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Francis William Green
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Publication of GB190623129ApublicationCriticalpatent/GB190623129A/en
23,129. Green, F. W. Oct. 18. Heating air.-In an air-heater in which the air to be heated passes through pipes heated externally, each pipe is fitted with a baffle consisting of a spiral strip having wings or vanes 6, which divide and deflect the spiral stream of air to the inner surface of the pipe.
GB190623129D1906-10-181906-10-18Improvement connected with Air Heaters.
ExpiredGB190623129A
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