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Herbert John Haddan
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Publication of GB190224761ApublicationCriticalpatent/GB190224761A/en
24,761. Haddan, H. J., [International Steam Pump Co.]. Nov. 11. Drawings to Specification. Steam pumps.-A steam pumping-engine is fitted with a tappet gear actuating an auxiliary oscillating valve which controls the supply of steam to the main slide valve. The main valve is of the piston type and is free. The ports enter the cylinder some little distance from the end, so that the piston is cushioned.
GB190224761D1902-11-111902-11-11Improvements in and relating to Pumping and other Engines
ExpiredGB190224761A
(en)