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Worthington Pump and Machinery Corp
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Worthington Pump and Machinery Corp
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Application filed by Worthington Pump and Machinery CorpfiledCriticalWorthington Pump and Machinery Corp
Application grantedgrantedCritical
Publication of FR551498ApublicationCriticalpatent/FR551498A/fr
F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
F22D1/42—Feed-water heaters, i.e. economisers or like preheaters specially adapted for locomotives