Ruston Proctor twin cylinder horizontal drop valve engine (Rankin Kennedy, Modern Engines, Vol IV).jpg
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Ruston Proctor twin cylinder horizontal drop valve engine (Rankin Kennedy, Modern Engines, Vol IV), Ruston, Proctor stationary steam engines, Horizontal stationary steam engines, Scans from 'Rankin Kennedy, Modern Engines, Vol IV', 1912, Scans from 'Rankin Kennedy, Modern Engines, Vol IV', 1912/undescribed
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ja
ガストン・プロクター 水平落下弁エンジン
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proctor rankin rootage stationariness immobility stationary steam-powered