Model locomotive valve gears.

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Martin Evans has made a special study of locomotive valve gears and has carries out much practical work in connection with them. This book thoroughly covers the whole subject and provides a practical help to all those interested in designing and building model locomotives. Among the valve gears described are Stephenson, Gooch, Allan, Joy, Hackworth, Marshall, Walschaerts, Baker, Beames, Jones Greenly's Corrected, Caprotti and Cossart.