| 21. | In 1892 a traction engine was purchased to help transport stone to the railway.
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| 22. | Small numbers of portables continued to be built even after traction engine production ceased.
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| 23. | The Avery company made many traction engines, such as the 1907 steam tractor model.
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| 24. | In 1956, Rangiora hosted New Zealand's first traction engine rally at the Rangiora Showgrounds.
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| 25. | By distributing the traction engine, the train isn't limited by a central traction system.
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| 26. | Sulzer Brothers later discontinued their rail traction engine business.
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| 27. | In 1890, Holt built his first experimental steam traction engine, nicknamed " Old Betsy ".
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| 28. | However, it is included in this list because the traction engine is a direct descendant.
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| 29. | In stationary steam engines, traction engines and compound expansion.
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| 30. | Model traction engines, powered by steam, are manufactured by several companies, notably Mamod and Wilesco.
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