren Teil des Gewichts auf die Straße, damit das Fahrzeug nicht umkippt. Der Antrieb konnte wie bei der Kundala Valley Railway mit Zugtieren oder bei den von William Thorold gebauten Patiala State Monorail Trainways mit Dampflokomotiven erfolgen. (de)
  • The Ewing System is a balancing monorail system developed in the late 19th century by British inventor . It is not to be confused with the much later system patented by .[1] In the Ewing System the main wheels of the train run on a single steel rail. The system had been proposed in 1868 by William Thorold, a civil engineer from Norwich, Norfolk. The major benefit of trains is that they run on steel tracks. Steel rail can carry more load with less rolling friction than any other mode of ground transport. However there are several disadvantages of laying conventional railway tracks consisting of two rails: Both rails have to rise and fall and bank together. Laying two rails requires a lot of space and maintenance. The turning radius of the train is restricted by the difference in length or distance traveled between the inside and outside rails due to curve resistance. Curve resistance means that the wheels on the inside rail travel a shorter distance than the wheels on the outside rail to get the vehicle around a curve. The trains can only turn to the limit where its outer wheels can cope with the additional required speed. If the outer wheels fail to maintain or reach the required speed, the train may derail. W.J. Ewing implemented a monorail system, with only one rail and double flanged rail wheels, that had been proposed by William Thorold in a lecture to the British Association in 1868. This system avoided all those problems, since it was laid out along the side of a road, it took up very little land. Further, the road or balance wheel's main purpose was to balance the train and to keep it upright. The balancing wheel on the road carried only 4% or 5% of the load, it did not subtract much from the steel wheel-steel rail efficiency. As the track was on side of the road, it was no obstacle to vehicles crossing it. Further, since it was a monorail with a supporting wheel on the ground, the issue of curve resistance did not arise in Ewing System, since the wheels were placed on a single track only. The Ewing system was used in Patiala State Monorail Trainways. The Patiala monorail is preserved in National Rail Museum at New Delhi. It is still in running condition. It was also used on Kundala Valley Railway from 1902 to 1908. (en)
  • La ferrovia Ewing è un tipo di ferrovia monorotaia in cui i veicoli viaggiano su una singola rotaia Vignoles centrale e sono mantenuti in equilibrio da ruote lisce che corrono su strada normale su uno dei due lati. (it)
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