Joy valve gear

Joy valve gear

Joy valve gear is a type of steam locomotive valve gear, designed by David Joy (3 March 1825 – 1903), Locomotive and Marine engineer, and patented (no. 929) on 8 March 1879. The British patent has not been found but the US patent (US252224 of 10 January 1882) has. Joy's gear is similar to Hackworth valve gear but has a compensating mechanism which corrects for "the slight inequality in the motion of the valve arising from the arc of the lever".
aircraft
http://dbpedia.org/resource/Joy_valve_gear
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Joy_valve_gear
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Joy valve gear

Joy valve gear is a type of steam locomotive valve gear, designed by David Joy (3 March 1825 – 1903), Locomotive and Marine engineer, and patented (no. 929) on 8 March 1879. The British patent has not been found but the US patent (US252224 of 10 January 1882) has. Joy's gear is similar to Hackworth valve gear but has a compensating mechanism which corrects for "the slight inequality in the motion of the valve arising from the arc of the lever".
aircraft
http://dbpedia.org/resource/Joy_valve_gear
has abstract
Joy valve gear is a type of st ...... has been replaced by a slide.
@en
Парораспределительный механизм ...... российские Од («джойка») и Нд.
@ru
膠式汽門（Joy valve gear），是活動閥門齒輪的類 ...... 10型蒸汽機車（現只有一台BK24保存於國立成功大學）使用。
@zh
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Joy valve gear is a type of st ...... ng from the arc of the lever".
@en
Парораспределительный механизм ...... российские Од («джойка») и Нд.
@ru
膠式汽門（Joy valve gear），是活動閥門齒輪的類 ...... 10型蒸汽機車（現只有一台BK24保存於國立成功大學）使用。
@zh
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Joy valve gear
@en
Парораспределительный механизм Джоя
@ru
膠式汽門
@zh
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