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Expired
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Edmund Howl
Walter Watkins Attwood
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Individual
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Publication of GB190101303ApublicationCriticalpatent/GB190101303A/en
1303. Howl, E., and Attwood, W. W. Jan. 21. Drawings to Specification. Steam pumps.-Consists of improved steam distributing valve gear. The main valve is moved by steam pressure controlled by an auxiliary piston valve, which is itself moved by steam admitted from the main cylinder at the end of the stroke.
GB190101303D1901-01-211901-01-21Improvements relating to Direct-acting Pumping and other Engines.
ExpiredGB190101303A
(en)